17492( 8) - 10-Jun-2024 17:41:37 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 17492 Version: 8 Check-in Time: 10-Jun-2024 17:41:37 STScI Edit Number: 2 Title Zooming in on the locations of short gamma-ray bursts ------------------------------------------------------------------------------------ Type Cycle GO 31 ------------------------------------------------------------------------------------ Investigators Contact? PI: Brendan O'Connor Carnegie Mellon University Y CoI: Dr. Eleonora Troja Universita di Roma Tor Vergata N CoI: Dr. Andrew S. Fruchter Space Telescope Science Institute N CoI: Simone Dichiara The Pennsylvania State University N CoI: Dr. Stephen Bradley Cenko NASA Goddard Space Flight Center N CoI: Dr. C. Kouveliotou George Washington University N CoI: Dr. Taka Sakamoto Aoyama Gakuin University N ------------------------------------------------------------------------------------ Abstract The study of short duration gamma-ray bursts (sGRBs) and their host galaxies provide a unique view of the environments of gravitational wave sources. The locations of sGRBs within their hosts is the strongest constraint on fundamental properties of the progenitor systems (e.g. kick velocity, time delay), with important implications for binary stellar evolution, galactic chemical enrichment, and the expected Advanced LIGO and Virgo detection rate. HST observations of sGRBs host galaxies are the benchmark dataset against which models of neutron star (NS) mergers are tested. This dataset, affected by small number statistics in the past, is now expanding, allowing us to consider more sophisticated scenarios, such as multiple channels of binary formation and different progenitor systems. However, targeted observations of sGRBs are introducing complex selection biases. In order to mitigate these effects, we propose a public survey of well-localized sGRBs to build a high-quality homogeneous sample of sGRB locations and environments. The proposed observations, together with existing archival HST data and an extensive ground-based campaign, would form a legacy dataset for the study of compact binary mergers and their diverse evolutionary pathways. In addition, sGRBs with no coincident host galaxy in these HST images constitute excellent targets for future JWST observations. ------------------------------------------------------------------------------------ Observations Description ------------------------ This program will observe the locations of 22 short gamma-ray bursts with the WFC3/IR camera in the F160W filter in order to obtain high resolution, sensitive, infrared observations of their host galaxies. These observations will double the sample of sGRB host galaxies observed with HST and reveal accurately their locations with respect to the half-light radii of their host galaxies. In addition, we target 9 events that are observationally hostless even in deep ground based observations. These 9 targets will recieve 2 orbits in F160W to search for faint underyling host galaxies. The program will use 31 orbits - 1 orbit x 13 targets which already have known host galaxies and 2 obits x 9 targets which lack a host galaxy. ------------------------------------------------------------------------------------ 17492( 8) - 10-Jun-2024 17:41:37 - [ 2] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 GRB081226A GALAXY, SPIRAL RA=08H02M0.4500S +/- 0.2", J2000 V = 25.5 DEC=-69D01'49.50" +/- 0.2" Reference Frame: Other: J2000 Extended: YES Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2015.5 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 2 GRB230906A GALAXY, HIGH REDSHIFT RA=05H19M1.5200S +/- 0.8", J2000 V = 25.5 GALAXY DEC=-47D53'32.66" +/- 0.8" Reference Frame: Other: J2000 Extended: YES Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2015.5 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 3 GRB120804A-E GALAXY, SPIRAL RA=15H35M47.5100S +/- 0.3", J2000 V = 26 E DEC=-28D46'56.11" +/- 0.3" Reference Frame: Other: SIMBAD Extended: YES 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) 2015.5 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 4 GRB170428A GALAXY, SPIRAL RA=22H00M18.7100S +/- 0.3", J2000 V = 22.5 DEC=+26D54'56.28" +/- 0.3" Reference Frame: Other: J2000 Extended: YES Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2015.5 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 5 GRB140930B GALAXY, HIGH REDSHIFT RA=00H25M23.4400S +/- 0.5", J2000 V = 23 GALAXY, SPIRAL DEC=+24D17'41.70" +/- 0.5" Reference Frame: Other: J2000 Extended: YES Comments: A r-band ~ 13th AB magnitude star is located very close (~14") to the position of our target. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2015.5 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 6 GRB160408A GALAXY, HIGH REDSHIFT RA=08H10M29.8100S +/- 0.3", J2000 V = 26 GALAXY DEC=+71D07'43.70" +/- 0.3" Reference Frame: Other: J2000 Extended: NO Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2015.5 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 17492( 8) - 10-Jun-2024 17:41:37 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 7 GRB160410A-E GALAXY, HIGH REDSHIFT RA=10H02M44.3700S +/- 0.3", J2000 V = 27 E GALAXY DEC=+03D28'42.40" +/- 0.3" Reference Frame: Other: J2000 Extended: NO Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2015.5 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 8 GRB160411A GALAXY, HIGH REDSHIFT RA=23H17M25.3550S +/- 0.3", J2000 V = 26 GALAXY DEC=-40D14'30.56" +/- 0.3" Reference Frame: Other: J2000 Extended: NO Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2015.5 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 9 GRB160601A GALAXY, HIGH REDSHIFT RA=15H39M43.9500S +/- 0.2", J2000 V = 25.5 GALAXY DEC=+64D32'30.60" +/- 0.2" Reference Frame: Other: J2000 Extended: NO Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2015.5 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 10 GRB160927A GALAXY, HIGH REDSHIFT RA=17H04M58.2100S +/- 0.3", J2000 V = 27 GALAXY DEC=+17D19'55.10" +/- 0.3" Reference Frame: Other: J2000 Extended: NO Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2015.5 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 11 GRB161001A GALAXY, SPIRAL RA=04H47M40.7900S +/- 2", J2000 V = 23 DEC=-57D15'39.00" +/- 2" Reference Frame: Other: J2000 Extended: YES Comments: This is an XRT localized event lacking a subarcsecond position. A GROND optical afterglow position exists but the images are not available for confirmation. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2015.5 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 12 GRB161004A GALAXY, HIGH REDSHIFT RA=17H32M36.5700S +/- 1", J2000 V = 25.5 GALAXY DEC=-00D57'2.40" +/- 1" Reference Frame: Other: J2000 Extended: NO Comments: Using the Swift UVOT position. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2015.5 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 17492( 8) - 10-Jun-2024 17:41:37 - [ 4] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 13 GRB170728A GALAXY, HIGH REDSHIFT RA=03H55M33.2000S +/- 1", J2000 V = 25 GALAXY DEC=+12D10'54.70" +/- 1" Reference Frame: Other: J2000 Extended: NO Comments: A r-band ~ 12th AB magnitude star is located very close (~27") to the position of our target. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2015.5 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 14 GRB180618A-E GALAXY, SPIRAL RA=11H19M45.9400S +/- 0.5", J2000 V = 23 E DEC=+73D50'13.50" +/- 0.5" Reference Frame: Other: J2000 Extended: YES Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2015.5 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 15 GRB181123B-E GALAXY, SPIRAL RA=12H17M27.9100S +/- 0.3", J2000 V = 24 E DEC=+14D35'52.27" +/- 0.3" Reference Frame: Other: J2000 Extended: YES ------------------------------------------------------------------------------------------------------------------------------------ 16 GRB201221D GALAXY, HIGH REDSHIFT RA=11H24M14.0200S +/- 2", J2000 V = 24 GALAXY, SPIRAL DEC=+42D08'39.97" +/- 2" Reference Frame: Other: J2000 Extended: YES Comments: This GRB has only an XRT localization. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2015.5 0.0 0.0 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 17 GRB210323A GALAXY, SPIRAL RA=21H11M47.3300S +/- 0.3", J2000 V = 24.5 DEC=+25D22'9.20" +/- 0.3" Reference Frame: Other: J2000 Extended: YES ------------------------------------------------------------------------------------------------------------------------------------ 18 GRB210726A GALAXY, SPIRAL RA=12H53M9.7000S +/- 0.8", J2000 V = 23 DEC=+19D11'27.30" +/- 0.8" Reference Frame: Other: J2000 Extended: YES ------------------------------------------------------------------------------------------------------------------------------------ 20 GRB211023B GALAXY, SPIRAL RA=11H21M14.0900S +/- 0.3", J2000 V = 23.5 DEC=+39D08'7.20" +/- 0.3" Reference Frame: Other: J2000 Extended: YES ------------------------------------------------------------------------------------------------------------------------------------ 21 GRB220831A GALAXY, HIGH REDSHIFT RA=01H37M0.9000S +/- 0.3", J2000 V = 26.5 GALAXY DEC=-41D35'34.30" +/- 0.3" Reference Frame: Other: J2000 ------------------------------------------------------------------------------------------------------------------------------------ 22 GRB221120A GALAXY, HIGH REDSHIFT RA=02H45M21.3600S +/- 0.5", J2000 V = 25 GALAXY DEC=+43D14'34.90" +/- 0.5" Reference Frame: Other: J2000 Extended: YES Comments: XRT localized only. Coordinates and position uncertainty are for the host galaxy. 17492( 8) - 10-Jun-2024 17:41:37 - [ 5] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ 23 GRB180727A GALAXY, HIGH REDSHIFT RA=23H06M39.6800S +/- 2", J2000 V = 26.5 GALAXY DEC=-63D03'6.70" +/- 2" Reference Frame: Other: J2000 Extended: YES Comments: XRT localized only. ------------------------------------------------------------------------------------------------------------------------------------ 17492( 8) - 10-Jun-2024 17:41:37 - [ 6] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 1 Primary_Pattern Secondary_Pattern Pattern_Type WFC3-IR-DITHER-BOX-MIN Pattern_Purpose DITHER Number_Of_Points 4 Point_Spacing 0.572 Line_Spacing 0.365 Coordinate_Frame POS-TARG Pattern_Orient 18.528 Angle_Between_Sides 74.653 Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ 17492( 8) - 10-Jun-2024 17:41:37 - [ 7] Visit: 01 (GRB 081226A) Visit Requirements: On Hold Comments: Additional Comments: No orientation constraints required. 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 GRB081226A WFC3/IR MULTIAC IR F160W SAMP-SEQ=SPARS100, NSAMP=7 1 DEF PATTERN 1 1 CUM (2411.737 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB081226A 1 WFC3/IR MULTIAC IR F160W 1 none none none 1 N/A CUM GRB081226A 1 WFC3/IR MULTIAC IR F160W 2 none none none 1 N/A CUM GRB081226A 1 WFC3/IR MULTIAC IR F160W 3 none none none 1 N/A CUM GRB081226A 1 WFC3/IR MULTIAC IR F160W 4 none none none 1 N/A CUM 17492( 8) - 10-Jun-2024 17:41:37 - [ 8] Visit: 02 (GRB 230906A) 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 GRB230906A WFC3/IR MULTIAC IR F160W SAMP-SEQ=SPARS100, NSAMP=7 1 DEF PATTERN 1 1 CUM (2411.737 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB230906A 1 WFC3/IR MULTIAC IR F160W 1 none none none 1 N/A CUM GRB230906A 1 WFC3/IR MULTIAC IR F160W 2 none none none 1 N/A CUM GRB230906A 1 WFC3/IR MULTIAC IR F160W 3 none none none 1 N/A CUM GRB230906A 1 WFC3/IR MULTIAC IR F160W 4 none none none 1 N/A CUM 17492( 8) - 10-Jun-2024 17:41:37 - [ 9] Visit: 03 (GRB 120804A) Visit Requirements: ORIENT 0D TO 24 D; ORIENT 70D TO 114 D; ORIENT 160D TO 204 D; ORIENT 250D TO 294 D; ORIENT 340D TO 359 D On Hold Comments: Additional Comments: There are multiple bright stars within 15-30" of the target position; the closest star and the faintest is at 11" and has r~17.5 AB mag and J~17 AB mag. The position angles are PA = 50 (closest), 150, 214 (brightest).; essentially the same as PA =34 - 60 being excluded angles that would lead to diffraction spikes. Due to these differing position angles the orients become rather limited. Excluding just PA = 50, 150 (due to proximity) allows for ORIENT = 0-40, 70-130, 160-220, 250-310, 340-459 but adding the brightest star at PA = 214 limits this to allowed range to ORIENT = 0-24, 70-114, 160-204, 250-294, 340-359. We note that adding these orient constraints do not impact observability in the visit planner. 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 GRB120804A- WFC3/IR MULTIAC IR F160W SAMP-SEQ=SPARS100, NSAMP=7 1 DEF PATTERN 1 1 EE CUM (2411.737 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB120804A-EE 1 WFC3/IR MULTIAC IR F160W 1 none none none 1 N/A CUM GRB120804A-EE 1 WFC3/IR MULTIAC IR F160W 2 none none none 1 N/A CUM GRB120804A-EE 1 WFC3/IR MULTIAC IR F160W 3 none none none 1 N/A CUM GRB120804A-EE 1 WFC3/IR MULTIAC IR F160W 4 none none none 1 N/A CUM 17492( 8) - 10-Jun-2024 17:41:37 - [ 10] Visit: 04 (GRB 170428A) Visit Requirements: On Hold Comments: Additional Comments: No orientation constraints required. An H~10 AB mag star resides about 300" away, and is out of the field of view. We request that this be checked whether this could still potentially be an issue and whether orient constraints should be applied. 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 GRB170428A WFC3/IR MULTIAC IR F160W SAMP-SEQ=SPARS100, NSAMP=7 1 DEF PATTERN 1 1 CUM (2411.737 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB170428A 1 WFC3/IR MULTIAC IR F160W 1 none none none 1 N/A CUM GRB170428A 1 WFC3/IR MULTIAC IR F160W 2 none none none 1 N/A CUM GRB170428A 1 WFC3/IR MULTIAC IR F160W 3 none none none 1 N/A CUM GRB170428A 1 WFC3/IR MULTIAC IR F160W 4 none none none 1 N/A CUM 17492( 8) - 10-Jun-2024 17:41:37 - [ 11] Visit: 05 (GRB 180618A) Visit Requirements: ORIENT 0D TO 10 D; ORIENT 30D TO 100 D; ORIENT 120D TO 190 D; ORIENT 210D TO 280 D; ORIENT 300D TO 359 D On Hold Comments: Additional Comments: A H~17 AB mag star resides at 7" offset. The PA between star and target is 290 degrees. We add +/-10 degrees uncertainty on this. The allowed ORIENT constraints to avoid diffraction spikes are therefore: 0-10, 30-100, 120-190, 210-280, 300-359 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 GRB180618A- WFC3/IR MULTIAC IR F160W SAMP-SEQ=SPARS100, NSAMP=7 1 DEF PATTERN 1 1 EE CUM (2411.737 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB180618A-EE 1 WFC3/IR MULTIAC IR F160W 1 none none none 1 N/A CUM GRB180618A-EE 1 WFC3/IR MULTIAC IR F160W 2 none none none 1 N/A CUM GRB180618A-EE 1 WFC3/IR MULTIAC IR F160W 3 none none none 1 N/A CUM GRB180618A-EE 1 WFC3/IR MULTIAC IR F160W 4 none none none 1 N/A CUM 17492( 8) - 10-Jun-2024 17:41:37 - [ 12] Visit: 06 (GRB 181123B) Visit Requirements: On Hold Comments: Additional Comments: No orientation constraints required. 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 GRB181123B- WFC3/IR MULTIAC IR F160W SAMP-SEQ=SPARS100, NSAMP=7 1 DEF PATTERN 1 1 EE CUM (2411.737 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB181123B-EE 1 WFC3/IR MULTIAC IR F160W 1 none none none 1 N/A CUM GRB181123B-EE 1 WFC3/IR MULTIAC IR F160W 2 none none none 1 N/A CUM GRB181123B-EE 1 WFC3/IR MULTIAC IR F160W 3 none none none 1 N/A CUM GRB181123B-EE 1 WFC3/IR MULTIAC IR F160W 4 none none none 1 N/A CUM 17492( 8) - 10-Jun-2024 17:41:37 - [ 13] Visit: 07 (GRB 201221D) Visit Requirements: On Hold Comments: Additional Comments: No orientation constraints required. 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 GRB201221D WFC3/IR MULTIAC IR F160W SAMP-SEQ=SPARS100, NSAMP=7 1 DEF PATTERN 1 1 CUM (2411.737 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB201221D 1 WFC3/IR MULTIAC IR F160W 1 none none none 1 N/A CUM GRB201221D 1 WFC3/IR MULTIAC IR F160W 2 none none none 1 N/A CUM GRB201221D 1 WFC3/IR MULTIAC IR F160W 3 none none none 1 N/A CUM GRB201221D 1 WFC3/IR MULTIAC IR F160W 4 none none none 1 N/A CUM 17492( 8) - 10-Jun-2024 17:41:37 - [ 14] Visit: 08 (GRB 210323A) Visit Requirements: On Hold Comments: Additional Comments: No orientation constraints. 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 GRB210323A WFC3/IR MULTIAC IR F160W SAMP-SEQ=SPARS100, NSAMP=7 1 DEF PATTERN 1 1 CUM (2411.737 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB210323A 1 WFC3/IR MULTIAC IR F160W 1 none none none 1 N/A CUM GRB210323A 1 WFC3/IR MULTIAC IR F160W 2 none none none 1 N/A CUM GRB210323A 1 WFC3/IR MULTIAC IR F160W 3 none none none 1 N/A CUM GRB210323A 1 WFC3/IR MULTIAC IR F160W 4 none none none 1 N/A CUM 17492( 8) - 10-Jun-2024 17:41:37 - [ 15] Visit: 09 (GRB 210726A) Visit Requirements: On Hold Comments: Additional Comments: No orientation constraints. 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 GRB210726A WFC3/IR MULTIAC IR F160W SAMP-SEQ=SPARS100, NSAMP=7 1 DEF PATTERN 1 1 CUM (2411.737 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB210726A 1 WFC3/IR MULTIAC IR F160W 1 none none none 1 N/A CUM GRB210726A 1 WFC3/IR MULTIAC IR F160W 2 none none none 1 N/A CUM GRB210726A 1 WFC3/IR MULTIAC IR F160W 3 none none none 1 N/A CUM GRB210726A 1 WFC3/IR MULTIAC IR F160W 4 none none none 1 N/A CUM 17492( 8) - 10-Jun-2024 17:41:37 - [ 16] Visit: 10 (GRB 211023B) Visit Requirements: ORIENT 0D TO 47 D; ORIENT 67D TO 137 D; ORIENT 157D TO 227 D; ORIENT 247D TO 317 D; ORIENT 337D TO 359 D On Hold Comments: Additional Comments: A H~14th AB mag star resides at 35" offset. The PA between star and target is ~327 deg. We exclude +/-10 degrees on either side of this to compute the allowed ORIENT: 0-47, 67-137, 157-227, 247-317, 337-359 This does not affect the visibility in the visit planner. 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 GRB211023B WFC3/IR MULTIAC IR F160W SAMP-SEQ=SPARS100, NSAMP=7 1 DEF PATTERN 1 1 CUM (2411.737 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB211023B 1 WFC3/IR MULTIAC IR F160W 1 none none none 1 N/A CUM GRB211023B 1 WFC3/IR MULTIAC IR F160W 2 none none none 1 N/A CUM GRB211023B 1 WFC3/IR MULTIAC IR F160W 3 none none none 1 N/A CUM GRB211023B 1 WFC3/IR MULTIAC IR F160W 4 none none none 1 N/A CUM 17492( 8) - 10-Jun-2024 17:41:37 - [ 17] Visit: 11 (GRB 220831A) Visit Requirements: On Hold Comments: Additional Comments: No orientation constraints required. 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 GRB220831A WFC3/IR MULTIAC IR F160W SAMP-SEQ=SPARS100, NSAMP=7 1 DEF PATTERN 1 1 CUM (2411.737 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB220831A 1 WFC3/IR MULTIAC IR F160W 1 none none none 1 N/A CUM GRB220831A 1 WFC3/IR MULTIAC IR F160W 2 none none none 1 N/A CUM GRB220831A 1 WFC3/IR MULTIAC IR F160W 3 none none none 1 N/A CUM GRB220831A 1 WFC3/IR MULTIAC IR F160W 4 none none none 1 N/A CUM 17492( 8) - 10-Jun-2024 17:41:37 - [ 18] Visit: 12 (GRB 221120A) Visit Requirements: On Hold Comments: Additional Comments: No orientation constraints required. 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 GRB221120A WFC3/IR MULTIAC IR F160W SAMP-SEQ=SPARS100, NSAMP=7 1 DEF PATTERN 1 1 CUM (2411.737 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB221120A 1 WFC3/IR MULTIAC IR F160W 1 none none none 1 N/A CUM GRB221120A 1 WFC3/IR MULTIAC IR F160W 2 none none none 1 N/A CUM GRB221120A 1 WFC3/IR MULTIAC IR F160W 3 none none none 1 N/A CUM GRB221120A 1 WFC3/IR MULTIAC IR F160W 4 none none none 1 N/A CUM 17492( 8) - 10-Jun-2024 17:41:37 - [ 19] Visit: 13 (GRB 180727A) Visit Requirements: On Hold Comments: Additional Comments: No orientation constraints required. 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 GRB180727A WFC3/IR MULTIAC IR F160W SAMP-SEQ=SPARS100, NSAMP=7 1 DEF PATTERN 1 1 CUM (2411.737 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB180727A 1 WFC3/IR MULTIAC IR F160W 1 none none none 1 N/A CUM GRB180727A 1 WFC3/IR MULTIAC IR F160W 2 none none none 1 N/A CUM GRB180727A 1 WFC3/IR MULTIAC IR F160W 3 none none none 1 N/A CUM GRB180727A 1 WFC3/IR MULTIAC IR F160W 4 none none none 1 N/A CUM 17492( 8) - 10-Jun-2024 17:41:37 - [ 20] Visit: 14 (GRB 160408A deep) Visit Requirements: On Hold Comments: Additional Comments: No orientation constraints required. 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 GRB160408A WFC3/IR MULTIAC IR F160W NSAMP=15, SAMP-SEQ=SPARS100 1 DEF PATTERN 1 1 CUM (5611.747 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB160408A 1 WFC3/IR MULTIAC IR F160W 1 none none none 1 N/A CUM GRB160408A 1 WFC3/IR MULTIAC IR F160W 2 none none none 1 N/A CUM GRB160408A 1 WFC3/IR MULTIAC IR F160W 3 none none none 2 N/A CUM GRB160408A 1 WFC3/IR MULTIAC IR F160W 4 none none none 2 N/A CUM 17492( 8) - 10-Jun-2024 17:41:37 - [ 21] Visit: 15 (GRB 160410A deep) Visit Requirements: ORIENT 0D TO 52 D; ORIENT 72D TO 142 D; ORIENT 162D TO 232 D; ORIENT 252D TO 322 D; ORIENT 342D TO 359 D On Hold Comments: Additional Comments: NSAMP = 14 to avoid overrunning orbital visibility. There are two nearby stars within 5" at PA~12 and 62. This event is a hostless short GRB where the position of the galaxy is unknown, and only the location of the transient is known. We therefore cannot exclude slight offsets around our localization for the transient, though based on the optical spectrum of the afterglow it is likely within the half-light radius. Due to the unknown location of the target galaxy, this would require excluding a vast amount of PA between ~2-72. As this severely limits scheduling ability, we opt to only exclude PAs associated with the diffraction spike of the brighter star, which is more likely to have an impact on the science goal. After careful consideration, a diffraction spike associated with the fainter star is unlikely to reach the target position (based on comparison to other HST images with the same configuration). Therefore, the allowed ORIENT ranges (to exclude diffraction spikes associated with PA~62) are: 0-52, 72-142, 162-232, 252-322, 342-359. These constraints do not impact the visit planner. 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 GRB160410A- WFC3/IR MULTIAC IR F160W NSAMP=13, SAMP-SEQ=SPARS100 1 DEF PATTERN 1 1 EE CUM (4811.745 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB160410A-EE 1 WFC3/IR MULTIAC IR F160W 1 none none none 1 N/A CUM GRB160410A-EE 1 WFC3/IR MULTIAC IR F160W 2 none none none 1 N/A CUM GRB160410A-EE 1 WFC3/IR MULTIAC IR F160W 3 none none none 2 N/A CUM GRB160410A-EE 1 WFC3/IR MULTIAC IR F160W 4 none none none 2 N/A CUM 17492( 8) - 10-Jun-2024 17:41:37 - [ 22] Visit: 16 (GRB 160411A deep) Visit Requirements: On Hold Comments: Additional Comments: NSAMP = 14 to avoid overrunning orbital visibility. No orientation constraints required. 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 GRB160411A WFC3/IR MULTIAC IR F160W NSAMP=13, SAMP-SEQ=SPARS100 1 DEF PATTERN 1 1 CUM (4811.745 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB160411A 1 WFC3/IR MULTIAC IR F160W 1 none none none 1 N/A CUM GRB160411A 1 WFC3/IR MULTIAC IR F160W 2 none none none 1 N/A CUM GRB160411A 1 WFC3/IR MULTIAC IR F160W 3 none none none 2 N/A CUM GRB160411A 1 WFC3/IR MULTIAC IR F160W 4 none none none 2 N/A CUM 17492( 8) - 10-Jun-2024 17:41:37 - [ 23] Visit: 17 (GRB 160601A deep) Visit Requirements: ORIENT 0D TO 25 D; ORIENT 45D TO 115 D; ORIENT 135D TO 205 D; ORIENT 225D TO 295 D; ORIENT 314D TO 359 D On Hold Comments: Additional Comments: A H~10th AB mag star is located at offset of ~180" (outside the field of view). We are not sure whether this can still impact the observation, i.e., whether a diffraction spike can reach this far for that brightness. It would be helpful if this could be checked/advised. A H~14th AB mag star resides at ~50" from the target position at PA~215 degrees. To avoid diffraction spikes we have provided the following allowed orientation: 0-25, 45-115, 135-205, 225-295, 314-359 This barely impact the visit planner. 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 GRB160601A WFC3/IR MULTIAC IR F160W NSAMP=14, SAMP-SEQ=SPARS100 1 DEF PATTERN 1 1 CUM (5211.746 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB160601A 1 WFC3/IR MULTIAC IR F160W 1 none none none 1 N/A CUM GRB160601A 1 WFC3/IR MULTIAC IR F160W 2 none none none 1 N/A CUM GRB160601A 1 WFC3/IR MULTIAC IR F160W 3 none none none 2 N/A CUM GRB160601A 1 WFC3/IR MULTIAC IR F160W 4 none none none 2 N/A CUM 17492( 8) - 10-Jun-2024 17:41:37 - [ 24] Visit: 18 (GRB 160927A deep) Visit Requirements: ORIENT 10D TO 20 D; ORIENT 40D TO 80 D; ORIENT 90D TO 110 D; ORIENT 130D TO 170 D; ORIENT 190D TO 200 D; ORIENT 220D TO 260 D; ORIENT 280D TO 290 D; ORIENT 310D TO 350 D On Hold Comments: Additional Comments: There are multiple bright stars in this field. Two of which are within 15" of the target position, fortunately these stars are at similar PA (and PA+~180) from each other, i.e. PA~90 and 270. The brighter one has H~16th AB mag. Another extremely bright star is located right outside the field of view, but the PA is similar (~275), so should not be a problem when excluding +/-10 degrees around the 4 diffraction spikes associated with the star at PA~90. The brightest star within the field of view is at 70" at PA~209 with H~13.5 AB mag. Another is at PA~195 at 35" with H~16 AB mag. We estimate the diffraction spikes from that star should only reach ~20" with this configuration, and are therefore less concerned about its impact. We therefore opt to exclude PA~80-100 and PA~200-220, which leads to an allowed ORIENT of: 10-20, 40-80, 90-110, 130-170, 190-200, 220-260, 280-290, 310-350. These constraints have no impact on the visit planner. 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 GRB160927A WFC3/IR MULTIAC IR F160W NSAMP=13, SAMP-SEQ=SPARS100 1 DEF PATTERN 1 1 CUM (4811.745 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB160927A 1 WFC3/IR MULTIAC IR F160W 1 none none none 1 N/A CUM GRB160927A 1 WFC3/IR MULTIAC IR F160W 2 none none none 1 N/A CUM GRB160927A 1 WFC3/IR MULTIAC IR F160W 3 none none none 2 N/A CUM GRB160927A 1 WFC3/IR MULTIAC IR F160W 4 none none none 2 N/A CUM 17492( 8) - 10-Jun-2024 17:41:37 - [ 25] Visit: 19 (GRB 161001A deep) Visit Requirements: ORIENT 0D TO 15 D; ORIENT 55D TO 105 D; ORIENT 145D TO 195 D; ORIENT 235D TO 285 D; ORIENT 325D TO 359 D On Hold Comments: Additional Comments: NSAMP = 14 to avoid overrunning the orbit. A ~19th mag star is at an offset of ~3" from the target. Due to the close proximity, and extended nature of the target source, we exclude a larger swath of PA (+/-20) centered around PA~35 deg, i.e., excluding PA~15-55. The allowed ORIENT is therefore: 0-15, 55-105, 145-195, 235-285, 325-359. These constraints did impact the visibility in the visit planner, but a large range of allowed visit times still exists. 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 GRB161001A WFC3/IR MULTIAC IR F160W NSAMP=14, SAMP-SEQ=SPARS100 1 DEF PATTERN 1 1 CUM (5211.746 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB161001A 1 WFC3/IR MULTIAC IR F160W 1 none none none 1 N/A CUM GRB161001A 1 WFC3/IR MULTIAC IR F160W 2 none none none 1 N/A CUM GRB161001A 1 WFC3/IR MULTIAC IR F160W 3 none none none 2 N/A CUM GRB161001A 1 WFC3/IR MULTIAC IR F160W 4 none none none 2 N/A CUM 17492( 8) - 10-Jun-2024 17:41:37 - [ 26] Visit: 20 (GRB 161004A deep) Visit Requirements: ORIENT 12D TO 36 D; ORIENT 65D TO 84 D; ORIENT 102D TO 126 D; ORIENT 155D TO 174 D; ORIENT 192D TO 216 D; ORIENT 245D TO 264 D; ORIENT 282D TO 306 D; ORIENT 335D TO 354 D On Hold Comments: Additional Comments: NSAMP = 13 to avoid overrunning orbital visibility. This is a crowded field with many bright stars. The main ones to avoid have PA~6, 12, 46, 55. Avoiding +/-10 deg on either side of these PAs leads to exclusion of PAs ~ 354-22 and 36-65. Thus the following ORIENT allowed constraints to prevent diffraction spikes: 12-36, 65-84, 102-126, 155-174, 192-216, 245-264, 282-306, 335-354 These constraints do not significantly impact the visit planner scheduling. 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 GRB161004A WFC3/IR MULTIAC IR F160W NSAMP=13, SAMP-SEQ=SPARS100 1 DEF PATTERN 1 1 CUM (4811.745 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB161004A 1 WFC3/IR MULTIAC IR F160W 1 none none none 1 N/A CUM GRB161004A 1 WFC3/IR MULTIAC IR F160W 2 none none none 1 N/A CUM GRB161004A 1 WFC3/IR MULTIAC IR F160W 3 none none none 2 N/A CUM GRB161004A 1 WFC3/IR MULTIAC IR F160W 4 none none none 2 N/A CUM 17492( 8) - 10-Jun-2024 17:41:37 - [ 27] Visit: 21 (GRB 140930B deep) Visit Requirements: ORIENT 5D TO 65 D; ORIENT 95D TO 155 D; ORIENT 185D TO 245 D; ORIENT 275D TO 335 D On Hold Comments: Additional Comments: NSAMP = 14 to avoid overrunning orbital visibility. There is an r~13 mag star at an offset of 15". The PA, measured East of North, of the star to the target position is 350. Due to the brightness and proximity we exclude a large range of PA around this value of +/-15 degrees. This leads to allowed ORIENT of: 5-65, 95-155, 185-245, 275-335, which are computed as outlined in the comments of Visit 2. We note that this target already had poor visibility in the visit planner, and that the addition of these constraints did have an impact on top of this. 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 GRB140930B WFC3/IR MULTIAC IR F160W NSAMP=14, SAMP-SEQ=SPARS100 1 DEF PATTERN 1 1 CUM (5211.746 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB140930B 1 WFC3/IR MULTIAC IR F160W 1 none none none 1 N/A CUM GRB140930B 1 WFC3/IR MULTIAC IR F160W 2 none none none 1 N/A CUM GRB140930B 1 WFC3/IR MULTIAC IR F160W 3 none none none 2 N/A CUM GRB140930B 1 WFC3/IR MULTIAC IR F160W 4 none none none 2 N/A CUM 17492( 8) - 10-Jun-2024 17:41:37 - [ 28] Visit: 22 (GRB 170728A deep) Visit Requirements: ORIENT 0D TO 10 D; ORIENT 40D TO 100 D; ORIENT 130D TO 190 D; ORIENT 220D TO 280 D; ORIENT 310D TO 359 D On Hold Comments: Additional Comments: NSAMP = 14 to avoid overrunning orbital visibility. There is an r~11.8 mag star at an offset of 27". PA between star and target is 295 degrees East of North. We avoid PA ~ 280-310 due to the proximity and brightness of the star. The ORIENT ranges that prevent a diffraction spike at the target position are: 0-10, 40-100, 130-190, 220-280, 310-359, and are computed as outlined in the comments of Visit 2. These orient constraints have no impact on the visit planner scheduling. 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 GRB170728A WFC3/IR MULTIAC IR F160W NSAMP=13, SAMP-SEQ=SPARS100 1 DEF PATTERN 1 1 CUM (4811.745 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB170728A 1 WFC3/IR MULTIAC IR F160W 1 none none none 1 N/A CUM GRB170728A 1 WFC3/IR MULTIAC IR F160W 2 none none none 1 N/A CUM GRB170728A 1 WFC3/IR MULTIAC IR F160W 3 none none none 2 N/A CUM GRB170728A 1 WFC3/IR MULTIAC IR F160W 4 none none none 2 N/A CUM 17492( 8) - 10-Jun-2024 17:41:37 - [ 29] Visit: 52 (GRB 230906A) 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 GRB230906A WFC3/IR MULTIAC IR F160W SAMP-SEQ=SPARS100, NSAMP=7 1 DEF PATTERN 1 1 CUM (2411.737 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB230906A 1 WFC3/IR MULTIAC IR F160W 1 none none none 1 N/A CUM GRB230906A 1 WFC3/IR MULTIAC IR F160W 2 none none none 1 N/A CUM GRB230906A 1 WFC3/IR MULTIAC IR F160W 3 none none none 1 N/A CUM GRB230906A 1 WFC3/IR MULTIAC IR F160W 4 none none none 1 N/A CUM 17492( 8) - 10-Jun-2024 17:41:37 - [ 30] Visit: 62 (GRB 221120A) Visit Requirements: On Hold Comments: Additional Comments: No orientation constraints required. 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 GRB221120A WFC3/IR MULTIAC IR F160W SAMP-SEQ=SPARS100, NSAMP=7 1 DEF PATTERN 1 1 CUM (2411.737 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB221120A 1 WFC3/IR MULTIAC IR F160W 1 none none none 1 N/A CUM GRB221120A 1 WFC3/IR MULTIAC IR F160W 2 none none none 1 N/A CUM GRB221120A 1 WFC3/IR MULTIAC IR F160W 3 none none none 1 N/A CUM GRB221120A 1 WFC3/IR MULTIAC IR F160W 4 none none none 1 N/A CUM 17492( 8) - 10-Jun-2024 17:41:37 - [ 31] Visit: 63 (GRB 180727A) Visit Requirements: On Hold Comments: Additional Comments: No orientation constraints required. 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 GRB180727A WFC3/IR MULTIAC IR F160W SAMP-SEQ=SPARS100, NSAMP=7 1 DEF PATTERN 1 1 CUM (2411.737 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 | ------------------------------------------------------------------------------------------------------------------------------------ GRB180727A 1 WFC3/IR MULTIAC IR F160W 1 none none none 1 N/A CUM GRB180727A 1 WFC3/IR MULTIAC IR F160W 2 none none none 1 N/A CUM GRB180727A 1 WFC3/IR MULTIAC IR F160W 3 none none none 1 N/A CUM GRB180727A 1 WFC3/IR MULTIAC IR F160W 4 none none none 1 N/A CUM 17492( 8) - 10-Jun-2024 17:41:37 - [ 32] Summary Form for Proposal 17492 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures IR ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC3/IR ------------------------------------------------------------------------------------------------------------------------------------ Opmodes MULTIACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters NSAMP=13, NSAMP=14, NSAMP=15, NSAMP=7, SAMP-SEQ=SPARS100 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ORIENT 0D TO 10 D, ORIENT 0D TO 15 D, ORIENT 0D TO 24 D, ORIENT 0D TO 25 D, ORIENT 0D TO 47 D, ORIENT 0D TO 52 D, ORIENT 102D TO 126 D, ORIENT 10D TO 20 D, ORIENT 120D TO 190 D, ORIENT 12D TO 36 D, ORIENT 130D TO 170 D, ORIENT 130D TO 190 D, ORIENT 135D TO 205 D, ORIENT 145D TO 195 D, ORIENT 155D TO 174 D, ORIENT 157D TO 227 D, ORIENT 160D TO 204 D, ORIENT 162D TO 232 D, ORIENT 185D TO 245 D, ORIENT 190D TO 200 D, ORIENT 192D TO 216 D, ORIENT 210D TO 280 D, ORIENT 220D TO 260 D, ORIENT 220D TO 280 D, ORIENT 225D TO 295 D, ORIENT 235D TO 285 D, ORIENT 245D TO 264 D, ORIENT 247D TO 317 D, ORIENT 250D TO 294 D, ORIENT 252D TO 322 D, ORIENT 275D TO 335 D, ORIENT 280D TO 290 D, ORIENT 282D TO 306 D, ORIENT 300D TO 359 D, ORIENT 30D TO 100 D, ORIENT 310D TO 350 D, ORIENT 310D TO 359 D, ORIENT 314D TO 359 D, ORIENT 325D TO 359 D, ORIENT 335D TO 354 D, ORIENT 337D TO 359 D, ORIENT 340D TO 359 D, ORIENT 342D TO 359 D, ORIENT 40D TO 100 D, ORIENT 40D TO 80 D, ORIENT 45D TO 115 D, ORIENT 55D TO 105 D, ORIENT 5D TO 65 D, ORIENT 65D TO 84 D, ORIENT 67D TO 137 D, ORIENT 70D TO 114 D, ORIENT 72D TO 142 D, ORIENT 90D TO 110 D, ORIENT 95D TO 155 D, PATTERN 1 1 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F160W ------------------------------------------------------------------------------------------------------------------------------------ Target Names GRB081226A, GRB120804A-EE, GRB140930B, GRB160408A, GRB160410A-EE, GRB160411A, GRB160601A, GRB160927A, GRB161001A, GRB161004A, GRB170428A, GRB170728A, GRB180618A-EE, GRB180727A, GRB181123B-EE, GRB201221D, GRB210323A, GRB210726A, GRB211023B, GRB220831A, GRB221120A, GRB230906A ------------------------------------------------------------------------------------------------------------------------------------