18258( 3) - 30-Sep-2026 17:30:44 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 18258 Version: 3 Check-in Time: 30-Sep-2026 17:30:44 STScI Edit Number: 1 Title Rocky Worlds DDT: HST Observations of TOI-244 ------------------------------------------------------------------------------------ Type Cycle GO/DD 33 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Hannah Diamond-Lowe Space Telescope Science Institute Y CoI: Dr. Nestor Espinoza Space Telescope Science Institute N CoI: Dr. John Henry Debes Space Telescope Science Institute - ESA - N JWST CoI: Dr. Leonardo Dos Santos Space Telescope Science Institute N CoI: Dr. Munazza Alam Space Telescope Science Institute N CoI: Rachel Cooper Space Telescope Science Institute N CoI: Tyler Baines Space Telescope Science Institute N CoI: Dr. Taylor James Bell Space Telescope Science Institute - ESA - N JWST CoI: Dr. Brett M. Morris Space Telescope Science Institute N CoI: Dr. Leonardo Ubeda Space Telescope Science Institute N CoI: Dr. Ian Wong Space Telescope Science Institute N CoI: Dr. Joshua D. Lothringer Space Telescope Science Institute N CoI: Ms. Misty Cracraft Space Telescope Science Institute N CoI: Dr. Joseph Filippazzo Space Telescope Science Institute N CoI: Mr. Douglas Ray Long Space Telescope Science Institute N CoI: Dr. Achrene Dyrek Space Telescope Science Institute - JWST N CoI: Dr. Elena Manjavacas Space Telescope Science Institute - ESA - N JWST CoI: Mees Fix Space Telescope Science Institute N CoI: Dr. Christopher Britt Space Telescope Science Institute N CoI: Hannah Braun Space Telescope Science Institute N CoI: Ryan Kunzer Space Telescope Science Institute N CoI: Kyle Conroy Space Telescope Science Institute N CoI: Dr. Mercedes Lopez-Morales Space Telescope Science Institute N CoI: Dr. I. Neill Reid Space Telescope Science Institute N ------------------------------------------------------------------------------------ Abstract Rocky Worlds is a joint JWST and HST Director's Discretionary Program designed to implement the top recommendations from the Working Group on Strategic Exoplanet Initiatives with HST and JWST. The HST side of the Rocky Worlds DDT focuses on ultraviolet (UV) characterization of the nearby M-dwarf hosts of the rocky planets observed with JWST. We will use COS and STIS to measure the UV to blue-optical spectra of these stars, including UV flare monitoring and measuring the wings of the Ly-alpha profile where appropriate. With these observations we will constrain the high-energy output of these host M dwarfs in the UV, which can be applied to planetary models of atmospheric escape, as well as photochemistry if a planetary atmosphere is present. Complementary observations and analysis to fill in the rest of the M-dwarf panchromatic spectra, from the X-ray to the infrared, are encouraged. Each M-dwarf planet host observed by HST in the Rocky Worlds DDT program has its own 18258( 3) - 30-Sep-2026 17:30:44 - [ 2] Program ID. The observations in this program will focus on TOI-244 ------------------------------------------------------------------------------------ Observations Description ------------------------ HST observations of TOI-244. 12 orbits of flare monitoring using G130M/1222. 12 orbits of FUV line coverage with G160M/1533 which provides complete coverage with G130M/1222 of 1070-1710 Angstroms. We obtain NUV/Vis low resolution spectroscopy with STIS G230L, G430L, and G750L and the 52x0.2 slit in order to construct an accurate stellar SED in 2 orbits. We also observe Lyman alpha in the G140M/1222 mode in 6 orbits. All UV observations are obtained in time-tag mode to allow for light curves to be generated in the case of a flare or serendipitous transit. For all observation SNR calculations we used archival spectroscopy of GJ 436, with a radius and distance scaled SED. ------------------------------------------------------------------------------------ 18258( 3) - 30-Sep-2026 17:30:44 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 TOI-244 STAR, EXTRA-SOLAR RA=00H42M16.7344S +/- J2000 V = 12.693 PLANET, M V-IV 0.000019403474", DEC=-36D43'4.68" +/- 0.000018358102" Reference Frame: ICRS Extended: NO Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. SIMBAD listed proper motion for this target. When retrieving targets with PM from SIMBAD, APT requests the coordinates be calculated with an epoch of the year 2000. Do not modify this epoch. Always review coordinates using the Target Confirmation tool, which graphically displays the PM. Updated by RWDDT HST Scheduling Lead John Debes and Team Deputy Lead Hannah Diamond-Lowe. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2016 -0.012881094425103302 0.045632 0.0452998 ------------------------------------------------------------------------------------------------------------------------------------ 18258( 3) - 30-Sep-2026 17:30:44 - [ 4] Visit: 01 (G130M-Flare1) Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: Flare Monitoring Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 TOI-244 COS/NUV ACQ/IMA PSA MIRRORB 1 111 S (111 GE S) Comments: Lifetime check for G130M: Initial look is ~33 counts total in the Brightest emission line per FP-POS across all visits. We should be ok. ------------------------------------------------------------------------------------------------------------------------------------ 2 TOI-244 COS/FUV TIME-TA PSA G130M 1222 FP-POS=1, BUFFER-TIME=1350 1 1750 S G (1750 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 TOI-244 COS/FUV TIME-TA PSA G130M 1222 FP-POS=2, BUFFER-TIME=1350 1 2428 S G (2428 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 TOI-244 COS/FUV TIME-TA PSA G130M 1222 FP-POS=3, BUFFER-TIME=1350 1 2428 S G (2428 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 TOI-244 COS/FUV TIME-TA PSA G130M 1222 FP-POS=4, BUFFER-TIME=1350 1 2428 S G (2428 S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ TOI-244 1 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A GE TOI-244 2 COS/FUV TIME-TA PSA G130M 1222 none none none none 1 N/A G TOI-244 3 COS/FUV TIME-TA PSA G130M 1222 none none none none 2 N/A G TOI-244 4 COS/FUV TIME-TA PSA G130M 1222 none none none none 3 N/A G TOI-244 5 COS/FUV TIME-TA PSA G130M 1222 none none none none 4 N/A G 18258( 3) - 30-Sep-2026 17:30:44 - [ 5] Visit: 02 (G130M-Flare2) Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: Flare Monitoring Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 TOI-244 COS/NUV ACQ/IMA PSA MIRRORB 1 111 S (111 GE S) ------------------------------------------------------------------------------------------------------------------------------------ 2 TOI-244 COS/FUV TIME-TA PSA G130M 1222 FP-POS=1, BUFFER-TIME=1350 1 1750 S G (1750 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 TOI-244 COS/FUV TIME-TA PSA G130M 1222 FP-POS=2, BUFFER-TIME=1350 1 2428 S G (2428 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 TOI-244 COS/FUV TIME-TA PSA G130M 1222 FP-POS=3, BUFFER-TIME=1350 1 2428 S G (2428 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 TOI-244 COS/FUV TIME-TA PSA G130M 1222 FP-POS=4, BUFFER-TIME=1350 1 2428 S G (2428 S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ TOI-244 1 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A GE TOI-244 2 COS/FUV TIME-TA PSA G130M 1222 none none none none 1 N/A G TOI-244 3 COS/FUV TIME-TA PSA G130M 1222 none none none none 2 N/A G TOI-244 4 COS/FUV TIME-TA PSA G130M 1222 none none none none 3 N/A G TOI-244 5 COS/FUV TIME-TA PSA G130M 1222 none none none none 4 N/A G 18258( 3) - 30-Sep-2026 17:30:44 - [ 6] Visit: 03 (G130M-Flare3) Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: Flare Monitoring Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 TOI-244 COS/NUV ACQ/IMA PSA MIRRORB 1 111 S (111 GE S) ------------------------------------------------------------------------------------------------------------------------------------ 2 TOI-244 COS/FUV TIME-TA PSA G130M 1222 FP-POS=1, BUFFER-TIME=1350 1 1750 S G (1750 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 TOI-244 COS/FUV TIME-TA PSA G130M 1222 FP-POS=2, BUFFER-TIME=1350 1 2428 S G (2428 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 TOI-244 COS/FUV TIME-TA PSA G130M 1222 FP-POS=3, BUFFER-TIME=1350 1 2428 S G (2428 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 TOI-244 COS/FUV TIME-TA PSA G130M 1222 FP-POS=4, BUFFER-TIME=1350 1 2428 S G (2428 S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ TOI-244 1 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A GE TOI-244 2 COS/FUV TIME-TA PSA G130M 1222 none none none none 1 N/A G TOI-244 3 COS/FUV TIME-TA PSA G130M 1222 none none none none 2 N/A G TOI-244 4 COS/FUV TIME-TA PSA G130M 1222 none none none none 3 N/A G TOI-244 5 COS/FUV TIME-TA PSA G130M 1222 none none none none 4 N/A G 18258( 3) - 30-Sep-2026 17:30:44 - [ 7] Visit: 04 (G160M-Coverage1) Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: FUV coverage for emission lines, primarily CIV Using CENWAVE 1600 to avoid Si IV, which would be to bright in a flaring condition. This line is well detected in archival data. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 TOI-244 COS/NUV ACQ/IMA PSA MIRRORB 1 111 S (111 GE S) Comments: Lifetime check for G160M: Initial look is ~3 counts total in the Brightest emission line per FP-POS. We should be ok. ------------------------------------------------------------------------------------------------------------------------------------ 2 TOI-244 COS/FUV TIME-TA PSA G160M 1533 FP-POS=1, BUFFER-TIME=1350 1 1896 S G (1896 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 TOI-244 COS/FUV TIME-TA PSA G160M 1533 FP-POS=2, BUFFER-TIME=1350 1 2424 S G (2424 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 TOI-244 COS/FUV TIME-TA PSA G160M 1533 FP-POS=3, BUFFER-TIME=1350 1 2424 S G (2424 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 TOI-244 COS/FUV TIME-TA PSA G160M 1533 FP-POS=4, BUFFER-TIME=1350 1 2424 S G (2424 S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ TOI-244 1 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A GE TOI-244 2 COS/FUV TIME-TA PSA G160M 1533 none none none none 1 N/A G TOI-244 3 COS/FUV TIME-TA PSA G160M 1533 none none none none 2 N/A G TOI-244 4 COS/FUV TIME-TA PSA G160M 1533 none none none none 3 N/A G TOI-244 5 COS/FUV TIME-TA PSA G160M 1533 none none none none 4 N/A G 18258( 3) - 30-Sep-2026 17:30:44 - [ 8] Visit: 05 (G160M-Coverage2) Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: FUV coverage for emission lines, primarily CIV Using CENWAVE 1600 to avoid Si IV, which would be to bright in a flaring condition. This line is well detected in archival data. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 TOI-244 COS/NUV ACQ/IMA PSA MIRRORB 1 111 S (111 GE S) ------------------------------------------------------------------------------------------------------------------------------------ 2 TOI-244 COS/FUV TIME-TA PSA G160M 1533 FP-POS=1, BUFFER-TIME=1350 1 1896 S G (1896 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 TOI-244 COS/FUV TIME-TA PSA G160M 1533 FP-POS=2, BUFFER-TIME=1350 1 2424 S G (2424 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 TOI-244 COS/FUV TIME-TA PSA G160M 1533 FP-POS=3, BUFFER-TIME=1350 1 2424 S G (2424 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 TOI-244 COS/FUV TIME-TA PSA G160M 1533 FP-POS=4, BUFFER-TIME=1350 1 2424 S G (2424 S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ TOI-244 1 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A GE TOI-244 2 COS/FUV TIME-TA PSA G160M 1533 none none none none 1 N/A G TOI-244 3 COS/FUV TIME-TA PSA G160M 1533 none none none none 2 N/A G TOI-244 4 COS/FUV TIME-TA PSA G160M 1533 none none none none 3 N/A G TOI-244 5 COS/FUV TIME-TA PSA G160M 1533 none none none none 4 N/A G 18258( 3) - 30-Sep-2026 17:30:44 - [ 9] Visit: 06 (G160M-Coverage3) Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: FUV coverage for emission lines, primarily CIV Using CENWAVE 1600 to avoid Si IV, which would be to bright in a flaring condition. This line is well detected in archival data. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 TOI-244 COS/NUV ACQ/IMA PSA MIRRORB 1 111 S (111 GE S) ------------------------------------------------------------------------------------------------------------------------------------ 2 TOI-244 COS/FUV TIME-TA PSA G160M 1533 FP-POS=1, BUFFER-TIME=1350 1 1896 S G (1896 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 TOI-244 COS/FUV TIME-TA PSA G160M 1533 FP-POS=2, BUFFER-TIME=1350 1 2424 S G (2424 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 TOI-244 COS/FUV TIME-TA PSA G160M 1533 FP-POS=3, BUFFER-TIME=1350 1 2424 S G (2424 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 TOI-244 COS/FUV TIME-TA PSA G160M 1533 FP-POS=4, BUFFER-TIME=1350 1 2424 S G (2424 S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ TOI-244 1 COS/NUV ACQ/IMA PSA MIRRORB none none none none 1 N/A GE TOI-244 2 COS/FUV TIME-TA PSA G160M 1533 none none none none 1 N/A G TOI-244 3 COS/FUV TIME-TA PSA G160M 1533 none none none none 2 N/A G TOI-244 4 COS/FUV TIME-TA PSA G160M 1533 none none none none 3 N/A G TOI-244 5 COS/FUV TIME-TA PSA G160M 1533 none none none none 4 N/A G 18258( 3) - 30-Sep-2026 17:30:44 - [ 10] Visit: 07 (STIS-Coverage1) Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: UV/Vis characterization Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 TOI-244 STIS/CCD ACQ F28X50LP MIRROR 1 0.2 S (0.2 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 TOI-244 STIS/NUV TIME-TA 52X0.2 G230L 2376 BUFFER-TIME=600, WAVECAL=NO 1 2065 S -MAMA G (2065 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 WAVE STIS/NUV ACCUM 52X0.2 G230L 2376 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ TOI-244 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A TOI-244 2 STIS/NUV TIME-TA 52X0.2 G230L 2376 none none none none 1 N/A -MAMA G WAVE 3 STIS/NUV ACCUM 52X0.2 G230L 2376 none none none none 1 N/A -MAMA 18258( 3) - 30-Sep-2026 17:30:44 - [ 11] Visit: 08 (STIS-Coverage2) Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: UV/Vis characterization Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 TOI-244 STIS/CCD ACQ F28X50LP MIRROR 1 0.2 S (0.2 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 WAVE STIS/CCD ACCUM 52X0.2 G430L 4300 1 DEF (0 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 TOI-244 STIS/CCD ACCUM 52X0.2E1 G430L 4300 CR-SPLIT=5 1 1200 S (1200 S) Comments: 25% full well ------------------------------------------------------------------------------------------------------------------------------------ 4 TOI-244 STIS/CCD ACCUM 52X0.2 G750L 7751 CR-SPLIT=5, WAVECAL=NO 1 275 S (275 S) Comments: 25% full well ------------------------------------------------------------------------------------------------------------------------------------ 5 WAVE STIS/CCD ACCUM 52X0.2 G750L 7751 1 DEF (0 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 CCDFLAT STIS/CCD ACCUM 0.3X0.09 G750L 7751 2 DEF (0 S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ TOI-244 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A WAVE 2 STIS/CCD ACCUM 52X0.2 G430L 4300 none none none none 1 N/A TOI-244 3 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 1 1 N/A TOI-244 3 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 2 1 N/A TOI-244 3 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 3 1 N/A TOI-244 3 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 4 1 N/A TOI-244 3 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 5 1 N/A TOI-244 4 STIS/CCD ACCUM 52X0.2 G750L 7751 none none none 1 1 N/A TOI-244 4 STIS/CCD ACCUM 52X0.2 G750L 7751 none none none 2 1 N/A TOI-244 4 STIS/CCD ACCUM 52X0.2 G750L 7751 none none none 3 1 N/A TOI-244 4 STIS/CCD ACCUM 52X0.2 G750L 7751 none none none 4 1 N/A TOI-244 4 STIS/CCD ACCUM 52X0.2 G750L 7751 none none none 5 1 N/A WAVE 5 STIS/CCD ACCUM 52X0.2 G750L 7751 none none none none 1 N/A CCDFLAT 6 STIS/CCD ACCUM 0.3X0.09 G750L 7751 none none 1 none 1 N/A CCDFLAT 6 STIS/CCD ACCUM 0.3X0.09 G750L 7751 none none 2 none 1 N/A 18258( 3) - 30-Sep-2026 17:30:44 - [ 12] Visit: 09 (STIS-Lyman alpha 1) Visit Requirements: SCHED 100%; BETWEEN 01-OCT-2026 AND 20-AUG-2027 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 TOI-244 STIS/CCD ACQ F28X50LP MIRROR 1 0.2 S (0.2 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 TOI-244 STIS/FUV TIME-TA 52X0.2D1 G140M 1222 BUFFER-TIME=900, WAVECAL=NO 1 2040 S -MAMA G (2040 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 WAVE STIS/FUV ACCUM 52X0.2 G140M 1222 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 4 TOI-244 STIS/FUV TIME-TA 52X0.2D1 G140M 1222 BUFFER-TIME=900 1 2458 S -MAMA G (2458 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 WAVE STIS/FUV ACCUM 52X0.2 G140M 1222 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ TOI-244 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A TOI-244 2 STIS/FUV TIME-TA 52X0.2D1 G140M 1222 none none none none 1 N/A -MAMA G WAVE 3 STIS/FUV ACCUM 52X0.2 G140M 1222 none none none none 1 N/A -MAMA TOI-244 4 STIS/FUV TIME-TA 52X0.2D1 G140M 1222 none none none none 2 N/A -MAMA G WAVE 5 STIS/FUV ACCUM 52X0.2 G140M 1222 none none none none 2 N/A -MAMA 18258( 3) - 30-Sep-2026 17:30:44 - [ 13] Visit: 10 (STIS-Lyman alpha 2) Visit Requirements: SCHED 100%; BETWEEN 01-OCT-2026 AND 20-AUG-2027 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 TOI-244 STIS/CCD ACQ F28X50LP MIRROR 1 0.2 S (0.2 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 TOI-244 STIS/FUV TIME-TA 52X0.2D1 G140M 1222 BUFFER-TIME=900, WAVECAL=NO 1 2040 S -MAMA G (2040 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 WAVE STIS/FUV ACCUM 52X0.2 G140M 1222 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 4 TOI-244 STIS/FUV TIME-TA 52X0.2D1 G140M 1222 BUFFER-TIME=900 1 2458 S -MAMA G (2458 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 WAVE STIS/FUV ACCUM 52X0.2 G140M 1222 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ TOI-244 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A TOI-244 2 STIS/FUV TIME-TA 52X0.2D1 G140M 1222 none none none none 1 N/A -MAMA G WAVE 3 STIS/FUV ACCUM 52X0.2 G140M 1222 none none none none 1 N/A -MAMA TOI-244 4 STIS/FUV TIME-TA 52X0.2D1 G140M 1222 none none none none 2 N/A -MAMA G WAVE 5 STIS/FUV ACCUM 52X0.2 G140M 1222 none none none none 2 N/A -MAMA 18258( 3) - 30-Sep-2026 17:30:44 - [ 14] Visit: 11 (STIS-Lyman alpha 3) Visit Requirements: SCHED 100%; BETWEEN 01-OCT-2026 AND 20-AUG-2027 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 TOI-244 STIS/CCD ACQ F28X50LP MIRROR 1 0.2 S (0.2 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 TOI-244 STIS/FUV TIME-TA 52X0.2D1 G140M 1222 BUFFER-TIME=900, WAVECAL=NO 1 2040 S -MAMA G (2040 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 WAVE STIS/FUV ACCUM 52X0.2 G140M 1222 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ 4 TOI-244 STIS/FUV TIME-TA 52X0.2D1 G140M 1222 BUFFER-TIME=900 1 2458 S -MAMA G (2458 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 WAVE STIS/FUV ACCUM 52X0.2 G140M 1222 1 DEF (0 S) -MAMA ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ TOI-244 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A TOI-244 2 STIS/FUV TIME-TA 52X0.2D1 G140M 1222 none none none none 1 N/A -MAMA G WAVE 3 STIS/FUV ACCUM 52X0.2 G140M 1222 none none none none 1 N/A -MAMA TOI-244 4 STIS/FUV TIME-TA 52X0.2D1 G140M 1222 none none none none 2 N/A -MAMA G WAVE 5 STIS/FUV ACCUM 52X0.2 G140M 1222 none none none none 2 N/A -MAMA 18258( 3) - 30-Sep-2026 17:30:44 - [ 15] Summary Form for Proposal 18258 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures 0.3X0.09, 52X0.2, 52X0.2D1, 52X0.2E1, F28X50LP, PSA ------------------------------------------------------------------------------------------------------------------------------------ Configurations COS/FUV, COS/NUV, STIS/CCD, STIS/FUV-MAMA, STIS/NUV-MAMA ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, ACQ, ACQ/IMAGE, TIME-TAG ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters BUFFER-TIME=1350, BUFFER-TIME=600, BUFFER-TIME=900, CR-SPLIT=5, FP-POS=1, FP-POS=2, FP-POS=3, FP-POS=4, WAVECAL=NO ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements BETWEEN 01-OCT-2026 AND 20-AUG-2027, SCHED 100% ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements G130M, G140M, G160M, G230L, G430L, G750L, MIRROR, MIRRORB ------------------------------------------------------------------------------------------------------------------------------------ Target Names CCDFLAT, TOI-244, WAVE ------------------------------------------------------------------------------------------------------------------------------------