18431( 4) - 27-Aug-2026 16:08:46 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 18431 Version: 4 Check-in Time: 27-Aug-2026 16:08:46 STScI Edit Number: 0 Title Minor Axis, Major Insight: A COS Survey of Multi-Phase Galactic Outflows ------------------------------------------------------------------------------------ Type Cycle GO 34 ------------------------------------------------------------------------------------ Investigators Contact? PI: Prof. Glenn G. Kacprzak Swinburne University of Technology Y CoI: Mr. Kaustubh Rajesh Gupta Swinburne University of Technology N CoI: Dr. Benjamin Darwin Oppenheimer University of Colorado at Boulder Y CoI: Mr. Sarbeswar Das Swinburne University of Technology N CoI: Prof. Nikki Nielsen University of Oklahoma Norman Campus Y ------------------------------------------------------------------------------------ Abstract Galactic outflows are a key regulator of galaxy evolution, yet their physical structure, metal content, and radial evolution remain poorly constrained observationally. We propose to use HST/COS far-ultraviolet spectroscopy to characterize multi-phase outflowing gas in the circumgalactic medium of star-forming galaxies. Our program targets nine inclined, isolated, star-forming disk galaxies at z~0.2, probed by background quasars along their minor axes at projected distances of 12-49 kpc. Each sightline already exhibits MgII absorption at the galaxy redshift, enabling a focused study of systems in which cool circumgalactic gas is known to be present. The COS data will measure the kinematics, metallicity, and ionization structure of the gas, from HI and low ions to OVI, thereby constraining the multi-phase nature of galactic winds across the inner and outer circumgalactic medium. These observations will test the kinematic coupling of the cool and warm-hot phases with radius, provide empirical benchmarks for distinguishing among competing wind-driving scenarios, and constrain how mass and metals are transported from galaxies into their halos by combining the COS spectroscopy with existing ground-based galaxy and quasar data. This program will provide a well-characterized minor-axis dataset for clarifying how galactic outflows shape the physical and chemical structure of the circumgalactic medium. ------------------------------------------------------------------------------------ Observations Description ------------------------ QSO Spectroscopy with COS: Our science analysis is focused on measuring (a) the kinematics of low, intermediate, and high-ionization CGM gas using both the pixel-velocity two-point correlation function (TPCF) and Voigt profile (VP) fitting and (b) measuring the metallicities from VP column densities and ionization modeling. From these measurements, we will then quantitatively characterize the differences and/or similarities major axis and minor axis CGM, with 9 minor axis (those proposed for here) and 9 major axis galaxies (from PID 17541). 18431( 4) - 27-Aug-2026 16:08:46 - [ 2] We use the G130M grating with a single optimized central wavelength per target to cover a diverse range of low-ionization metal lines (OI, CII, NII, FeII, SiII), intermediate-ionization lines (NIII and CIII) and the OVI high-ionization lines. For 5 galaxies, we cover the entire Lyman series from Lybeta to the break and for four galaxies from Lybeta to Lytau . Since all absorbers are expected to have logN(HI) > 17, we would gain little-to-no constraints from the highly-saturated Ly-alpha lines. We used the COS ETC to estimate exposure times required to achieve signal-to-noise ratios (S/N) of 12 per resolution element after binning by three in the dispersion direction, yielding 2.7 pixels per resolution element. For our binning at S/N = 12, COS delivers a 3-sigma detection threshold of 25 mA. The coordinates of our point-source targets are much better then 0.5". We thus adopt the minimal approach to target acquisition. We use the NUV imager with MIRRORA in ACQ IMAGE mode through the PSA aperture. Exposure times were determined using the COS ETC to ensure we achieve the recommended SNR of 20 for target acquisitions. The NUV magnitudes were obtain from GALEX. Our targets are observed using both A and B stripes of the G130 M. Five of our targets use the 1222 grating center. Two of our targets are optimal with the 1096 centering (G4O, G6O) and two are optimal for the 1291 center (G2O, G9O). For all gratings, we obtain exposures at all FP-POS setting. We move these in the forward direction in order to minimize overhead. For the 1291 center, we use only FP-POS=3, 4 in order to avoid segment reconfiguration overhead. For all exposures, we adopt the recommended TIME-TAG photon counting with FLASH=yes, and adopt a standard BUFFER-TIME=6000 seconds based on the count rates of our targets. All targets are exposed through the PSA aperture and guidance is set to FINE. For Phase I, exposure time estimates were obtained using the COS ETC for a point source with published GALEX FUV fluxes, and employed average Galactic extinction, standard zodiacal light normalizations, standard earth-shine light normalizations, and average air glow. Six of the targets have greater than 4 orbits and may need to be split. ------------------------------------------------------------------------------------ 18431( 4) - 27-Aug-2026 16:08:46 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 G1O GALAXY, QUASAR RA=22H40M13.4084S +/- 0.05", J2000 Z = V = 17.7 FUV(GALEX AB) = 19.27, DEC=-08D36'28.75" +/- 0.05" 1.581 NUV(GALEX AB) =18.30234 Reference Frame: ICRS Extended: NO Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 G2O GALAXY, QUASAR RA=14H32M16.7807S +/- 0.05", J2000 Z = V = 17.44 FUV(GALEX AB) = 18.44, DEC=+09D55'19.24" +/- 0.05" 0.765 NUV(GALEX AB) =17.84695 Reference Frame: ICRS Extended: NO Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 3 G3O GALAXY, QUASAR RA=15H49M56.8739S +/- 0.05", J2000 Z = V = 17.36 FUV(GALEX AB) = 18.62 DEC=+07D00'44.89" +/- 0.05" 0.798 NUV(GALEX AB) =17.70879 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. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 4 G4O GALAXY, QUASAR RA=09H56M6.2681S +/- 0.05", J2000 Z = V = 18.38 FUV(GALEX AB) = 19.47 DEC=+12D38'2.51" +/- 0.05" 0.763 NUV(GALEX AB) =18.658 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. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 0.0 0.0 0.0 18431( 4) - 27-Aug-2026 16:08:46 - [ 4] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ 5 G5O GALAXY, QUASAR RA=12H29M34.6657S +/- 0.05", J2000 Z = V = 18.36 FUV(GALEX AB) = 19.49 DEC=+10D07'9.98" +/- 0.05" 0.746 NUV(GALEX AB) =18.79101 Reference Frame: ICRS Extended: NO Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 6 G6O GALAXY, QUASAR RA=22H33M59.9314S +/- 0.05", J2000 Z = V = 17.76 FUV(GALEX AB) = 19.34 DEC=-00D33'15.80" +/- 0.05" 1.210 NUV(GALEX AB) =18.21192 Reference Frame: ICRS Extended: NO Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 7 G7O GALAXY, QUASAR RA=15H31M12.9765S +/- 0.05", J2000 Z = V = 18.18 FUV(GALEX AB) = 19.59 DEC=+09D11'38.71" +/- 0.05" 1.228 NUV(GALEX AB) =18.39993 Reference Frame: ICRS Extended: NO Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 8 G8O GALAXY, QUASAR RA=14H04M2.1656S +/- 0.05", J2000 Z = V = 17.43 FUV(GALEX AB) = 19.39 DEC=+10D28'0.63" +/- 0.05" 0.915 NUV(GALEX AB) =17.78797 Reference Frame: ICRS Extended: NO Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 9 G9O GALAXY, QUASAR RA=09H35M36.9941S +/- 0.05", J2000 Z = V = 18.32 FUV(GALEX AB) = 19.96 DEC=+11D24'8.00" +/- 0.05" 0.846 NUV(GALEX AB) =18.89013 Reference Frame: ICRS Extended: NO Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 18431( 4) - 27-Aug-2026 16:08:46 - [ 5] Visit: 01 (G1O) Visit Requirements: PCS MODE FINE; SCHED 100% 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 G1O COS/NUV ACQ/IMA PSA MIRRORA 1 2 S (2 S) GE ------------------------------------------------------------------------------------------------------------------------------------ 2 G1O COS/FUV TIME-TA PSA G130M 1222 FP-POS=1, BUFFER-TIME=13449, 1 1967 S G LIFETIME-POS=LP7, SEGMENT=BOTH (1967 S) Comments: BFT=20, 174 BT=2/3*BFT=13449 expected SNR in this exposure is SNR = 2.5779 (per resolution element) at wavelength 1310.00 A ------------------------------------------------------------------------------------------------------------------------------------ 3 G1O COS/FUV TIME-TA PSA G130M 1222 FP-POS=2, BUFFER-TIME=13449, 1 2427 S G LIFETIME-POS=LP7, SEGMENT=BOTH (2427 S) Comments: BFT=20, 174 BT=2/3*BFT=13449 expected SNR in this exposure is SNR = 2.8635 (per resolution element) at wavelength 1310.00 A ------------------------------------------------------------------------------------------------------------------------------------ 4 G1O COS/FUV TIME-TA PSA G130M 1222 FP-POS=4, LIFETIME-POS=LP7, 1 2427 S G BUFFER-TIME=13449, (2427 S) SEGMENT=BOTH Comments: BFT=20, 174 BT=2/3*BFT=13449 expected SNR in this exposure is SNR = 2.8635 (per resolution element) at wavelength 1310.00 A ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ G1O 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE G1O 2 COS/FUV TIME-TA PSA G130M 1222 none none none none 1 N/A G G1O 3 COS/FUV TIME-TA PSA G130M 1222 none none none none 2 N/A G G1O 4 COS/FUV TIME-TA PSA G130M 1222 none none none none 3 N/A G 18431( 4) - 27-Aug-2026 16:08:46 - [ 6] Visit: 02 (G2O) Visit Requirements: PCS MODE FINE; SCHED 100% 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 G2O COS/NUV ACQ/IMA PSA MIRRORA 1 2 S (2 S) GE ------------------------------------------------------------------------------------------------------------------------------------ 2 G2O COS/FUV TIME-TA PSA G130M 1291 FP-POS=3, BUFFER-TIME=5163, 1 2053 S G LIFETIME-POS=LP7, SEGMENT=BOTH (2053 S) Comments: BFT=7, 745 BT=2/3*BFT=5163 expected SNR in this exposure is SNR = 4.0607 (per resolution element) at wavelength 1310.00 A ------------------------------------------------------------------------------------------------------------------------------------ 3 G2O COS/FUV TIME-TA PSA G130M 1291 FP-POS=4, BUFFER-TIME=5163, 1 2427 S G LIFETIME-POS=LP7, SEGMENT=BOTH (2427 S) Comments: BFT=7, 745 BT=2/3*BFT=5163 expected SNR in this exposure is SNR = 4.5478 (per resolution element) at wavelength 1310.00 A ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ G2O 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE G2O 2 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 N/A G G2O 3 COS/FUV TIME-TA PSA G130M 1291 none none none none 2 N/A G 18431( 4) - 27-Aug-2026 16:08:46 - [ 7] Visit: 03 (G3O) Visit Requirements: PCS MODE FINE; SCHED 100% 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 G3O COS/NUV ACQ/IMA PSA MIRRORA 1 2 S (2 S) GE ------------------------------------------------------------------------------------------------------------------------------------ 2 G3O COS/FUV TIME-TA PSA G130M 1222 FP-POS=1, BUFFER-TIME=11892, 1 1967 S G LIFETIME-POS=LP7, SEGMENT=BOTH (1967 S) Comments: BFT=17, 838 BT=2/3*BFT=5288 expected SNR in this exposure is SNR = 3.5823 (per resolution element) at wavelength 1310.00 A ------------------------------------------------------------------------------------------------------------------------------------ 3 G3O COS/FUV TIME-TA PSA G130M 1222 FP-POS=2, BUFFER-TIME=11892, 1 2427 S G LIFETIME-POS=LP7, SEGMENT=BOTH (2427 S) Comments: BFT=17, 838 BT=2/3*BFT=11892 expected SNR in this exposure is SNR =3.9792 (per resolution element) at wavelength 1310.00 A ------------------------------------------------------------------------------------------------------------------------------------ 4 G3O COS/FUV TIME-TA PSA G130M 1222 FP-POS=4, LIFETIME-POS=LP7, 1 2427 S G BUFFER-TIME=11892, (2427 S) SEGMENT=BOTH Comments: BFT=17, 838 BT=2/3*BFT=11892 expected SNR in this exposure is SNR = 3.9792 (per resolution element) at wavelength 1310.00 A ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ G3O 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE G3O 2 COS/FUV TIME-TA PSA G130M 1222 none none none none 1 N/A G G3O 3 COS/FUV TIME-TA PSA G130M 1222 none none none none 2 N/A G G3O 4 COS/FUV TIME-TA PSA G130M 1222 none none none none 3 N/A G 18431( 4) - 27-Aug-2026 16:08:46 - [ 8] Visit: 04 (G4O_visit1) Visit Requirements: SCHED 100% 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 G4O COS/NUV ACQ/IMA PSA MIRRORA 1 3 S (3 S) GE ------------------------------------------------------------------------------------------------------------------------------------ 2 G4O COS/FUV TIME-TA PSA G130M 1222 FP-POS=1, BUFFER-TIME=13682, 1 1965 S G LIFETIME-POS=LP7, SEGMENT=BOTH (1965 S) Comments: BFT=20, 523 BT=2/3*BFT=13682 expected SNR in this exposure is SNR = 2.3915 (per resolution element) at wavelength 1310.00 A Changed from 1096 to 1222 since the absorbing galaxy redshift is at z=0.126 and absorption below 1100A will be not detected. Science unchanged and now even more optimised. ------------------------------------------------------------------------------------------------------------------------------------ 3 G4O COS/FUV TIME-TA PSA G130M 1222 FP-POS=1, BUFFER-TIME=13682, 1 2427 S G LIFETIME-POS=LP7, SEGMENT=BOTH (2427 S) Comments: BFT=20, 523 BT=2/3*BFT=13682 expected SNR in this exposure is SNR = 2.6728 (per resolution element) at wavelength 1310.00 A Changed from 1096 to 1222 since the absorbing galaxy redshift is at z=0.126 and absorption below 1100A will be not detected. Science unchanged and now even more optimised. ------------------------------------------------------------------------------------------------------------------------------------ 4 G4O COS/FUV TIME-TA PSA G130M 1222 FP-POS=2, BUFFER-TIME=13682, 1 2427 S G LIFETIME-POS=LP7, SEGMENT=BOTH (2427 S) Comments: BFT=20, 523 BT=2/3*BFT=13682 expected SNR in this exposure is SNR = 2.6728 (per resolution element) at wavelength 1310.00 A Changed from 1096 to 1222 since the absorbing galaxy redshift is at z=0.126 and absorption below 1100A will be not detected. Science unchanged and now even more optimised. ------------------------------------------------------------------------------------------------------------------------------------ 18431( 4) - 27-Aug-2026 16:08:46 - [ 9] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 5 G4O COS/FUV TIME-TA PSA G130M 1222 FP-POS=3, BUFFER-TIME=13682, 1 2427 S G LIFETIME-POS=LP7, SEGMENT=BOTH (2427 S) Comments: BFT=20, 523 BT=2/3*BFT=13682 expected SNR in this exposure is SNR = 2.6728 (per resolution element) at wavelength 1310.00 A Changed from 1096 to 1222 since the absorbing galaxy redshift is at z=0.126 and absorption below 1100A will be not detected. Science unchanged and now even more optimised. ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ G4O 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE G4O 2 COS/FUV TIME-TA PSA G130M 1222 none none none none 1 N/A G G4O 3 COS/FUV TIME-TA PSA G130M 1222 none none none none 2 N/A G G4O 4 COS/FUV TIME-TA PSA G130M 1222 none none none none 3 N/A G G4O 5 COS/FUV TIME-TA PSA G130M 1222 none none none none 4 N/A G 18431( 4) - 27-Aug-2026 16:08:46 - [ 10] Visit: 05 (G5O_visit1) Visit Requirements: PCS MODE FINE; SCHED 100% 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 G5O COS/NUV ACQ/IMA PSA MIRRORA 1 4 S (4 S) GE ------------------------------------------------------------------------------------------------------------------------------------ 2 G5O COS/FUV TIME-TA PSA G130M 1222 FP-POS=1, BUFFER-TIME=13675, 1 1963 S G LIFETIME-POS=LP7, SEGMENT=BOTH (1963 S) Comments: BFT=20, 512 BT=2/3*BFT=13675 expected SNR in this exposure is SNR = 2.2650 (per resolution element) at wavelength 1310.00 A ------------------------------------------------------------------------------------------------------------------------------------ 3 G5O COS/FUV TIME-TA PSA G130M 1222 FP-POS=1, BUFFER-TIME=13675, 1 2427 S G LIFETIME-POS=LP7, SEGMENT=BOTH (2427 S) Comments: BFT=20, 512 BT=2/3*BFT=13675 expected SNR in this exposure is SNR = 2.5185 (per resolution element) at wavelength 1310.00 A ------------------------------------------------------------------------------------------------------------------------------------ 4 G5O COS/FUV TIME-TA PSA G130M 1222 FP-POS=2, BUFFER-TIME=13675, 1 2427 S G LIFETIME-POS=LP7, SEGMENT=BOTH (2427 S) Comments: BFT=20, 512 BT=2/3*BFT=13675 expected SNR in this exposure is SNR = 2.5185 (per resolution element) at wavelength 1310.00 A ------------------------------------------------------------------------------------------------------------------------------------ 5 G5O COS/FUV TIME-TA PSA G130M 1222 FP-POS=3, BUFFER-TIME=13675, 1 2427 S G LIFETIME-POS=LP7, SEGMENT=BOTH (2427 S) Comments: BFT=20, 512 BT=2/3*BFT=13675 expected SNR in this exposure is SNR = 2.5185 (per resolution element) at wavelength 1310.00 A ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ G5O 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE G5O 2 COS/FUV TIME-TA PSA G130M 1222 none none none none 1 N/A G 18431( 4) - 27-Aug-2026 16:08:46 - [ 11] 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 | ------------------------------------------------------------------------------------------------------------------------------------ G5O 3 COS/FUV TIME-TA PSA G130M 1222 none none none none 2 N/A G G5O 4 COS/FUV TIME-TA PSA G130M 1222 none none none none 3 N/A G G5O 5 COS/FUV TIME-TA PSA G130M 1222 none none none none 4 N/A G 18431( 4) - 27-Aug-2026 16:08:46 - [ 12] Visit: 06 (G6O) Visit Requirements: SCHED 100% 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 G6O COS/NUV ACQ/IMA PSA MIRRORA 1 2 S (2 S) GE ------------------------------------------------------------------------------------------------------------------------------------ 2 G6O COS/FUV TIME-TA PSA G130M 1222 FP-POS=1, BUFFER-TIME=13490, 1 1967 S G LIFETIME-POS=LP7, SEGMENT=BOTH (1967 S) Comments: BFT=20, 235 BT=2/3*BFT=13490 expected SNR in this exposure is SNR = 2.5807 (per resolution element) at wavelength 1310.00 A Changed from 1096 to 1222 since the absorbing galaxy redshift is at z=0.1162 and absorption below 1100A will be not detected. Science unchanged and now even more optimised. ------------------------------------------------------------------------------------------------------------------------------------ 3 G6O COS/FUV TIME-TA PSA G130M 1222 FP-POS=1, BUFFER-TIME=13490, 1 2427 S G LIFETIME-POS=LP7, SEGMENT=BOTH (2427 S) Comments: BFT=20, 235 BT=2/3*BFT=13490 expected SNR in this exposure is SNR = 2.8666 (per resolution element) at wavelength 1310.00 A Changed from 1096 to 1222 since the absorbing galaxy redshift is at z=0.1162 and absorption below 1100A will be not detected. Science unchanged and now even more optimised. ------------------------------------------------------------------------------------------------------------------------------------ 4 G6O COS/FUV TIME-TA PSA G130M 1222 FP-POS=2, BUFFER-TIME=13490, 1 2427 S G LIFETIME-POS=LP7, SEGMENT=BOTH (2427 S) Comments: BFT=20, 235 BT=2/3*BFT=13490 expected SNR in this exposure is SNR = 2.8666 (per resolution element) at wavelength 1310.00 A Changed from 1096 to 1222 since the absorbing galaxy redshift is at z=0.1162 and absorption below 1100A will be not detected. Science unchanged and now even more optimised. ------------------------------------------------------------------------------------------------------------------------------------ 18431( 4) - 27-Aug-2026 16:08:46 - [ 13] 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 | ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ G6O 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE G6O 2 COS/FUV TIME-TA PSA G130M 1222 none none none none 1 N/A G G6O 3 COS/FUV TIME-TA PSA G130M 1222 none none none none 2 N/A G G6O 4 COS/FUV TIME-TA PSA G130M 1222 none none none none 3 N/A G 18431( 4) - 27-Aug-2026 16:08:46 - [ 14] Visit: 07 (G7O) Visit Requirements: PCS MODE FINE; SCHED 100% 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 G7O COS/NUV ACQ/IMA PSA MIRRORA 1 3 S (3 S) GE ------------------------------------------------------------------------------------------------------------------------------------ 2 G7O COS/FUV TIME-TA PSA G130M 1222 FP-POS=1, BUFFER-TIME=13887, 1 1965 S G LIFETIME-POS=LP7, SEGMENT=BOTH (1965 S) Comments: BFT=20, 831 BT=2/3*BFT=13887 expected SNR in this exposure is SNR = 2.1743 (per resolution element) at wavelength 1310.00 A ------------------------------------------------------------------------------------------------------------------------------------ 3 G7O COS/FUV TIME-TA PSA G130M 1222 FP-POS=2, BUFFER-TIME=13887, 1 2427 S G LIFETIME-POS=LP7, SEGMENT=BOTH (2427 S) Comments: BFT=20, 831 BT=2/3*BFT=13887 expected SNR in this exposure is SNR = 2.4164 (per resolution element) at wavelength 1310.00 A ------------------------------------------------------------------------------------------------------------------------------------ 4 G7O COS/FUV TIME-TA PSA G130M 1222 FP-POS=3, BUFFER-TIME=13887, 1 2427 S G LIFETIME-POS=LP7, SEGMENT=BOTH (2427 S) Comments: BFT=20, 831 BT=2/3*BFT=13887 expected SNR in this exposure is SNR = 2.4164 (per resolution element) at wavelength 1310.00 A ------------------------------------------------------------------------------------------------------------------------------------ 5 G7O COS/FUV TIME-TA PSA G130M 1222 FP-POS=4, BUFFER-TIME=13887, 1 2427 S G LIFETIME-POS=LP7, SEGMENT=BOTH (2427 S) Comments: BFT=20, 831 BT=2/3*BFT=13887 expected SNR in this exposure is SNR = 2.4164 (per resolution element) at wavelength 1310.00 A ------------------------------------------------------------------------------------------------------------------------------------ 6 G7O COS/FUV TIME-TA PSA G130M 1222 FP-POS=4, BUFFER-TIME=13887, 1 2427 S G LIFETIME-POS=LP7, SEGMENT=BOTH (2427 S) Comments: BFT=20, 831 BT=2/3*BFT=13887 expected SNR in this exposure is SNR = 2.4164 (per resolution element) at wavelength 1310.00 A ------------------------------------------------------------------------------------------------------------------------------------ 18431( 4) - 27-Aug-2026 16:08:46 - [ 15] 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 | ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ G7O 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE G7O 2 COS/FUV TIME-TA PSA G130M 1222 none none none none 1 N/A G G7O 3 COS/FUV TIME-TA PSA G130M 1222 none none none none 2 N/A G G7O 4 COS/FUV TIME-TA PSA G130M 1222 none none none none 3 N/A G G7O 5 COS/FUV TIME-TA PSA G130M 1222 none none none none 4 N/A G G7O 6 COS/FUV TIME-TA PSA G130M 1222 none none none none 5 N/A G 18431( 4) - 27-Aug-2026 16:08:46 - [ 16] Visit: 08 (G8O) Visit Requirements: PCS MODE FINE; SCHED 100% 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 G8O COS/NUV ACQ/IMA PSA MIRRORA 1 2 S (2 S) GE ------------------------------------------------------------------------------------------------------------------------------------ 2 G8O COS/FUV TIME-TA PSA G130M 1222 FP-POS=1, BUFFER-TIME=13586, 1 1967 S G LIFETIME-POS=LP7, SEGMENT=BOTH (1967 S) Comments: BFT=20, 379 BT=2/3*BFT=13586 expected SNR in this exposure is SNR = 2.5686 (per resolution element) at wavelength 1310.00 A ------------------------------------------------------------------------------------------------------------------------------------ 3 G8O COS/FUV TIME-TA PSA G130M 1222 FP-POS=2, BUFFER-TIME=13586, 1 2427 S G LIFETIME-POS=LP7, SEGMENT=BOTH (2427 S) Comments: BFT=20, 379 BT=2/3*BFT=13586 expected SNR in this exposure is SNR = 2.8532 (per resolution element) at wavelength 1310.00 A ------------------------------------------------------------------------------------------------------------------------------------ 4 G8O COS/FUV TIME-TA PSA G130M 1222 FP-POS=3, BUFFER-TIME=13586, 1 2427 S G LIFETIME-POS=LP7, SEGMENT=BOTH (2427 S) Comments: BFT=20, 379 BT=2/3*BFT=13586 expected SNR in this exposure is SNR = 2.8532 (per resolution element) at wavelength 1310.00 A ------------------------------------------------------------------------------------------------------------------------------------ 5 G8O COS/FUV TIME-TA PSA G130M 1222 FP-POS=4, BUFFER-TIME=13586, 1 2427 S G LIFETIME-POS=LP7, SEGMENT=BOTH (2427 S) Comments: BFT=20, 379 BT=2/3*BFT=13586 expected SNR in this exposure is SNR = 2.8532 (per resolution element) at wavelength 1310.00 A ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ G8O 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE G8O 2 COS/FUV TIME-TA PSA G130M 1222 none none none none 1 N/A G 18431( 4) - 27-Aug-2026 16:08:46 - [ 17] 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 | ------------------------------------------------------------------------------------------------------------------------------------ G8O 3 COS/FUV TIME-TA PSA G130M 1222 none none none none 2 N/A G G8O 4 COS/FUV TIME-TA PSA G130M 1222 none none none none 3 N/A G G8O 5 COS/FUV TIME-TA PSA G130M 1222 none none none none 4 N/A G 18431( 4) - 27-Aug-2026 16:08:46 - [ 18] Visit: 09 (G9O_visit1) Visit Requirements: PCS MODE FINE; SCHED 100% 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 G9O COS/NUV ACQ/IMA PSA MIRRORA 1 4 S (4 S) GE ------------------------------------------------------------------------------------------------------------------------------------ 2 G9O COS/FUV TIME-TA PSA G130M 1291 FP-POS=3, BUFFER-TIME=5828, 1 2049 S G LIFETIME-POS=LP7, SEGMENT=BOTH (2049 S) Comments: BFT=8, 742 BT=2/3*BFT=5828 expected SNR in this exposure is SNR = 1.9117 (per resolution element) at wavelength 1310.00 A ------------------------------------------------------------------------------------------------------------------------------------ 3 G9O COS/FUV TIME-TA PSA G130M 1291 FP-POS=3, BUFFER-TIME=5828, 1 2427 S G LIFETIME-POS=LP7, SEGMENT=BOTH (2427 S) Comments: BFT=8, 742 BT=2/3*BFT=5828 expected SNR in this exposure is SNR = 2.0806 (per resolution element) at wavelength 1310.00 A ------------------------------------------------------------------------------------------------------------------------------------ 4 G9O COS/FUV TIME-TA PSA G130M 1291 FP-POS=4, BUFFER-TIME=5828, 1 2427 S G LIFETIME-POS=LP7, SEGMENT=BOTH (2427 S) Comments: BFT=8, 742 BT=2/3*BFT=5828 expected SNR in this exposure is SNR = 2.0806 (per resolution element) at wavelength 1310.00 A ------------------------------------------------------------------------------------------------------------------------------------ 5 G9O COS/FUV TIME-TA PSA G130M 1291 FP-POS=4, BUFFER-TIME=5828, 1 2427 S G LIFETIME-POS=LP7, SEGMENT=BOTH (2427 S) Comments: BFT=8, 742 BT=2/3*BFT=5828 expected SNR in this exposure is SNR = 2.0806 (per resolution element) at wavelength 1310.00 A ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ G9O 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE G9O 2 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 N/A G 18431( 4) - 27-Aug-2026 16:08:46 - [ 19] 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 | ------------------------------------------------------------------------------------------------------------------------------------ G9O 3 COS/FUV TIME-TA PSA G130M 1291 none none none none 2 N/A G G9O 4 COS/FUV TIME-TA PSA G130M 1291 none none none none 3 N/A G G9O 5 COS/FUV TIME-TA PSA G130M 1291 none none none none 4 N/A G 18431( 4) - 27-Aug-2026 16:08:46 - [ 20] Visit: 10 (G4O_visit2) Visit Requirements: SCHED 100% 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 G4O COS/NUV ACQ/IMA PSA MIRRORA 1 3 S (3 S) GE ------------------------------------------------------------------------------------------------------------------------------------ 2 G4O COS/FUV TIME-TA PSA G130M 1222 FP-POS=3, BUFFER-TIME=13682, 1 1965 S G LIFETIME-POS=LP7, SEGMENT=BOTH (1965 S) Comments: BFT=20, 523 BT=2/3*BFT=13682 expected SNR in this exposure is SNR = 2.3915 (per resolution element) at wavelength 1310.00 A Changed from 1096 to 1222 since the absorbing galaxy redshift is at z=0.126 and absorption below 1100A will be not detected. Science unchanged and now even more optimised. ------------------------------------------------------------------------------------------------------------------------------------ 3 G4O COS/FUV TIME-TA PSA G130M 1222 FP-POS=4, BUFFER-TIME=13682, 1 2427 S G LIFETIME-POS=LP7, SEGMENT=BOTH (2427 S) Comments: BFT=20, 523 BT=2/3*BFT=13682 expected SNR in this exposure is SNR = 2.6728 (per resolution element) at wavelength 1310.00 A Changed from 1096 to 1222 since the absorbing galaxy redshift is at z=0.126 and absorption below 1100A will be not detected. Science unchanged and now even more optimised. ------------------------------------------------------------------------------------------------------------------------------------ 4 G4O COS/FUV TIME-TA PSA G130M 1222 FP-POS=4, BUFFER-TIME=13682, 1 2427 S G LIFETIME-POS=LP7, SEGMENT=BOTH (2427 S) Comments: BFT=20, 523 BT=2/3*BFT=13682 expected SNR in this exposure is SNR = 2.6728 (per resolution element) at wavelength 1310.00 A Changed from 1096 to 1222 since the absorbing galaxy redshift is at z=0.126 and absorption below 1100A will be not detected. Science unchanged and now even more optimised. ------------------------------------------------------------------------------------------------------------------------------------ 18431( 4) - 27-Aug-2026 16:08:46 - [ 21] 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 | ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ G4O 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE G4O 2 COS/FUV TIME-TA PSA G130M 1222 none none none none 1 N/A G G4O 3 COS/FUV TIME-TA PSA G130M 1222 none none none none 2 N/A G G4O 4 COS/FUV TIME-TA PSA G130M 1222 none none none none 3 N/A G 18431( 4) - 27-Aug-2026 16:08:46 - [ 22] Visit: 11 (G5O_visit2) Visit Requirements: PCS MODE FINE; SCHED 100% 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 G5O COS/NUV ACQ/IMA PSA MIRRORA 1 4 S (4 S) GE ------------------------------------------------------------------------------------------------------------------------------------ 2 G5O COS/FUV TIME-TA PSA G130M 1222 FP-POS=3, BUFFER-TIME=13675, 1 1963 S G LIFETIME-POS=LP7, SEGMENT=BOTH (1963 S) Comments: BFT=20, 512 BT=2/3*BFT=13675 expected SNR in this exposure is SNR = 2.2650 (per resolution element) at wavelength 1310.00 A ------------------------------------------------------------------------------------------------------------------------------------ 3 G5O COS/FUV TIME-TA PSA G130M 1222 FP-POS=4, BUFFER-TIME=13675, 1 2427 S G LIFETIME-POS=LP7, SEGMENT=BOTH (2427 S) Comments: BFT=20, 512 BT=2/3*BFT=13675 expected SNR in this exposure is SNR = 2.5185 (per resolution element) at wavelength 1310.00 A ------------------------------------------------------------------------------------------------------------------------------------ 4 G5O COS/FUV TIME-TA PSA G130M 1222 FP-POS=4, BUFFER-TIME=13675, 1 2427 S G LIFETIME-POS=LP7, SEGMENT=BOTH (2427 S) Comments: BFT=20, 512 BT=2/3*BFT=13675 expected SNR in this exposure is SNR = 2.5185 (per resolution element) at wavelength 1310.00 A ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ G5O 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE G5O 2 COS/FUV TIME-TA PSA G130M 1222 none none none none 1 N/A G G5O 3 COS/FUV TIME-TA PSA G130M 1222 none none none none 2 N/A G G5O 4 COS/FUV TIME-TA PSA G130M 1222 none none none none 3 N/A G 18431( 4) - 27-Aug-2026 16:08:46 - [ 23] Visit: 12 (G9O_visit2) Visit Requirements: PCS MODE FINE; SCHED 100% 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 G9O COS/NUV ACQ/IMA PSA MIRRORA 1 4 S (4 S) GE ------------------------------------------------------------------------------------------------------------------------------------ 2 G9O COS/FUV TIME-TA PSA G130M 1291 FP-POS=3, BUFFER-TIME=5828, 1 2049 S G LIFETIME-POS=LP7, SEGMENT=BOTH (2049 S) Comments: BFT=8, 742 BT=2/3*BFT=5828 expected SNR in this exposure is SNR = 1.9117 (per resolution element) at wavelength 1310.00 A ------------------------------------------------------------------------------------------------------------------------------------ 3 G9O COS/FUV TIME-TA PSA G130M 1291 FP-POS=4, BUFFER-TIME=5828, 1 2427 S G LIFETIME-POS=LP7, SEGMENT=BOTH (2427 S) Comments: BFT=8, 742 BT=2/3*BFT=5828 expected SNR in this exposure is SNR = 2.0806 (per resolution element) at wavelength 1310.00 A ------------------------------------------------------------------------------------------------------------------------------------ 4 G9O COS/FUV TIME-TA PSA G130M 1291 FP-POS=4, BUFFER-TIME=5828, 1 2427 S G LIFETIME-POS=LP7, SEGMENT=BOTH (2427 S) Comments: BFT=8, 742 BT=2/3*BFT=5828 expected SNR in this exposure is SNR = 2.0806 (per resolution element) at wavelength 1310.00 A ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ G9O 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE G9O 2 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 N/A G G9O 3 COS/FUV TIME-TA PSA G130M 1291 none none none none 2 N/A G G9O 4 COS/FUV TIME-TA PSA G130M 1291 none none none none 3 N/A G 18431( 4) - 27-Aug-2026 16:08:46 - [ 24] Visit: 13 (G6O) Visit Requirements: SCHED 100% 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 G6O COS/NUV ACQ/IMA PSA MIRRORA 1 2 S (2 S) GE ------------------------------------------------------------------------------------------------------------------------------------ 2 G6O COS/FUV TIME-TA PSA G130M 1222 FP-POS=3, BUFFER-TIME=13490, 1 1967 S G LIFETIME-POS=LP7, SEGMENT=BOTH (1967 S) Comments: BFT=20, 235 BT=2/3*BFT=13490 expected SNR in this exposure is SNR = 2.5807 (per resolution element) at wavelength 1310.00 A Changed from 1096 to 1222 since the absorbing galaxy redshift is at z=0.1162 and absorption below 1100A will be not detected. Science unchanged and now even more optimised. ------------------------------------------------------------------------------------------------------------------------------------ 3 G6O COS/FUV TIME-TA PSA G130M 1222 FP-POS=4, BUFFER-TIME=13490, 1 2427 S G LIFETIME-POS=LP7, SEGMENT=BOTH (2427 S) Comments: BFT=20, 235 BT=2/3*BFT=13490 expected SNR in this exposure is SNR = 2.8666 (per resolution element) at wavelength 1310.00 A Changed from 1096 to 1222 since the absorbing galaxy redshift is at z=0.1162 and absorption below 1100A will be not detected. Science unchanged and now even more optimised. ------------------------------------------------------------------------------------------------------------------------------------ 4 G6O COS/FUV TIME-TA PSA G130M 1222 FP-POS=4, BUFFER-TIME=13490, 1 2427 S G LIFETIME-POS=LP7, SEGMENT=BOTH (2427 S) Comments: BFT=20, 235 BT=2/3*BFT=13490 expected SNR in this exposure is SNR = 2.8666 (per resolution element) at wavelength 1310.00 A Changed from 1096 to 1222 since the absorbing galaxy redshift is at z=0.1162 and absorption below 1100A will be not detected. Science unchanged and now even more optimised. ------------------------------------------------------------------------------------------------------------------------------------ 18431( 4) - 27-Aug-2026 16:08:46 - [ 25] 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 | ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ G6O 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE G6O 2 COS/FUV TIME-TA PSA G130M 1222 none none none none 1 N/A G G6O 3 COS/FUV TIME-TA PSA G130M 1222 none none none none 2 N/A G G6O 4 COS/FUV TIME-TA PSA G130M 1222 none none none none 3 N/A G 18431( 4) - 27-Aug-2026 16:08:46 - [ 26] Summary Form for Proposal 18431 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures PSA ------------------------------------------------------------------------------------------------------------------------------------ Configurations COS/FUV, COS/NUV ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ/IMAGE, TIME-TAG ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters BUFFER-TIME=11892, BUFFER-TIME=13449, BUFFER-TIME=13490, BUFFER-TIME=13586, BUFFER-TIME=13675, BUFFER-TIME=13682, BUFFER-TIME=13887, BUFFER-TIME=5163, BUFFER-TIME=5828, FP-POS=1, FP-POS=2, FP-POS=3, FP-POS=4, LIFETIME-POS=LP7, SEGMENT=BOTH ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements PCS MODE FINE, SCHED 100% ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements G130M, MIRRORA ------------------------------------------------------------------------------------------------------------------------------------ Target Names G1O, G2O, G3O, G4O, G5O, G6O, G7O, G8O, G9O ------------------------------------------------------------------------------------------------------------------------------------