28-May-2026 21:36:04 --- HST Observing Timeline Report for SMS: 261517A5 --- Page 1 SMS Start: 2026.151:23:40:00 (31-MAY-2026 23:40:00), End: 2026.158:17:50:00 (07-JUN-2026 17:50:00) Observation Set Principal Science Spectral Exposure Begin UT End UT SU Id Investigat Exp # Target Instrume Mode Apertures Elements Time(sec) OB AL EX O# -------- -------- -------- ------- ---------- ------ ---------- -------- ------ ------------ ------------ --------- -- -- -- -- 2026.152 00:10:00 00:11:19 1794577 Pidgeon 77-001 TUNGSTEN WFC3/UVI ACCUM UVIS F475X 1.00 77 01 01 A1 2026.152 00:11:19 00:15:25 1794577 Pidgeon 77-002 TUNGSTEN WFC3/UVI ACCUM UVIS F475X 200.00 77 01 02 A2 2026.152 00:15:25 00:16:29 1794577 Pidgeon 77-003 TUNGSTEN WFC3/UVI ACCUM UVIS F475X 1.00 77 01 03 A3 2026.152 00:18:50 00:36:41 179470X Pidgeon 0X-001 DARK-NM WFC3/UVI ACCUM UVIS F547M 900.00 0X 01 01 A5 2026.152 00:36:41 00:54:02 179470X Pidgeon 0X-001 DARK-NM WFC3/UVI ACCUM UVIS F547M 900.00 0X 02 01 A6 2026.152 00:39:13 00:58:17 18155BP Dallas BP-001 DARK STIS/CCD ACCUM F28X50LP MIRVIS 1100.00 BP 01 01 A7 2026.152 00:58:17 01:00:01 18155BP Dallas BP-002 DARK STIS/CCD ACCUM F28X50LP MIRVIS 60.00 BP 01 02 A8 2026.152 01:00:01 01:05:12 18155BP Dallas BP-003 DARK STIS/CCD ACCUM F28X50LP MIRVIS 60.00 BP 01 03 A9 2026.152 01:05:08 01:22:59 179470Y Pidgeon 0Y-001 DARK-NM WFC3/UVI ACCUM UVIS F373N 900.00 0Y 01 01 AC 2026.152 01:22:59 01:42:57 179470Y Pidgeon 0Y-001 DARK-NM WFC3/UVI ACCUM UVIS F373N 900.00 0Y 02 01 AD 2026.152 01:37:07 01:42:20 17804N9 Loyd N9-001 HD207496 STIS/CCD ACQ F25ND3 MIRVIS 0.70 N9 01 01 AE 2026.152 01:42:55 02:20:39 17804N9 Loyd N9-002 HD207496 STIS/MA1 TIME-T SL200 G140L 2117.00 N9 03 01 AH 2026.152 02:23:33 02:25:02 17804N9 Loyd N9-003 WAVEHITM STIS/MA1 ACCUM SL200 G140L 0.00 N9 05 01 AM 2026.152 01:54:24 02:11:34 1794966 Rivera 66-001 DARK WFC3/UVI ACCUM UVIS 900.00 66 01 01 AI 2026.152 02:17:24 02:34:34 1794967 Rivera 67-001 DARK WFC3/UVI ACCUM UVIS 900.00 67 01 01 AK 2026.152 03:08:33 03:13:10 1813010 Hernandez 10-001 ESO-113-45 STIS/CCD ACQ F28X50LP MIRVIS 4.00 10 01 01 AP 2026.152 03:08:33 04:01:51 1813010 Hernandez 10-002 NONE STIS MSMOFF 20.00 10 02 01 2026.152 03:16:30 03:16:56 1813010 Hernandez 10-003 ESO-113-45 STIS/MA1 ACCUM SL200 G140L 384.00 10 02 03 AR 2026.152 03:13:10 03:16:30 1813010 Hernandez 10-003 WAVEHITM STIS/MA1 ACCUM SL200 G140L 0.00 10 02 02 AQ 2026.152 03:29:01 03:29:27 1813010 Hernandez 10-004 ESO-113-45 STIS/MA2 ACCUM SL200 G230L 185.00 10 02 05 AV 2026.152 03:25:15 03:29:01 1813010 Hernandez 10-004 WAVEHITM STIS/MA2 ACCUM SL200 G230L 0.00 10 02 04 AU 2026.152 03:08:33 04:01:51 1813010 Hernandez 10-005 NONE STIS MSMOFF 20.00 10 02 06 2026.152 03:36:10 03:37:31 1813010 Hernandez 10-006 ESO-113-45 STIS/CCD ACCUM SL200 G430L 27.00 10 03 02 B3 2026.152 03:39:59 03:41:36 1813010 Hernandez 10-006 ESO-113-45 STIS/CCD ACCUM SL200 G430L 27.00 10 05 01 B5 2026.152 03:41:36 03:42:56 1813010 Hernandez 10-006 ESO-113-45 STIS/CCD ACCUM SL200 G430L 27.00 10 06 01 B6 2026.152 03:32:54 03:36:10 1813010 Hernandez 10-006 WAVEHITM STIS/CCD ACCUM SL200 G430L 0.00 10 03 01 B2 2026.152 03:46:12 03:47:39 1813010 Hernandez 10-007 ESO-113-45 STIS/CCD ACCUM SL200 G750L 17.00 10 07 02 B8 2026.152 03:47:39 03:49:06 1813010 Hernandez 10-007 ESO-113-45 STIS/CCD ACCUM SL200 G750L 17.00 10 08 01 B9 2026.152 03:49:06 03:50:17 1813010 Hernandez 10-007 ESO-113-45 STIS/CCD ACCUM SL200 G750L 17.00 10 09 01 BA 2026.152 03:42:56 03:46:12 1813010 Hernandez 10-007 WAVEHITM STIS/CCD ACCUM SL200 G750L 0.00 10 07 01 B7 2026.152 03:52:50 03:54:32 1813010 Hernandez 10-008 CCDFLAT STIS/CCD ACCUM SL200 G750L 12.50 10 0B 01 BC 2026.152 03:54:32 03:56:15 1813010 Hernandez 10-008 CCDFLAT STIS/CCD ACCUM SL200 G750L 12.50 10 0B 02 BD 2026.152 03:25:43 03:30:07 17978AO Guzman AO-001 BIAS ACS/WFC ACCUM WFC F502N 0.00 AO 01 01 AX F660N 2026.152 03:30:07 03:30:22 17978AO Guzman AO-002 DARK ACS/WFC ACCUM WFC F502N 650.50 AO 01 02 AY F660N 2026.152 03:43:28 03:43:43 17978AO Guzman AO-003 DARK ACS/WFC ACCUM WFC F502N 650.50 AO 01 03 B0 F660N 2026.152 04:08:58 04:13:34 17978AP Guzman AP-001 DARK ACS/WFC ACCUM WFC F502N 0.50 AP 01 01 BG F660N 2026.152 04:13:34 04:13:49 17978AP Guzman AP-002 DARK ACS/WFC ACCUM WFC F502N 650.50 AP 01 02 BH F660N 2026.152 04:26:55 04:27:10 17978AP Guzman AP-003 DARK ACS/WFC ACCUM WFC F502N 650.50 AP 01 03 BJ F660N 2026.152 04:20:34 04:26:14 1812060 Yamaguchi 60-001 GAIA6696 COS/NUV ACQ/IM PSA MIRRORB 7.50 60 01 01 BL 28-May-2026 21:36:04 --- HST Observing Timeline Report for SMS: 261517A5 --- Page 2 SMS Start: 2026.151:23:40:00 (31-MAY-2026 23:40:00), End: 2026.158:17:50:00 (07-JUN-2026 17:50:00) Observation Set Principal Science Spectral Exposure Begin UT End UT SU Id Investigat Exp # Target Instrume Mode Apertures Elements Time(sec) OB AL EX O# -------- -------- -------- ------- ---------- ------ ---------- -------- ------ ------------ ------------ --------- -- -- -- -- 2026.152 04:27:08 04:37:23 1812060 Yamaguchi 60-002 GAIA6696 COS/FUV TIME-T PSA G140L 415.00 60 03 01 BN 2026.152 04:37:59 04:46:03 1812060 Yamaguchi 60-002 GAIA6696 COS/FUV TIME-T PSA G140L 415.00 60 05 01 CC 2026.152 04:46:39 04:54:43 1812060 Yamaguchi 60-002 GAIA6696 COS/FUV TIME-T PSA G140L 415.00 60 07 01 CF 2026.152 04:55:19 05:03:23 1812060 Yamaguchi 60-002 GAIA6696 COS/FUV TIME-T PSA G140L 415.00 60 09 01 CI 2026.152 04:27:47 04:28:31 181585V Lothringer 5V-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5V 01 01 BO 2026.152 04:28:31 04:29:15 181585V Lothringer 5V-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5V 01 02 BP 2026.152 04:29:15 04:29:59 181585V Lothringer 5V-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5V 01 03 BQ 2026.152 04:29:59 04:30:43 181585V Lothringer 5V-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5V 01 04 BR 2026.152 04:30:43 04:31:27 181585V Lothringer 5V-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5V 01 05 BS 2026.152 04:31:27 04:32:11 181585V Lothringer 5V-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5V 01 06 BT 2026.152 04:32:11 04:32:59 181585V Lothringer 5V-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5V 01 07 BU 2026.152 04:35:52 04:36:36 181585V Lothringer 5V-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5V 01 08 BW 2026.152 04:36:36 04:37:20 181585V Lothringer 5V-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5V 01 09 BX 2026.152 04:37:20 04:38:04 181585V Lothringer 5V-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5V 01 0A BY 2026.152 04:38:04 04:38:48 181585V Lothringer 5V-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5V 01 0B BZ 2026.152 04:38:48 04:39:32 181585V Lothringer 5V-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5V 01 0C C0 2026.152 04:39:32 04:40:16 181585V Lothringer 5V-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5V 01 0D C1 2026.152 04:40:16 04:41:04 181585V Lothringer 5V-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5V 01 0E C2 2026.152 04:43:57 04:44:41 181585V Lothringer 5V-002 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5V 01 0F C4 2026.152 04:44:41 04:45:25 181585V Lothringer 5V-002 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5V 01 0G C5 2026.152 04:45:25 04:46:09 181585V Lothringer 5V-002 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5V 01 0H C6 2026.152 04:46:09 04:46:56 181585V Lothringer 5V-003 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5V 01 0I C7 2026.152 04:46:56 04:47:43 181585V Lothringer 5V-003 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5V 01 0J C8 2026.152 04:47:43 04:48:30 181585V Lothringer 5V-004 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5V 01 0K C9 2026.152 04:48:30 04:55:23 181585V Lothringer 5V-004 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5V 01 0L CA 2026.152 05:45:31 05:57:40 1805103 Hack 03-001 V-HM-SGE WFC3/UVI ACCUM UVIS2-C1K1C- F373N 600.00 03 01 01 CK 2026.152 05:57:40 06:09:17 1805103 Hack 03-001 V-HM-SGE WFC3/UVI ACCUM UVIS2-C1K1C- F373N 600.00 03 02 01 CO 2026.152 06:09:17 06:11:31 1805103 Hack 03-002 V-HM-SGE WFC3/UVI ACCUM UVIS2-C1K1C- F763M 10.00 03 03 01 CP 2026.152 06:25:52 06:28:03 1805103 Hack 03-002 V-HM-SGE WFC3/UVI ACCUM UVIS2-C1K1C- F763M 10.00 03 07 01 CU 2026.152 07:29:27 07:31:38 1805103 Hack 03-002 V-HM-SGE WFC3/UVI ACCUM UVIS2-C1K1C- F763M 10.00 03 0B 01 CY 2026.152 07:45:59 07:48:10 1805103 Hack 03-002 V-HM-SGE WFC3/UVI ACCUM UVIS2-C1K1C- F763M 10.00 03 0F 01 D2 2026.152 06:11:31 06:14:14 1805103 Hack 03-003 V-HM-SGE WFC3/UVI ACCUM UVIS2-C1K1C- F336W 30.00 03 04 01 CQ 2026.152 06:28:03 07:17:49 1805103 Hack 03-003 V-HM-SGE WFC3/UVI ACCUM UVIS2-C1K1C- F336W 30.00 03 08 01 CV 2026.152 07:31:38 07:34:21 1805103 Hack 03-003 V-HM-SGE WFC3/UVI ACCUM UVIS2-C1K1C- F336W 30.00 03 0C 01 CZ 2026.152 07:48:10 07:50:53 1805103 Hack 03-003 V-HM-SGE WFC3/UVI ACCUM UVIS2-C1K1C- F336W 30.00 03 0G 01 D3 2026.152 06:14:14 06:19:18 1805103 Hack 03-004 V-HM-SGE WFC3/UVI ACCUM UVIS2-C1K1C- F275W 180.00 03 05 01 CR 2026.152 07:17:49 07:22:53 1805103 Hack 03-004 V-HM-SGE WFC3/UVI ACCUM UVIS2-C1K1C- F275W 180.00 03 09 01 CW 2026.152 07:34:21 07:39:25 1805103 Hack 03-004 V-HM-SGE WFC3/UVI ACCUM UVIS2-C1K1C- F275W 180.00 03 0D 01 D0 2026.152 07:50:53 07:55:57 1805103 Hack 03-004 V-HM-SGE WFC3/UVI ACCUM UVIS2-C1K1C- F275W 180.00 03 0H 01 D4 2026.152 06:19:18 06:25:52 1805103 Hack 03-005 V-HM-SGE WFC3/UVI ACCUM UVIS2-C1K1C- F658N 280.00 03 06 01 CT 2026.152 07:22:53 07:29:27 1805103 Hack 03-005 V-HM-SGE WFC3/UVI ACCUM UVIS2-C1K1C- F658N 280.00 03 0A 01 CX 2026.152 07:39:25 07:45:59 1805103 Hack 03-005 V-HM-SGE WFC3/UVI ACCUM UVIS2-C1K1C- F658N 280.00 03 0E 01 D1 2026.152 07:55:57 08:02:33 1805103 Hack 03-005 V-HM-SGE WFC3/UVI ACCUM UVIS2-C1K1C- F658N 280.00 03 0I 01 D5 2026.152 05:53:27 06:12:31 18155BQ Dallas BQ-001 DARK STIS/CCD ACCUM F28X50LP MIRVIS 1100.00 BQ 01 01 CL 2026.152 06:12:31 06:14:15 18155BQ Dallas BQ-002 DARK STIS/CCD ACCUM F28X50LP MIRVIS 60.00 BQ 01 02 CM 28-May-2026 21:36:04 --- HST Observing Timeline Report for SMS: 261517A5 --- Page 3 SMS Start: 2026.151:23:40:00 (31-MAY-2026 23:40:00), End: 2026.158:17:50:00 (07-JUN-2026 17:50:00) Observation Set Principal Science Spectral Exposure Begin UT End UT SU Id Investigat Exp # Target Instrume Mode Apertures Elements Time(sec) OB AL EX O# -------- -------- -------- ------- ---------- ------ ---------- -------- ------ ------------ ------------ --------- -- -- -- -- 2026.152 06:14:15 06:16:03 18155BQ Dallas BQ-003 DARK STIS/CCD ACCUM F28X50LP MIRVIS 60.00 BQ 01 03 CN 2026.152 08:04:29 08:09:44 1820217 Dos Santos 17-001 WAVE COS/NUV TIME-T WCA G230L 60.00 17 01 01 D7 2026.152 08:11:08 08:30:37 1820217 Dos Santos 17-002 WAVE COS/FUV TIME-T WCA G130M 2400.00 17 03 01 D9 2026.152 08:55:33 08:59:59 1820217 Dos Santos 17-003 WAVE COS/NUV TIME-T WCA G230L 60.00 17 05 01 DB 2026.152 09:01:23 09:20:49 1820217 Dos Santos 17-004 WAVE COS/FUV TIME-T WCA G130M 2400.00 17 07 01 DD 2026.152 09:45:45 09:50:09 1820217 Dos Santos 17-005 WAVE COS/NUV TIME-T WCA G230L 60.00 17 09 01 DK 2026.152 09:51:33 10:11:02 1820217 Dos Santos 17-006 WAVE COS/FUV TIME-T WCA G130M 2400.00 17 0B 01 DM 2026.152 09:09:42 09:20:43 1787502 McDonald 02-001 SPT-CLJ2223-5015 WFC3/IR MULTIA IR F110W 599.33 02 01 01 DF 2026.152 09:20:43 09:22:59 1787502 McDonald 02-001 SPT-CLJ2223-5015 WFC3/IR MULTIA IR F110W 599.33 02 02 01 DG 2026.152 09:31:44 09:42:45 1787502 McDonald 02-001 SPT-CLJ2223-5015 WFC3/IR MULTIA IR F110W 599.33 02 03 01 DI 2026.152 09:42:45 09:54:03 1787502 McDonald 02-001 SPT-CLJ2223-5015 WFC3/IR MULTIA IR F110W 599.33 02 04 01 DJ 2026.152 10:45:19 10:46:24 15601AP Sahnow AP-001 DARK S/C DATA NONE 90.00 AP 01 01 DQ 2026.152 11:39:15 11:50:58 1781806 Morgan 06-001 SDSS-J133907.13+131039.6 WFC3/UVI ACCUM UVIS2-C1K1C- F275W 540.00 06 01 01 DR 2026.152 11:50:58 11:51:06 1781806 Morgan 06-001 SDSS-J133907.13+131039.6 WFC3/UVI ACCUM UVIS2-C1K1C- F275W 540.00 06 02 01 DS 2026.152 12:02:09 12:02:17 1781806 Morgan 06-001 SDSS-J133907.13+131039.6 WFC3/UVI ACCUM UVIS2-C1K1C- F275W 540.00 06 03 01 DU 2026.152 12:13:20 12:24:33 1781806 Morgan 06-001 SDSS-J133907.13+131039.6 WFC3/UVI ACCUM UVIS2-C1K1C- F275W 540.00 06 04 01 DW 2026.152 13:25:52 13:31:24 1805002 Bish 02-001 GALEX-J173107.5+322809 COS/NUV ACQ/IM PSA MIRRORB 4.00 02 01 01 DY 2026.152 13:32:22 13:52:53 1805002 Bish 02-002 GALEX-J173107.5+322809 COS/FUV TIME-T PSA G160M 1002.00 02 03 01 E0 2026.152 13:53:39 14:11:30 1805002 Bish 02-003 GALEX-J173107.5+322809 COS/FUV TIME-T PSA G160M 1002.00 02 05 01 E2 2026.152 15:00:59 15:21:17 1805002 Bish 02-004 GALEX-J173107.5+322809 COS/FUV TIME-T PSA G160M 1149.00 02 07 01 E4 2026.152 15:22:12 15:42:30 1805002 Bish 02-005 GALEX-J173107.5+322809 COS/FUV TIME-T PSA G160M 1149.00 02 09 01 E6 2026.152 16:48:55 16:59:11 180611Q Jones 1Q-001 DW1908M6343 ACS/WFC ACCUM WFC F606W 372.00 1Q 01 01 E8 CLEAR2L 2026.152 16:59:11 16:59:21 180611Q Jones 1Q-001 DW1908M6343 ACS/WFC ACCUM WFC F606W 372.00 1Q 02 01 E9 CLEAR2L 2026.152 17:08:05 17:09:10 180611Q Jones 1Q-002 DW1908M6343 ACS/WFC ACCUM WFC CLEAR1L 502.00 1Q 03 01 EB F814W 2026.152 17:20:04 17:20:14 180611Q Jones 1Q-002 DW1908M6343 ACS/WFC ACCUM WFC CLEAR1L 502.00 1Q 04 01 ED F814W 2026.152 18:32:30 18:54:54 1800901 Marques-Ch 01-001 J0006+2452 ACS/WFC ACCUM WFC1-IRAMP CLEAR1L 1099.00 01 01 01 EG FR423N 2026.152 18:54:54 18:55:06 1800901 Marques-Ch 01-001 J0006+2452 ACS/WFC ACCUM WFC1-IRAMP CLEAR1L 1092.00 01 02 01 EH FR423N 2026.152 20:04:50 20:05:02 1800901 Marques-Ch 01-001 J0006+2452 ACS/WFC ACCUM WFC1-IRAMP CLEAR1L 1136.00 01 03 01 EM FR423N 2026.152 20:26:29 20:26:41 1800901 Marques-Ch 01-001 J0006+2452 ACS/WFC ACCUM WFC1-IRAMP CLEAR1L 1136.00 01 04 01 EQ FR423N 2026.152 21:38:49 21:39:01 1800901 Marques-Ch 01-001 J0006+2452 ACS/WFC ACCUM WFC1-IRAMP CLEAR1L 900.00 01 05 01 EU FR423N 2026.152 21:56:32 21:56:44 1800901 Marques-Ch 01-001 J0006+2452 ACS/WFC ACCUM WFC1-IRAMP CLEAR1L 1393.00 01 06 01 EW FR423N 2026.152 19:38:53 19:56:03 1794968 Rivera 68-001 DARK WFC3/UVI ACCUM UVIS 900.00 68 01 01 EJ 2026.152 20:01:53 20:19:03 1794969 Rivera 69-001 DARK WFC3/UVI ACCUM UVIS 900.00 69 01 01 EL 2026.152 20:24:53 20:42:03 1794970 Rivera 70-001 DARK WFC3/UVI ACCUM UVIS 900.00 70 01 01 EP 2026.152 20:47:53 22:10:59 1795616 Green 16-001 DARK S/C DATA NONE 1800.00 16 01 01 28-May-2026 21:36:04 --- HST Observing Timeline Report for SMS: 261517A5 --- Page 4 SMS Start: 2026.151:23:40:00 (31-MAY-2026 23:40:00), End: 2026.158:17:50:00 (07-JUN-2026 17:50:00) Observation Set Principal Science Spectral Exposure Begin UT End UT SU Id Investigat Exp # Target Instrume Mode Apertures Elements Time(sec) OB AL EX O# -------- -------- -------- ------- ---------- ------ ---------- -------- ------ ------------ ------------ --------- -- -- -- -- 2026.152 21:17:53 22:05:20 1795616 Green 16-002 DARK WFC3/IR MULTIA IR BLANK 2803.06 16 02 01 ET 2026.152 22:11:01 22:24:23 1795809 Huynh 09-001 DARK-NM WFC3/IR MULTIA IR BLANK 83.01 09 01 01 EZ 2026.152 22:24:23 22:25:58 1795809 Huynh 09-002 TUNGSTEN WFC3/IR MULTIA IR F126N 52.99 09 02 01 F1 2026.152 22:25:58 22:27:57 1795809 Huynh 09-003 TUNGSTEN WFC3/IR MULTIA IR F126N 603.04 09 02 02 F2 2026.152 22:51:14 23:07:46 1795809 Huynh 09-004 DARK WFC3/IR MULTIA IR BLANK 353.06 09 03 01 F4 2026.152 23:01:10 23:06:50 1812061 Yamaguchi 61-001 GAIA6881 COS/NUV ACQ/IM PSA MIRRORB 7.90 61 01 01 F5 2026.152 23:07:44 23:17:59 1812061 Yamaguchi 61-002 GAIA6881 COS/FUV TIME-T PSA G140L 415.00 61 03 01 F8 2026.152 23:18:35 23:26:39 1812061 Yamaguchi 61-002 GAIA6881 COS/FUV TIME-T PSA G140L 415.00 61 05 01 FB 2026.152 23:27:15 23:35:19 1812061 Yamaguchi 61-002 GAIA6881 COS/FUV TIME-T PSA G140L 415.00 61 07 01 FG 2026.152 23:35:55 23:43:59 1812061 Yamaguchi 61-002 GAIA6881 COS/FUV TIME-T PSA G140L 415.00 61 09 01 FI 2026.152 23:16:37 23:23:43 1795811 Huynh 11-001 DARK-NM WFC3/IR MULTIA IR BLANK 83.01 11 01 01 F9 2026.152 23:23:43 23:25:18 1795811 Huynh 11-002 TUNGSTEN WFC3/IR MULTIA IR F126N 52.99 11 02 01 FC 2026.152 23:25:18 23:27:17 1795811 Huynh 11-003 TUNGSTEN WFC3/IR MULTIA IR F126N 603.04 11 02 02 FD 2026.152 23:36:37 23:44:37 1795811 Huynh 11-004 DARK WFC3/IR MULTIA IR BLANK 353.06 11 03 01 FJ 2026.152 23:52:25 00:16:02 18171P1 Brown P1-001 DARK STIS/MA2 TIME-T F28X50LP MIRVIS 1300.00 P1 01 01 FM 2026.153 00:00:00 00:02:24 179470Z Pidgeon 0Z-001 DARK WFC3/UVI ACCUM UVIS 0.50 0Z 01 01 FN 2026.153 00:00:00 00:39:56 179470Z Pidgeon 0Z-002 DARK S/C DATA NONE 4.00 0Z 02 01 2026.153 00:02:24 00:04:44 179470Z Pidgeon 0Z-003 DARK WFC3/UVI ACCUM UVIS 0.50 0Z 03 01 FO 2026.153 00:04:44 00:04:52 179470Z Pidgeon 0Z-004 DARK WFC3/UVI ACCUM UVIS 900.00 0Z 04 01 FP 2026.153 00:24:34 00:29:40 1806504 Harper 04-001 1-ALF-HER STIS/CCD ACQ F25ND5 MIRVIS 0.20 04 01 01 FS 2026.153 00:32:42 00:33:10 1806504 Harper 04-002 1-ALF-HER STIS/MA2 ACCUM S200X200 E230M 2076.00 04 02 02 FU 2026.153 00:29:40 00:32:42 1806504 Harper 04-002 WAVELINE STIS/MA2 ACCUM S200X200 E230M 0.00 04 02 01 FT 2026.153 01:58:01 02:41:15 1806504 Harper 04-003 1-ALF-HER STIS/MA2 ACCUM S200X200 E230M 2564.00 04 04 01 GF 2026.153 02:41:15 02:42:40 1806504 Harper 04-003 WAVELINE STIS/MA2 ACCUM S200X200 E230M 0.00 04 04 02 GG 2026.153 03:32:04 04:15:18 1806504 Harper 04-004 1-ALF-HER STIS/MA2 ACCUM S200X200 E230M 2564.00 04 06 01 GO 2026.153 04:15:18 04:16:43 1806504 Harper 04-004 WAVELINE STIS/MA2 ACCUM S200X200 E230M 0.00 04 06 02 GP 2026.153 00:39:58 00:57:49 179471A Pidgeon 1A-001 DARK-NM WFC3/UVI ACCUM UVIS F410M 900.00 1A 01 01 FX 2026.153 00:57:49 01:15:10 179471A Pidgeon 1A-001 DARK-NM WFC3/UVI ACCUM UVIS F410M 900.00 1A 02 01 FY 2026.153 01:27:12 01:29:38 1796929 Kuhn 29-001 TUNGSTEN WFC3/UVI ACCUM UVIS1-M512-S F645N 60.00 29 01 01 G1 2026.153 01:29:38 01:32:17 1796929 Kuhn 29-002 TUNGSTEN WFC3/UVI ACCUM UVIS F814W 2.00 29 01 02 G2 2026.153 01:32:17 01:32:51 1796929 Kuhn 29-003 TUNGSTEN WFC3/UVI ACCUM UVIS F438W 360.00 29 01 03 G3 2026.153 01:40:51 01:40:59 1796929 Kuhn 29-004 TUNGSTEN WFC3/UVI ACCUM UVIS F438W 360.00 29 01 04 G5 2026.153 01:48:59 01:49:07 1796929 Kuhn 29-005 TUNGSTEN WFC3/UVI ACCUM UVIS F438W 360.00 29 01 05 G7 2026.153 01:57:07 01:57:15 1796929 Kuhn 29-006 TUNGSTEN WFC3/UVI ACCUM UVIS F438W 360.00 29 01 06 G9 2026.153 02:05:15 02:07:47 1796929 Kuhn 29-007 TUNGSTEN WFC3/UVI ACCUM UVIS F814W 2.00 29 01 07 GB 2026.153 02:18:53 02:21:03 1796929 Kuhn 29-008 TUNGSTEN WFC3/UVI ACCUM UVIS F814W 2.00 29 01 08 GD 2026.153 02:21:03 02:23:30 1796929 Kuhn 29-009 TUNGSTEN WFC3/UVI ACCUM UVIS F814W 2.00 29 01 09 GE 2026.153 03:11:01 03:14:03 1795810 Huynh 10-001 DARK-NM WFC3/IR MULTIA IR BLANK 83.01 10 01 01 GJ 2026.153 03:14:03 03:15:38 1795810 Huynh 10-002 TUNGSTEN WFC3/IR MULTIA IR F126N 52.99 10 02 01 GK 2026.153 03:15:38 03:17:37 1795810 Huynh 10-003 TUNGSTEN WFC3/IR MULTIA IR F126N 603.04 10 02 02 GL 2026.153 03:26:57 03:33:34 1795810 Huynh 10-004 DARK WFC3/IR MULTIA IR BLANK 353.06 10 03 01 GN 2026.153 04:23:13 04:42:17 18155BR Dallas BR-001 DARK STIS/CCD ACCUM F28X50LP MIRVIS 1100.00 BR 01 01 GS 2026.153 04:42:17 04:44:01 18155BR Dallas BR-002 DARK STIS/CCD ACCUM F28X50LP MIRVIS 60.00 BR 01 02 GT 2026.153 04:44:01 04:45:49 18155BR Dallas BR-003 DARK STIS/CCD ACCUM F28X50LP MIRVIS 60.00 BR 01 03 GU 2026.153 04:51:45 05:10:49 18155BS Dallas BS-001 DARK STIS/CCD ACCUM F28X50LP MIRVIS 1100.00 BS 01 01 GW 28-May-2026 21:36:05 --- HST Observing Timeline Report for SMS: 261517A5 --- Page 5 SMS Start: 2026.151:23:40:00 (31-MAY-2026 23:40:00), End: 2026.158:17:50:00 (07-JUN-2026 17:50:00) Observation Set Principal Science Spectral Exposure Begin UT End UT SU Id Investigat Exp # Target Instrume Mode Apertures Elements Time(sec) OB AL EX O# -------- -------- -------- ------- ---------- ------ ---------- -------- ------ ------------ ------------ --------- -- -- -- -- 2026.153 05:10:49 05:12:33 18155BS Dallas BS-002 DARK STIS/CCD ACCUM F28X50LP MIRVIS 60.00 BS 01 02 GX 2026.153 05:12:33 05:14:21 18155BS Dallas BS-003 DARK STIS/CCD ACCUM F28X50LP MIRVIS 60.00 BS 01 03 GY 2026.153 05:20:17 05:21:01 181585W Lothringer 5W-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5W 01 01 H0 2026.153 05:21:01 05:21:45 181585W Lothringer 5W-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5W 01 02 H1 2026.153 05:21:45 05:22:29 181585W Lothringer 5W-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5W 01 03 H2 2026.153 05:22:29 05:23:13 181585W Lothringer 5W-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5W 01 04 H3 2026.153 05:23:13 05:23:57 181585W Lothringer 5W-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5W 01 05 H4 2026.153 05:23:57 05:24:41 181585W Lothringer 5W-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5W 01 06 H5 2026.153 05:24:41 05:25:29 181585W Lothringer 5W-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5W 01 07 H6 2026.153 05:28:22 05:29:06 181585W Lothringer 5W-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5W 01 08 H8 2026.153 05:29:06 05:29:50 181585W Lothringer 5W-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5W 01 09 H9 2026.153 05:29:50 05:30:34 181585W Lothringer 5W-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5W 01 0A HA 2026.153 05:30:34 05:31:18 181585W Lothringer 5W-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5W 01 0B HB 2026.153 05:31:18 05:32:02 181585W Lothringer 5W-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5W 01 0C HC 2026.153 05:32:02 05:32:46 181585W Lothringer 5W-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5W 01 0D HD 2026.153 05:32:46 05:33:34 181585W Lothringer 5W-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5W 01 0E HE 2026.153 05:36:27 05:37:11 181585W Lothringer 5W-002 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5W 01 0F HG 2026.153 05:37:11 05:37:55 181585W Lothringer 5W-002 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5W 01 0G HH 2026.153 05:37:55 05:38:39 181585W Lothringer 5W-002 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5W 01 0H HI 2026.153 05:38:39 05:39:26 181585W Lothringer 5W-003 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5W 01 0I HJ 2026.153 05:39:26 05:40:13 181585W Lothringer 5W-003 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5W 01 0J HK 2026.153 05:40:13 05:41:00 181585W Lothringer 5W-004 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5W 01 0K HL 2026.153 05:41:00 05:41:51 181585W Lothringer 5W-004 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5W 01 0L HM 2026.153 05:47:10 05:51:32 1823103 Som 03-001 WD0308-565 COS/NUV ACQ/IM BOA MIRRORA 11.00 03 01 01 HO 2026.153 05:52:30 05:56:25 1823103 Som 03-002 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 03 03 01 HR 2026.153 05:57:01 05:58:24 1823103 Som 03-003 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 03 05 01 HT 2026.153 05:59:00 06:00:23 1823103 Som 03-004 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 03 07 01 HV 2026.153 06:00:59 06:02:22 1823103 Som 03-005 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 03 09 01 HX 2026.153 06:02:58 06:04:21 1823103 Som 03-006 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 03 0B 01 HZ 2026.153 06:04:57 06:06:20 1823103 Som 03-007 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 03 0D 01 I1 2026.153 06:06:56 06:08:19 1823103 Som 03-008 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 03 0F 01 I3 2026.153 06:08:55 06:10:18 1823103 Som 03-009 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 03 0H 01 I5 2026.153 06:10:54 06:12:17 1823103 Som 03-010 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 03 0J 01 I7 2026.153 06:12:53 06:14:16 1823103 Som 03-011 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 03 0L 01 I9 2026.153 06:14:52 06:16:15 1823103 Som 03-012 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 03 0N 01 IB 2026.153 06:16:51 06:18:14 1823103 Som 03-013 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 03 0P 01 ID 2026.153 06:18:50 06:20:13 1823103 Som 03-014 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 03 0R 01 IF 2026.153 06:20:49 06:22:12 1823103 Som 03-015 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 03 0T 01 IH 2026.153 06:22:48 06:24:11 1823103 Som 03-016 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 03 0V 01 IJ 2026.153 06:24:47 06:26:10 1823103 Som 03-017 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 03 0X 01 IL 2026.153 06:26:46 06:28:09 1823103 Som 03-018 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 03 0Z 01 IN 2026.153 06:28:45 06:30:08 1823103 Som 03-019 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 03 11 01 IP 2026.153 06:30:44 06:32:07 1823103 Som 03-020 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 03 13 01 IR 2026.153 05:49:22 06:32:47 18171P2 Brown P2-001 DARK STIS/MA2 TIME-T F28X50LP MIRVIS 1300.00 P2 01 01 HP 2026.153 07:17:21 07:26:01 1772448 Mo 48-001 47TUC WFC3/UVI ACCUM UVIS F300X 350.00 48 01 01 IU 28-May-2026 21:36:05 --- HST Observing Timeline Report for SMS: 261517A5 --- Page 6 SMS Start: 2026.151:23:40:00 (31-MAY-2026 23:40:00), End: 2026.158:17:50:00 (07-JUN-2026 17:50:00) Observation Set Principal Science Spectral Exposure Begin UT End UT SU Id Investigat Exp # Target Instrume Mode Apertures Elements Time(sec) OB AL EX O# -------- -------- -------- ------- ---------- ------ ---------- -------- ------ ------------ ------------ --------- -- -- -- -- 2026.153 07:34:09 07:34:17 1772448 Mo 48-001 47TUC WFC3/UVI ACCUM UVIS F300X 350.00 48 03 01 IX 2026.153 07:50:25 07:50:33 1772448 Mo 48-001 47TUC WFC3/UVI ACCUM UVIS F300X 350.00 48 05 01 J1 2026.153 07:26:01 07:26:09 1772448 Mo 48-001 47TUC WFC3/UVI ACCUM UVIS F300X 350.00 48 02 01 IV 2026.153 07:42:17 07:42:25 1772448 Mo 48-001 47TUC WFC3/UVI ACCUM UVIS F300X 350.00 48 04 01 IZ 2026.153 07:58:33 08:06:43 1772448 Mo 48-001 47TUC WFC3/UVI ACCUM UVIS F300X 350.00 48 06 01 J3 2026.153 08:18:12 08:21:14 179721B Kuhn 1B-001 DARK-EARTH-CALIB WFC3/IR MULTIA IR F153M 102.97 1B 01 01 J5 2026.153 09:24:44 09:29:10 1806302 Sahu 02-001 V839-ARA STIS/CCD ACQ A50 MIRVIS 1.00 02 01 01 J7 2026.153 09:29:45 09:39:45 1806302 Sahu 02-002 V839-ARA STIS/MA2 TIME-T SL100 G230L 2224.00 02 03 01 J9 2026.153 10:12:06 10:13:35 1806302 Sahu 02-003 WAVEHITM STIS/MA2 ACCUM SL100 G230L 0.00 02 05 01 JB 2026.153 11:08:13 11:11:47 1811612 Wang 12-001 VIIIZW218 WFC3/IR MULTIA IRSUB512 F160W 174.37 12 01 01 JD 2026.153 11:18:33 11:22:07 1811612 Wang 12-001 VIIIZW218 WFC3/IR MULTIA IRSUB512 F160W 174.37 12 02 01 JH 2026.153 11:28:53 11:29:29 1811612 Wang 12-001 VIIIZW218 WFC3/IR MULTIA IRSUB512 F160W 174.37 12 03 01 JL 2026.153 11:39:13 11:42:47 1811612 Wang 12-001 VIIIZW218 WFC3/IR MULTIA IRSUB512 F160W 174.37 12 04 01 JQ 2026.153 11:11:47 11:15:00 1811612 Wang 12-001 VIIIZW218 WFC3/IR MULTIA IRSUB512 F160W 174.37 12 01 02 JE 2026.153 11:22:07 11:22:22 1811612 Wang 12-001 VIIIZW218 WFC3/IR MULTIA IRSUB512 F160W 174.37 12 02 02 JI 2026.153 11:32:27 11:35:40 1811612 Wang 12-001 VIIIZW218 WFC3/IR MULTIA IRSUB512 F160W 174.37 12 03 02 JN 2026.153 11:42:47 11:46:00 1811612 Wang 12-001 VIIIZW218 WFC3/IR MULTIA IRSUB512 F160W 174.37 12 04 02 JR 2026.153 11:15:00 11:15:14 1811612 Wang 12-001 VIIIZW218 WFC3/IR MULTIA IRSUB512 F160W 174.37 12 01 03 JF 2026.153 11:25:20 11:28:53 1811612 Wang 12-001 VIIIZW218 WFC3/IR MULTIA IRSUB512 F160W 174.37 12 02 03 JK 2026.153 11:35:40 11:35:55 1811612 Wang 12-001 VIIIZW218 WFC3/IR MULTIA IRSUB512 F160W 174.37 12 03 03 JO 2026.153 11:46:00 12:42:29 1811612 Wang 12-001 VIIIZW218 WFC3/IR MULTIA IRSUB512 F160W 174.37 12 04 03 JS 2026.153 12:42:29 12:43:09 1811612 Wang 12-002 VIIIZW218 WFC3/UVI ACCUM UVIS1-2K2A-S F621M 290.00 12 05 01 JT 2026.153 12:54:31 12:54:39 1811612 Wang 12-002 VIIIZW218 WFC3/UVI ACCUM UVIS1-2K2A-S F621M 290.00 12 07 01 JW 2026.153 13:06:01 13:13:59 1811612 Wang 12-002 VIIIZW218 WFC3/UVI ACCUM UVIS1-2K2A-S F621M 290.00 12 09 01 JZ 2026.153 13:17:31 13:25:29 1811612 Wang 12-002 VIIIZW218 WFC3/UVI ACCUM UVIS1-2K2A-S F621M 290.00 12 0B 01 K1 2026.153 12:50:59 12:54:31 1811612 Wang 12-003 VIIIZW218 WFC3/UVI ACCUM UVIS1-2K2A-S F621M 20.00 12 06 01 JV 2026.153 13:02:29 13:06:01 1811612 Wang 12-003 VIIIZW218 WFC3/UVI ACCUM UVIS1-2K2A-S F621M 20.00 12 08 01 JY 2026.153 13:13:59 13:17:31 1811612 Wang 12-003 VIIIZW218 WFC3/UVI ACCUM UVIS1-2K2A-S F621M 20.00 12 0A 01 K0 2026.153 13:25:29 13:29:03 1811612 Wang 12-003 VIIIZW218 WFC3/UVI ACCUM UVIS1-2K2A-S F621M 20.00 12 0C 01 K2 2026.153 14:21:32 14:29:41 180370A Do 0A-001 SDSSJ142251.54+341217.97 WFC3/UVI ACCUM UVIS2-C512C- F547M 400.00 0A 01 01 K4 2026.153 14:34:11 14:41:56 180370A Do 0A-001 SDSSJ142251.54+341217.97 WFC3/UVI ACCUM UVIS2-C512C- F547M 400.00 0A 03 01 K6 2026.153 14:46:26 14:54:11 180370A Do 0A-001 SDSSJ142251.54+341217.97 WFC3/UVI ACCUM UVIS2-C512C- F547M 400.00 0A 05 01 K8 2026.153 14:29:41 14:34:11 180370A Do 0A-002 SDSSJ142251.54+341217.97 WFC3/UVI ACCUM UVIS2-C512C- F621M 200.00 0A 02 01 K5 2026.153 14:41:56 14:46:26 180370A Do 0A-002 SDSSJ142251.54+341217.97 WFC3/UVI ACCUM UVIS2-C512C- F621M 200.00 0A 04 01 K7 2026.153 14:54:11 14:58:43 180370A Do 0A-002 SDSSJ142251.54+341217.97 WFC3/UVI ACCUM UVIS2-C512C- F621M 200.00 0A 06 01 K9 2026.153 16:00:16 16:09:19 1801085 Proudfoot 85-001 2015KH162 WFC3/UVI ACCUM UVIS2 F350LP 350.00 85 01 02 KB 2026.153 16:09:19 16:09:27 1801085 Proudfoot 85-001 2015KH162 WFC3/UVI ACCUM UVIS2 F350LP 350.00 85 02 02 KC 2026.153 16:17:50 16:17:58 1801085 Proudfoot 85-001 2015KH162 WFC3/UVI ACCUM UVIS2 F350LP 350.00 85 03 02 KE 2026.153 16:26:21 16:34:21 1801085 Proudfoot 85-001 2015KH162 WFC3/UVI ACCUM UVIS2 F350LP 350.00 85 04 02 KG 2026.153 16:45:31 16:48:33 1795812 Huynh 12-001 DARK-NM WFC3/IR MULTIA IR BLANK 83.01 12 01 01 KI 2026.153 16:48:33 16:50:08 1795812 Huynh 12-002 TUNGSTEN WFC3/IR MULTIA IR F126N 52.99 12 02 01 KJ 2026.153 16:50:08 16:52:07 1795812 Huynh 12-003 TUNGSTEN WFC3/IR MULTIA IR F126N 603.04 12 02 02 KK 2026.153 17:29:27 17:36:04 1795812 Huynh 12-004 DARK WFC3/IR MULTIA IR BLANK 353.06 12 03 01 KM 2026.153 17:44:55 17:47:57 1795813 Huynh 13-001 DARK-NM WFC3/IR MULTIA IR BLANK 83.01 13 01 01 KO 2026.153 17:47:57 17:49:32 1795813 Huynh 13-002 TUNGSTEN WFC3/IR MULTIA IR F126N 52.99 13 02 01 KP 28-May-2026 21:36:05 --- HST Observing Timeline Report for SMS: 261517A5 --- Page 7 SMS Start: 2026.151:23:40:00 (31-MAY-2026 23:40:00), End: 2026.158:17:50:00 (07-JUN-2026 17:50:00) Observation Set Principal Science Spectral Exposure Begin UT End UT SU Id Investigat Exp # Target Instrume Mode Apertures Elements Time(sec) OB AL EX O# -------- -------- -------- ------- ---------- ------ ---------- -------- ------ ------------ ------------ --------- -- -- -- -- 2026.153 17:49:32 17:51:31 1795813 Huynh 13-003 TUNGSTEN WFC3/IR MULTIA IR F126N 603.04 13 02 02 KQ 2026.153 18:00:51 18:41:20 1795813 Huynh 13-004 DARK WFC3/IR MULTIA IR BLANK 353.06 13 03 01 KT 2026.153 17:53:42 18:03:57 180611V Jones 1V-001 DW1909M6341 ACS/WFC ACCUM WFC1 F606W 375.00 1V 01 01 KS CLEAR2L 2026.153 18:03:57 18:04:07 180611V Jones 1V-001 DW1909M6341 ACS/WFC ACCUM WFC1 F606W 375.00 1V 02 01 KU CLEAR2L 2026.153 18:12:50 18:13:55 180611V Jones 1V-002 DW1909M6341 ACS/WFC ACCUM WFC1 CLEAR1L 505.00 1V 03 01 KW F814W 2026.153 18:24:48 18:24:58 180611V Jones 1V-002 DW1909M6341 ACS/WFC ACCUM WFC1 CLEAR1L 505.00 1V 04 01 KY F814W 2026.153 19:07:17 19:11:08 1795029 Pidgeon 29-001 DARK WFC3/UVI ACCUM UVIS 0.50 29 01 01 L2 2026.153 19:11:08 19:12:44 1795029 Pidgeon 29-002 DARK WFC3/UVI ACCUM UVIS2-C1K1C- 0.50 29 02 01 L3 2026.153 19:07:17 19:30:33 1795029 Pidgeon 29-003 DARK S/C DATA NONE 4.00 29 04 01 2026.153 19:18:57 19:22:48 1795029 Pidgeon 29-004 DARK WFC3/UVI ACCUM UVIS 0.50 29 05 01 L5 2026.153 19:22:48 19:24:24 1795029 Pidgeon 29-005 DARK WFC3/UVI ACCUM UVIS2-C1K1C- 0.50 29 06 01 L6 2026.153 19:32:55 19:55:24 1806807 Kallivayal 07-001 PEGASUS-III ACS/WFC ACCUM WFC CLEAR1L 1109.00 07 01 01 L8 F814W 2026.153 19:32:55 19:55:24 1806807 Kallivayal 07-002 ANY WFC3/UVI ACCUM UVIS F814W 1126.00 07 01 02 L9 2026.153 19:55:24 19:55:34 1806807 Kallivayal 07-003 PEGASUS-III ACS/WFC ACCUM WFC CLEAR1L 1110.00 07 02 01 LA F814W 2026.153 19:55:24 21:05:42 1806807 Kallivayal 07-004 ANY WFC3/UVI ACCUM UVIS F814W 1126.00 07 02 02 LB 2026.153 21:05:42 21:05:52 1806807 Kallivayal 07-005 PEGASUS-III ACS/WFC ACCUM WFC CLEAR1L 1110.00 07 03 01 LD F814W 2026.153 21:05:42 21:11:39 1806807 Kallivayal 07-006 ANY WFC3/UVI ACCUM UVIS F814W 1126.00 07 03 02 LE 2026.153 21:26:50 21:27:00 1806807 Kallivayal 07-007 PEGASUS-III ACS/WFC ACCUM WFC CLEAR1L 1110.00 07 04 01 LH F814W 2026.153 21:26:50 22:39:42 1806807 Kallivayal 07-008 ANY WFC3/UVI ACCUM UVIS F814W 1126.00 07 04 02 LI 2026.153 22:39:42 22:39:52 1806807 Kallivayal 07-009 PEGASUS-III ACS/WFC ACCUM WFC CLEAR1L 1110.00 07 05 01 LK F814W 2026.153 22:39:42 22:45:39 1806807 Kallivayal 07-010 ANY WFC3/UVI ACCUM UVIS F814W 1126.00 07 05 02 LL 2026.153 23:00:50 23:01:00 1806807 Kallivayal 07-011 PEGASUS-III ACS/WFC ACCUM WFC CLEAR1L 1110.00 07 06 01 LO F814W 2026.153 23:00:50 00:13:42 1806807 Kallivayal 07-012 ANY WFC3/UVI ACCUM UVIS F814W 1126.00 07 06 02 LP 2026.154 00:13:42 00:13:52 1806807 Kallivayal 07-013 PEGASUS-III ACS/WFC ACCUM WFC CLEAR1L 1110.00 07 07 01 LU F814W 2026.154 00:13:42 00:19:39 1806807 Kallivayal 07-014 ANY WFC3/UVI ACCUM UVIS F814W 1126.00 07 07 02 LV 2026.154 00:34:50 00:35:00 1806807 Kallivayal 07-015 PEGASUS-III ACS/WFC ACCUM WFC CLEAR1L 1110.00 07 08 01 LZ F814W 2026.154 00:34:50 00:55:46 1806807 Kallivayal 07-016 ANY WFC3/UVI ACCUM UVIS F814W 1126.00 07 08 02 M0 2026.154 00:00:00 00:19:04 18155BT Dallas BT-001 DARK STIS/CCD ACCUM F28X50LP MIRVIS 1100.00 BT 01 01 LR 2026.154 00:19:04 00:20:48 18155BT Dallas BT-002 DARK STIS/CCD ACCUM F28X50LP MIRVIS 60.00 BT 01 02 LS 2026.154 00:20:48 00:30:49 18155BT Dallas BT-003 DARK STIS/CCD ACCUM F28X50LP MIRVIS 60.00 BT 01 03 LT 2026.154 00:36:45 00:55:49 18155BU Dallas BU-001 DARK STIS/CCD ACCUM F28X50LP MIRVIS 1100.00 BU 01 01 M2 2026.154 00:55:49 00:57:33 18155BU Dallas BU-002 DARK STIS/CCD ACCUM F28X50LP MIRVIS 60.00 BU 01 02 M3 2026.154 00:57:33 01:12:43 18155BU Dallas BU-003 DARK STIS/CCD ACCUM F28X50LP MIRVIS 60.00 BU 01 03 M4 28-May-2026 21:36:05 --- HST Observing Timeline Report for SMS: 261517A5 --- Page 8 SMS Start: 2026.151:23:40:00 (31-MAY-2026 23:40:00), End: 2026.158:17:50:00 (07-JUN-2026 17:50:00) Observation Set Principal Science Spectral Exposure Begin UT End UT SU Id Investigat Exp # Target Instrume Mode Apertures Elements Time(sec) OB AL EX O# -------- -------- -------- ------- ---------- ------ ---------- -------- ------ ------------ ------------ --------- -- -- -- -- 2026.154 01:12:39 01:14:10 1795030 Pidgeon 30-001 DARK WFC3/UVI ACCUM UVIS2-C1K1C- 0.50 30 01 01 M7 2026.154 01:14:10 01:15:42 1795030 Pidgeon 30-002 DARK WFC3/UVI ACCUM UVIS2-C1K1C- 0.50 30 02 01 ME 2026.154 01:15:42 01:17:15 1795030 Pidgeon 30-003 DARK WFC3/UVI ACCUM UVIS2-C1K1C- 0.50 30 03 01 MF 2026.154 01:17:15 01:18:49 1795030 Pidgeon 30-004 DARK WFC3/UVI ACCUM UVIS2-C1K1C- 0.50 30 04 01 MG 2026.154 01:18:49 01:20:25 1795030 Pidgeon 30-005 DARK WFC3/UVI ACCUM UVIS2-C1K1C- 0.50 30 05 01 MH 2026.154 01:20:25 01:22:03 1795030 Pidgeon 30-006 DARK WFC3/UVI ACCUM UVIS2-C1K1C- 0.50 30 06 01 MI 2026.154 01:22:03 01:23:46 1795030 Pidgeon 30-007 DARK WFC3/UVI ACCUM UVIS2-C1K1C- 0.50 30 07 01 MJ 2026.154 01:12:39 01:41:53 1795030 Pidgeon 30-008 DARK S/C DATA NONE 4.00 30 08 01 2026.154 01:23:46 01:25:17 1795030 Pidgeon 30-009 DARK WFC3/UVI ACCUM UVIS2-C1K1C- 0.50 30 09 01 MK 2026.154 01:25:17 01:26:49 1795030 Pidgeon 30-010 DARK WFC3/UVI ACCUM UVIS2-C1K1C- 0.50 30 0A 01 ML 2026.154 01:26:49 01:28:22 1795030 Pidgeon 30-011 DARK WFC3/UVI ACCUM UVIS2-C1K1C- 0.50 30 0B 01 MM 2026.154 01:28:22 01:29:56 1795030 Pidgeon 30-012 DARK WFC3/UVI ACCUM UVIS2-C1K1C- 0.50 30 0C 01 MN 2026.154 01:29:56 01:31:32 1795030 Pidgeon 30-013 DARK WFC3/UVI ACCUM UVIS2-C1K1C- 0.50 30 0D 01 MO 2026.154 01:31:32 01:33:10 1795030 Pidgeon 30-014 DARK WFC3/UVI ACCUM UVIS2-C1K1C- 0.50 30 0E 01 MP 2026.154 01:33:10 01:36:46 1795030 Pidgeon 30-015 DARK WFC3/UVI ACCUM UVIS2-C1K1C- 0.50 30 0F 01 MQ 2026.154 01:12:59 01:17:23 17978AQ Guzman AQ-001 BIAS ACS/WFC ACCUM WFC F502N 0.00 AQ 01 01 M9 F660N 2026.154 01:17:23 01:17:38 17978AQ Guzman AQ-002 DARK ACS/WFC ACCUM WFC F502N 650.50 AQ 01 02 MA F660N 2026.154 01:30:44 01:30:59 17978AQ Guzman AQ-003 DARK ACS/WFC ACCUM WFC F502N 650.50 AQ 01 03 MC F660N 2026.154 01:52:00 01:56:06 1761203 Sing 03-001 HATS-72 WFC3/UVI ACCUM G280-REF F300X 157.00 03 01 01 MY 2026.154 01:56:06 02:00:06 1761203 Sing 03-002 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 01 02 MZ 2026.154 02:00:06 02:03:58 1761203 Sing 03-002 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 01 03 N0 2026.154 02:03:58 02:07:50 1761203 Sing 03-002 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 01 04 N1 2026.154 02:07:50 02:11:42 1761203 Sing 03-002 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 01 05 N2 2026.154 02:11:42 02:15:34 1761203 Sing 03-002 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 01 06 N3 2026.154 02:15:34 02:19:26 1761203 Sing 03-002 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 01 07 N4 2026.154 02:19:26 02:23:18 1761203 Sing 03-002 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 01 08 N5 2026.154 02:23:18 02:27:10 1761203 Sing 03-002 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 01 09 N6 2026.154 02:27:10 02:31:02 1761203 Sing 03-002 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 01 0A N7 2026.154 02:31:02 03:24:27 1761203 Sing 03-002 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 01 0B N8 2026.154 03:24:27 03:28:19 1761203 Sing 03-003 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 02 01 NY 2026.154 03:28:19 03:32:11 1761203 Sing 03-003 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 02 02 NZ 2026.154 03:32:11 03:36:03 1761203 Sing 03-003 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 02 03 O0 2026.154 03:36:03 03:39:55 1761203 Sing 03-003 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 02 04 O1 2026.154 03:39:55 03:43:47 1761203 Sing 03-003 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 02 05 O2 2026.154 03:43:47 03:47:39 1761203 Sing 03-003 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 02 06 O3 2026.154 03:47:39 03:51:31 1761203 Sing 03-003 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 02 07 O4 2026.154 03:51:31 03:55:23 1761203 Sing 03-003 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 02 08 O5 2026.154 03:55:23 03:59:15 1761203 Sing 03-003 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 02 09 O6 2026.154 03:59:15 04:03:07 1761203 Sing 03-003 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 02 0A O7 2026.154 04:03:07 04:58:27 1761203 Sing 03-003 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 02 0B O8 2026.154 04:58:27 05:02:19 1761203 Sing 03-004 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 03 01 O9 2026.154 05:02:19 05:06:11 1761203 Sing 03-004 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 03 02 OA 28-May-2026 21:36:05 --- HST Observing Timeline Report for SMS: 261517A5 --- Page 9 SMS Start: 2026.151:23:40:00 (31-MAY-2026 23:40:00), End: 2026.158:17:50:00 (07-JUN-2026 17:50:00) Observation Set Principal Science Spectral Exposure Begin UT End UT SU Id Investigat Exp # Target Instrume Mode Apertures Elements Time(sec) OB AL EX O# -------- -------- -------- ------- ---------- ------ ---------- -------- ------ ------------ ------------ --------- -- -- -- -- 2026.154 05:06:11 05:10:03 1761203 Sing 03-004 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 03 03 OB 2026.154 05:10:03 05:13:55 1761203 Sing 03-004 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 03 04 OC 2026.154 05:13:55 05:17:47 1761203 Sing 03-004 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 03 05 OD 2026.154 05:17:47 05:21:39 1761203 Sing 03-004 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 03 06 OE 2026.154 05:21:39 05:25:31 1761203 Sing 03-004 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 03 07 OF 2026.154 05:25:31 05:29:23 1761203 Sing 03-004 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 03 08 OG 2026.154 05:29:23 05:33:15 1761203 Sing 03-004 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 03 09 OH 2026.154 05:33:15 05:37:07 1761203 Sing 03-004 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 03 0A OI 2026.154 05:37:07 06:32:28 1761203 Sing 03-004 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 03 0B OJ 2026.154 06:32:28 06:36:20 1761203 Sing 03-005 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 04 01 OK 2026.154 06:36:20 06:40:12 1761203 Sing 03-005 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 04 02 OL 2026.154 06:40:12 06:44:04 1761203 Sing 03-005 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 04 03 OM 2026.154 06:44:04 06:47:56 1761203 Sing 03-005 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 04 04 ON 2026.154 06:47:56 06:51:48 1761203 Sing 03-005 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 04 05 OO 2026.154 06:51:48 06:55:40 1761203 Sing 03-005 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 04 06 OP 2026.154 06:55:40 06:59:32 1761203 Sing 03-005 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 04 07 OQ 2026.154 06:59:32 07:03:24 1761203 Sing 03-005 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 04 08 OR 2026.154 07:03:24 07:07:16 1761203 Sing 03-005 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 04 09 OS 2026.154 07:07:16 07:11:08 1761203 Sing 03-005 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 04 0A OT 2026.154 07:11:08 07:15:21 1761203 Sing 03-005 HATS-72 WFC3/UVI ACCUM UVIS G280 175.00 03 04 0B OU 2026.154 07:15:21 07:16:06 1761203 Sing 03-006 BIAS WFC3/UVI ACCUM UVIS G280 0.00 03 05 01 OV 2026.154 07:16:06 07:16:51 1761203 Sing 03-006 BIAS WFC3/UVI ACCUM UVIS G280 0.00 03 05 02 OW 2026.154 07:16:51 07:17:36 1761203 Sing 03-006 BIAS WFC3/UVI ACCUM UVIS G280 0.00 03 05 03 OX 2026.154 07:17:36 07:18:23 1761203 Sing 03-006 BIAS WFC3/UVI ACCUM UVIS G280 0.00 03 05 04 OY 2026.154 01:49:52 01:54:28 17978AR Guzman AR-001 DARK ACS/WFC ACCUM WFC F502N 0.50 AR 01 01 MT F660N 2026.154 01:54:28 01:54:43 17978AR Guzman AR-002 DARK ACS/WFC ACCUM WFC F502N 650.50 AR 01 02 MU F660N 2026.154 02:07:49 02:08:04 17978AR Guzman AR-003 DARK ACS/WFC ACCUM WFC F502N 650.50 AR 01 03 MW F660N 2026.154 02:21:49 02:22:33 181585X Lothringer 5X-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5X 01 01 NA 2026.154 02:22:33 02:23:17 181585X Lothringer 5X-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5X 01 02 NB 2026.154 02:23:17 02:24:01 181585X Lothringer 5X-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5X 01 03 NC 2026.154 02:24:01 02:24:45 181585X Lothringer 5X-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5X 01 04 ND 2026.154 02:24:45 02:25:29 181585X Lothringer 5X-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5X 01 05 NE 2026.154 02:25:29 02:26:13 181585X Lothringer 5X-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5X 01 06 NF 2026.154 02:26:13 02:27:01 181585X Lothringer 5X-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5X 01 07 NG 2026.154 02:29:54 02:30:38 181585X Lothringer 5X-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5X 01 08 NI 2026.154 02:30:38 02:31:22 181585X Lothringer 5X-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5X 01 09 NJ 2026.154 02:31:22 02:32:06 181585X Lothringer 5X-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5X 01 0A NK 2026.154 02:32:06 02:32:50 181585X Lothringer 5X-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5X 01 0B NL 2026.154 02:32:50 02:33:34 181585X Lothringer 5X-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5X 01 0C NM 2026.154 02:33:34 02:34:18 181585X Lothringer 5X-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5X 01 0D NN 2026.154 02:34:18 02:35:06 181585X Lothringer 5X-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5X 01 0E NO 2026.154 02:37:59 02:38:43 181585X Lothringer 5X-002 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5X 01 0F NQ 28-May-2026 21:36:06 --- HST Observing Timeline Report for SMS: 261517A5 --- Page 10 SMS Start: 2026.151:23:40:00 (31-MAY-2026 23:40:00), End: 2026.158:17:50:00 (07-JUN-2026 17:50:00) Observation Set Principal Science Spectral Exposure Begin UT End UT SU Id Investigat Exp # Target Instrume Mode Apertures Elements Time(sec) OB AL EX O# -------- -------- -------- ------- ---------- ------ ---------- -------- ------ ------------ ------------ --------- -- -- -- -- 2026.154 02:38:43 02:39:27 181585X Lothringer 5X-002 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5X 01 0G NR 2026.154 02:39:27 02:40:11 181585X Lothringer 5X-002 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5X 01 0H NS 2026.154 02:40:11 02:40:58 181585X Lothringer 5X-003 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5X 01 0I NT 2026.154 02:40:58 02:41:45 181585X Lothringer 5X-003 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5X 01 0J NU 2026.154 02:41:45 02:42:32 181585X Lothringer 5X-004 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5X 01 0K NV 2026.154 02:42:32 02:43:23 181585X Lothringer 5X-004 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5X 01 0L NW 2026.154 07:26:39 07:44:30 179471B Pidgeon 1B-001 DARK-NM WFC3/UVI ACCUM UVIS F631N 900.00 1B 01 01 P0 2026.154 07:44:30 08:01:51 179471B Pidgeon 1B-001 DARK-NM WFC3/UVI ACCUM UVIS F631N 900.00 1B 02 01 P1 2026.154 08:12:57 08:30:48 179471C Pidgeon 1C-001 DARK-NM WFC3/UVI ACCUM UVIS F487N 900.00 1C 01 01 P3 2026.154 08:30:48 09:09:41 179471C Pidgeon 1C-001 DARK-NM WFC3/UVI ACCUM UVIS F487N 900.00 1C 02 01 P7 2026.154 08:24:38 08:29:00 1824602 Som 02-001 WD0308-565 COS/NUV ACQ/IM BOA MIRRORA 11.00 02 01 01 P4 2026.154 08:29:58 08:33:21 1824602 Som 02-002 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 02 03 01 P6 2026.154 08:33:57 08:35:20 1824602 Som 02-003 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 02 05 01 P9 2026.154 08:35:56 08:37:19 1824602 Som 02-004 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 02 07 01 PB 2026.154 08:37:55 08:39:18 1824602 Som 02-005 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 02 09 01 PD 2026.154 08:39:54 08:41:17 1824602 Som 02-006 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 02 0B 01 PF 2026.154 08:41:53 08:43:16 1824602 Som 02-007 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 02 0D 01 PH 2026.154 08:43:52 08:45:15 1824602 Som 02-008 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 02 0F 01 PJ 2026.154 08:45:51 08:47:14 1824602 Som 02-009 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 02 0H 01 PL 2026.154 08:47:50 08:49:13 1824602 Som 02-010 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 02 0J 01 PN 2026.154 08:49:49 08:51:12 1824602 Som 02-011 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 02 0L 01 PP 2026.154 08:51:48 08:53:11 1824602 Som 02-012 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 02 0N 01 PR 2026.154 08:53:47 08:55:10 1824602 Som 02-013 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 02 0P 01 PT 2026.154 08:55:46 08:57:09 1824602 Som 02-014 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 02 0R 01 PV 2026.154 08:57:45 08:59:08 1824602 Som 02-015 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 02 0T 01 PX 2026.154 08:59:44 09:01:07 1824602 Som 02-016 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 02 0V 01 PZ 2026.154 09:01:43 09:03:06 1824602 Som 02-017 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 02 0X 01 Q1 2026.154 09:03:42 09:05:05 1824602 Som 02-018 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 02 0Z 01 Q3 2026.154 09:05:41 09:07:04 1824602 Som 02-019 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 02 11 01 Q5 2026.154 09:07:40 09:09:03 1824602 Som 02-020 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 02 13 01 Q7 2026.154 09:21:08 09:24:59 1795028 Pidgeon 28-001 DARK WFC3/UVI ACCUM UVIS 0.50 28 01 01 QA 2026.154 09:24:59 09:26:35 1795028 Pidgeon 28-002 DARK WFC3/UVI ACCUM UVIS2-C1K1C- 0.50 28 02 01 QB 2026.154 09:21:08 09:44:24 1795028 Pidgeon 28-003 DARK S/C DATA NONE 4.00 28 04 01 2026.154 09:32:48 09:36:39 1795028 Pidgeon 28-004 DARK WFC3/UVI ACCUM UVIS 0.50 28 05 01 QD 2026.154 09:36:39 09:38:15 1795028 Pidgeon 28-005 DARK WFC3/UVI ACCUM UVIS2-C1K1C- 0.50 28 06 01 QE 2026.154 09:48:38 09:54:00 1777697 Terry 97-001 GBTDS-HD57 ACS/WFC ACCUM WFCENTER CLEAR1L 50.00 97 01 01 QG F814W 2026.154 09:48:38 09:54:00 1777697 Terry 97-002 ANY WFC3/UVI ACCUM UVIS-CENTER F814W 100.00 97 01 02 QH 2026.154 09:54:00 09:54:10 1777697 Terry 97-003 GBTDS-HD57 ACS/WFC ACCUM WFCENTER CLEAR1L 340.00 97 02 01 QI F814W 2026.154 09:54:00 10:02:00 1777697 Terry 97-004 ANY WFC3/UVI ACCUM UVIS-CENTER F814W 340.00 97 02 02 QJ 2026.154 11:01:28 11:02:33 1777697 Terry 97-005 GBTDS-HD57 ACS/WFC ACCUM WFCENTER F606W 340.00 97 04 01 QM CLEAR2L 2026.154 11:01:28 11:11:08 1777697 Terry 97-006 ANY WFC3/UVI ACCUM UVIS-CENTER F606W 375.00 97 04 02 QN 28-May-2026 21:36:06 --- HST Observing Timeline Report for SMS: 261517A5 --- Page 11 SMS Start: 2026.151:23:40:00 (31-MAY-2026 23:40:00), End: 2026.158:17:50:00 (07-JUN-2026 17:50:00) Observation Set Principal Science Spectral Exposure Begin UT End UT SU Id Investigat Exp # Target Instrume Mode Apertures Elements Time(sec) OB AL EX O# -------- -------- -------- ------- ---------- ------ ---------- -------- ------ ------------ ------------ --------- -- -- -- -- 2026.154 11:11:08 11:11:18 1777697 Terry 97-007 GBTDS-HD57 ACS/WFC ACCUM WFCENTER F606W 340.00 97 05 01 QP CLEAR2L 2026.154 11:11:08 11:19:08 1777697 Terry 97-008 ANY WFC3/UVI ACCUM UVIS-CENTER F606W 330.00 97 05 02 QQ 2026.154 11:36:01 12:02:18 1795814 Huynh 14-001 DARK-NM WFC3/IR MULTIA IR BLANK 83.01 14 01 01 QU 2026.154 12:02:18 12:03:53 1795814 Huynh 14-002 TUNGSTEN WFC3/IR MULTIA IR F126N 52.99 14 02 01 QV 2026.154 12:03:53 12:05:52 1795814 Huynh 14-003 TUNGSTEN WFC3/IR MULTIA IR F126N 603.04 14 02 02 QW 2026.154 12:15:12 12:21:49 1795814 Huynh 14-004 DARK WFC3/IR MULTIA IR BLANK 353.06 14 03 01 QY 2026.154 12:39:56 12:45:18 1777696 Terry 96-001 GBTDS-HD56 ACS/WFC ACCUM WFCENTER CLEAR1L 50.00 96 01 01 R0 F814W 2026.154 12:39:56 12:45:18 1777696 Terry 96-002 ANY WFC3/UVI ACCUM UVIS-CENTER F814W 100.00 96 01 02 R1 2026.154 12:45:18 12:45:28 1777696 Terry 96-003 GBTDS-HD56 ACS/WFC ACCUM WFCENTER CLEAR1L 340.00 96 02 01 R2 F814W 2026.154 12:45:18 12:53:18 1777696 Terry 96-004 ANY WFC3/UVI ACCUM UVIS-CENTER F814W 340.00 96 02 02 R3 2026.154 13:04:24 13:05:29 1777696 Terry 96-005 GBTDS-HD56 ACS/WFC ACCUM WFCENTER F606W 340.00 96 04 01 R6 CLEAR2L 2026.154 13:04:24 14:10:35 1777696 Terry 96-006 ANY WFC3/UVI ACCUM UVIS-CENTER F606W 375.00 96 04 02 R7 2026.154 14:10:35 14:10:45 1777696 Terry 96-007 GBTDS-HD56 ACS/WFC ACCUM WFCENTER F606W 340.00 96 05 01 R9 CLEAR2L 2026.154 14:10:35 14:18:35 1777696 Terry 96-008 ANY WFC3/UVI ACCUM UVIS-CENTER F606W 330.00 96 05 02 RA 2026.154 14:35:28 14:38:30 1795815 Huynh 15-001 DARK-NM WFC3/IR MULTIA IR BLANK 83.01 15 01 01 RE 2026.154 14:38:30 14:40:05 1795815 Huynh 15-002 TUNGSTEN WFC3/IR MULTIA IR F126N 52.99 15 02 01 RF 2026.154 14:40:05 14:42:04 1795815 Huynh 15-003 TUNGSTEN WFC3/IR MULTIA IR F126N 603.04 15 02 02 RG 2026.154 15:19:36 15:26:13 1795815 Huynh 15-004 DARK WFC3/IR MULTIA IR BLANK 353.06 15 03 01 RI 2026.154 15:49:24 16:12:37 1806201 Jones 01-001 PAVO ACS/WFC ACCUM WFC1 F606W 1153.00 01 01 01 RK CLEAR2L 2026.154 15:49:24 16:12:37 1806201 Jones 01-002 ANY WFC3/UVI ACCUM UVIS F606W 1213.00 01 01 02 RL 2026.154 16:12:37 16:12:47 1806201 Jones 01-003 PAVO ACS/WFC ACCUM WFC1 F606W 1153.00 01 02 01 RM CLEAR2L 2026.154 16:12:37 16:34:10 1806201 Jones 01-004 ANY WFC3/UVI ACCUM UVIS F606W 1163.00 01 02 02 RN 2026.154 17:03:37 17:06:03 1795110 Huynh 10-001 TUNGSTEN WFC3/UVI ACCUM UVIS1-M512-S F645N 60.00 10 01 01 RR 2026.154 17:06:03 17:07:24 1795110 Huynh 10-002 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 6.00 10 01 02 RS 2026.154 17:07:24 17:08:45 1795110 Huynh 10-002 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 6.00 10 01 03 RT 2026.154 17:08:45 17:10:17 1795110 Huynh 10-003 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 17.00 10 01 04 RU 2026.154 17:10:17 17:11:49 1795110 Huynh 10-003 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 17.00 10 01 05 RV 2026.154 17:11:49 17:13:05 1795110 Huynh 10-004 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 0.50 10 01 06 RW 2026.154 17:13:05 17:14:21 1795110 Huynh 10-004 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 0.50 10 01 07 RX 2026.154 17:14:21 17:16:06 1795110 Huynh 10-005 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 30.00 10 01 08 RY 2026.154 17:16:06 17:18:08 1795110 Huynh 10-005 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 30.00 10 01 09 RZ 2026.154 17:26:55 17:37:10 180611U Jones 1U-001 DW1903M6405 ACS/WFC ACCUM WFC2 F606W 375.00 1U 01 01 S1 CLEAR2L 2026.154 17:37:10 17:37:20 180611U Jones 1U-001 DW1903M6405 ACS/WFC ACCUM WFC2 F606W 375.00 1U 02 01 SB CLEAR2L 2026.154 17:46:03 17:47:08 180611U Jones 1U-002 DW1903M6405 ACS/WFC ACCUM WFC2 CLEAR1L 505.00 1U 03 01 SD F814W 28-May-2026 21:36:06 --- HST Observing Timeline Report for SMS: 261517A5 --- Page 12 SMS Start: 2026.151:23:40:00 (31-MAY-2026 23:40:00), End: 2026.158:17:50:00 (07-JUN-2026 17:50:00) Observation Set Principal Science Spectral Exposure Begin UT End UT SU Id Investigat Exp # Target Instrume Mode Apertures Elements Time(sec) OB AL EX O# -------- -------- -------- ------- ---------- ------ ---------- -------- ------ ------------ ------------ --------- -- -- -- -- 2026.154 17:58:01 17:58:11 180611U Jones 1U-002 DW1903M6405 ACS/WFC ACCUM WFC2 CLEAR1L 505.00 1U 04 01 SF F814W 2026.154 17:30:13 17:32:39 1795111 Huynh 11-001 TUNGSTEN WFC3/UVI ACCUM UVIS1-M512-S F645N 60.00 11 01 01 S2 2026.154 17:32:39 17:34:05 1795111 Huynh 11-002 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 11.00 11 01 02 S3 2026.154 17:34:05 17:35:31 1795111 Huynh 11-002 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 11.00 11 01 03 S4 2026.154 17:35:31 17:36:47 1795111 Huynh 11-003 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 1.00 11 01 04 S5 2026.154 17:36:47 17:38:03 1795111 Huynh 11-003 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 1.00 11 01 05 S6 2026.154 17:38:03 17:39:20 1795111 Huynh 11-004 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 2.00 11 01 06 S7 2026.154 17:39:20 17:40:37 1795111 Huynh 11-004 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 2.00 11 01 07 S8 2026.154 17:40:37 17:42:16 1795111 Huynh 11-005 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 24.00 11 01 08 S9 2026.154 17:42:16 18:14:29 1795111 Huynh 11-005 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 24.00 11 01 09 SA 2026.154 18:35:40 18:38:06 1795113 Huynh 13-001 TUNGSTEN WFC3/UVI ACCUM UVIS1-M512-S F645N 60.00 13 01 01 SJ 2026.154 18:38:06 18:41:59 1795113 Huynh 13-002 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 105.00 13 01 02 SK 2026.154 18:41:59 18:46:09 1795113 Huynh 13-002 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 105.00 13 01 03 SL 2026.154 18:58:14 19:21:27 1806202 Jones 02-001 PAVO ACS/WFC ACCUM WFC1 F606W 1153.00 02 01 01 SN CLEAR2L 2026.154 18:58:14 19:21:27 1806202 Jones 02-002 ANY WFC3/UVI ACCUM UVIS F606W 1213.00 02 01 02 SO 2026.154 19:21:27 19:21:37 1806202 Jones 02-003 PAVO ACS/WFC ACCUM WFC1 F606W 1153.00 02 02 01 SP CLEAR2L 2026.154 19:21:27 19:43:00 1806202 Jones 02-004 ANY WFC3/UVI ACCUM UVIS F606W 1163.00 02 02 02 SQ 2026.154 20:18:34 20:21:00 1795112 Huynh 12-001 TUNGSTEN WFC3/UVI ACCUM UVIS1-M512-S F645N 60.00 12 01 01 SU 2026.154 20:21:00 20:21:51 1795112 Huynh 12-002 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 5.00 12 01 02 SV 2026.154 20:21:51 20:22:42 1795112 Huynh 12-002 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 5.00 12 01 03 SW 2026.154 20:22:42 20:23:29 1795112 Huynh 12-003 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 1.00 12 01 04 SX 2026.154 20:23:29 20:24:16 1795112 Huynh 12-003 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 1.00 12 01 05 SY 2026.154 20:24:16 20:25:09 1795112 Huynh 12-004 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 7.00 12 01 06 SZ 2026.154 20:25:09 20:26:02 1795112 Huynh 12-004 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 7.00 12 01 07 T0 2026.154 20:26:02 20:26:51 1795112 Huynh 12-005 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 3.00 12 01 08 T1 2026.154 20:26:51 20:27:40 1795112 Huynh 12-005 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 3.00 12 01 09 T2 2026.154 20:27:40 20:28:27 1795112 Huynh 12-006 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 0.50 12 01 0A T3 2026.154 20:28:27 20:29:14 1795112 Huynh 12-006 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 0.50 12 01 0B T4 2026.154 20:29:14 20:30:09 1795112 Huynh 12-007 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 9.00 12 01 0C T5 2026.154 20:30:09 20:31:04 1795112 Huynh 12-007 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 9.00 12 01 0D T6 2026.154 20:31:04 20:31:52 1795112 Huynh 12-008 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 2.00 12 01 0E T7 2026.154 20:31:52 20:32:40 1795112 Huynh 12-008 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 2.00 12 01 0F T8 2026.154 20:32:40 20:33:37 1795112 Huynh 12-009 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 11.00 12 01 0G T9 2026.154 20:33:37 20:34:34 1795112 Huynh 12-009 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 11.00 12 01 0H TA 2026.154 20:34:34 20:35:33 1795112 Huynh 12-010 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 13.00 12 01 0I TB 2026.154 20:35:33 20:36:49 1795112 Huynh 12-010 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 13.00 12 01 0J TC 2026.154 20:50:17 20:57:08 1806903 Pierel 03-001 SN-R4 WFC3/IR MULTIA IR F160W 349.33 03 01 01 TE 2026.154 20:57:08 20:57:51 1806903 Pierel 03-002 SN-R4 WFC3/IR MULTIA IR F160W 349.33 03 02 01 TF 2026.154 21:03:59 21:05:00 1806903 Pierel 03-003 SN-R4 WFC3/IR MULTIA IR F110W 399.34 03 03 01 TH 2026.154 21:11:40 21:12:41 1806903 Pierel 03-004 SN-R4 WFC3/IR MULTIA IR F110W 349.33 03 04 01 TJ 2026.154 21:18:31 21:19:57 1806903 Pierel 03-005 SN-R4 WFC3/IR MULTIA IR F110W 399.34 03 05 01 TL 2026.154 21:26:12 22:22:40 1806903 Pierel 03-006 SN-R4 WFC3/IR MULTIA IR F160W 399.34 03 06 01 TN 28-May-2026 21:36:06 --- HST Observing Timeline Report for SMS: 261517A5 --- Page 13 SMS Start: 2026.151:23:40:00 (31-MAY-2026 23:40:00), End: 2026.158:17:50:00 (07-JUN-2026 17:50:00) Observation Set Principal Science Spectral Exposure Begin UT End UT SU Id Investigat Exp # Target Instrume Mode Apertures Elements Time(sec) OB AL EX O# -------- -------- -------- ------- ---------- ------ ---------- -------- ------ ------------ ------------ --------- -- -- -- -- 2026.154 22:22:40 22:26:40 1806903 Pierel 03-007 SN-R4 WFC3/IR MULTIA IR F160W 803.01 03 07 01 TO 2026.154 22:37:05 22:51:30 1806903 Pierel 03-007 SN-R4 WFC3/IR MULTIA IR F160W 803.01 03 08 01 TQ 2026.154 22:51:30 23:06:12 1806903 Pierel 03-007 SN-R4 WFC3/IR MULTIA IR F160W 803.01 03 09 01 TR 2026.154 23:15:58 23:18:24 1795114 Huynh 14-001 TUNGSTEN WFC3/UVI ACCUM UVIS1-M512-S F645N 60.00 14 01 01 TT 2026.154 23:18:24 23:21:52 1795114 Huynh 14-002 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 80.00 14 01 02 TU 2026.154 23:21:52 23:25:37 1795114 Huynh 14-002 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 80.00 14 01 03 TV 2026.154 23:42:13 00:05:26 1806203 Jones 03-001 PAVO ACS/WFC ACCUM WFC1 F606W 1153.00 03 01 01 TX CLEAR2L 2026.154 23:42:13 00:05:26 1806203 Jones 03-002 ANY WFC3/UVI ACCUM UVIS F606W 1213.00 03 01 02 TY 2026.155 00:05:26 00:05:36 1806203 Jones 03-003 PAVO ACS/WFC ACCUM WFC1 F606W 1153.00 03 02 01 U2 CLEAR2L 2026.155 00:05:26 00:26:59 1806203 Jones 03-004 ANY WFC3/UVI ACCUM UVIS F606W 1163.00 03 02 02 U3 2026.155 00:00:00 00:19:04 18155BV Dallas BV-001 DARK STIS/CCD ACCUM F28X50LP MIRVIS 1100.00 BV 01 01 TZ 2026.155 00:19:04 00:20:48 18155BV Dallas BV-002 DARK STIS/CCD ACCUM F28X50LP MIRVIS 60.00 BV 01 02 U0 2026.155 00:20:48 00:22:36 18155BV Dallas BV-003 DARK STIS/CCD ACCUM F28X50LP MIRVIS 60.00 BV 01 03 U1 2026.155 00:28:32 00:47:36 18155BW Dallas BW-001 DARK STIS/CCD ACCUM F28X50LP MIRVIS 1100.00 BW 01 01 U7 2026.155 00:47:36 00:49:20 18155BW Dallas BW-002 DARK STIS/CCD ACCUM F28X50LP MIRVIS 60.00 BW 01 02 U8 2026.155 00:49:20 00:52:45 18155BW Dallas BW-003 DARK STIS/CCD ACCUM F28X50LP MIRVIS 60.00 BW 01 03 U9 2026.155 00:43:52 00:45:11 1794578 Pidgeon 78-001 TUNGSTEN WFC3/UVI ACCUM UVIS F475X 1.00 78 01 01 UB 2026.155 00:45:11 00:49:17 1794578 Pidgeon 78-002 TUNGSTEN WFC3/UVI ACCUM UVIS F475X 200.00 78 01 02 UC 2026.155 00:49:17 00:50:21 1794578 Pidgeon 78-003 TUNGSTEN WFC3/UVI ACCUM UVIS F475X 1.00 78 01 03 UD 2026.155 01:03:55 01:09:17 1777693 Terry 93-001 GBTDS-HD51 ACS/WFC ACCUM WFCENTER CLEAR1L 50.00 93 01 01 UG F814W 2026.155 01:03:55 01:09:17 1777693 Terry 93-002 ANY WFC3/UVI ACCUM UVIS-CENTER F814W 100.00 93 01 02 UH 2026.155 01:09:17 01:09:27 1777693 Terry 93-003 GBTDS-HD51 ACS/WFC ACCUM WFCENTER CLEAR1L 340.00 93 02 01 UI F814W 2026.155 01:09:17 01:17:17 1777693 Terry 93-004 ANY WFC3/UVI ACCUM UVIS-CENTER F814W 340.00 93 02 02 UJ 2026.155 01:28:23 01:29:28 1777693 Terry 93-005 GBTDS-HD51 ACS/WFC ACCUM WFCENTER F606W 340.00 93 04 01 UM CLEAR2L 2026.155 01:28:23 01:38:03 1777693 Terry 93-006 ANY WFC3/UVI ACCUM UVIS-CENTER F606W 375.00 93 04 02 UN 2026.155 01:38:03 01:38:13 1777693 Terry 93-007 GBTDS-HD51 ACS/WFC ACCUM WFCENTER F606W 340.00 93 05 01 UP CLEAR2L 2026.155 01:38:03 01:46:03 1777693 Terry 93-008 ANY WFC3/UVI ACCUM UVIS-CENTER F606W 330.00 93 05 02 UQ 2026.155 01:57:48 01:58:32 181585Y Lothringer 5Y-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Y 01 01 UU 2026.155 01:58:32 01:59:16 181585Y Lothringer 5Y-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Y 01 02 UV 2026.155 01:59:16 02:00:00 181585Y Lothringer 5Y-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Y 01 03 UW 2026.155 02:00:00 02:00:44 181585Y Lothringer 5Y-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Y 01 04 UX 2026.155 02:00:44 02:01:28 181585Y Lothringer 5Y-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Y 01 05 UY 2026.155 02:01:28 02:02:12 181585Y Lothringer 5Y-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Y 01 06 UZ 2026.155 02:02:12 02:03:00 181585Y Lothringer 5Y-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Y 01 07 V0 2026.155 02:05:53 02:06:37 181585Y Lothringer 5Y-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Y 01 08 V2 2026.155 02:06:37 02:07:21 181585Y Lothringer 5Y-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Y 01 09 V3 2026.155 02:07:21 02:08:05 181585Y Lothringer 5Y-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Y 01 0A V4 2026.155 02:08:05 02:08:49 181585Y Lothringer 5Y-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Y 01 0B V5 2026.155 02:08:49 02:09:33 181585Y Lothringer 5Y-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Y 01 0C V6 28-May-2026 21:36:06 --- HST Observing Timeline Report for SMS: 261517A5 --- Page 14 SMS Start: 2026.151:23:40:00 (31-MAY-2026 23:40:00), End: 2026.158:17:50:00 (07-JUN-2026 17:50:00) Observation Set Principal Science Spectral Exposure Begin UT End UT SU Id Investigat Exp # Target Instrume Mode Apertures Elements Time(sec) OB AL EX O# -------- -------- -------- ------- ---------- ------ ---------- -------- ------ ------------ ------------ --------- -- -- -- -- 2026.155 02:09:33 02:10:17 181585Y Lothringer 5Y-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Y 01 0D V7 2026.155 02:10:17 02:11:05 181585Y Lothringer 5Y-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Y 01 0E V8 2026.155 02:13:58 02:14:42 181585Y Lothringer 5Y-002 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Y 01 0F VA 2026.155 02:14:42 02:15:26 181585Y Lothringer 5Y-002 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Y 01 0G VB 2026.155 02:15:26 02:16:10 181585Y Lothringer 5Y-002 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Y 01 0H VC 2026.155 02:16:10 02:16:57 181585Y Lothringer 5Y-003 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Y 01 0I VD 2026.155 02:16:57 02:17:44 181585Y Lothringer 5Y-003 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Y 01 0J VE 2026.155 02:17:44 02:18:31 181585Y Lothringer 5Y-004 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Y 01 0K VF 2026.155 02:18:31 02:19:22 181585Y Lothringer 5Y-004 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Y 01 0L VG 2026.155 02:02:56 02:20:47 179471D Pidgeon 1D-001 DARK-NM WFC3/UVI ACCUM UVIS F502N 900.00 1D 01 01 VH 2026.155 02:20:47 02:38:08 179471D Pidgeon 1D-001 DARK-NM WFC3/UVI ACCUM UVIS F502N 900.00 1D 02 01 VJ 2026.155 02:51:03 03:14:16 1806204 Jones 04-001 PAVO ACS/WFC ACCUM WFC1 F606W 1153.00 04 01 01 VL CLEAR2L 2026.155 02:51:03 03:14:16 1806204 Jones 04-002 ANY WFC3/UVI ACCUM UVIS F606W 1213.00 04 01 02 VM 2026.155 03:14:16 03:14:26 1806204 Jones 04-003 PAVO ACS/WFC ACCUM WFC1 F606W 1153.00 04 02 01 VN CLEAR2L 2026.155 03:14:16 03:35:49 1806204 Jones 04-004 ANY WFC3/UVI ACCUM UVIS F606W 1163.00 04 02 02 VO 2026.155 04:11:57 04:17:19 1777694 Terry 94-001 GBTDS-HD53 ACS/WFC ACCUM WFCENTER CLEAR1L 50.00 94 01 01 VS F814W 2026.155 04:11:57 04:17:19 1777694 Terry 94-002 ANY WFC3/UVI ACCUM UVIS-CENTER F814W 100.00 94 01 02 VT 2026.155 04:17:19 04:17:29 1777694 Terry 94-003 GBTDS-HD53 ACS/WFC ACCUM WFCENTER CLEAR1L 340.00 94 02 01 VU F814W 2026.155 04:17:19 04:25:19 1777694 Terry 94-004 ANY WFC3/UVI ACCUM UVIS-CENTER F814W 340.00 94 02 02 VV 2026.155 04:36:25 04:37:30 1777694 Terry 94-005 GBTDS-HD53 ACS/WFC ACCUM WFCENTER F606W 340.00 94 04 01 VY CLEAR2L 2026.155 04:36:25 04:46:05 1777694 Terry 94-006 ANY WFC3/UVI ACCUM UVIS-CENTER F606W 375.00 94 04 02 VZ 2026.155 04:46:05 04:46:15 1777694 Terry 94-007 GBTDS-HD53 ACS/WFC ACCUM WFCENTER F606W 340.00 94 05 01 W1 CLEAR2L 2026.155 04:46:05 04:54:05 1777694 Terry 94-008 ANY WFC3/UVI ACCUM UVIS-CENTER F606W 330.00 94 05 02 W2 2026.155 05:10:58 05:14:00 1795816 Huynh 16-001 DARK-NM WFC3/IR MULTIA IR BLANK 83.01 16 01 01 W6 2026.155 05:14:00 05:15:35 1795816 Huynh 16-002 TUNGSTEN WFC3/IR MULTIA IR F126N 52.99 16 02 01 W7 2026.155 05:15:35 05:17:34 1795816 Huynh 16-003 TUNGSTEN WFC3/IR MULTIA IR F126N 603.04 16 02 02 W8 2026.155 05:26:54 05:33:31 1795816 Huynh 16-004 DARK WFC3/IR MULTIA IR BLANK 353.06 16 03 01 WA 2026.155 05:59:53 06:23:06 1806205 Jones 05-001 PAVO ACS/WFC ACCUM WFC1 F606W 1153.00 05 01 01 WC CLEAR2L 2026.155 05:59:53 06:23:06 1806205 Jones 05-002 ANY WFC3/UVI ACCUM UVIS F606W 1213.00 05 01 02 WD 2026.155 06:23:06 06:23:16 1806205 Jones 05-003 PAVO ACS/WFC ACCUM WFC1 F606W 1153.00 05 02 01 WE CLEAR2L 2026.155 06:23:06 06:44:39 1806205 Jones 05-004 ANY WFC3/UVI ACCUM UVIS F606W 1163.00 05 02 02 WF 2026.155 07:01:32 07:03:58 1795115 Huynh 15-001 TUNGSTEN WFC3/UVI ACCUM UVIS1-M512-S F645N 60.00 15 01 01 WJ 2026.155 07:03:58 07:04:06 1795115 Huynh 15-002 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 45.00 15 01 02 WK 2026.155 07:06:51 07:09:46 1795115 Huynh 15-002 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 45.00 15 01 03 WM 2026.155 07:20:52 07:23:01 1795115 Huynh 15-003 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 1.00 15 01 04 WO 2026.155 07:23:01 07:25:27 1795115 Huynh 15-003 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 1.00 15 01 05 WP 2026.155 07:54:09 07:58:31 1824601 Som 01-001 WD0308-565 COS/NUV ACQ/IM BOA MIRRORA 11.00 01 01 01 WR 28-May-2026 21:36:07 --- HST Observing Timeline Report for SMS: 261517A5 --- Page 15 SMS Start: 2026.151:23:40:00 (31-MAY-2026 23:40:00), End: 2026.158:17:50:00 (07-JUN-2026 17:50:00) Observation Set Principal Science Spectral Exposure Begin UT End UT SU Id Investigat Exp # Target Instrume Mode Apertures Elements Time(sec) OB AL EX O# -------- -------- -------- ------- ---------- ------ ---------- -------- ------ ------------ ------------ --------- -- -- -- -- 2026.155 07:59:29 08:02:52 1824601 Som 01-002 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 01 03 01 WT 2026.155 08:03:28 08:04:51 1824601 Som 01-003 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 01 05 01 WV 2026.155 08:05:27 08:06:50 1824601 Som 01-004 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 01 07 01 WX 2026.155 08:07:26 08:08:49 1824601 Som 01-005 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 01 09 01 WZ 2026.155 08:09:25 08:10:48 1824601 Som 01-006 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 01 0B 01 X1 2026.155 08:11:24 08:12:47 1824601 Som 01-007 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 01 0D 01 X3 2026.155 08:13:23 08:14:46 1824601 Som 01-008 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 01 0F 01 X5 2026.155 08:15:22 08:16:45 1824601 Som 01-009 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 01 0H 01 X7 2026.155 08:17:21 08:18:44 1824601 Som 01-010 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 01 0J 01 X9 2026.155 08:19:20 08:20:43 1824601 Som 01-011 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 01 0L 01 XB 2026.155 08:21:19 08:22:42 1824601 Som 01-012 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 01 0N 01 XD 2026.155 08:23:18 08:24:41 1824601 Som 01-013 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 01 0P 01 XF 2026.155 08:25:17 08:26:40 1824601 Som 01-014 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 01 0R 01 XH 2026.155 08:27:16 08:28:39 1824601 Som 01-015 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 01 0T 01 XJ 2026.155 08:29:15 08:30:38 1824601 Som 01-016 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 01 0V 01 XL 2026.155 08:31:14 08:32:37 1824601 Som 01-017 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 01 0X 01 XN 2026.155 08:33:13 08:34:36 1824601 Som 01-018 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 01 0Z 01 XP 2026.155 08:35:12 08:36:35 1824601 Som 01-019 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 01 11 01 XR 2026.155 08:37:11 08:38:34 1824601 Som 01-020 WD0308-565 COS/FUV TIME-T PSA G130M 21.00 01 13 01 XT 2026.155 08:49:20 08:52:22 179721C Kuhn 1C-001 DARK-EARTH-CALIB WFC3/IR MULTIA IR F153M 102.97 1C 01 01 XV 2026.155 10:16:38 10:20:12 1811616 Wang 16-001 J1456+380 WFC3/IR MULTIA IRSUB512 F160W 174.37 16 01 01 XX 2026.155 10:26:58 10:30:32 1811616 Wang 16-001 J1456+380 WFC3/IR MULTIA IRSUB512 F160W 174.37 16 02 01 Y1 2026.155 10:37:18 10:37:54 1811616 Wang 16-001 J1456+380 WFC3/IR MULTIA IRSUB512 F160W 174.37 16 03 01 Y5 2026.155 10:47:38 10:51:12 1811616 Wang 16-001 J1456+380 WFC3/IR MULTIA IRSUB512 F160W 174.37 16 04 01 YA 2026.155 10:20:12 10:23:25 1811616 Wang 16-001 J1456+380 WFC3/IR MULTIA IRSUB512 F160W 174.37 16 01 02 XY 2026.155 10:30:32 10:30:47 1811616 Wang 16-001 J1456+380 WFC3/IR MULTIA IRSUB512 F160W 174.37 16 02 02 Y2 2026.155 10:40:52 10:44:05 1811616 Wang 16-001 J1456+380 WFC3/IR MULTIA IRSUB512 F160W 174.37 16 03 02 Y7 2026.155 10:51:12 10:54:25 1811616 Wang 16-001 J1456+380 WFC3/IR MULTIA IRSUB512 F160W 174.37 16 04 02 YB 2026.155 10:23:25 10:23:39 1811616 Wang 16-001 J1456+380 WFC3/IR MULTIA IRSUB512 F160W 174.37 16 01 03 XZ 2026.155 10:33:45 10:37:18 1811616 Wang 16-001 J1456+380 WFC3/IR MULTIA IRSUB512 F160W 174.37 16 02 03 Y4 2026.155 10:44:05 10:44:20 1811616 Wang 16-001 J1456+380 WFC3/IR MULTIA IRSUB512 F160W 174.37 16 03 03 Y8 2026.155 10:54:25 11:50:23 1811616 Wang 16-001 J1456+380 WFC3/IR MULTIA IRSUB512 F160W 174.37 16 04 03 YC 2026.155 11:50:23 11:51:03 1811616 Wang 16-002 J1456+380 WFC3/UVI ACCUM UVIS1-2K2A-S F689M 290.00 16 05 01 YD 2026.155 12:02:25 12:02:33 1811616 Wang 16-002 J1456+380 WFC3/UVI ACCUM UVIS1-2K2A-S F689M 290.00 16 07 01 YG 2026.155 12:13:55 12:21:53 1811616 Wang 16-002 J1456+380 WFC3/UVI ACCUM UVIS1-2K2A-S F689M 290.00 16 09 01 YJ 2026.155 12:25:25 13:23:59 1811616 Wang 16-002 J1456+380 WFC3/UVI ACCUM UVIS1-2K2A-S F689M 290.00 16 0B 01 YL 2026.155 11:58:53 12:02:25 1811616 Wang 16-003 J1456+380 WFC3/UVI ACCUM UVIS1-2K2A-S F689M 20.00 16 06 01 YF 2026.155 12:10:23 12:13:55 1811616 Wang 16-003 J1456+380 WFC3/UVI ACCUM UVIS1-2K2A-S F689M 20.00 16 08 01 YI 2026.155 12:21:53 12:25:25 1811616 Wang 16-003 J1456+380 WFC3/UVI ACCUM UVIS1-2K2A-S F689M 20.00 16 0A 01 YK 2026.155 13:23:59 13:27:33 1811616 Wang 16-003 J1456+380 WFC3/UVI ACCUM UVIS1-2K2A-S F689M 20.00 16 0C 01 YM 2026.155 13:36:45 13:39:11 1795116 Huynh 16-001 TUNGSTEN WFC3/UVI ACCUM UVIS1-M512-S F645N 60.00 16 01 01 YO 2026.155 13:39:11 13:41:31 1795116 Huynh 16-002 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 12.00 16 01 02 YP 2026.155 13:41:31 13:43:53 1795116 Huynh 16-002 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 12.00 16 01 03 YQ 2026.155 13:55:03 13:57:16 1795116 Huynh 16-003 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 5.00 16 01 04 YS 2026.155 13:57:16 13:59:31 1795116 Huynh 16-003 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 5.00 16 01 05 YT 28-May-2026 21:36:07 --- HST Observing Timeline Report for SMS: 261517A5 --- Page 16 SMS Start: 2026.151:23:40:00 (31-MAY-2026 23:40:00), End: 2026.158:17:50:00 (07-JUN-2026 17:50:00) Observation Set Principal Science Spectral Exposure Begin UT End UT SU Id Investigat Exp # Target Instrume Mode Apertures Elements Time(sec) OB AL EX O# -------- -------- -------- ------- ---------- ------ ---------- -------- ------ ------------ ------------ --------- -- -- -- -- 2026.155 14:10:37 14:12:52 1795116 Huynh 16-004 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 7.00 16 01 06 YV 2026.155 14:12:52 14:15:24 1795116 Huynh 16-004 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 7.00 16 01 07 YW 2026.155 15:10:03 15:15:25 1777695 Terry 95-001 GBTDS-HD54 ACS/WFC ACCUM WFCENTER CLEAR1L 50.00 95 01 01 YY F814W 2026.155 15:10:03 15:15:25 1777695 Terry 95-002 ANY WFC3/UVI ACCUM UVIS-CENTER F814W 100.00 95 01 02 YZ 2026.155 15:15:25 15:15:35 1777695 Terry 95-003 GBTDS-HD54 ACS/WFC ACCUM WFCENTER CLEAR1L 340.00 95 02 01 Z0 F814W 2026.155 15:15:25 15:23:25 1777695 Terry 95-004 ANY WFC3/UVI ACCUM UVIS-CENTER F814W 340.00 95 02 02 Z1 2026.155 15:34:31 15:35:36 1777695 Terry 95-005 GBTDS-HD54 ACS/WFC ACCUM WFCENTER F606W 340.00 95 04 01 Z4 CLEAR2L 2026.155 15:34:31 15:44:11 1777695 Terry 95-006 ANY WFC3/UVI ACCUM UVIS-CENTER F606W 375.00 95 04 02 Z5 2026.155 15:44:11 15:44:21 1777695 Terry 95-007 GBTDS-HD54 ACS/WFC ACCUM WFCENTER F606W 340.00 95 05 01 Z7 CLEAR2L 2026.155 15:44:11 15:52:11 1777695 Terry 95-008 ANY WFC3/UVI ACCUM UVIS-CENTER F606W 330.00 95 05 02 Z8 2026.155 16:56:40 17:19:53 1806206 Jones 06-001 PAVO ACS/WFC ACCUM WFC1 F606W 1153.00 06 01 01 ZC CLEAR2L 2026.155 16:56:40 17:19:53 1806206 Jones 06-002 ANY WFC3/UVI ACCUM UVIS F606W 1213.00 06 01 02 ZD 2026.155 17:19:53 17:20:03 1806206 Jones 06-003 PAVO ACS/WFC ACCUM WFC1 F606W 1153.00 06 02 01 ZE CLEAR2L 2026.155 17:19:53 17:41:26 1806206 Jones 06-004 ANY WFC3/UVI ACCUM UVIS F606W 1163.00 06 02 02 ZF 2026.155 18:18:24 18:23:46 1777698 Terry 98-001 GBTDS-HD59 ACS/WFC ACCUM WFCENTER CLEAR1L 50.00 98 01 01 ZJ F814W 2026.155 18:18:24 18:23:46 1777698 Terry 98-002 ANY WFC3/UVI ACCUM UVIS-CENTER F814W 100.00 98 01 02 ZK 2026.155 18:23:46 18:23:56 1777698 Terry 98-003 GBTDS-HD59 ACS/WFC ACCUM WFCENTER CLEAR1L 340.00 98 02 01 ZL F814W 2026.155 18:23:46 18:31:46 1777698 Terry 98-004 ANY WFC3/UVI ACCUM UVIS-CENTER F814W 340.00 98 02 02 ZM 2026.155 18:42:52 18:43:57 1777698 Terry 98-005 GBTDS-HD59 ACS/WFC ACCUM WFCENTER F606W 340.00 98 04 01 ZP CLEAR2L 2026.155 18:42:52 18:52:32 1777698 Terry 98-006 ANY WFC3/UVI ACCUM UVIS-CENTER F606W 375.00 98 04 02 ZQ 2026.155 18:52:32 18:52:42 1777698 Terry 98-007 GBTDS-HD59 ACS/WFC ACCUM WFCENTER F606W 340.00 98 05 01 ZS CLEAR2L 2026.155 18:52:32 19:00:32 1777698 Terry 98-008 ANY WFC3/UVI ACCUM UVIS-CENTER F606W 330.00 98 05 02 ZT 2026.155 20:05:30 20:28:43 1806207 Jones 07-001 PAVO ACS/WFC ACCUM WFC1 F606W 1153.00 07 01 01 ZX CLEAR2L 2026.155 20:05:30 20:28:43 1806207 Jones 07-002 ANY WFC3/UVI ACCUM UVIS F606W 1213.00 07 01 02 ZY 2026.155 20:28:43 20:28:53 1806207 Jones 07-003 PAVO ACS/WFC ACCUM WFC1 F606W 1153.00 07 02 01 ZZ CLEAR2L 2026.155 20:28:43 20:50:16 1806207 Jones 07-004 ANY WFC3/UVI ACCUM UVIS F606W 1163.00 07 02 02 A1 2026.155 21:51:57 21:56:02 17804D4 Loyd D4-001 TOI-244 STIS/CCD ACQ F28X50LP MIRVIS 0.10 D4 01 01 A5 2026.155 21:56:37 22:33:29 17804D4 Loyd D4-002 TOI-244 STIS/MA1 TIME-T SL200 G140M 2040.00 D4 03 01 A7 2026.155 22:36:23 22:38:32 17804D4 Loyd D4-003 WAVEHITM STIS/MA1 ACCUM SL200 G140M 0.00 D4 05 01 A9 2026.155 23:14:20 23:37:33 1806208 Jones 08-001 PAVO ACS/WFC ACCUM WFC1 F606W 1153.00 08 01 01 AB CLEAR2L 2026.155 23:14:20 23:37:33 1806208 Jones 08-002 ANY WFC3/UVI ACCUM UVIS F606W 1213.00 08 01 02 AC 28-May-2026 21:36:07 --- HST Observing Timeline Report for SMS: 261517A5 --- Page 17 SMS Start: 2026.151:23:40:00 (31-MAY-2026 23:40:00), End: 2026.158:17:50:00 (07-JUN-2026 17:50:00) Observation Set Principal Science Spectral Exposure Begin UT End UT SU Id Investigat Exp # Target Instrume Mode Apertures Elements Time(sec) OB AL EX O# -------- -------- -------- ------- ---------- ------ ---------- -------- ------ ------------ ------------ --------- -- -- -- -- 2026.155 23:37:33 23:37:43 1806208 Jones 08-003 PAVO ACS/WFC ACCUM WFC1 F606W 1153.00 08 02 01 AD CLEAR2L 2026.155 23:37:33 23:59:06 1806208 Jones 08-004 ANY WFC3/UVI ACCUM UVIS F606W 1163.00 08 02 02 AE 2026.156 00:00:00 00:19:04 18155BX Dallas BX-001 DARK STIS/CCD ACCUM F28X50LP MIRVIS 1100.00 BX 01 01 AH 2026.156 00:19:04 00:20:48 18155BX Dallas BX-002 DARK STIS/CCD ACCUM F28X50LP MIRVIS 60.00 BX 01 02 AI 2026.156 00:20:48 00:26:47 18155BX Dallas BX-003 DARK STIS/CCD ACCUM F28X50LP MIRVIS 60.00 BX 01 03 AJ 2026.156 00:16:19 00:20:43 17978AS Guzman AS-001 BIAS ACS/WFC ACCUM WFC F502N 0.00 AS 01 01 AL F660N 2026.156 00:20:43 00:20:58 17978AS Guzman AS-002 DARK ACS/WFC ACCUM WFC F502N 650.50 AS 01 02 AM F660N 2026.156 00:34:04 00:34:19 17978AS Guzman AS-003 DARK ACS/WFC ACCUM WFC F502N 650.50 AS 01 03 AO F660N 2026.156 00:32:43 00:51:47 18155BY Dallas BY-001 DARK STIS/CCD ACCUM F28X50LP MIRVIS 1100.00 BY 01 01 AR 2026.156 00:51:47 00:53:31 18155BY Dallas BY-002 DARK STIS/CCD ACCUM F28X50LP MIRVIS 60.00 BY 01 02 AS 2026.156 00:53:31 00:55:19 18155BY Dallas BY-003 DARK STIS/CCD ACCUM F28X50LP MIRVIS 60.00 BY 01 03 AT 2026.156 00:54:33 01:05:34 1776905 Pavlov 05-001 PSRJ0030+0451 WFC3/IR MULTIA IR F110W 599.33 05 01 01 AV 2026.156 01:05:34 01:07:50 1776905 Pavlov 05-001 PSRJ0030+0451 WFC3/IR MULTIA IR F110W 599.33 05 02 01 B2 2026.156 01:16:35 01:27:36 1776905 Pavlov 05-001 PSRJ0030+0451 WFC3/IR MULTIA IR F110W 599.33 05 03 01 B4 2026.156 01:27:36 01:38:54 1776905 Pavlov 05-001 PSRJ0030+0451 WFC3/IR MULTIA IR F110W 599.33 05 04 01 B5 2026.156 00:56:54 01:01:30 17978AT Guzman AT-001 DARK ACS/WFC ACCUM WFC F502N 0.50 AT 01 01 AX F660N 2026.156 01:01:30 01:01:45 17978AT Guzman AT-002 DARK ACS/WFC ACCUM WFC F502N 650.50 AT 01 02 AY F660N 2026.156 01:14:51 01:15:06 17978AT Guzman AT-003 DARK ACS/WFC ACCUM WFC F502N 650.50 AT 01 03 B0 F660N 2026.156 01:44:10 01:44:54 181585Z Lothringer 5Z-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Z 01 01 B8 2026.156 01:44:54 01:45:38 181585Z Lothringer 5Z-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Z 01 02 B9 2026.156 01:45:38 01:46:22 181585Z Lothringer 5Z-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Z 01 03 BA 2026.156 01:46:22 01:47:06 181585Z Lothringer 5Z-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Z 01 04 BB 2026.156 01:47:06 01:47:50 181585Z Lothringer 5Z-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Z 01 05 BC 2026.156 01:47:50 01:48:34 181585Z Lothringer 5Z-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Z 01 06 BD 2026.156 01:48:34 01:49:22 181585Z Lothringer 5Z-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Z 01 07 BE 2026.156 01:52:15 01:52:59 181585Z Lothringer 5Z-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Z 01 08 BG 2026.156 01:52:59 01:53:43 181585Z Lothringer 5Z-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Z 01 09 BH 2026.156 01:53:43 01:54:27 181585Z Lothringer 5Z-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Z 01 0A BI 2026.156 01:54:27 01:55:11 181585Z Lothringer 5Z-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Z 01 0B BJ 2026.156 01:55:11 01:55:55 181585Z Lothringer 5Z-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Z 01 0C BK 2026.156 01:55:55 01:56:39 181585Z Lothringer 5Z-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Z 01 0D BL 2026.156 01:56:39 01:57:27 181585Z Lothringer 5Z-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Z 01 0E BM 2026.156 02:00:20 02:01:04 181585Z Lothringer 5Z-002 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Z 01 0F BO 2026.156 02:01:04 02:01:48 181585Z Lothringer 5Z-002 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Z 01 0G BP 2026.156 02:01:48 02:02:32 181585Z Lothringer 5Z-002 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Z 01 0H BQ 2026.156 02:02:32 02:03:19 181585Z Lothringer 5Z-003 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Z 01 0I BR 2026.156 02:03:19 02:04:06 181585Z Lothringer 5Z-003 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Z 01 0J BS 2026.156 02:04:06 02:04:53 181585Z Lothringer 5Z-004 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Z 01 0K BT 28-May-2026 21:36:07 --- HST Observing Timeline Report for SMS: 261517A5 --- Page 18 SMS Start: 2026.151:23:40:00 (31-MAY-2026 23:40:00), End: 2026.158:17:50:00 (07-JUN-2026 17:50:00) Observation Set Principal Science Spectral Exposure Begin UT End UT SU Id Investigat Exp # Target Instrume Mode Apertures Elements Time(sec) OB AL EX O# -------- -------- -------- ------- ---------- ------ ---------- -------- ------ ------------ ------------ --------- -- -- -- -- 2026.156 02:04:53 02:05:44 181585Z Lothringer 5Z-004 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 5Z 01 0L BU 2026.156 02:23:10 02:46:23 1806209 Jones 09-001 PAVO ACS/WFC ACCUM WFC1 F606W 1153.00 09 01 01 BW CLEAR2L 2026.156 02:23:10 02:46:23 1806209 Jones 09-002 ANY WFC3/UVI ACCUM UVIS F606W 1213.00 09 01 02 BX 2026.156 02:46:23 02:46:33 1806209 Jones 09-003 PAVO ACS/WFC ACCUM WFC1 F606W 1153.00 09 02 01 BY CLEAR2L 2026.156 02:46:23 03:07:56 1806209 Jones 09-004 ANY WFC3/UVI ACCUM UVIS F606W 1163.00 09 02 02 BZ 2026.156 03:30:00 03:34:24 17980BR Guzman BR-001 BIAS ACS/WFC ACCUM WFC F502N 0.00 BR 01 01 C3 F660N 2026.156 03:34:24 03:34:34 17980BR Guzman BR-002 DARK ACS/WFC ACCUM WFC F502N 1040.00 BR 01 02 C4 F660N 2026.156 03:59:49 04:04:13 17980BS Guzman BS-001 BIAS ACS/WFC ACCUM WFC F502N 0.00 BS 01 01 C7 F660N 2026.156 04:04:13 04:04:23 17980BS Guzman BS-002 DARK ACS/WFC ACCUM WFC F502N 1040.00 BS 01 02 C8 F660N 2026.156 04:10:51 04:35:19 1805801 Legnardi 01-001 NGC-121 WFC3/UVI ACCUM UVIS2 F275W 1297.00 01 01 01 CA 2026.156 04:35:19 05:09:48 1805801 Legnardi 01-001 NGC-121 WFC3/UVI ACCUM UVIS2 F275W 1297.00 01 02 01 CF 2026.156 04:29:38 04:34:02 17980BT Guzman BT-001 BIAS ACS/WFC ACCUM WFC F502N 0.00 BT 01 01 CC F660N 2026.156 04:34:02 04:34:12 17980BT Guzman BT-002 DARK ACS/WFC ACCUM WFC F502N 1040.00 BT 01 02 CD F660N 2026.156 04:59:27 05:03:51 17980BU Guzman BU-001 BIAS ACS/WFC ACCUM WFC F502N 0.00 BU 01 01 CH F660N 2026.156 05:03:51 05:04:01 17980BU Guzman BU-002 DARK ACS/WFC ACCUM WFC F502N 1040.00 BU 01 02 CI F660N 2026.156 05:20:56 05:38:47 179471E Pidgeon 1E-001 DARK-NM WFC3/UVI ACCUM UVIS F469N 900.00 1E 01 01 CL 2026.156 05:38:47 05:56:08 179471E Pidgeon 1E-001 DARK-NM WFC3/UVI ACCUM UVIS F469N 900.00 1E 02 01 CN 2026.156 06:07:14 06:25:05 179471F Pidgeon 1F-001 DARK-NM WFC3/UVI ACCUM UVIS F343N 900.00 1F 01 01 CP 2026.156 06:25:05 06:44:07 179471F Pidgeon 1F-001 DARK-NM WFC3/UVI ACCUM UVIS F343N 900.00 1F 02 01 CQ 2026.156 06:30:43 06:43:11 1808815 Berg 15-001 J1314+3452 COS/NUV ACQ/IM PSA MIRRORA 259.00 15 01 01 CR 2026.156 06:44:05 07:16:48 1808815 Berg 15-002 J1314+3452 COS/FUV TIME-T PSA G140L 1740.00 15 03 01 CU 2026.156 08:06:23 08:49:55 1808815 Berg 15-003 J1314+3452 COS/FUV TIME-T PSA G140L 2543.00 15 05 01 D2 2026.156 06:55:34 06:57:44 1795422 O'Connor 22-001 BIAS WFC3/UVI ACCUM UVIS 0.00 22 01 01 CV 2026.156 06:57:44 06:59:56 1795422 O'Connor 22-001 BIAS WFC3/UVI ACCUM UVIS 0.00 22 02 01 CW 2026.156 07:11:02 07:13:12 1795422 O'Connor 22-001 BIAS WFC3/UVI ACCUM UVIS 0.00 22 04 01 CY 2026.156 07:13:12 07:17:55 1795422 O'Connor 22-001 BIAS WFC3/UVI ACCUM UVIS 0.00 22 05 01 CZ 2026.156 09:38:41 09:51:09 1808816 Berg 16-001 J1314+3452 COS/NUV ACQ/IM PSA MIRRORA 259.00 16 01 01 D4 2026.156 09:52:03 10:24:46 1808816 Berg 16-002 J1314+3452 COS/FUV TIME-T PSA G140L 1740.00 16 03 01 D6 2026.156 11:14:21 11:57:53 1808816 Berg 16-003 J1314+3452 COS/FUV TIME-T PSA G140L 2543.00 16 05 01 D8 2026.156 12:48:24 13:31:53 1808816 Berg 16-004 J1314+3452 COS/FUV TIME-T PSA G140L 2543.00 16 07 01 DA 2026.156 11:31:36 17:31:36 17980BV Guzman BV-001 NONE ACS ANNEAL 21600.00 BV 01 01 2026.156 14:35:04 14:37:39 18112M1 Wolf M1-001 J1716+3005 WFC3/IR MULTIA GRISM1024 F105W 113.04 M1 01 01 DC 2026.156 14:37:39 14:56:53 18112M1 Wolf M1-002 J1716+3005 WFC3/IR MULTIA GRISM1024 G102 1103.03 M1 01 02 DD 2026.156 14:56:53 14:57:33 18112M1 Wolf M1-002 J1716+3005 WFC3/IR MULTIA GRISM1024 G102 1103.03 M1 02 01 DE 2026.156 16:13:13 16:18:22 1745901 Kalas 01-001 -ALF-LYR STIS/CCD ACQ F25ND5 MIRVIS 0.70 01 01 01 DH 28-May-2026 21:36:07 --- HST Observing Timeline Report for SMS: 261517A5 --- Page 19 SMS Start: 2026.151:23:40:00 (31-MAY-2026 23:40:00), End: 2026.158:17:50:00 (07-JUN-2026 17:50:00) Observation Set Principal Science Spectral Exposure Begin UT End UT SU Id Investigat Exp # Target Instrume Mode Apertures Elements Time(sec) OB AL EX O# -------- -------- -------- ------- ---------- ------ ---------- -------- ------ ------------ ------------ --------- -- -- -- -- 2026.156 16:18:57 16:19:59 1745901 Kalas 01-002 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 01 DJ 2026.156 16:19:59 16:20:36 1745901 Kalas 01-002 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 02 DK 2026.156 16:20:36 16:21:13 1745901 Kalas 01-002 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 03 DL 2026.156 16:21:13 16:21:50 1745901 Kalas 01-002 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 04 DM 2026.156 16:21:50 16:22:27 1745901 Kalas 01-002 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 05 DN 2026.156 16:22:27 16:23:04 1745901 Kalas 01-002 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 06 DO 2026.156 16:23:04 16:23:41 1745901 Kalas 01-002 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 07 DP 2026.156 16:23:41 16:24:18 1745901 Kalas 01-002 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 08 DQ 2026.156 16:24:18 16:24:55 1745901 Kalas 01-003 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 09 DR 2026.156 16:24:55 16:25:32 1745901 Kalas 01-003 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 0A DS 2026.156 16:25:32 16:26:13 1745901 Kalas 01-003 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 0B DT 2026.156 16:29:13 16:29:50 1745901 Kalas 01-003 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 0C DV 2026.156 16:29:50 16:30:27 1745901 Kalas 01-003 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 0D DW 2026.156 16:30:27 16:31:04 1745901 Kalas 01-003 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 0E DX 2026.156 16:31:04 16:31:41 1745901 Kalas 01-003 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 0F DY 2026.156 16:31:41 16:32:18 1745901 Kalas 01-003 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 0G DZ 2026.156 16:32:18 16:32:55 1745901 Kalas 01-004 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 0H E0 2026.156 16:32:55 16:33:32 1745901 Kalas 01-004 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 0I E1 2026.156 16:33:32 16:34:09 1745901 Kalas 01-004 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 0J E2 2026.156 16:34:09 16:34:46 1745901 Kalas 01-004 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 0K E3 2026.156 16:34:46 16:35:23 1745901 Kalas 01-004 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 0L E4 2026.156 16:35:23 16:36:04 1745901 Kalas 01-004 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 0M E5 2026.156 16:39:04 16:39:41 1745901 Kalas 01-004 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 0N E7 2026.156 16:39:41 16:40:18 1745901 Kalas 01-004 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 0O E8 2026.156 16:40:18 16:40:55 1745901 Kalas 01-005 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 0P E9 2026.156 16:40:55 16:41:32 1745901 Kalas 01-005 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 0Q EA 2026.156 16:41:32 16:42:09 1745901 Kalas 01-005 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 0R EB 2026.156 16:42:09 16:42:46 1745901 Kalas 01-005 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 0S EC 2026.156 16:42:46 16:43:23 1745901 Kalas 01-005 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 0T ED 2026.156 16:43:23 16:44:00 1745901 Kalas 01-005 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 0U EE 2026.156 16:44:00 16:44:37 1745901 Kalas 01-005 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 0V EF 2026.156 16:44:37 16:45:14 1745901 Kalas 01-005 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 0W EG 2026.156 16:45:14 16:45:55 1745901 Kalas 01-006 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 0X EH 2026.156 16:48:55 16:49:32 1745901 Kalas 01-006 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 0Y EJ 2026.156 16:49:32 16:50:09 1745901 Kalas 01-006 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 0Z EK 2026.156 16:50:09 16:50:46 1745901 Kalas 01-006 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 10 EL 2026.156 16:50:46 16:51:23 1745901 Kalas 01-006 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 11 EM 2026.156 16:51:23 16:52:00 1745901 Kalas 01-006 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 12 EN 2026.156 16:52:00 16:52:37 1745901 Kalas 01-006 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 13 EO 2026.156 16:52:37 16:53:14 1745901 Kalas 01-006 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 14 EP 2026.156 16:53:14 16:53:51 1745901 Kalas 01-007 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 15 EQ 2026.156 16:53:51 16:54:28 1745901 Kalas 01-007 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 16 ER 2026.156 16:54:28 16:55:05 1745901 Kalas 01-007 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 17 ES 2026.156 16:55:05 16:55:52 1745901 Kalas 01-007 -ALF-LYR STIS/CCD ACCUM A50CORON MIRVIS 0.40 01 03 18 ET 2026.156 18:07:03 18:12:18 1745902 Kalas 02-001 -ALF-PSA STIS/CCD ACQ F25ND5 MIRVIS 2.00 02 01 01 EV 28-May-2026 21:36:08 --- HST Observing Timeline Report for SMS: 261517A5 --- Page 20 SMS Start: 2026.151:23:40:00 (31-MAY-2026 23:40:00), End: 2026.158:17:50:00 (07-JUN-2026 17:50:00) Observation Set Principal Science Spectral Exposure Begin UT End UT SU Id Investigat Exp # Target Instrume Mode Apertures Elements Time(sec) OB AL EX O# -------- -------- -------- ------- ---------- ------ ---------- -------- ------ ------------ ------------ --------- -- -- -- -- 2026.156 18:12:53 18:13:56 1745902 Kalas 02-002 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 01 EX 2026.156 18:13:56 18:14:34 1745902 Kalas 02-002 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 02 EY 2026.156 18:14:34 18:15:12 1745902 Kalas 02-002 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 03 EZ 2026.156 18:15:12 18:15:50 1745902 Kalas 02-002 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 04 F0 2026.156 18:15:50 18:16:28 1745902 Kalas 02-002 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 05 F1 2026.156 18:16:28 18:17:06 1745902 Kalas 02-002 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 06 F2 2026.156 18:17:06 18:17:44 1745902 Kalas 02-002 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 07 F3 2026.156 18:17:44 18:18:22 1745902 Kalas 02-002 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 08 F4 2026.156 18:18:22 18:19:00 1745902 Kalas 02-003 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 09 F5 2026.156 18:19:00 18:19:38 1745902 Kalas 02-003 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 0A F6 2026.156 18:19:38 18:20:20 1745902 Kalas 02-003 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 0B F7 2026.156 18:23:20 18:23:58 1745902 Kalas 02-003 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 0C F9 2026.156 18:23:58 18:24:36 1745902 Kalas 02-003 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 0D FA 2026.156 18:24:36 18:25:14 1745902 Kalas 02-003 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 0E FB 2026.156 18:25:14 18:25:52 1745902 Kalas 02-003 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 0F FC 2026.156 18:25:52 18:26:30 1745902 Kalas 02-003 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 0G FD 2026.156 18:26:30 18:27:08 1745902 Kalas 02-004 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 0H FE 2026.156 18:27:08 18:27:46 1745902 Kalas 02-004 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 0I FF 2026.156 18:27:46 18:28:24 1745902 Kalas 02-004 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 0J FG 2026.156 18:28:24 18:29:02 1745902 Kalas 02-004 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 0K FH 2026.156 18:29:02 18:29:40 1745902 Kalas 02-004 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 0L FI 2026.156 18:29:40 18:30:22 1745902 Kalas 02-004 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 0M FJ 2026.156 18:33:22 18:34:00 1745902 Kalas 02-004 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 0N FL 2026.156 18:34:00 18:34:38 1745902 Kalas 02-004 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 0O FM 2026.156 18:34:38 18:35:16 1745902 Kalas 02-005 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 0P FN 2026.156 18:35:16 18:35:54 1745902 Kalas 02-005 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 0Q FO 2026.156 18:35:54 18:36:32 1745902 Kalas 02-005 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 0R FP 2026.156 18:36:32 18:37:10 1745902 Kalas 02-005 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 0S FQ 2026.156 18:37:10 18:37:48 1745902 Kalas 02-005 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 0T FR 2026.156 18:37:48 18:38:26 1745902 Kalas 02-005 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 0U FS 2026.156 18:38:26 18:39:04 1745902 Kalas 02-005 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 0V FT 2026.156 18:39:04 18:39:42 1745902 Kalas 02-005 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 0W FU 2026.156 18:39:42 18:40:24 1745902 Kalas 02-006 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 0X FV 2026.156 18:43:24 18:44:02 1745902 Kalas 02-006 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 0Y FX 2026.156 18:44:02 18:44:40 1745902 Kalas 02-006 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 0Z FY 2026.156 18:44:40 18:45:18 1745902 Kalas 02-006 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 10 FZ 2026.156 18:45:18 18:45:56 1745902 Kalas 02-006 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 11 G0 2026.156 18:45:56 18:46:34 1745902 Kalas 02-006 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 12 G1 2026.156 18:46:34 18:47:12 1745902 Kalas 02-006 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 13 G2 2026.156 18:47:12 18:47:50 1745902 Kalas 02-006 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 14 G3 2026.156 18:47:50 18:48:28 1745902 Kalas 02-007 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 15 G4 2026.156 18:48:28 18:49:06 1745902 Kalas 02-007 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 16 G5 2026.156 18:49:06 18:49:44 1745902 Kalas 02-007 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 17 G6 2026.156 18:49:44 19:08:23 1745902 Kalas 02-007 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 02 03 18 G7 2026.156 19:41:09 19:46:24 1745903 Kalas 03-001 -ALF-PSA STIS/CCD ACQ F25ND5 MIRVIS 2.00 03 01 01 G9 28-May-2026 21:36:08 --- HST Observing Timeline Report for SMS: 261517A5 --- Page 21 SMS Start: 2026.151:23:40:00 (31-MAY-2026 23:40:00), End: 2026.158:17:50:00 (07-JUN-2026 17:50:00) Observation Set Principal Science Spectral Exposure Begin UT End UT SU Id Investigat Exp # Target Instrume Mode Apertures Elements Time(sec) OB AL EX O# -------- -------- -------- ------- ---------- ------ ---------- -------- ------ ------------ ------------ --------- -- -- -- -- 2026.156 19:46:59 19:48:02 1745903 Kalas 03-002 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 01 GB 2026.156 19:48:02 19:48:40 1745903 Kalas 03-002 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 02 GC 2026.156 19:48:40 19:49:18 1745903 Kalas 03-002 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 03 GD 2026.156 19:49:18 19:49:56 1745903 Kalas 03-002 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 04 GE 2026.156 19:49:56 19:50:34 1745903 Kalas 03-002 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 05 GF 2026.156 19:50:34 19:51:12 1745903 Kalas 03-002 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 06 GG 2026.156 19:51:12 19:51:50 1745903 Kalas 03-002 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 07 GH 2026.156 19:51:50 19:52:28 1745903 Kalas 03-002 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 08 GI 2026.156 19:52:28 19:53:06 1745903 Kalas 03-003 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 09 GJ 2026.156 19:53:06 19:53:44 1745903 Kalas 03-003 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 0A GK 2026.156 19:53:44 19:54:26 1745903 Kalas 03-003 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 0B GL 2026.156 19:57:26 19:58:04 1745903 Kalas 03-003 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 0C GN 2026.156 19:58:04 19:58:42 1745903 Kalas 03-003 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 0D GO 2026.156 19:58:42 19:59:20 1745903 Kalas 03-003 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 0E GP 2026.156 19:59:20 19:59:58 1745903 Kalas 03-003 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 0F GQ 2026.156 19:59:58 20:00:36 1745903 Kalas 03-003 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 0G GR 2026.156 20:00:36 20:01:14 1745903 Kalas 03-004 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 0H GS 2026.156 20:01:14 20:01:52 1745903 Kalas 03-004 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 0I GT 2026.156 20:01:52 20:02:30 1745903 Kalas 03-004 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 0J GU 2026.156 20:02:30 20:03:08 1745903 Kalas 03-004 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 0K GV 2026.156 20:03:08 20:03:46 1745903 Kalas 03-004 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 0L GW 2026.156 20:03:46 20:04:28 1745903 Kalas 03-004 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 0M GX 2026.156 20:07:28 20:08:06 1745903 Kalas 03-004 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 0N GZ 2026.156 20:08:06 20:08:44 1745903 Kalas 03-004 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 0O H0 2026.156 20:08:44 20:09:22 1745903 Kalas 03-005 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 0P H1 2026.156 20:09:22 20:10:00 1745903 Kalas 03-005 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 0Q H2 2026.156 20:10:00 20:10:38 1745903 Kalas 03-005 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 0R H3 2026.156 20:10:38 20:11:16 1745903 Kalas 03-005 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 0S H4 2026.156 20:11:16 20:11:54 1745903 Kalas 03-005 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 0T H5 2026.156 20:11:54 20:12:32 1745903 Kalas 03-005 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 0U H6 2026.156 20:12:32 20:13:10 1745903 Kalas 03-005 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 0V H7 2026.156 20:13:10 20:13:48 1745903 Kalas 03-005 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 0W H8 2026.156 20:13:48 20:14:30 1745903 Kalas 03-006 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 0X H9 2026.156 20:17:30 20:18:08 1745903 Kalas 03-006 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 0Y HB 2026.156 20:18:08 20:18:46 1745903 Kalas 03-006 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 0Z HC 2026.156 20:18:46 20:19:24 1745903 Kalas 03-006 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 10 HD 2026.156 20:19:24 20:20:02 1745903 Kalas 03-006 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 11 HE 2026.156 20:20:02 20:20:40 1745903 Kalas 03-006 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 12 HF 2026.156 20:20:40 20:21:18 1745903 Kalas 03-006 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 13 HG 2026.156 20:21:18 20:21:56 1745903 Kalas 03-006 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 14 HH 2026.156 20:21:56 20:22:34 1745903 Kalas 03-007 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 15 HI 2026.156 20:22:34 20:23:12 1745903 Kalas 03-007 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 16 HJ 2026.156 20:23:12 20:23:50 1745903 Kalas 03-007 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 17 HK 2026.156 20:23:50 20:24:38 1745903 Kalas 03-007 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 03 03 18 HL 28-May-2026 21:36:08 --- HST Observing Timeline Report for SMS: 261517A5 --- Page 22 SMS Start: 2026.151:23:40:00 (31-MAY-2026 23:40:00), End: 2026.158:17:50:00 (07-JUN-2026 17:50:00) Observation Set Principal Science Spectral Exposure Begin UT End UT SU Id Investigat Exp # Target Instrume Mode Apertures Elements Time(sec) OB AL EX O# -------- -------- -------- ------- ---------- ------ ---------- -------- ------ ------------ ------------ --------- -- -- -- -- 2026.156 20:02:56 20:07:20 17980BW Guzman BW-001 BIAS ACS/WFC ACCUM WFC F502N 0.00 BW 01 01 HM F660N 2026.156 20:07:20 20:07:30 17980BW Guzman BW-002 DARK ACS/WFC ACCUM WFC F502N 1040.00 BW 01 02 HN F660N 2026.156 20:50:41 20:55:05 17980BX Guzman BX-001 BIAS ACS/WFC ACCUM WFC F502N 0.00 BX 01 01 HR F660N 2026.156 20:55:05 20:55:15 17980BX Guzman BX-002 DARK ACS/WFC ACCUM WFC F502N 1040.00 BX 01 02 HS F660N 2026.156 21:15:02 21:20:17 1745904 Kalas 04-001 -ALF-PSA STIS/CCD ACQ F25ND5 MIRVIS 2.00 04 01 01 HU 2026.156 21:20:52 21:21:55 1745904 Kalas 04-002 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 01 HX 2026.156 21:21:55 21:22:33 1745904 Kalas 04-002 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 02 HY 2026.156 21:22:33 21:23:11 1745904 Kalas 04-002 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 03 HZ 2026.156 21:23:11 21:23:49 1745904 Kalas 04-002 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 04 I0 2026.156 21:23:49 21:24:27 1745904 Kalas 04-002 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 05 I1 2026.156 21:24:27 21:25:05 1745904 Kalas 04-002 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 06 I2 2026.156 21:25:05 21:25:43 1745904 Kalas 04-002 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 07 I3 2026.156 21:25:43 21:26:21 1745904 Kalas 04-002 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 08 I4 2026.156 21:26:21 21:26:59 1745904 Kalas 04-003 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 09 I5 2026.156 21:26:59 21:27:37 1745904 Kalas 04-003 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 0A I6 2026.156 21:27:37 21:28:19 1745904 Kalas 04-003 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 0B I7 2026.156 21:31:19 21:31:57 1745904 Kalas 04-003 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 0C I9 2026.156 21:31:57 21:32:35 1745904 Kalas 04-003 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 0D IA 2026.156 21:32:35 21:33:13 1745904 Kalas 04-003 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 0E IB 2026.156 21:33:13 21:33:51 1745904 Kalas 04-003 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 0F IC 2026.156 21:33:51 21:34:29 1745904 Kalas 04-003 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 0G ID 2026.156 21:34:29 21:35:07 1745904 Kalas 04-004 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 0H IE 2026.156 21:35:07 21:35:45 1745904 Kalas 04-004 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 0I IF 2026.156 21:35:45 21:36:23 1745904 Kalas 04-004 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 0J IG 2026.156 21:36:23 21:37:01 1745904 Kalas 04-004 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 0K IH 2026.156 21:37:01 21:37:39 1745904 Kalas 04-004 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 0L II 2026.156 21:37:39 21:38:21 1745904 Kalas 04-004 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 0M IJ 2026.156 21:41:21 21:41:59 1745904 Kalas 04-004 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 0N IL 2026.156 21:41:59 21:42:37 1745904 Kalas 04-004 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 0O IM 2026.156 21:42:37 21:43:15 1745904 Kalas 04-005 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 0P IN 2026.156 21:43:15 21:43:53 1745904 Kalas 04-005 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 0Q IO 2026.156 21:43:53 21:44:31 1745904 Kalas 04-005 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 0R IP 2026.156 21:44:31 21:45:09 1745904 Kalas 04-005 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 0S IQ 2026.156 21:45:09 21:45:47 1745904 Kalas 04-005 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 0T IR 2026.156 21:45:47 21:46:25 1745904 Kalas 04-005 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 0U IS 2026.156 21:46:25 21:47:03 1745904 Kalas 04-005 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 0V IT 2026.156 21:47:03 21:47:41 1745904 Kalas 04-005 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 0W IU 2026.156 21:47:41 21:48:23 1745904 Kalas 04-006 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 0X IV 2026.156 21:51:23 21:52:01 1745904 Kalas 04-006 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 0Y IX 2026.156 21:52:01 21:52:39 1745904 Kalas 04-006 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 0Z IY 2026.156 21:52:39 21:53:17 1745904 Kalas 04-006 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 10 IZ 28-May-2026 21:36:08 --- HST Observing Timeline Report for SMS: 261517A5 --- Page 23 SMS Start: 2026.151:23:40:00 (31-MAY-2026 23:40:00), End: 2026.158:17:50:00 (07-JUN-2026 17:50:00) Observation Set Principal Science Spectral Exposure Begin UT End UT SU Id Investigat Exp # Target Instrume Mode Apertures Elements Time(sec) OB AL EX O# -------- -------- -------- ------- ---------- ------ ---------- -------- ------ ------------ ------------ --------- -- -- -- -- 2026.156 21:53:17 21:53:55 1745904 Kalas 04-006 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 11 J0 2026.156 21:53:55 21:54:33 1745904 Kalas 04-006 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 12 J1 2026.156 21:54:33 21:55:11 1745904 Kalas 04-006 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 13 J2 2026.156 21:55:11 21:55:49 1745904 Kalas 04-006 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 14 J3 2026.156 21:55:49 21:56:27 1745904 Kalas 04-007 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 15 J4 2026.156 21:56:27 21:57:05 1745904 Kalas 04-007 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 16 J5 2026.156 21:57:05 21:57:43 1745904 Kalas 04-007 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 17 J6 2026.156 21:57:43 21:58:31 1745904 Kalas 04-007 -ALF-PSA STIS/CCD ACCUM A50CORON MIRVIS 1.20 04 03 18 J7 2026.156 21:26:47 21:31:11 17980BY Guzman BY-001 BIAS ACS/WFC ACCUM WFC F502N 0.00 BY 01 01 J8 F660N 2026.156 21:31:11 21:31:21 17980BY Guzman BY-002 DARK ACS/WFC ACCUM WFC F502N 1040.00 BY 01 02 J9 F660N 2026.156 21:57:10 22:01:34 17980BZ Guzman BZ-001 BIAS ACS/WFC ACCUM WFC F502N 0.00 BZ 01 01 JC F660N 2026.156 22:01:34 22:01:44 17980BZ Guzman BZ-002 DARK ACS/WFC ACCUM WFC F502N 1040.00 BZ 01 02 JD F660N 2026.156 22:27:22 22:31:59 1822811 Reinhart 11-001 DARK S/C DATA NONE 70.00 11 01 01 JH 2026.156 22:28:32 22:31:59 1822811 Reinhart 11-002 DARK S/C DATA NONE 70.00 11 02 01 JI 2026.156 22:29:42 22:31:59 1822811 Reinhart 11-003 DARK S/C DATA NONE 70.00 11 03 01 JJ 2026.156 22:30:54 22:31:59 1822811 Reinhart 11-004 DARK S/C DATA NONE 70.00 11 04 01 JK 2026.156 22:42:20 22:47:39 1745905 Kalas 05-001 -TET-PEG STIS/CCD ACQ F25ND5 MIRVIS 3.00 05 01 01 JL 2026.156 22:48:14 22:49:25 1745905 Kalas 05-002 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 01 JN 2026.156 22:49:25 22:50:11 1745905 Kalas 05-002 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 02 JO 2026.156 22:50:11 22:50:57 1745905 Kalas 05-002 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 03 JP 2026.156 22:50:57 22:51:43 1745905 Kalas 05-002 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 04 JQ 2026.156 22:51:43 22:52:29 1745905 Kalas 05-002 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 05 JR 2026.156 22:52:29 22:53:15 1745905 Kalas 05-002 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 06 JS 2026.156 22:53:15 22:54:01 1745905 Kalas 05-002 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 07 JT 2026.156 22:54:01 22:54:47 1745905 Kalas 05-003 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 08 JU 2026.156 22:54:47 22:55:33 1745905 Kalas 05-003 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 09 JV 2026.156 22:55:33 22:56:19 1745905 Kalas 05-003 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 0A JW 2026.156 22:56:19 22:57:09 1745905 Kalas 05-003 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 0B JX 2026.156 23:00:09 23:00:55 1745905 Kalas 05-003 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 0C JZ 2026.156 23:00:55 23:01:41 1745905 Kalas 05-003 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 0D K0 2026.156 23:01:41 23:02:27 1745905 Kalas 05-003 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 0E K1 2026.156 23:02:27 23:03:13 1745905 Kalas 05-004 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 0F K2 2026.156 23:03:13 23:03:59 1745905 Kalas 05-004 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 0G K3 2026.156 23:03:59 23:04:45 1745905 Kalas 05-004 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 0H K4 2026.156 23:04:45 23:05:31 1745905 Kalas 05-004 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 0I K5 2026.156 23:05:31 23:06:17 1745905 Kalas 05-004 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 0J K6 2026.156 23:06:17 23:07:03 1745905 Kalas 05-004 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 0K K7 2026.156 23:07:03 23:07:49 1745905 Kalas 05-004 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 0L K8 2026.156 23:07:49 23:08:39 1745905 Kalas 05-005 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 0M K9 2026.156 23:11:39 23:12:25 1745905 Kalas 05-005 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 0N KB 2026.156 23:12:25 23:13:11 1745905 Kalas 05-005 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 0O KC 28-May-2026 21:36:09 --- HST Observing Timeline Report for SMS: 261517A5 --- Page 24 SMS Start: 2026.151:23:40:00 (31-MAY-2026 23:40:00), End: 2026.158:17:50:00 (07-JUN-2026 17:50:00) Observation Set Principal Science Spectral Exposure Begin UT End UT SU Id Investigat Exp # Target Instrume Mode Apertures Elements Time(sec) OB AL EX O# -------- -------- -------- ------- ---------- ------ ---------- -------- ------ ------------ ------------ --------- -- -- -- -- 2026.156 23:13:11 23:13:57 1745905 Kalas 05-005 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 0P KD 2026.156 23:13:57 23:14:43 1745905 Kalas 05-005 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 0Q KE 2026.156 23:14:43 23:15:29 1745905 Kalas 05-005 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 0R KF 2026.156 23:15:29 23:16:15 1745905 Kalas 05-005 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 0S KG 2026.156 23:16:15 23:17:01 1745905 Kalas 05-006 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 0T KH 2026.156 23:17:01 23:17:47 1745905 Kalas 05-006 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 0U KI 2026.156 23:17:47 23:18:33 1745905 Kalas 05-006 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 0V KJ 2026.156 23:18:33 23:19:19 1745905 Kalas 05-006 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 0W KK 2026.156 23:19:19 23:20:09 1745905 Kalas 05-006 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 0X KL 2026.156 23:23:09 23:23:55 1745905 Kalas 05-006 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 0Y KN 2026.156 23:23:55 23:24:51 1745905 Kalas 05-006 -TET-PEG STIS/CCD ACCUM A50CORON MIRVIS 10.00 05 03 0Z KO 2026.157 00:00:00 00:02:24 179471G Pidgeon 1G-001 DARK WFC3/UVI ACCUM UVIS 0.50 1G 01 01 KQ 2026.157 00:00:00 00:27:55 179471G Pidgeon 1G-002 DARK S/C DATA NONE 4.00 1G 02 01 2026.157 00:02:24 00:04:44 179471G Pidgeon 1G-003 DARK WFC3/UVI ACCUM UVIS 0.50 1G 03 01 KS 2026.157 00:04:44 00:04:52 179471G Pidgeon 1G-004 DARK WFC3/UVI ACCUM UVIS 900.00 1G 04 01 KT 2026.157 00:00:00 00:35:46 1819757 Johnson 57-001 DARK S/C DATA NONE 295.00 57 01 01 2026.157 00:04:55 00:28:44 1819757 Johnson 57-002 DARK COS/FUV TIME-T PSA G130M 1330.00 57 01 02 KR 2026.157 00:33:32 00:38:09 1813011 Hernandez 11-001 ESO-113-45 STIS/CCD ACQ F28X50LP MIRVIS 4.00 11 01 01 KY 2026.157 00:33:32 01:26:50 1813011 Hernandez 11-002 NONE STIS MSMOFF 20.00 11 02 01 2026.157 00:41:29 00:41:55 1813011 Hernandez 11-003 ESO-113-45 STIS/MA1 ACCUM SL200 G140L 384.00 11 02 03 L1 2026.157 00:38:09 00:41:29 1813011 Hernandez 11-003 WAVEHITM STIS/MA1 ACCUM SL200 G140L 0.00 11 02 02 L0 2026.157 00:54:00 00:54:26 1813011 Hernandez 11-004 ESO-113-45 STIS/MA2 ACCUM SL200 G230L 185.00 11 02 05 L5 2026.157 00:50:14 00:54:00 1813011 Hernandez 11-004 WAVEHITM STIS/MA2 ACCUM SL200 G230L 0.00 11 02 04 L4 2026.157 00:33:32 01:26:50 1813011 Hernandez 11-005 NONE STIS MSMOFF 20.00 11 02 06 2026.157 01:01:09 01:02:30 1813011 Hernandez 11-006 ESO-113-45 STIS/CCD ACCUM SL200 G430L 27.00 11 03 02 L9 2026.157 01:04:58 01:06:35 1813011 Hernandez 11-006 ESO-113-45 STIS/CCD ACCUM SL200 G430L 27.00 11 05 01 LB 2026.157 01:06:35 01:07:55 1813011 Hernandez 11-006 ESO-113-45 STIS/CCD ACCUM SL200 G430L 27.00 11 06 01 LD 2026.157 00:57:53 01:01:09 1813011 Hernandez 11-006 WAVEHITM STIS/CCD ACCUM SL200 G430L 0.00 11 03 01 L8 2026.157 01:11:11 01:12:38 1813011 Hernandez 11-007 ESO-113-45 STIS/CCD ACCUM SL200 G750L 17.00 11 07 02 LF 2026.157 01:12:38 01:14:05 1813011 Hernandez 11-007 ESO-113-45 STIS/CCD ACCUM SL200 G750L 17.00 11 08 01 LG 2026.157 01:14:05 01:15:16 1813011 Hernandez 11-007 ESO-113-45 STIS/CCD ACCUM SL200 G750L 17.00 11 09 01 LI 2026.157 01:07:55 01:11:11 1813011 Hernandez 11-007 WAVEHITM STIS/CCD ACCUM SL200 G750L 0.00 11 07 01 LE 2026.157 01:17:49 01:19:31 1813011 Hernandez 11-008 CCDFLAT STIS/CCD ACCUM SL200 G750L 12.50 11 0B 01 LK 2026.157 01:19:31 01:21:14 1813011 Hernandez 11-008 CCDFLAT STIS/CCD ACCUM SL200 G750L 12.50 11 0B 02 LL 2026.157 00:27:57 00:45:48 179471H Pidgeon 1H-001 DARK-NM WFC3/UVI ACCUM UVIS F390M 900.00 1H 01 01 KW 2026.157 00:45:48 01:22:30 179471H Pidgeon 1H-001 DARK-NM WFC3/UVI ACCUM UVIS F390M 900.00 1H 02 01 L7 2026.157 00:36:21 01:12:07 1819758 Johnson 58-001 DARK S/C DATA NONE 295.00 58 01 01 2026.157 00:41:16 01:05:05 1819758 Johnson 58-002 DARK COS/FUV TIME-T PSA G130M 1330.00 58 01 02 KZ 2026.157 01:12:42 01:48:28 1819759 Johnson 59-001 DARK S/C DATA NONE 295.00 59 01 01 2026.157 01:17:37 01:41:26 1819759 Johnson 59-002 DARK COS/FUV TIME-T PSA G130M 1330.00 59 01 02 LH 2026.157 01:26:50 01:45:54 18155BZ Dallas BZ-001 DARK STIS/CCD ACCUM F28X50LP MIRVIS 1100.00 BZ 01 01 LO 2026.157 01:45:54 01:47:38 18155BZ Dallas BZ-002 DARK STIS/CCD ACCUM F28X50LP MIRVIS 60.00 BZ 01 02 LP 2026.157 01:47:38 01:49:26 18155BZ Dallas BZ-003 DARK STIS/CCD ACCUM F28X50LP MIRVIS 60.00 BZ 01 03 LQ 2026.157 01:55:22 02:14:26 18155C0 Dallas C0-001 DARK STIS/CCD ACCUM F28X50LP MIRVIS 1100.00 C0 01 01 LT 2026.157 02:14:26 02:16:10 18155C0 Dallas C0-002 DARK STIS/CCD ACCUM F28X50LP MIRVIS 60.00 C0 01 02 LU 28-May-2026 21:36:09 --- HST Observing Timeline Report for SMS: 261517A5 --- Page 25 SMS Start: 2026.151:23:40:00 (31-MAY-2026 23:40:00), End: 2026.158:17:50:00 (07-JUN-2026 17:50:00) Observation Set Principal Science Spectral Exposure Begin UT End UT SU Id Investigat Exp # Target Instrume Mode Apertures Elements Time(sec) OB AL EX O# -------- -------- -------- ------- ---------- ------ ---------- -------- ------ ------------ ------------ --------- -- -- -- -- 2026.157 02:16:10 02:18:15 18155C0 Dallas C0-003 DARK STIS/CCD ACCUM F28X50LP MIRVIS 60.00 C0 01 03 LV 2026.157 02:09:02 02:13:42 181987F Sahnow 7F-001 WD0308-565 COS/NUV ACQ/IM BOA MIRRORA 20.00 7F 01 01 LW 2026.157 02:14:36 02:17:17 181987F Sahnow 7F-002 WD0308-565 COS/NUV ACQ/IM BOA MIRRORA 20.00 7F 03 01 LY 2026.157 02:18:11 02:24:49 181987F Sahnow 7F-003 WD0308-565 COS/FUV TIME-T PSA G130M 200.00 7F 05 01 M1 2026.157 02:26:22 02:30:47 181987F Sahnow 7F-004 WD0308-565 COS/FUV TIME-T PSA G130M 200.00 7F 07 01 M3 2026.157 02:09:02 02:51:17 181987F Sahnow 7F-005 NONE COS ALIGN/ XAPER -16 0.00 7F 09 01 2026.157 02:32:42 02:38:14 181987F Sahnow 7F-006 WD0308-565 COS/FUV TIME-T PSA G130M 200.00 7F 0A 01 M5 2026.157 02:39:47 02:44:12 181987F Sahnow 7F-007 WD0308-565 COS/FUV TIME-T PSA G130M 200.00 7F 0C 01 M7 2026.157 02:09:02 02:51:17 181987F Sahnow 7F-008 NONE COS ALIGN/ XAPER 0 0.00 7F 0E 01 2026.157 02:46:29 02:47:13 1815860 Lothringer 60-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 60 01 01 M9 2026.157 02:47:13 02:47:57 1815860 Lothringer 60-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 60 01 02 MA 2026.157 02:47:57 02:48:41 1815860 Lothringer 60-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 60 01 03 MB 2026.157 02:48:41 02:49:25 1815860 Lothringer 60-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 60 01 04 MC 2026.157 02:49:25 02:50:09 1815860 Lothringer 60-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 60 01 05 MD 2026.157 02:50:09 02:50:53 1815860 Lothringer 60-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 60 01 06 ME 2026.157 02:50:53 02:51:41 1815860 Lothringer 60-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 60 01 07 MF 2026.157 02:54:34 02:55:18 1815860 Lothringer 60-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 60 01 08 MH 2026.157 02:55:18 02:56:02 1815860 Lothringer 60-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 60 01 09 MI 2026.157 02:56:02 02:56:46 1815860 Lothringer 60-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 60 01 0A MJ 2026.157 02:56:46 02:57:30 1815860 Lothringer 60-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 60 01 0B MK 2026.157 02:57:30 02:58:14 1815860 Lothringer 60-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 60 01 0C ML 2026.157 02:58:14 02:58:58 1815860 Lothringer 60-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 60 01 0D MM 2026.157 02:58:58 02:59:46 1815860 Lothringer 60-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 60 01 0E MN 2026.157 03:02:39 03:03:23 1815860 Lothringer 60-002 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 60 01 0F MP 2026.157 03:03:23 03:04:07 1815860 Lothringer 60-002 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 60 01 0G MQ 2026.157 03:04:07 03:04:51 1815860 Lothringer 60-002 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 60 01 0H MR 2026.157 03:04:51 03:05:38 1815860 Lothringer 60-003 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 60 01 0I MS 2026.157 03:05:38 03:06:25 1815860 Lothringer 60-003 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 60 01 0J MT 2026.157 03:06:25 03:07:12 1815860 Lothringer 60-004 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 60 01 0K MU 2026.157 03:07:12 03:08:03 1815860 Lothringer 60-004 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 60 01 0L MV 2026.157 03:39:13 03:44:47 1809801 Bonsor 01-001 WD2105-820 COS/NUV ACQ/IM PSA MIRRORB 5.00 01 01 01 MX 2026.157 03:45:41 04:08:23 1809801 Bonsor 01-002 WD2105-820 COS/NUV TIME-T PSA G185M 1150.00 01 03 01 MZ 2026.157 04:10:25 04:30:06 1809801 Bonsor 01-002 WD2105-820 COS/NUV TIME-T PSA G185M 1149.00 01 05 01 N7 2026.157 05:13:22 05:32:06 1809801 Bonsor 01-002 WD2105-820 COS/NUV TIME-T PSA G185M 1348.00 01 07 01 NO 2026.157 05:37:08 05:55:52 1809801 Bonsor 01-002 WD2105-820 COS/NUV TIME-T PSA G185M 1348.00 01 09 01 NR 2026.157 04:04:00 04:06:26 1795117 Huynh 17-001 TUNGSTEN WFC3/UVI ACCUM UVIS1-M512-S F645N 60.00 17 01 01 N0 2026.157 04:06:26 04:08:59 1795117 Huynh 17-002 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 25.00 17 01 02 N1 2026.157 04:08:59 04:11:34 1795117 Huynh 17-002 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 25.00 17 01 03 N2 2026.157 04:22:44 04:24:54 1795117 Huynh 17-003 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 2.00 17 01 04 N4 2026.157 04:24:54 04:32:10 1795117 Huynh 17-003 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 2.00 17 01 05 N5 2026.157 04:44:11 04:46:37 1795118 Huynh 18-001 TUNGSTEN WFC3/UVI ACCUM UVIS1-M512-S F645N 60.00 18 01 01 NA 2026.157 04:46:37 04:48:46 1795118 Huynh 18-002 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 0.50 18 01 02 NB 2026.157 04:48:46 04:50:57 1795118 Huynh 18-002 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 0.50 18 01 03 NC 2026.157 05:02:07 05:04:17 1795118 Huynh 18-003 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 1.50 18 01 04 NE 2026.157 05:04:17 05:06:29 1795118 Huynh 18-003 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 1.50 18 01 05 NF 28-May-2026 21:36:09 --- HST Observing Timeline Report for SMS: 261517A5 --- Page 26 SMS Start: 2026.151:23:40:00 (31-MAY-2026 23:40:00), End: 2026.158:17:50:00 (07-JUN-2026 17:50:00) Observation Set Principal Science Spectral Exposure Begin UT End UT SU Id Investigat Exp # Target Instrume Mode Apertures Elements Time(sec) OB AL EX O# -------- -------- -------- ------- ---------- ------ ---------- -------- ------ ------------ ------------ --------- -- -- -- -- 2026.157 05:17:35 05:19:47 1795118 Huynh 18-004 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 3.50 18 01 06 NH 2026.157 05:19:47 05:37:10 1795118 Huynh 18-004 TUNGSTEN WFC3/UVI ACCUM UVIS F645N 3.50 18 01 07 NI 2026.157 05:13:11 05:17:37 1798213 Cohen 13-001 TUNGSTEN ACS/WFC ACCUM WFC CLEAR1L 16.90 13 01 01 NJ F435W 2026.157 05:23:22 05:25:59 1798213 Cohen 13-001 TUNGSTEN ACS/WFC ACCUM WFC CLEAR1L 16.90 13 01 02 NL F435W 2026.157 05:31:44 05:48:18 1798213 Cohen 13-001 TUNGSTEN ACS/WFC ACCUM WFC CLEAR1L 16.90 13 01 03 NN F435W 2026.157 05:57:37 06:00:22 1797013 O'Connor 13-001 TUNGSTEN WFC3/UVI ACCUM UVIS F606W 4.90 13 01 01 NU 2026.157 06:00:22 06:00:56 1797013 O'Connor 13-002 TUNGSTEN WFC3/UVI ACCUM UVIS F438W 350.00 13 01 02 NV 2026.157 06:08:46 06:09:17 1797013 O'Connor 13-003 TUNGSTEN WFC3/UVI ACCUM UVIS F390W 525.00 13 01 03 NX 2026.157 06:20:02 06:22:49 1797013 O'Connor 13-004 TUNGSTEN WFC3/UVI ACCUM UVIS F814W 2.00 13 01 04 NZ 2026.157 06:09:14 06:45:00 181975A Johnson 5A-001 DARK S/C DATA NONE 295.00 5A 01 01 2026.157 06:14:09 06:37:58 181975A Johnson 5A-002 DARK COS/FUV TIME-T PSA G130M 1330.00 5A 01 02 O0 2026.157 06:35:26 06:39:52 1798214 Cohen 14-001 TUNGSTEN ACS/WFC ACCUM WFC F625W 3.10 14 01 01 O2 CLEAR2L 2026.157 06:45:37 06:48:01 1798214 Cohen 14-001 TUNGSTEN ACS/WFC ACCUM WFC F625W 3.10 14 01 02 O4 CLEAR2L 2026.157 06:53:46 07:27:04 1798214 Cohen 14-001 TUNGSTEN ACS/WFC ACCUM WFC F625W 3.10 14 01 03 O6 CLEAR2L 2026.157 06:48:00 06:56:40 1772449 Mo 49-001 47TUC WFC3/UVI ACCUM UVIS F300X 350.00 49 01 01 O9 2026.157 07:04:48 07:04:56 1772449 Mo 49-001 47TUC WFC3/UVI ACCUM UVIS F300X 350.00 49 03 01 OC 2026.157 07:21:04 07:21:12 1772449 Mo 49-001 47TUC WFC3/UVI ACCUM UVIS F300X 350.00 49 05 01 OH 2026.157 06:56:40 06:56:48 1772449 Mo 49-001 47TUC WFC3/UVI ACCUM UVIS F300X 350.00 49 02 01 OA 2026.157 07:12:56 07:13:04 1772449 Mo 49-001 47TUC WFC3/UVI ACCUM UVIS F300X 350.00 49 04 01 OE 2026.157 07:29:12 07:37:22 1772449 Mo 49-001 47TUC WFC3/UVI ACCUM UVIS F300X 350.00 49 06 01 OL 2026.157 06:45:35 07:25:58 181975B Johnson 5B-001 DARK S/C DATA NONE 295.00 5B 01 01 2026.157 06:50:30 07:18:56 181975B Johnson 5B-002 DARK COS/FUV TIME-T PSA G130M 1330.00 5B 01 02 O8 2026.157 07:26:33 08:02:19 181975C Johnson 5C-001 DARK S/C DATA NONE 295.00 5C 01 01 2026.157 07:31:28 07:55:17 181975C Johnson 5C-002 DARK COS/FUV TIME-T PSA G130M 1330.00 5C 01 02 OJ 2026.157 08:08:59 08:14:24 1807917 Sarbadhica 17-001 NGC6744-1 WFC3/UVI ACCUM UVIS-CENTER F438W 150.00 17 01 01 OO 2026.157 09:42:07 09:47:23 1807917 Sarbadhica 17-001 NGC6744-1 WFC3/UVI ACCUM UVIS-CENTER F438W 150.00 17 03 01 OR 2026.157 08:14:24 08:14:55 1807917 Sarbadhica 17-002 NGC6744-1 WFC3/UVI ACCUM UVIS-CENTER F275W 750.00 17 02 01 OP 2026.157 09:47:23 09:47:54 1807917 Sarbadhica 17-002 NGC6744-1 WFC3/UVI ACCUM UVIS-CENTER F275W 750.00 17 04 01 OS 2026.157 10:58:05 11:07:08 1801016 Proudfoot 16-001 2007JF43 WFC3/UVI ACCUM UVIS2 F350LP 350.00 16 01 02 OV 2026.157 11:07:08 11:07:16 1801016 Proudfoot 16-001 2007JF43 WFC3/UVI ACCUM UVIS2 F350LP 350.00 16 02 02 OW 2026.157 11:15:39 11:15:47 1801016 Proudfoot 16-001 2007JF43 WFC3/UVI ACCUM UVIS2 F350LP 350.00 16 03 02 OY 2026.157 11:24:10 11:32:10 1801016 Proudfoot 16-001 2007JF43 WFC3/UVI ACCUM UVIS2 F350LP 350.00 16 04 02 P0 2026.157 12:04:38 12:08:35 159627N Reinhart 7N-001 DARK S/C DATA NONE 60.00 7N 01 01 P2 2026.157 12:05:38 12:08:35 159627N Reinhart 7N-002 DARK S/C DATA NONE 60.00 7N 01 02 P3 2026.157 12:06:40 12:08:35 159627N Reinhart 7N-003 DARK S/C DATA NONE 60.00 7N 01 03 P4 2026.157 12:07:38 12:08:35 159627N Reinhart 7N-004 DARK S/C DATA NONE 60.00 7N 01 04 P5 2026.157 12:50:02 12:54:18 1825001 Diamond-Lo 01-001 UCAC4-425-132254 COS/NUV ACQ/IM PSA MIRRORA 13.00 01 01 01 P6 2026.157 12:59:26 13:52:36 1825001 Diamond-Lo 01-002 TRAPPIST-1 COS/FUV TIME-T PSA G130M 1000.00 01 05 01 PA 2026.157 13:53:22 13:54:47 1825001 Diamond-Lo 01-002 WAVE COS/FUV TIME-T WCA G130M 12.00 01 07 01 PC 28-May-2026 21:36:09 --- HST Observing Timeline Report for SMS: 261517A5 --- Page 27 SMS Start: 2026.151:23:40:00 (31-MAY-2026 23:40:00), End: 2026.158:17:50:00 (07-JUN-2026 17:50:00) Observation Set Principal Science Spectral Exposure Begin UT End UT SU Id Investigat Exp # Target Instrume Mode Apertures Elements Time(sec) OB AL EX O# -------- -------- -------- ------- ---------- ------ ---------- -------- ------ ------------ ------------ --------- -- -- -- -- 2026.157 12:55:12 12:58:32 1825001 Diamond-Lo 01-002 WAVE COS/FUV TIME-T WCA G130M 12.00 01 03 01 P8 2026.157 14:25:31 14:38:39 1825001 Diamond-Lo 01-003 TRAPPIST-1 COS/FUV TIME-T PSA G130M 720.00 01 0B 01 PI 2026.157 14:39:25 14:40:50 1825001 Diamond-Lo 01-003 WAVE COS/FUV TIME-T WCA G130M 12.00 01 0D 01 PK 2026.157 13:55:58 13:57:18 1825001 Diamond-Lo 01-003 WAVE COS/FUV TIME-T WCA G130M 12.00 01 09 01 PE 2026.157 14:43:22 14:56:30 1825001 Diamond-Lo 01-004 TRAPPIST-1 COS/FUV TIME-T PSA G130M 720.00 01 0H 01 PO 2026.157 14:41:26 14:42:46 1825001 Diamond-Lo 01-004 WAVE COS/FUV TIME-T WCA G130M 12.00 01 0F 01 PM 2026.157 15:59:30 16:14:40 1825001 Diamond-Lo 01-005 TRAPPIST-1 COS/FUV TIME-T PSA G130M 842.00 01 0L 01 PS 2026.157 16:15:26 16:16:51 1825001 Diamond-Lo 01-005 WAVE COS/FUV TIME-T WCA G130M 12.00 01 0N 01 PU 2026.157 15:30:14 15:31:39 1825001 Diamond-Lo 01-005 WAVE COS/FUV TIME-T WCA G130M 12.00 01 0J 01 PQ 2026.157 16:19:23 16:34:33 1825001 Diamond-Lo 01-006 TRAPPIST-1 COS/FUV TIME-T PSA G130M 842.00 01 0R 01 PY 2026.157 16:35:19 16:36:44 1825001 Diamond-Lo 01-006 WAVE COS/FUV TIME-T WCA G130M 12.00 01 0T 01 Q0 2026.157 16:17:27 16:18:47 1825001 Diamond-Lo 01-006 WAVE COS/FUV TIME-T WCA G130M 12.00 01 0P 01 PW 2026.157 17:32:02 17:36:19 1825001 Diamond-Lo 01-007 UCAC4-425-132254 COS/NUV ACQ/IM PSA MIRRORA 13.00 01 0V 01 Q2 2026.157 17:41:27 17:57:05 1825001 Diamond-Lo 01-008 TRAPPIST-1 COS/FUV TIME-T PSA G130M 870.00 01 0Z 01 Q6 2026.157 17:57:51 17:59:16 1825001 Diamond-Lo 01-008 WAVE COS/FUV TIME-T WCA G130M 12.00 01 11 01 Q8 2026.157 17:37:13 17:40:33 1825001 Diamond-Lo 01-008 WAVE COS/FUV TIME-T WCA G130M 12.00 01 0X 01 Q4 2026.157 18:01:48 18:44:44 1825001 Diamond-Lo 01-009 TRAPPIST-1 COS/FUV TIME-T PSA G130M 870.00 01 15 01 QC 2026.157 18:45:30 18:46:55 1825001 Diamond-Lo 01-009 WAVE COS/FUV TIME-T WCA G130M 12.00 01 17 01 QS 2026.157 17:59:52 18:01:12 1825001 Diamond-Lo 01-009 WAVE COS/FUV TIME-T WCA G130M 12.00 01 13 01 QA 2026.157 19:07:30 19:26:51 1825001 Diamond-Lo 01-010 TRAPPIST-1 COS/FUV TIME-T PSA G130M 1093.00 01 1B 01 QX 2026.157 19:27:37 19:29:02 1825001 Diamond-Lo 01-010 WAVE COS/FUV TIME-T WCA G130M 12.00 01 1D 01 QZ 2026.157 18:47:31 18:48:51 1825001 Diamond-Lo 01-010 WAVE COS/FUV TIME-T WCA G130M 12.00 01 19 01 QU 2026.157 19:31:34 19:50:55 1825001 Diamond-Lo 01-011 TRAPPIST-1 COS/FUV TIME-T PSA G130M 1093.00 01 1H 01 R3 2026.157 19:51:41 19:53:06 1825001 Diamond-Lo 01-011 WAVE COS/FUV TIME-T WCA G130M 12.00 01 1J 01 R5 2026.157 19:29:38 19:30:58 1825001 Diamond-Lo 01-011 WAVE COS/FUV TIME-T WCA G130M 12.00 01 1F 01 R1 2026.157 20:41:30 21:00:51 1825001 Diamond-Lo 01-012 TRAPPIST-1 COS/FUV TIME-T PSA G130M 1093.00 01 1N 01 R9 2026.157 21:01:37 21:03:02 1825001 Diamond-Lo 01-012 WAVE COS/FUV TIME-T WCA G130M 12.00 01 1P 01 RB 2026.157 20:19:14 20:20:34 1825001 Diamond-Lo 01-012 WAVE COS/FUV TIME-T WCA G130M 12.00 01 1L 01 R7 2026.157 21:05:34 21:24:55 1825001 Diamond-Lo 01-013 TRAPPIST-1 COS/FUV TIME-T PSA G130M 1093.00 01 1T 01 RF 2026.157 21:25:41 21:27:06 1825001 Diamond-Lo 01-013 WAVE COS/FUV TIME-T WCA G130M 12.00 01 1V 01 RH 2026.157 21:03:38 21:04:58 1825001 Diamond-Lo 01-013 WAVE COS/FUV TIME-T WCA G130M 12.00 01 1R 01 RD 2026.157 14:10:16 14:13:18 179721D Kuhn 1D-001 DARK-EARTH-CALIB WFC3/IR MULTIA IR F153M 102.97 1D 01 01 PG 2026.157 18:39:29 18:41:09 1816104 Rickman 04-001 NONE STIS/CCD ACCUM A50 MIRVIS 0.30 04 01 01 QD 2026.157 18:41:09 18:42:32 1816104 Rickman 04-001 NONE STIS/CCD ACCUM A50 MIRVIS 0.30 04 01 02 QE 2026.157 18:42:32 18:43:55 1816104 Rickman 04-001 NONE STIS/CCD ACCUM A50 MIRVIS 0.30 04 01 03 QF 2026.157 18:43:55 18:45:18 1816104 Rickman 04-001 NONE STIS/CCD ACCUM A50 MIRVIS 0.30 04 01 04 QG 2026.157 18:45:18 18:46:41 1816104 Rickman 04-001 NONE STIS/CCD ACCUM A50 MIRVIS 0.30 04 01 05 QH 2026.157 18:46:41 18:48:04 1816104 Rickman 04-001 NONE STIS/CCD ACCUM A50 MIRVIS 0.30 04 01 06 QI 2026.157 18:48:04 18:49:31 1816104 Rickman 04-001 NONE STIS/CCD ACCUM A50 MIRVIS 0.30 04 01 07 QJ 2026.157 18:52:24 18:53:47 1816104 Rickman 04-001 NONE STIS/CCD ACCUM A50 MIRVIS 0.30 04 01 08 QL 2026.157 18:53:47 18:55:10 1816104 Rickman 04-001 NONE STIS/CCD ACCUM A50 MIRVIS 0.30 04 01 09 QM 2026.157 18:55:10 18:56:33 1816104 Rickman 04-001 NONE STIS/CCD ACCUM A50 MIRVIS 0.30 04 01 0A QN 2026.157 18:56:33 18:57:56 1816104 Rickman 04-001 NONE STIS/CCD ACCUM A50 MIRVIS 0.30 04 01 0B QO 2026.157 18:57:56 18:59:19 1816104 Rickman 04-001 NONE STIS/CCD ACCUM A50 MIRVIS 0.30 04 01 0C QP 2026.157 18:59:19 19:01:43 1816104 Rickman 04-002 NONE STIS/CCD ACCUM A50CORON MIRVIS 0.30 04 01 0D QQ 28-May-2026 21:36:10 --- HST Observing Timeline Report for SMS: 261517A5 --- Page 28 SMS Start: 2026.151:23:40:00 (31-MAY-2026 23:40:00), End: 2026.158:17:50:00 (07-JUN-2026 17:50:00) Observation Set Principal Science Spectral Exposure Begin UT End UT SU Id Investigat Exp # Target Instrume Mode Apertures Elements Time(sec) OB AL EX O# -------- -------- -------- ------- ---------- ------ ---------- -------- ------ ------------ ------------ --------- -- -- -- -- 2026.157 22:13:05 22:18:16 1753403 Rockcliffe 03-001 V-AU-MIC STIS/CCD ACQ F25ND3 MIRVIS 0.10 03 01 01 RJ 2026.157 22:18:51 22:57:23 1753403 Rockcliffe 03-002 V-AU-MIC STIS/MA1 TIME-T S200X200 E140M 2207.00 03 03 01 RL 2026.157 23:00:17 23:01:42 1753403 Rockcliffe 03-003 WAVELINE STIS/MA1 ACCUM S200X200 E140M 0.00 03 05 01 RN 2026.157 23:45:37 00:29:55 1753403 Rockcliffe 03-004 V-AU-MIC STIS/MA1 TIME-T S200X200 E140M 2624.00 03 07 01 RP 2026.158 00:32:49 00:34:14 1753403 Rockcliffe 03-005 WAVELINE STIS/MA1 ACCUM S200X200 E140M 0.00 03 09 01 RX 2026.158 00:00:00 00:01:19 1794579 Pidgeon 79-001 TUNGSTEN WFC3/UVI ACCUM UVIS F475X 1.00 79 01 01 RQ 2026.158 00:01:19 00:05:25 1794579 Pidgeon 79-002 TUNGSTEN WFC3/UVI ACCUM UVIS F475X 200.00 79 01 02 RR 2026.158 00:05:25 00:06:29 1794579 Pidgeon 79-003 TUNGSTEN WFC3/UVI ACCUM UVIS F475X 1.00 79 01 03 RS 2026.158 00:08:50 00:26:41 179471I Pidgeon 1I-001 DARK-NM WFC3/UVI ACCUM UVIS F547M 900.00 1I 01 01 RU 2026.158 00:26:41 00:44:02 179471I Pidgeon 1I-001 DARK-NM WFC3/UVI ACCUM UVIS F547M 900.00 1I 02 01 RV 2026.158 00:47:21 01:06:25 18155C1 Dallas C1-001 DARK STIS/CCD ACCUM F28X50LP MIRVIS 1100.00 C1 01 01 S0 2026.158 01:06:25 01:08:09 18155C1 Dallas C1-002 DARK STIS/CCD ACCUM F28X50LP MIRVIS 60.00 C1 01 02 S1 2026.158 01:08:09 01:09:57 18155C1 Dallas C1-003 DARK STIS/CCD ACCUM F28X50LP MIRVIS 60.00 C1 01 03 S2 2026.158 00:55:08 01:12:59 179471J Pidgeon 1J-001 DARK-NM WFC3/UVI ACCUM UVIS F373N 900.00 1J 01 01 S3 2026.158 01:12:59 01:30:20 179471J Pidgeon 1J-001 DARK-NM WFC3/UVI ACCUM UVIS F373N 900.00 1J 02 01 SA 2026.158 01:07:07 01:11:33 1798215 Cohen 15-001 TUNGSTEN ACS/WFC ACCUM WFC CLEAR1L 2.90 15 01 01 S4 F814W 2026.158 01:17:18 01:19:41 1798215 Cohen 15-001 TUNGSTEN ACS/WFC ACCUM WFC CLEAR1L 2.90 15 01 02 S6 F814W 2026.158 01:25:26 01:43:06 1798215 Cohen 15-001 TUNGSTEN ACS/WFC ACCUM WFC CLEAR1L 2.90 15 01 03 S8 F814W 2026.158 01:15:53 01:34:57 18155C2 Dallas C2-001 DARK STIS/CCD ACCUM F28X50LP MIRVIS 1100.00 C2 01 01 SB 2026.158 01:34:57 01:36:41 18155C2 Dallas C2-002 DARK STIS/CCD ACCUM F28X50LP MIRVIS 60.00 C2 01 02 SC 2026.158 01:36:41 01:41:30 18155C2 Dallas C2-003 DARK STIS/CCD ACCUM F28X50LP MIRVIS 60.00 C2 01 03 SD 2026.158 01:47:26 01:48:10 1815861 Lothringer 61-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 61 01 01 SH 2026.158 01:48:10 01:48:54 1815861 Lothringer 61-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 61 01 02 SI 2026.158 01:48:54 01:49:38 1815861 Lothringer 61-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 61 01 03 SJ 2026.158 01:49:38 01:50:22 1815861 Lothringer 61-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 61 01 04 SK 2026.158 01:50:22 01:51:06 1815861 Lothringer 61-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 61 01 05 SL 2026.158 01:51:06 01:51:50 1815861 Lothringer 61-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 61 01 06 SM 2026.158 01:51:50 01:52:38 1815861 Lothringer 61-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 61 01 07 SN 2026.158 01:55:31 01:56:15 1815861 Lothringer 61-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 61 01 08 SP 2026.158 01:56:15 01:56:59 1815861 Lothringer 61-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 61 01 09 SQ 2026.158 01:56:59 01:57:43 1815861 Lothringer 61-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 61 01 0A SR 2026.158 01:57:43 01:58:27 1815861 Lothringer 61-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 61 01 0B SS 2026.158 01:58:27 01:59:11 1815861 Lothringer 61-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 61 01 0C ST 2026.158 01:59:11 01:59:55 1815861 Lothringer 61-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 61 01 0D SU 2026.158 01:59:55 02:00:43 1815861 Lothringer 61-001 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 61 01 0E SV 2026.158 02:03:36 02:04:20 1815861 Lothringer 61-002 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 61 01 0F SX 2026.158 02:04:20 02:05:04 1815861 Lothringer 61-002 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 61 01 0G SY 2026.158 02:05:04 02:05:48 1815861 Lothringer 61-002 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 61 01 0H SZ 2026.158 02:05:48 02:06:35 1815861 Lothringer 61-003 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 61 01 0I T0 2026.158 02:06:35 02:07:22 1815861 Lothringer 61-003 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 61 01 0J T1 2026.158 02:07:22 02:08:09 1815861 Lothringer 61-004 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 61 01 0K T2 2026.158 02:08:09 02:09:00 1815861 Lothringer 61-004 BIAS STIS/CCD ACCUM F28X50LP MIRVIS 0.00 61 01 0L T3 28-May-2026 21:36:10 --- HST Observing Timeline Report for SMS: 261517A5 --- Page 29 SMS Start: 2026.151:23:40:00 (31-MAY-2026 23:40:00), End: 2026.158:17:50:00 (07-JUN-2026 17:50:00) Observation Set Principal Science Spectral Exposure Begin UT End UT SU Id Investigat Exp # Target Instrume Mode Apertures Elements Time(sec) OB AL EX O# -------- -------- -------- ------- ---------- ------ ---------- -------- ------ ------------ ------------ --------- -- -- -- -- 2026.158 02:28:41 02:37:47 1803435 Saldana-Lo 35-001 J144010+461937 ACS/WFC ACCUM WFC1-MRAMP CLEAR1L 300.00 35 01 01 T5 FR656N 2026.158 02:37:47 02:37:59 1803435 Saldana-Lo 35-002 J144010+461937 ACS/WFC ACCUM WFC1-MRAMP CLEAR1L 340.00 35 02 01 T6 FR656N 2026.158 02:46:55 02:47:43 1803435 Saldana-Lo 35-003 J144010+461937 ACS/WFC ACCUM WFC1-IRAMP CLEAR1L 340.00 35 03 01 T8 FR853N 2026.158 02:55:55 02:56:07 1803435 Saldana-Lo 35-004 J144010+461937 ACS/WFC ACCUM WFC1-IRAMP CLEAR1L 340.00 35 04 01 TA FR853N 2026.158 03:04:19 03:04:31 1803435 Saldana-Lo 35-005 J144010+461937 ACS/WFC ACCUM WFC1-IRAMP CLEAR1L 340.00 35 05 01 TC FR853N 2026.158 03:19:36 03:24:02 1798216 Cohen 16-001 TUNGSTEN ACS/WFC ACCUM WFC F850LP 4.50 16 01 01 TF CLEAR2L 2026.158 03:29:47 03:32:12 1798216 Cohen 16-001 TUNGSTEN ACS/WFC ACCUM WFC F850LP 4.50 16 01 02 TH CLEAR2L 2026.158 03:37:57 03:40:37 1798216 Cohen 16-001 TUNGSTEN ACS/WFC ACCUM WFC F850LP 4.50 16 01 03 TJ CLEAR2L 2026.158 04:45:59 04:50:21 1799309 Theissen 09-001 2MASS-J13550323-8258375 WFC3/UVI ACCUM UVIS1 F775W 88.00 09 01 01 TL 2026.158 04:50:21 04:50:31 1799309 Theissen 09-002 2MASS-J13550323-8258375 WFC3/UVI ACCUM UVIS1 F775W 452.00 09 02 02 TM 2026.158 05:00:41 05:00:51 1799309 Theissen 09-003 2MASS-J13550323-8258375 WFC3/UVI ACCUM UVIS1 F775W 452.00 09 03 02 TO 2026.158 05:11:01 05:11:11 1799309 Theissen 09-004 2MASS-J13550323-8258375 WFC3/UVI ACCUM UVIS1 F775W 452.00 09 04 02 TQ 2026.158 05:21:21 05:21:31 1799309 Theissen 09-005 2MASS-J13550323-8258375 WFC3/UVI ACCUM UVIS1 F775W 451.00 09 05 02 TS 2026.158 05:31:11 05:35:26 1799309 Theissen 09-006 2MASS-J13550323-8258375 WFC3/UVI ACCUM UVIS1 F606W 88.00 09 06 01 TU 2026.158 06:20:27 06:25:57 181994A Hernandez 4A-001 WD0308-565 COS/NUV ACQ/IM BOA MIRRORA 45.00 4A 01 01 TW 2026.158 06:34:09 06:38:44 181994A Hernandez 4A-002 WD0308-565 COS/FUV TIME-T PSA G130M 346.00 4A 05 01 U0 2026.158 06:26:51 06:33:14 181994A Hernandez 4A-002 WAVE COS/FUV TIME-T WCA G130M 142.00 4A 03 01 TY 2026.158 06:46:25 06:50:40 181994A Hernandez 4A-003 WD0308-565 COS/FUV TIME-T PSA G130M 326.00 4A 09 01 U4 2026.158 06:54:13 06:55:38 181994A Hernandez 4A-003 WAVE COS/FUV TIME-T WCA G130M 12.00 4A 0B 01 U6 2026.158 06:42:17 06:45:49 181994A Hernandez 4A-003 WAVE COS/FUV TIME-T WCA G130M 12.00 4A 07 01 U2 2026.158 07:00:52 07:04:38 181994A Hernandez 4A-004 WD0308-565 COS/FUV TIME-T PSA G130M 297.00 4A 0F 01 UA 2026.158 07:08:21 07:10:26 181994A Hernandez 4A-004 WAVE COS/FUV TIME-T WCA G130M 52.00 4A 0H 01 UC 2026.158 06:56:14 06:59:47 181994A Hernandez 4A-004 WAVE COS/FUV TIME-T WCA G130M 52.00 4A 0D 01 U8 2026.158 07:22:25 07:25:27 179721E Kuhn 1E-001 DARK-EARTH-CALIB WFC3/IR MULTIA IR F153M 102.97 1E 01 01 UE 2026.158 08:48:24 08:51:58 1811618 Wang 18-001 J1540+355 WFC3/IR MULTIA IRSUB512 F160W 174.37 18 01 01 UG 2026.158 08:58:44 09:02:18 1811618 Wang 18-001 J1540+355 WFC3/IR MULTIA IRSUB512 F160W 174.37 18 02 01 UK 2026.158 09:09:04 09:09:40 1811618 Wang 18-001 J1540+355 WFC3/IR MULTIA IRSUB512 F160W 174.37 18 03 01 UO 2026.158 09:19:24 09:22:58 1811618 Wang 18-001 J1540+355 WFC3/IR MULTIA IRSUB512 F160W 174.37 18 04 01 UT 2026.158 08:51:58 08:55:11 1811618 Wang 18-001 J1540+355 WFC3/IR MULTIA IRSUB512 F160W 174.37 18 01 02 UH 2026.158 09:02:18 09:02:33 1811618 Wang 18-001 J1540+355 WFC3/IR MULTIA IRSUB512 F160W 174.37 18 02 02 UL 2026.158 09:12:38 09:15:51 1811618 Wang 18-001 J1540+355 WFC3/IR MULTIA IRSUB512 F160W 174.37 18 03 02 UQ 2026.158 09:22:58 09:26:11 1811618 Wang 18-001 J1540+355 WFC3/IR MULTIA IRSUB512 F160W 174.37 18 04 02 UU 2026.158 08:55:11 08:55:25 1811618 Wang 18-001 J1540+355 WFC3/IR MULTIA IRSUB512 F160W 174.37 18 01 03 UI 2026.158 09:05:31 09:09:04 1811618 Wang 18-001 J1540+355 WFC3/IR MULTIA IRSUB512 F160W 174.37 18 02 03 UN 2026.158 09:15:51 09:16:06 1811618 Wang 18-001 J1540+355 WFC3/IR MULTIA IRSUB512 F160W 174.37 18 03 03 UR 2026.158 09:26:11 10:22:03 1811618 Wang 18-001 J1540+355 WFC3/IR MULTIA IRSUB512 F160W 174.37 18 04 03 UV 2026.158 10:22:03 10:22:43 1811618 Wang 18-002 J1540+355 WFC3/UVI ACCUM UVIS1-2K2A-S F621M 290.00 18 05 01 UW 28-May-2026 21:36:10 --- HST Observing Timeline Report for SMS: 261517A5 --- Page 30 SMS Start: 2026.151:23:40:00 (31-MAY-2026 23:40:00), End: 2026.158:17:50:00 (07-JUN-2026 17:50:00) Observation Set Principal Science Spectral Exposure Begin UT End UT SU Id Investigat Exp # Target Instrume Mode Apertures Elements Time(sec) OB AL EX O# -------- -------- -------- ------- ---------- ------ ---------- -------- ------ ------------ ------------ --------- -- -- -- -- 2026.158 10:34:05 10:34:13 1811618 Wang 18-002 J1540+355 WFC3/UVI ACCUM UVIS1-2K2A-S F621M 290.00 18 07 01 UZ 2026.158 10:45:35 10:53:33 1811618 Wang 18-002 J1540+355 WFC3/UVI ACCUM UVIS1-2K2A-S F621M 290.00 18 09 01 V2 2026.158 10:57:05 11:05:03 1811618 Wang 18-002 J1540+355 WFC3/UVI ACCUM UVIS1-2K2A-S F621M 290.00 18 0B 01 V4 2026.158 10:30:33 10:34:05 1811618 Wang 18-003 J1540+355 WFC3/UVI ACCUM UVIS1-2K2A-S F621M 20.00 18 06 01 UY 2026.158 10:42:03 10:45:35 1811618 Wang 18-003 J1540+355 WFC3/UVI ACCUM UVIS1-2K2A-S F621M 20.00 18 08 01 V1 2026.158 10:53:33 10:57:05 1811618 Wang 18-003 J1540+355 WFC3/UVI ACCUM UVIS1-2K2A-S F621M 20.00 18 0A 01 V3 2026.158 11:05:03 11:08:37 1811618 Wang 18-003 J1540+355 WFC3/UVI ACCUM UVIS1-2K2A-S F621M 20.00 18 0C 01 V5 2026.158 12:01:05 12:03:40 18112H4 Wolf H4-001 J1729+3832 WFC3/IR MULTIA GRISM1024 F105W 113.04 H4 01 01 V7 2026.158 12:03:40 12:22:54 18112H4 Wolf H4-002 J1729+3832 WFC3/IR MULTIA GRISM1024 G102 1103.03 H4 01 02 V8 2026.158 12:22:54 12:23:34 18112H4 Wolf H4-002 J1729+3832 WFC3/IR MULTIA GRISM1024 G102 1103.03 H4 02 01 V9 2026.158 13:40:36 13:45:58 1777690 Terry 90-001 GBTDS-HD47 ACS/WFC ACCUM WFCENTER CLEAR1L 50.00 90 01 01 VC F814W 2026.158 13:40:36 13:45:58 1777690 Terry 90-002 ANY WFC3/UVI ACCUM UVIS-CENTER F814W 100.00 90 01 02 VD 2026.158 13:45:58 13:46:08 1777690 Terry 90-003 GBTDS-HD47 ACS/WFC ACCUM WFCENTER CLEAR1L 340.00 90 02 01 VE F814W 2026.158 13:45:58 13:53:58 1777690 Terry 90-004 ANY WFC3/UVI ACCUM UVIS-CENTER F814W 340.00 90 02 02 VF 2026.158 14:05:04 14:06:09 1777690 Terry 90-005 GBTDS-HD47 ACS/WFC ACCUM WFCENTER F606W 340.00 90 04 01 VI CLEAR2L 2026.158 14:05:04 14:14:44 1777690 Terry 90-006 ANY WFC3/UVI ACCUM UVIS-CENTER F606W 375.00 90 04 02 VJ 2026.158 14:14:44 14:14:54 1777690 Terry 90-007 GBTDS-HD47 ACS/WFC ACCUM WFCENTER F606W 340.00 90 05 01 VL CLEAR2L 2026.158 14:14:44 14:22:44 1777690 Terry 90-008 ANY WFC3/UVI ACCUM UVIS-CENTER F606W 330.00 90 05 02 VM 2026.158 15:10:52 15:19:55 1801045 Proudfoot 45-001 2013HU156 WFC3/UVI ACCUM UVIS2 F350LP 350.00 45 01 02 VQ 2026.158 15:19:55 15:20:03 1801045 Proudfoot 45-001 2013HU156 WFC3/UVI ACCUM UVIS2 F350LP 350.00 45 02 02 VR 2026.158 15:28:26 15:28:34 1801045 Proudfoot 45-001 2013HU156 WFC3/UVI ACCUM UVIS2 F350LP 350.00 45 03 02 VT 2026.158 15:36:57 15:44:57 1801045 Proudfoot 45-001 2013HU156 WFC3/UVI ACCUM UVIS2 F350LP 350.00 45 04 02 VV 2026.158 16:43:21 16:45:56 18112K4 Wolf K4-001 J1738+4006 WFC3/IR MULTIA GRISM1024 F105W 113.04 K4 01 01 VX 2026.158 16:45:56 17:05:10 18112K4 Wolf K4-002 J1738+4006 WFC3/IR MULTIA GRISM1024 G102 1103.03 K4 01 02 VY 2026.158 17:05:10 17:05:50 18112K4 Wolf K4-002 J1738+4006 WFC3/IR MULTIA GRISM1024 G102 1103.03 K4 02 01 VZ 28-May-2026 21:36:10 --- HST Observing Timeline Report --- Page 1 Proposal Titles for SMS: 261517A5 Prop Prog Principal Id Id Investigator Proposal Title ----- ---- --------------- ---------------------------------------------------------------------- 15601 DU7 Sahnow COS FUV DCE Memory Dump 15962 EGS Reinhart Routine EEPROM dumps for ACS, COS, STIS, and WFC3 17459 F9A Kalas High-resolution imaging of Fomalhaut's newly discovered intermediate dust b 17534 F7B Rockcliffe A young burping planet: characterizing the variable atmospheric escape of t 17612 FBW Sing JWST's Exoplanet Grand Tour Spectroscopic Survey 17724 FFZ Mo An ultraviolet time-domain survey of the compact binary population in 47 Tu 17769 FEG Pavlov The UVOIR portrait of PSR J0030+0451, the key millisecond pulsar 17776 FHL Terry A Precursor Survey of the Roman Galactic Bulge Time Domain Fields 17804 FHJ Loyd STELa: Survey of Transiting Exoplanets in Lyman-alpha 17818 FEL Morgan Structure of the Extreme-UV Continuum Source in the Heavily Microlensed Qua 17875 FIX McDonald SPT-CLJ2223-5015: RUNAWAY COOLING IN THE ABSENCE OF FEEDBACK? 17945 FLX Pidgeon WFC3 UVIS Bowtie Monitor 17947 FLV Pidgeon WFC3 UVIS CCD Daily Monitor Part 2 17949 FL8 Rivera WFC3 UVIS CCD Unflashed (CTE) Monitor 17950 FKU Pidgeon WFC3 UVIS Post-flash Monitor 17951 FKZ Huynh WFC3 UVIS CCD Gain Stability 17954 FLO O'Connor WFC3 UVIS Traps with Charge Injection 17956 FKT Green WFC3 IR Dark Monitor 17958 FL0 Huynh WFC3 IR Gain Monitor 17969 FLQ Kuhn WFC3 UVIS Pixel-to-Pixel QE Variations via Internal Flats 17970 FL1 O'Connor WFC3 UVIS Internal Flats 17972 FLH Kuhn WFC3 CSM Monitor with Earth Flats 17978 FKX Guzman CCD Daily Monitor (Part 2) 17980 FKW Guzman CCD Hot Pixel Annealing 17982 FLG Cohen ACS Internal Flat Fields 17993 FNF Theissen It Takes Two Planets to Tango: Constraining the Orbit of a Planetary-Mass B 18009 FQ1 Marques-Chaves Final Chance to Map the Spatial Distributions of Lyman-Continuum and Lyman- 18010 FMR Proudfoot A Search For The Moons of Mid-Sized TNOs 18034 FQC Saldana-Lopez Spatially resolving the conditions for ionizing radiation escape in galaxie 18037 FPK Do Search for massive sub-kpc dual active galactic nuclei in the most luminous 18050 FPH Bish Reaping the Whirlwind: Accretion & Outflow in the Inner Milky Way 18051 FMM Hack Evolution of the Newly Discovered Jet in the Symbiotic System HM Sge 18058 FLY Legnardi The chemical composition of pristine gas through first-population stars in 18061 FMY Jones Hubble Census of Nearby Satellites 18062 FLZ Jones Star formation history of the lowest baryonic mass star-forming galaxy know 18063 FNN Sahu UV Spectroscopy of the Stingray Nebula Central Star: Stellar Evolution in R 18065 FNO Harper Alpha-1 Hercules (M5 Ib-II): Wind Acceleration from an Oxygen-rich AGB sta 18068 FNR Kallivayalil Dynamically Mapping the Satellite Galaxies in the Outer Halo of the Milky W 18069 FL6 Pierel Requiem's Return: Precision cosmology from a decade-delayed, strongly-lense 18079 FPV Sarbadhicary An HST Near-UV SNAP + Roman survey of extended star-forming disks in nearby 18088 FQK Berg A New Benchmark Set of Massive Stars Spectra to Distinguish Wolf-Rayet Star 18098 FPB Bonsor Is Sulfur stored in the refractory or volatile component of planetary build 18112 FPT Wolf Beyond the Quasar Redshift Frontier: Uncovering Rapidly Accreting Supermass 18116 FPZ Wang Improving BH Scaling Relations in High-Mass AGNs: Insights from HST Imaging 18120 FOG Yamaguchi A COS Legacy Survey of Gaia DR3 WD+MS binaries 28-May-2026 21:36:10 --- HST Observing Timeline Report --- Page 2 Proposal Titles for SMS: 261517A5 Prop Prog Principal Id Id Investigator Proposal Title ----- ---- --------------- ---------------------------------------------------------------------- 18130 FMZ Hernandez Santi Understanding AGN variability with Fairall 9: a legacy spectroscopic echo-m 18155 FPC Dallas STIS CCD Dark Monitor Part 2 18158 FQN Lothringer STIS CCD Bias and Read Noise Monitor Part 2 18161 FQR Rickman STIS CCD Imaging Flat-Field Monitor 18171 FO1 Brown STIS NUV MAMA Dark Monitor 18197 FR8 Johnson Cycle 33 FUV Detector Dark Monitor 18198 FRK Sahnow Cycle 33 COS FUV Detector Gain Maps 18199 FR7 Hernandez Cycle 33 COS FUV Spectroscopic Sensitivity Monitor 18202 FR6 Dos Santos Cycle 33 COS FUV Split-Wavecal Calibration Program 18228 FSI Reinhart ACS/COS/STIS/WFC3 NED History Log Collection 18231 FSH Som Verification of Target Placement for COS at LP11 18246 FSM Som Verification of Target Placement for COS at LP12 18250 FSZ Diamond-Lowe Mapping an M dwarf flare across time and color: simultaneous observations i