16767( 3) - 04-Oct-2021 19:34:26 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 16767 Version: 3 Check-in Time: 04-Oct-2021 19:34:26 STScI Edit Number: 0 Title A Family Portrait of the O Stars in the Extremely Metal-Poor Galaxy Sextans A ------------------------------------------------------------------------------------ Type Cycle GO 29 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Grace Telford Rutgers the State University of New Jersey Y CoI: Dr. John Chisholm University of Texas at Austin N CoI: Dr. Kristen B W McQuinn Rutgers the State University of New Jersey N CoI: Dr. Danielle Berg University of Texas at Austin N ------------------------------------------------------------------------------------ Abstract Low-metallicity massive stars may have reionized the universe at z > 6. Yet, their contribution to the ionizing photon budget remains unconstrained and can only be estimated from stellar models. The predicted ionizing flux is highly sensitive to theoretical mass-loss rates and metal opacities, but these have never been observationally determined below the metallicity of the SMC (20% solar). Observations of individually resolved, metal-poor O stars spanning a range of masses and evolutionary stages are needed to determine the contribution of high-redshift galaxies to cosmic reionization. Sextans A is the only nearby dwarf galaxy substantially more metal-poor than the SMC that hosts more than a few known O stars. Five have already been observed by COS and two more will be observed by ULLYSES, but these do not sample the full range of spectral types and luminosity classes. We propose new G130M and G160M COS observations of two late-O (super)giants that sample new parameter space. For the first time at 6% solar metallicity, the combined new and archival COS data will enable us to (1) empirically determine the photospheric metal opacities that set ionizing photon production; (2) measure mass-loss rates as a function of spectral type to improve the purely theoretical mass-loss prescriptions that underlie stellar evolution models; and (3) produce new stellar spectral templates tailored to the FUV observations that will be ideally suited to modeling the ionizing spectra of galaxies during the epoch of reionization. The proposed observations are urgently needed to interpret upcoming JWST campaigns at high redshift and can only be done with HST/COS. ------------------------------------------------------------------------------------ Observations Description ------------------------ Here we plan observations of two O stars in the nearby, metal-poor galaxy Sextans A with the Cosmic Origins Spectrograph. We will use both the G130M and G160M gratings to get continuous coverage of important stellar wind and photospheric features to determine the mass-loss rates and abundances of these giant and supergiant O stars to constrain their output of ionizing photons. We obtained initial coordinates by locating the target stars in HST imaging with updated WCS information aligned to Gaia DR2. We then identified the target stars in the Gaia catalog and adopted the coordinates reported by Gaia for 16767( 3) - 04-Oct-2021 19:34:26 - [ 2] these observations. Gaia reports astrometric uncertainties less than 1 mas, but we conservatively estimate uncertainties of 0.01-0.02 arcsec. We estimate exposure times using the NUV F275W magnitude for one target star and the V-band magnitude for the other target, which is not covered by NUV HST imaging. We adopt conservative estimates of interstellar reddening assuming intrinsically blue colors typical of these spectral types and use the Bruzual O9 III spectral template in the COS ETC. We have tested various late-O giant and supergiant stellar templates in the COS ETC and confirm that the estimated exposure times will achieve SNR ~ 10 per resolution element near key wind features. We use these estimates of exposure times for both target acquisition and spectroscopic observations. All BUFFER-TIMES are 2/3 times the values reported by the COS ETC. We will use the ACQ/IMAGE mode with the PSA and Mirror A for target acquisition. All our observations satisfy the BOT safety standards. We organize the observations into visits of at most 3 orbits, as strongly encouraged for Cycle 29 observations. For all spectroscopic observations, we use TIME-TAG mode with FLASH=YES and SEGMENT=BOTH. We use the G130M grating with the 1291 central wavelength to cover the N V 1240, O V 1371, and Si IV 1400 stellar wind profiles. The G130M configuration only uses FP=3, 4 configurations to satisfy the COS2025 restrictions. We also use the G160M grating with the 1600 central wavelength to cover the Fe V 1428, S V 1502, C IV 1550, He II 1640, and N IV 1719 stellar wind and photospheric profiles. We use FP=All for the G160M observations to extend the possible wavelength coverage. ------------------------------------------------------------------------------------ 16767( 3) - 04-Oct-2021 19:34:26 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 SA1 EXT-STAR, SUPERGIANT O RA=10H11M4.7698S +/- 0.01", J2000 V = 20.68 DEC=-04D42'24.24" +/- 0.01" Reference Frame: ICRS Extended: NO ------------------------------------------------------------------------------------------------------------------------------------ 2 SA2 EXT-STAR, GIANT O RA=10H10M56.8453S +/- 0.02", J2000 V = 20.4 F275W = 18.26 DEC=-04D40'40.90" +/- 0.02" Reference Frame: ICRS Extended: NO ------------------------------------------------------------------------------------------------------------------------------------ 16767( 3) - 04-Oct-2021 19:34:26 - [ 4] Visit: 01 (SA1-G130M) Visit Requirements: 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 SA1 COS/NUV ACQ/IMA PSA MIRRORA 1 20.1 S GE (20.1 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SA1 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=5408, FP-POS=3, 1 2394 S G FLASH=YES, SEGMENT=BOTH (2394 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SA1 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=4684, FP-POS=3, 1 2686 S G FLASH=YES, SEGMENT=BOTH (2686 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 SA1 COS/FUV TIME-TA PSA G130M 1291 FP-POS=4, BUFFER-TIME=5408, 1 2686 S G FLASH=YES, SEGMENT=BOTH (2686 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 | ------------------------------------------------------------------------------------------------------------------------------------ SA1 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE SA1 2 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 N/A G SA1 3 COS/FUV TIME-TA PSA G130M 1291 none none none none 2 N/A G SA1 4 COS/FUV TIME-TA PSA G130M 1291 none none none none 3 N/A G 16767( 3) - 04-Oct-2021 19:34:26 - [ 5] Visit: 02 (SA1-G130M) Visit Requirements: 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 SA1 COS/NUV ACQ/IMA PSA MIRRORA 1 20.1 S GE (20.1 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SA1 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=5408, FP-POS=3, 1 2406 S G FLASH=YES, SEGMENT=BOTH see below (2394 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SA1 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=5408, FP-POS=4, 1 2000 S G FLASH=YES, SEGMENT=BOTH see below (2686 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 | ------------------------------------------------------------------------------------------------------------------------------------ SA1 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE SA1 2 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 2394.0 S G SA1 3 COS/FUV TIME-TA PSA G130M 1291 none none none none 2 2686.0 S G 16767( 3) - 04-Oct-2021 19:34:26 - [ 6] Visit: 03 (SA1-G160M) Visit Requirements: 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 SA1 COS/NUV ACQ/IMA PSA MIRRORA 1 20.1 S GE (20.1 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SA1 COS/FUV TIME-TA PSA G160M 1600 BUFFER-TIME=10000, FP-POS=1, 1 2348 S G FLASH=YES, SEGMENT=BOTH (2348 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SA1 COS/FUV TIME-TA PSA G160M 1600 BUFFER-TIME=10000, FP-POS=2, 1 2686 S G FLASH=YES, SEGMENT=BOTH (2686 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 SA1 COS/FUV TIME-TA PSA G160M 1600 BUFFER-TIME=10000, FP-POS=3, 1 2686 S G FLASH=YES, SEGMENT=BOTH (2686 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 | ------------------------------------------------------------------------------------------------------------------------------------ SA1 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE SA1 2 COS/FUV TIME-TA PSA G160M 1600 none none none none 1 N/A G SA1 3 COS/FUV TIME-TA PSA G160M 1600 none none none none 2 N/A G SA1 4 COS/FUV TIME-TA PSA G160M 1600 none none none none 3 N/A G 16767( 3) - 04-Oct-2021 19:34:26 - [ 7] Visit: 04 (SA1-G160M) Visit Requirements: 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 SA1 COS/NUV ACQ/IMA PSA MIRRORA 1 20.1 S GE (20.1 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SA1 COS/FUV TIME-TA PSA G160M 1600 BUFFER-TIME=10000, FP-POS=2, 1 2348 S G FLASH=YES, SEGMENT=BOTH (2348 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SA1 COS/FUV TIME-TA PSA G160M 1600 BUFFER-TIME=10000, FP-POS=3, 1 2686 S G FLASH=YES, SEGMENT=BOTH (2686 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 SA1 COS/FUV TIME-TA PSA G160M 1600 BUFFER-TIME=10000, FP-POS=4, 1 2686 S G FLASH=YES, SEGMENT=BOTH (2686 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 | ------------------------------------------------------------------------------------------------------------------------------------ SA1 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE SA1 2 COS/FUV TIME-TA PSA G160M 1600 none none none none 1 N/A G SA1 3 COS/FUV TIME-TA PSA G160M 1600 none none none none 2 N/A G SA1 4 COS/FUV TIME-TA PSA G160M 1600 none none none none 3 N/A G 16767( 3) - 04-Oct-2021 19:34:26 - [ 8] Visit: 05 (SA1-G160M) Visit Requirements: 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 SA1 COS/NUV ACQ/IMA PSA MIRRORA 1 20.1 S GE (20.1 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SA1 COS/FUV TIME-TA PSA G160M 1600 BUFFER-TIME=10000, FP-POS=1, 1 2348 S G FLASH=YES, SEGMENT=BOTH (2348 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SA1 COS/FUV TIME-TA PSA G160M 1600 BUFFER-TIME=10000, FP-POS=3, 1 2686 S G FLASH=YES, SEGMENT=BOTH (2686 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 SA1 COS/FUV TIME-TA PSA G160M 1600 BUFFER-TIME=10000, FP-POS=4, 1 2686 S G FLASH=YES, SEGMENT=BOTH (2686 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 | ------------------------------------------------------------------------------------------------------------------------------------ SA1 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE SA1 2 COS/FUV TIME-TA PSA G160M 1600 none none none none 1 N/A G SA1 3 COS/FUV TIME-TA PSA G160M 1600 none none none none 2 N/A G SA1 4 COS/FUV TIME-TA PSA G160M 1600 none none none none 3 N/A G 16767( 3) - 04-Oct-2021 19:34:26 - [ 9] Visit: 06 (SA1-G160M) Visit Requirements: 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 SA1 COS/NUV ACQ/IMA PSA MIRRORA 1 20.1 S GE (20.1 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SA1 COS/FUV TIME-TA PSA G160M 1600 BUFFER-TIME=10000, FP-POS=1, 1 2348 S G FLASH=YES, SEGMENT=BOTH (2348 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SA1 COS/FUV TIME-TA PSA G160M 1600 BUFFER-TIME=10000, FP-POS=2, 1 2686 S G FLASH=YES, SEGMENT=BOTH (2686 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 | ------------------------------------------------------------------------------------------------------------------------------------ SA1 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE SA1 2 COS/FUV TIME-TA PSA G160M 1600 none none none none 1 N/A G SA1 3 COS/FUV TIME-TA PSA G160M 1600 none none none none 2 N/A G 16767( 3) - 04-Oct-2021 19:34:26 - [ 10] Visit: 07 (SA1-G160M) Visit Requirements: 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 SA1 COS/NUV ACQ/IMA PSA MIRRORA 1 20.1 S GE (20.1 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SA1 COS/FUV TIME-TA PSA G160M 1600 BUFFER-TIME=10000, FP-POS=1, 1 2348 S G FLASH=YES, SEGMENT=BOTH (2348 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SA1 COS/FUV TIME-TA PSA G160M 1600 BUFFER-TIME=10000, FP-POS=4, 1 2686 S G FLASH=YES, SEGMENT=BOTH (2686 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 | ------------------------------------------------------------------------------------------------------------------------------------ SA1 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE SA1 2 COS/FUV TIME-TA PSA G160M 1600 none none none none 1 N/A G SA1 3 COS/FUV TIME-TA PSA G160M 1600 none none none none 2 N/A G 16767( 3) - 04-Oct-2021 19:34:26 - [ 11] Visit: 08 (SA2-G130M) Visit Requirements: 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 SA2 COS/NUV ACQ/IMA PSA MIRRORA 1 15.3 S GE (15.3 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SA2 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=5233, FP-POS=3, 1 2404 S G FLASH=YES, SEGMENT=BOTH (2404 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SA2 COS/FUV TIME-TA PSA G130M 1291 FP-POS=4, BUFFER-TIME=5233, 1 2686 S G FLASH=YES, SEGMENT=BOTH (2686 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 | ------------------------------------------------------------------------------------------------------------------------------------ SA2 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE SA2 2 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 N/A G SA2 3 COS/FUV TIME-TA PSA G130M 1291 none none none none 2 N/A G 16767( 3) - 04-Oct-2021 19:34:26 - [ 12] Visit: 09 (SA2-G130M) Visit Requirements: 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 SA2 COS/NUV ACQ/IMA PSA MIRRORA 1 15.3 S GE (15.3 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SA2 COS/FUV TIME-TA PSA G130M 1291 BUFFER-TIME=5233, FP-POS=3, 1 2404 S G FLASH=YES, SEGMENT=BOTH (2404 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SA2 COS/FUV TIME-TA PSA G130M 1291 FP-POS=4, BUFFER-TIME=5233, 1 2686 S G FLASH=YES, SEGMENT=BOTH (2686 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 | ------------------------------------------------------------------------------------------------------------------------------------ SA2 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE SA2 2 COS/FUV TIME-TA PSA G130M 1291 none none none none 1 N/A G SA2 3 COS/FUV TIME-TA PSA G130M 1291 none none none none 2 N/A G 16767( 3) - 04-Oct-2021 19:34:26 - [ 13] Visit: 10 (SA2-G160M) Visit Requirements: 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 SA2 COS/NUV ACQ/IMA PSA MIRRORA 1 15.3 S GE (15.3 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SA2 COS/FUV TIME-TA PSA G160M 1600 BUFFER-TIME=10000, FP-POS=1, 1 2358 S G FLASH=YES, SEGMENT=BOTH (2358 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SA2 COS/FUV TIME-TA PSA G160M 1600 BUFFER-TIME=10000, FP-POS=2, 1 2686 S G FLASH=YES, SEGMENT=BOTH (2686 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 SA2 COS/FUV TIME-TA PSA G160M 1600 BUFFER-TIME=10000, FP-POS=3, 1 2686 S G FLASH=YES, SEGMENT=BOTH (2686 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 | ------------------------------------------------------------------------------------------------------------------------------------ SA2 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE SA2 2 COS/FUV TIME-TA PSA G160M 1600 none none none none 1 N/A G SA2 3 COS/FUV TIME-TA PSA G160M 1600 none none none none 2 N/A G SA2 4 COS/FUV TIME-TA PSA G160M 1600 none none none none 3 N/A G 16767( 3) - 04-Oct-2021 19:34:26 - [ 14] Visit: 11 (SA2-G160M) Visit Requirements: 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 SA2 COS/NUV ACQ/IMA PSA MIRRORA 1 15.3 S GE (15.3 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SA2 COS/FUV TIME-TA PSA G160M 1600 BUFFER-TIME=10000, FP-POS=2, 1 2358 S G FLASH=YES, SEGMENT=BOTH (2358 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SA2 COS/FUV TIME-TA PSA G160M 1600 BUFFER-TIME=10000, FP-POS=3, 1 2686 S G FLASH=YES, SEGMENT=BOTH (2686 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 SA2 COS/FUV TIME-TA PSA G160M 1600 BUFFER-TIME=10000, FP-POS=4, 1 2686 S G FLASH=YES, SEGMENT=BOTH (2686 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 | ------------------------------------------------------------------------------------------------------------------------------------ SA2 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE SA2 2 COS/FUV TIME-TA PSA G160M 1600 none none none none 1 N/A G SA2 3 COS/FUV TIME-TA PSA G160M 1600 none none none none 2 N/A G SA2 4 COS/FUV TIME-TA PSA G160M 1600 none none none none 3 N/A G 16767( 3) - 04-Oct-2021 19:34:26 - [ 15] Visit: 12 (SA2-G160M) Visit Requirements: 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 SA2 COS/NUV ACQ/IMA PSA MIRRORA 1 15.3 S GE (15.3 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SA2 COS/FUV TIME-TA PSA G160M 1600 BUFFER-TIME=10000, FP-POS=1, 1 2358 S G FLASH=YES, SEGMENT=BOTH (2358 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SA2 COS/FUV TIME-TA PSA G160M 1600 BUFFER-TIME=10000, FP-POS=2, 1 2686 S G FLASH=YES, SEGMENT=BOTH (2686 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 | ------------------------------------------------------------------------------------------------------------------------------------ SA2 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE SA2 2 COS/FUV TIME-TA PSA G160M 1600 none none none none 1 N/A G SA2 3 COS/FUV TIME-TA PSA G160M 1600 none none none none 2 N/A G 16767( 3) - 04-Oct-2021 19:34:26 - [ 16] Visit: 13 (SA2-G160M) Visit Requirements: 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 SA2 COS/NUV ACQ/IMA PSA MIRRORA 1 15.3 S GE (15.3 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 SA2 COS/FUV TIME-TA PSA G160M 1600 BUFFER-TIME=10000, FP-POS=1, 1 2358 S G FLASH=YES, SEGMENT=BOTH (2358 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SA2 COS/FUV TIME-TA PSA G160M 1600 BUFFER-TIME=10000, FP-POS=4, 1 2686 S G FLASH=YES, SEGMENT=BOTH (2686 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 | ------------------------------------------------------------------------------------------------------------------------------------ SA2 1 COS/NUV ACQ/IMA PSA MIRRORA none none none none 1 N/A GE SA2 2 COS/FUV TIME-TA PSA G160M 1600 none none none none 1 N/A G SA2 3 COS/FUV TIME-TA PSA G160M 1600 none none none none 2 N/A G 16767( 3) - 04-Oct-2021 19:34:26 - [ 17] Summary Form for Proposal 16767 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures PSA ------------------------------------------------------------------------------------------------------------------------------------ Configurations COS/FUV, COS/NUV ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ/IMAGE, TIME-TAG ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters BUFFER-TIME=10000, BUFFER-TIME=4684, BUFFER-TIME=5233, BUFFER-TIME=5408, FLASH=YES, FP-POS=1, FP-POS=2, FP-POS=3, FP-POS=4, SEGMENT=BOTH ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements G130M, G160M, MIRRORA ------------------------------------------------------------------------------------------------------------------------------------ Target Names SA1, SA2 ------------------------------------------------------------------------------------------------------------------------------------