16656( 10) - 28-Nov-2022 18:53:41 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 16656 Version: 10 Check-in Time: 28-Nov-2022 18:53:41 STScI Edit Number: 3 Title Early-Time UV Spectroscopy of Stripped-Envelope Supernovae: A New Window, Cycle 29 ------------------------------------------------------------------------------------ Type Cycle GO 29 ------------------------------------------------------------------------------------ Investigators Contact? PI: Prof. Alex V. Filippenko University of California - Berkeley Y CoI: Dr. Thomas G Brink University of California - Berkeley N CoI: Prof. Avishay Gal-Yam Weizmann Institute of Science N CoI: Dr. Ori Dosovitz Fox Space Telescope Science Institute N CoI: Dr. Assaf Horesh The Hebrew University N CoI: Dr. Thomas Matheson NOIRLab - (AZ) N CoI: Prof. Paolo A. Mazzali Liverpool John Moores University N CoI: Prof. Maryam Modjaz The University of Virginia N CoI: Mr. Kishore Patra University of California - Berkeley N CoI: Dr. Nathan Smith University of Arizona N CoI: Dr. Schuyler D. Van Dyk California Institute of Technology N CoI: Dr. Yi Yang University of California - Berkeley N CoI: Dr. WeiKang Zheng University of California - Berkeley N CoI: Mr. Sergiy Vasylyev University of California - Berkeley N CoI: Mr. Marc Williamson New York University N CoI: Dr. Tyler Pritchard New York University N ------------------------------------------------------------------------------------ Abstract We propose to obtain a series of three early-time UV spectra of one stripped-envelope core-collapse supernova (either a normal SN Ib or a normal SN Ic, whichever type is not observed in an approved Cycle 28 program), starting well before maximum brightness. The underlying nature of these objects, from the mass-loss process stripping the envelope to the details of the explosion mechanism, remain mysterious. Connections to gamma-ray bursts and X-ray flashes further motivate this study. Many high-redshift SNe are being found in deep transient surveys, but the ability to distinguish between thermonuclear Type Ia SNe and stripped-envelope core-collapse SNe requires thorough knowledge of the latter at UV wavelengths with a low-z object. By comparing the evolution of the spectra as the photosphere recedes to deeper layers of the ejecta with our time series of spectral models, we will gain a better understanding of the explosion mechanism and the degree of mixing during the explosion. Moreover, we should be able to determine the metal content of the progenitor's outer layers with our spectral models and compare with the measured metallicity of the environment. The heterogeneity seen in stripped-envelope SNe compels us to choose a normal SN Ib or SN Ic, objects with DIFFERENT characteristics than the ones that HST has observed in previous Cycles (SNe Ic-pec, IIb, Ibn), thereby gaining further insights into this unique class of cosmic explosion. We need to seize this opportunity now, while we have access to the space UV, and indeed the UV is an HST Cycle 29 priority. ------------------------------------------------------------------------------------ Observations Description ------------------------ 16656( 10) - 28-Nov-2022 18:53:41 - [ 2] Obtain STIS UV spectra of one bright (Vmax < 15.5 mag), nearby, stripped-envelope SN as soon as possible after discovery (preferably at t < -7 d, relative to maximum brightness), with subsequent spectra taken at intervals of 5 days, for a total of 3 epochs (6 + 5 + 6 = 17 orbits total). The cadence of the spectral observations is determined from the timescale over which significant changes are observed in ground-based optical/near-UV spectra. -------- Realtime Justification -------- This is a disruptive ToO observation of a single bright SN. However, it is not an ultra-rapid (< 2 day turnaround) ToO. We will work with STScI staff to expedite the observations, and we will try to choose an object that minimizes the time between ToO activation and observations. If we trigger 13-14 days before maximum brightness, and we have a turnaround time of 4-7 days, the first observation will commence about 10-5 days before maximum light. We will use both the STIS/CCD and MAMA detectors to provide full wavelength coverage. The CCD observations can be done during the final MAMA orbit of each epoch. The spectra of SNe change on a timescale of 1-2 days at these early phases, so we prefer that the whole spectrum be obtained in a single visit. Although visits of 6 orbits using STIS/MAMA are discouraged owing to the interfering effects of the SAA, we hope that it will be possible, as it has been in previous cycles for this program. However, if this request cannot be accommodated in Cycle 29, we request visits not more than about 1 day from each other. We understand that in Cycle 29, we are strongly encouraged to structure our observations into visits of only 1-3 orbits duration each. As noted above, we prefer durations of up to 6 orbits (6, 5, and 6 for Visits 1, 2, and 3, respectively -- separated by about 5 days) because of the temporal variability of the supernova spectrum. However, we will be fine with restructuring our program to give a combination of 2-orbit or 3-orbit visits (3+3 = 6 and 3+2 = 5; 2+2+2 = 6 would be less desirable but still doable), if those shorter "subvisits" are within 1 day of teach other. There will be a loss of S/N at a given epoch, but we could still average the UV MAMA data from two reasonably closely spaced epochs. The optical CCD spectra take just 1 orbit (or a fraction of an orbit), so we would be able to use the optical spectra directly with the corresponding UV spectra, with no mixing of dates. We have considered the impact of reduced gyro operations on our program. They will not significantly impact this program. We will need to choose a target that has a suitable observing window in the immediate future (since this is a disruptive ToO). The orientation of the field is not relevant, nor is the spatial scan speed. ------ Calibration Justification ------- Our SN, which is optically bright, will have ground-based astrometry with respect to HST guide stars accurate to better than 0.2''. Using the STIS Acquisition ETC we find acquisition times of less than 1 min for all epochs, for the 0.2'' slit. Previously, we have successfully acquired SNe with STIS in this manner. --------- Additional Comments ---------- This is a ToO proposal. We will update our Phase 2 with the supernova 16656( 10) - 28-Nov-2022 18:53:41 - [ 3] coordinates as they become available. In order to make sure there are no bright objects in the target vicinity and to estimate the target UV flux, we will obtain rapid-response Swift/UVOT observations, as we have done in the past for this program. ------------------------------------------------------------------------------------ 16656( 10) - 28-Nov-2022 18:53:41 - [ 4] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 2 SN2022WSP EXT-STAR, SUPERNOVA RA=23H00M3.5370S, J2000 V = 16.1 DEC=+15D58'42.65" Reference Frame: ICRS Extended: NO Comments: Currently V~16.1 (Oct. 4). ------------------------------------------------------------------------------------------------------------------------------------ 16656( 10) - 28-Nov-2022 18:53:41 - [ 5] TARGET LIST Generic Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Selection Criteria | Flux data No | Name | Description | | ------------------------------------------------------------------------------------------------------------------------------------ 1 SN2022X EXT-STAR, SUPERNOVA OTHER: A YOUNG STRIPPED-ENVELOPE V = 15.5 +/- 0.1 CORE COLLAPSE SUPERNOVA WITH VMAX<15.5 MAG Comments: Pending identification of a type Ib or Ic supernova identified well before maximum brightness. ------------------------------------------------------------------------------------------------------------------------------------ 16656( 10) - 28-Nov-2022 18:53:41 - [ 6] Visit: 01 Visit Requirements: BETWEEN 11-OCT-2022:00:00:00 AND 14-OCT-2022:00:00:00; ON HOLD ; TOO RESPONSE TIME 4.0D On Hold Comments: Target of Opportunity 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 SN2022WSP STIS/CCD ACQ F28X50LP MIRROR 1 2 S (2 S) GS ACQ SCENARIO BASE1BE Comments: Our SN, though UV-faint, will be optically bright. Using the STIS Acquisition ETC and the spectrum of PTF12gzk obtained in Cycle 20, we find that a 2s exposure yields a S/N > 100. ------------------------------------------------------------------------------------------------------------------------------------ 2 SN2022WSP STIS/NUV ACCUM 52X0.2 G230L 2376 1 3000 S -MAMA see below (2286 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SN2022WSP STIS/NUV ACCUM 52X0.2 G230L 2376 1 3000 S -MAMA see below (2736 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 SN2022WSP STIS/NUV ACCUM 52X0.2 G230L 2376 1 3000 S -MAMA see below (2736 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 SN2022WSP STIS/CCD ACQ/PEA 52X0.1 MIRROR 1 5 S (5 S) K ------------------------------------------------------------------------------------------------------------------------------------ 6 SN2022WSP STIS/NUV ACCUM 52X0.2 G230L 2376 1 3000 S -MAMA see below (2025 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 SN2022WSP STIS/NUV ACCUM 52X0.2 G230L 2376 1 3000 S -MAMA see below (2736 S) ------------------------------------------------------------------------------------------------------------------------------------ 8 SN2022WSP STIS/NUV ACCUM 52X0.2 G230L 2376 1 3000 S -MAMA see below (953 S) ------------------------------------------------------------------------------------------------------------------------------------ 9 SN2022WSP STIS/CCD ACCUM 52X0.2E1 G430L 4300 1 200 S see below (800 S) ------------------------------------------------------------------------------------------------------------------------------------ 10 SN2022WSP STIS/CCD ACCUM 52X0.2E1 G750L 7751 1 100 S see below (400 S) ------------------------------------------------------------------------------------------------------------------------------------ 16656( 10) - 28-Nov-2022 18:53:41 - [ 7] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 11 CCDFLAT STIS/CCD ACCUM 52X0.1 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 | ------------------------------------------------------------------------------------------------------------------------------------ SN2022WSP 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A SN2022WSP 2 STIS/NUV ACCUM 52X0.2 G230L 2376 none none none none 1 2286.0 S -MAMA SN2022WSP 3 STIS/NUV ACCUM 52X0.2 G230L 2376 none none none none 2 2736.0 S -MAMA SN2022WSP 4 STIS/NUV ACCUM 52X0.2 G230L 2376 none none none none 3 2736.0 S -MAMA SN2022WSP 5 STIS/CCD ACQ/PEA 52X0.1 MIRROR none none none none 4 N/A K SN2022WSP 6 STIS/NUV ACCUM 52X0.2 G230L 2376 none none none none 4 2025.0 S -MAMA SN2022WSP 7 STIS/NUV ACCUM 52X0.2 G230L 2376 none none none none 5 2736.0 S -MAMA SN2022WSP 8 STIS/NUV ACCUM 52X0.2 G230L 2376 none none none none 6 953.0 S -MAMA SN2022WSP 9 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 1 6 400.0 S SN2022WSP 9 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 2 6 400.0 S SN2022WSP 10 STIS/CCD ACCUM 52X0.2E1 G750L 7751 none none none 1 6 200.0 S SN2022WSP 10 STIS/CCD ACCUM 52X0.2E1 G750L 7751 none none none 2 6 200.0 S CCDFLAT 11 STIS/CCD ACCUM 52X0.1 G750L 7751 none none 1 none 6 N/A CCDFLAT 11 STIS/CCD ACCUM 52X0.1 G750L 7751 none none 2 none 6 N/A 16656( 10) - 28-Nov-2022 18:53:41 - [ 8] Visit: 02 Visit Requirements: BEFORE 11-JAN-2023:00:00:00 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 SN2022WSP STIS/CCD ACQ F28X50LP MIRROR 1 2 S (2 S) GS ACQ SCENARIO BASE1BE Comments: Our SN, though UV-faint, will be optically bright. Using the STIS Acquisition ETC and the spectrum of PTF12gzk obtained in Cycle 20, we find that a 2s exposure yields a S/N > 100. ------------------------------------------------------------------------------------------------------------------------------------ 2 SN2022WSP STIS/NUV ACCUM 52X0.2 G230L 2376 1 3000 S -MAMA see below (2286 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SN2022WSP STIS/NUV ACCUM 52X0.2 G230L 2376 1 3000 S -MAMA see below (2736 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 SN2022WSP STIS/NUV ACCUM 52X0.2 G230L 2376 1 3000 S -MAMA see below (2736 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 SN2022WSP STIS/CCD ACQ/PEA 52X0.1 MIRROR 1 5 S (5 S) K ------------------------------------------------------------------------------------------------------------------------------------ 6 SN2022WSP STIS/NUV ACCUM 52X0.2 G230L 2376 1 3000 S -MAMA see below (2025 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 SN2022WSP STIS/CCD ACCUM 52X0.2E1 G430L 4300 1 200 S see below (1585 S) ------------------------------------------------------------------------------------------------------------------------------------ 8 SN2022WSP STIS/CCD ACCUM 52X0.2E1 G750L 7751 1 100 S see below (792 S) ------------------------------------------------------------------------------------------------------------------------------------ 9 CCDFLAT STIS/CCD ACCUM 52X0.1 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 | ------------------------------------------------------------------------------------------------------------------------------------ 16656( 10) - 28-Nov-2022 18:53:41 - [ 9] 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 | ------------------------------------------------------------------------------------------------------------------------------------ SN2022WSP 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A SN2022WSP 2 STIS/NUV ACCUM 52X0.2 G230L 2376 none none none none 1 2286.0 S -MAMA SN2022WSP 3 STIS/NUV ACCUM 52X0.2 G230L 2376 none none none none 2 2736.0 S -MAMA SN2022WSP 4 STIS/NUV ACCUM 52X0.2 G230L 2376 none none none none 3 2736.0 S -MAMA SN2022WSP 5 STIS/CCD ACQ/PEA 52X0.1 MIRROR none none none none 4 N/A K SN2022WSP 6 STIS/NUV ACCUM 52X0.2 G230L 2376 none none none none 4 2025.0 S -MAMA SN2022WSP 7 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 1 5 793.0 S SN2022WSP 7 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 2 5 792.0 S SN2022WSP 8 STIS/CCD ACCUM 52X0.2E1 G750L 7751 none none none 1 5 396.0 S SN2022WSP 8 STIS/CCD ACCUM 52X0.2E1 G750L 7751 none none none 2 5 396.0 S CCDFLAT 9 STIS/CCD ACCUM 52X0.1 G750L 7751 none none 1 none 5 N/A CCDFLAT 9 STIS/CCD ACCUM 52X0.1 G750L 7751 none none 2 none 5 N/A 16656( 10) - 28-Nov-2022 18:53:41 - [ 10] Visit: 03 Visit Requirements: AFTER 02 BY 3 D TO 7 D; ON HOLD On Hold Comments: Target of Opportunity 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 SN2022WSP STIS/CCD ACQ F28X50LP MIRROR 1 2 S (2 S) GS ACQ SCENARIO BASE1BE Comments: Our SN, though UV-faint, will be optically bright. Using the STIS Acquisition ETC and the spectrum of PTF12gzk obtained in Cycle 20, we find that a 2s exposure yields a S/N > 100. ------------------------------------------------------------------------------------------------------------------------------------ 2 SN2022WSP STIS/NUV ACCUM 52X0.2 G230L 2376 1 3000 S -MAMA see below (2286 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SN2022WSP STIS/NUV ACCUM 52X0.2 G230L 2376 1 3000 S -MAMA see below (2736 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 SN2022WSP STIS/NUV ACCUM 52X0.2 G230L 2376 1 3000 S -MAMA see below (2736 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 SN2022WSP STIS/CCD ACQ/PEA 52X0.1 MIRROR 1 5 S (5 S) K ------------------------------------------------------------------------------------------------------------------------------------ 6 SN2022WSP STIS/NUV ACCUM 52X0.2 G230L 2376 1 3000 S -MAMA see below (2025 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 SN2022WSP STIS/NUV ACCUM 52X0.2 G230L 2376 1 3000 S -MAMA see below (2736 S) ------------------------------------------------------------------------------------------------------------------------------------ 8 SN2022WSP STIS/NUV ACCUM 52X0.2 G230L 2376 1 3000 S -MAMA see below (953 S) ------------------------------------------------------------------------------------------------------------------------------------ 9 SN2022WSP STIS/CCD ACCUM 52X0.2E1 G430L 4300 1 200 S see below (800 S) ------------------------------------------------------------------------------------------------------------------------------------ 10 SN2022WSP STIS/CCD ACCUM 52X0.2E1 G750L 7751 1 100 S see below (400 S) ------------------------------------------------------------------------------------------------------------------------------------ 16656( 10) - 28-Nov-2022 18:53:41 - [ 11] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 11 CCDFLAT STIS/CCD ACCUM 52X0.1 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 | ------------------------------------------------------------------------------------------------------------------------------------ SN2022WSP 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A SN2022WSP 2 STIS/NUV ACCUM 52X0.2 G230L 2376 none none none none 1 2286.0 S -MAMA SN2022WSP 3 STIS/NUV ACCUM 52X0.2 G230L 2376 none none none none 2 2736.0 S -MAMA SN2022WSP 4 STIS/NUV ACCUM 52X0.2 G230L 2376 none none none none 3 2736.0 S -MAMA SN2022WSP 5 STIS/CCD ACQ/PEA 52X0.1 MIRROR none none none none 4 N/A K SN2022WSP 6 STIS/NUV ACCUM 52X0.2 G230L 2376 none none none none 4 2025.0 S -MAMA SN2022WSP 7 STIS/NUV ACCUM 52X0.2 G230L 2376 none none none none 5 2736.0 S -MAMA SN2022WSP 8 STIS/NUV ACCUM 52X0.2 G230L 2376 none none none none 6 953.0 S -MAMA SN2022WSP 9 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 1 6 400 S SN2022WSP 9 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 2 6 400 S SN2022WSP 10 STIS/CCD ACCUM 52X0.2E1 G750L 7751 none none none 1 6 200 S SN2022WSP 10 STIS/CCD ACCUM 52X0.2E1 G750L 7751 none none none 2 6 200 S CCDFLAT 11 STIS/CCD ACCUM 52X0.1 G750L 7751 none none 1 none 6 N/A CCDFLAT 11 STIS/CCD ACCUM 52X0.1 G750L 7751 none none 2 none 6 N/A 16656( 10) - 28-Nov-2022 18:53:41 - [ 12] Visit: 22 Visit Requirements: BEFORE 11-JAN-2023:00:00:00 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 SN2022WSP STIS/CCD ACQ F28X50LP MIRROR 1 2 S (2 S) GS ACQ SCENARIO BASE1BE Comments: Our SN, though UV-faint, will be optically bright. Using the STIS Acquisition ETC and the spectrum of PTF12gzk obtained in Cycle 20, we find that a 2s exposure yields a S/N > 100. ------------------------------------------------------------------------------------------------------------------------------------ 2 SN2022WSP STIS/NUV ACCUM 52X0.2 G230L 2376 1 3000 S -MAMA see below (2286 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SN2022WSP STIS/NUV ACCUM 52X0.2 G230L 2376 1 3000 S -MAMA see below (2736 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 SN2022WSP STIS/NUV ACCUM 52X0.2 G230L 2376 1 3000 S -MAMA see below (2736 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 SN2022WSP STIS/CCD ACQ/PEA 52X0.1 MIRROR 1 5 S (5 S) K ------------------------------------------------------------------------------------------------------------------------------------ 6 SN2022WSP STIS/NUV ACCUM 52X0.2 G230L 2376 1 3000 S -MAMA see below (2025 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 SN2022WSP STIS/CCD ACCUM 52X0.2E1 G430L 4300 1 200 S see below (1585 S) ------------------------------------------------------------------------------------------------------------------------------------ 8 SN2022WSP STIS/CCD ACCUM 52X0.2E1 G750L 7751 1 100 S see below (792 S) ------------------------------------------------------------------------------------------------------------------------------------ 9 CCDFLAT STIS/CCD ACCUM 52X0.1 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 | ------------------------------------------------------------------------------------------------------------------------------------ 16656( 10) - 28-Nov-2022 18:53:41 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SN2022WSP 1 STIS/CCD ACQ F28X50LP MIRROR none none none none 1 N/A SN2022WSP 2 STIS/NUV ACCUM 52X0.2 G230L 2376 none none none none 1 2286.0 S -MAMA SN2022WSP 3 STIS/NUV ACCUM 52X0.2 G230L 2376 none none none none 2 2736.0 S -MAMA SN2022WSP 4 STIS/NUV ACCUM 52X0.2 G230L 2376 none none none none 3 2736.0 S -MAMA SN2022WSP 5 STIS/CCD ACQ/PEA 52X0.1 MIRROR none none none none 4 N/A K SN2022WSP 6 STIS/NUV ACCUM 52X0.2 G230L 2376 none none none none 4 2025.0 S -MAMA SN2022WSP 7 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 1 5 793.0 S SN2022WSP 7 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 2 5 792.0 S SN2022WSP 8 STIS/CCD ACCUM 52X0.2E1 G750L 7751 none none none 1 5 396.0 S SN2022WSP 8 STIS/CCD ACCUM 52X0.2E1 G750L 7751 none none none 2 5 396.0 S CCDFLAT 9 STIS/CCD ACCUM 52X0.1 G750L 7751 none none 1 none 5 N/A CCDFLAT 9 STIS/CCD ACCUM 52X0.1 G750L 7751 none none 2 none 5 N/A 16656( 10) - 28-Nov-2022 18:53:41 - [ 14] Summary Form for Proposal 16656 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures 52X0.1, 52X0.2, 52X0.2E1, F28X50LP ------------------------------------------------------------------------------------------------------------------------------------ Configurations STIS/CCD, STIS/NUV-MAMA ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, ACQ, ACQ/PEAK ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements AFTER 02 BY 3 D TO 7 D, BEFORE 11-JAN-2023:00:00:00, BETWEEN 11-OCT-2022:00:00:00 AND 14-OCT-2022:00:00:00, GS ACQ SCENARIO BASE1BE, ON HOLD , TOO RESPONSE TIME 4.0D ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements G230L, G430L, G750L, MIRROR ------------------------------------------------------------------------------------------------------------------------------------ Target Names CCDFLAT, SN2022WSP ------------------------------------------------------------------------------------------------------------------------------------