16746( 10) - 25-Jun-2024 18:29:44 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 16746 Version: 10 Check-in Time: 25-Jun-2024 18:29:44 STScI Edit Number: 6 Title Reconstructing Andromeda's accretion history with remote globular clusters: a pilot proper motion study ------------------------------------------------------------------------------------ Type Cycle GO 29 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dougal Mackey Unaffiliated Y CoI: Prof. Annette Ferguson University of Edinburgh, Institute for N Astronomy CoI: Prof. Geraint F. Lewis University of Sydney N CoI: Dr. Rodrigo Ibata Universite de Strasbourg I N CoI: Dr. Nicolas Martin Observatoire Astronomique de Strasbourg N CoI: Avon Huxor University of Bristol N CoI: Dr. Lara Cullinane Leibniz-Institut fur Astrophysik Potsdam N (AIP), Germany CoI: Mr. Patricio Correa Amaro University of Edinburgh, Institute for N Astronomy ------------------------------------------------------------------------------------ Abstract Resolved observations of the stellar halos of nearby galaxies yield critical insight into the mass assembly history in these systems, allowing the predictions of cosmological models to be directly confronted with experimental data. Andromeda (M31) is a key location for this endeavour, offering a second data point, and exhibiting strikingly different halo properties, to the Milky Way. Here we propose to take the first step towards obtaining full 6D orbital phase-space information for stellar substructures in the M31 halo, by undertaking a pilot survey to measure proper motions for a small set of globular clusters with first-epoch ACS/WFC imaging taken 11-17 years ago. By comparison with recent HST proper motion studies of larger stellar systems out to the distance of M31, we expect to achieve a precision of ~0.010-0.015 mas/yr with these baselines. This compares favourably with the observed 1D (line-of-sight) kinematics of M31's outer globular cluster system, which exhibit a velocity dispersion of ~100 km/s (0.027 mas/yr) plus coherent rotation of comparable amplitude. These pilot measurements will provide the first 6D phase-space information for any extragalactic stellar stream, and enable a new, independent estimate of the shape and mass of the M31 dark halo at very large radii (50-120 kpc). By demonstrating feasibility and optimising our methodology with this data set, we ultimately aim to extend similar measurements to a much larger cluster sample in future, facilitating detailed orbital modelling that will accurately reconstruct the main events in M31's accretion history. ------------------------------------------------------------------------------------ Observations Description ------------------------ This is a pilot study aimed at measuring proper motions for five globular clusters in the halo of Andromeda (M31) using ACS/WFC. The first-epoch data were obtained in the programs listed below, between ~11-16 years ago. This program will obtain second-epoch data, and measure the motions of the stars in the clusters by comparing their change in positions relative to compact 16746( 10) - 25-Jun-2024 18:29:44 - [ 2] background galaxies. Of our five targets, PAndAS-02 was observed in program GO-12515; B514 was observed in programs GO-10394 and GO-10565; HEC12 was observed in program GO-10394; and PAndAS-53 and 54 were observed in program GO-12515 and share the same ACS/WFC field. As explained in our Phase I, most of the first-epoch imaging consists of 3 exposures in F606W and 3 exposures in F814W. We would like to use all of these images, to maximise the number of frames that can be used to estimate the proper motion. However none of the first-epoch data were designed for astrometry. We will use the second-epoch images from the present program to construct reference images in both F606W and F814W, with dithers, etc, optimised for astrometry. The exception to this is target B514, for which two sets of first-epoch data exist. For this target we will therefore obtain second-epoch imaging using only F606W, which provides the best astrometric handle on the background galaxies. To minimise systematics, our observations require the exact same field configurations (pointing, aperture, and telescope orientation) as the first-epoch observations. In particular, the strict orientation constraints limit the available observing windows and it may be necessary to find a tradeoff between the available time per orbit (via the "schedulability" parameter) and the duration of the possible observing windows. Observations for a given target and filter occupy one visit and are split into four long exposures (~1100-1200s each) over two orbits. Ideally these integrations need to be as long as possible to maximise the S/N for both faint stars and the background galaxies. We use customised dither patterns (via POS-TARGs) to optimise the pixel phase coverage (e.g., as in program GO-14734). We add one short (60s) exposure per visit to avoid saturating stars at V~17-18th magnitude that could be used to tie our astrometry to the Gaia reference frame in future. ------------------------------------------------------------------------------------ 16746( 10) - 25-Jun-2024 18:29:44 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 PANDAS-02 STELLAR CLUSTER, RA=23H57M55.4324S, J2000 V = 17.7 +/- 0.1 GLOBULAR CLUSTER DEC=+41D46'49.52" Reference Frame: ICRS Comments: First epoch from GO-12515, 3x F606W and 3x F814W. Aperture WFC1. Line dither. Central point of dither at 359.4809683683 +41.78042220476 with PA_V3 = 278.927. ------------------------------------------------------------------------------------------------------------------------------------ 2 B514 STELLAR CLUSTER, RA=00H31M9.8550S, J2000 V = 15.6 +/- 0.1 GLOBULAR CLUSTER DEC=+37D54'0.25" Reference Frame: ICRS Comments: First epoch from GO-10394, 3x F606W. Aperture WFC1. Line dither. Central point of dither at 7.791116850289 +37.90020898981 with PA_V3 = 60.533. First epoch from GO-10565, 3x F606W. Aperture WFC1. Line dither. Central point of dither at 7.791007884871 +37.89992743316 with PA_V3 = 81.922. ------------------------------------------------------------------------------------------------------------------------------------ 3 HEC12 STELLAR CLUSTER, RA=00H58M15.4297S, J2000 V = 18.3 +/- 0.1 GLOBULAR CLUSTER DEC=+38D02'40.35" Reference Frame: ICRS Comments: First epoch from GO-10396, 3x F606W and 4x F814W. Aperture WFC1. Line dither. Central point of dither at 14.56429054236 +38.04454067485 with PA_V3 = 63.769. ------------------------------------------------------------------------------------------------------------------------------------ 4 PANDAS-53+54 STELLAR CLUSTER, RA=01H17M59.0980S, J2000 V = 15.4 +/- 0.1 GLOBULAR CLUSTER DEC=+39D15'58.44" Reference Frame: ICRS Comments: First epoch from GO-12515, 3x F606W and 3x F814W. Aperture WFCENTER. Line dither. Central point of dither at 19.49624159651 +39.2662330971 with PA_V3 = 331.271. ------------------------------------------------------------------------------------------------------------------------------------ 16746( 10) - 25-Jun-2024 18:29:44 - [ 4] Visit: 01 (PA02 F606W) Visit Requirements: ORIENT 98.927D TO 98.927 D On Hold Comments: Additional Comments: Second epoch imaging in F606W - same ORIENT, APERTURE, and COORDs as first epoch, with 4-pt dither optimised for astrometry plus one short exposure. 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 PANDAS-02 ACS/WFC ACCUM WFC1 F606W 1 1238 S POS TARG 0.0, 0.0; GS (1238 S) ACQ SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 2 PANDAS-02 ACS/WFC ACCUM WFC1 F606W 1 1239 S POS TARG 0.148, 0.086; (1239 S) GS ACQ SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 3 PANDAS-02 ACS/WFC ACCUM WFC1 F606W 1 60 S (60 POS TARG 0.222, 0.240; S) GS ACQ SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 4 PANDAS-02 ACS/WFC ACCUM WFC1 F606W 1 1174 S POS TARG 0.222, 0.240; (1174 S) GS ACQ SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 5 PANDAS-02 ACS/WFC ACCUM WFC1 F606W 1 1174 S POS TARG 0.074, 0.154; (1174 S) GS ACQ SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ PANDAS-02 1 ACS/WFC ACCUM WFC1 F606W none none none none 1 N/A PANDAS-02 2 ACS/WFC ACCUM WFC1 F606W none none none none 1 N/A PANDAS-02 3 ACS/WFC ACCUM WFC1 F606W none none none none 2 N/A PANDAS-02 4 ACS/WFC ACCUM WFC1 F606W none none none none 2 N/A PANDAS-02 5 ACS/WFC ACCUM WFC1 F606W none none none none 2 N/A 16746( 10) - 25-Jun-2024 18:29:44 - [ 5] Visit: 02 (PA02 F814W) Visit Requirements: ORIENT 98.927D TO 98.927 D On Hold Comments: Additional Comments: Second epoch imaging in F814W - same ORIENT, APERTURE, and COORDs as first epoch, with 4-pt dither optimised for astrometry plus one short exposure. 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 PANDAS-02 ACS/WFC ACCUM WFC1 F814W 1 1238 S POS TARG 0.0, 0.0; GS (1238 S) ACQ SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 2 PANDAS-02 ACS/WFC ACCUM WFC1 F814W 1 1239 S POS TARG 0.148, 0.086; (1239 S) GS ACQ SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 3 PANDAS-02 ACS/WFC ACCUM WFC1 F814W 1 60 S (60 POS TARG 0.222, 0.240; S) GS ACQ SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 4 PANDAS-02 ACS/WFC ACCUM WFC1 F814W 1 1174 S POS TARG 0.222, 0.240; (1174 S) GS ACQ SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 5 PANDAS-02 ACS/WFC ACCUM WFC1 F814W 1 1174 S POS TARG 0.074, 0.154; (1174 S) GS ACQ SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ PANDAS-02 1 ACS/WFC ACCUM WFC1 F814W none none none none 1 N/A PANDAS-02 2 ACS/WFC ACCUM WFC1 F814W none none none none 1 N/A PANDAS-02 3 ACS/WFC ACCUM WFC1 F814W none none none none 2 N/A PANDAS-02 4 ACS/WFC ACCUM WFC1 F814W none none none none 2 N/A PANDAS-02 5 ACS/WFC ACCUM WFC1 F814W none none none none 2 N/A 16746( 10) - 25-Jun-2024 18:29:44 - [ 6] Visit: 03 (HEC12 F606W) Visit Requirements: ORIENT 243.769D TO 243.769 D On Hold Comments: Additional Comments: Second epoch imaging in F606W - same ORIENT, APERTURE, and COORDs as first epoch, with 4-pt dither optimised for astrometry plus one short exposure. 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 HEC12 ACS/WFC ACCUM WFC1 F606W 1 1219 S POS TARG 0.0, 0.0; GS (1219 S) ACQ SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 2 HEC12 ACS/WFC ACCUM WFC1 F606W 1 1220 S POS TARG 0.148, 0.086; (1220 S) GS ACQ SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 3 HEC12 ACS/WFC ACCUM WFC1 F606W 1 60 S (60 POS TARG 0.222, 0.240; S) GS ACQ SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 4 HEC12 ACS/WFC ACCUM WFC1 F606W 1 1155 S POS TARG 0.222, 0.240; (1155 S) GS ACQ SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 5 HEC12 ACS/WFC ACCUM WFC1 F606W 1 1155 S POS TARG 0.074, 0.154; (1155 S) GS ACQ SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ HEC12 1 ACS/WFC ACCUM WFC1 F606W none none none none 1 N/A HEC12 2 ACS/WFC ACCUM WFC1 F606W none none none none 1 N/A HEC12 3 ACS/WFC ACCUM WFC1 F606W none none none none 2 N/A HEC12 4 ACS/WFC ACCUM WFC1 F606W none none none none 2 N/A HEC12 5 ACS/WFC ACCUM WFC1 F606W none none none none 2 N/A 16746( 10) - 25-Jun-2024 18:29:44 - [ 7] Visit: 04 (HEC12 F814W) Visit Requirements: ORIENT 243.769D TO 243.769 D On Hold Comments: Additional Comments: Second epoch imaging in F814W - same ORIENT, APERTURE, and COORDs as first epoch, with 4-pt dither optimised for astrometry plus one short exposure. 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 HEC12 ACS/WFC ACCUM WFC1 F814W 1 1219 S POS TARG 0.0, 0.0; GS (1219 S) ACQ SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 2 HEC12 ACS/WFC ACCUM WFC1 F814W 1 1220 S POS TARG 0.148, 0.086; (1220 S) GS ACQ SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 3 HEC12 ACS/WFC ACCUM WFC1 F814W 1 60 S (60 POS TARG 0.222, 0.240; S) GS ACQ SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 4 HEC12 ACS/WFC ACCUM WFC1 F814W 1 1155 S POS TARG 0.222, 0.240; (1155 S) GS ACQ SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 5 HEC12 ACS/WFC ACCUM WFC1 F814W 1 1155 S POS TARG 0.074, 0.154; (1155 S) GS ACQ SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ HEC12 1 ACS/WFC ACCUM WFC1 F814W none none none none 1 N/A HEC12 2 ACS/WFC ACCUM WFC1 F814W none none none none 1 N/A HEC12 3 ACS/WFC ACCUM WFC1 F814W none none none none 2 N/A HEC12 4 ACS/WFC ACCUM WFC1 F814W none none none none 2 N/A HEC12 5 ACS/WFC ACCUM WFC1 F814W none none none none 2 N/A 16746( 10) - 25-Jun-2024 18:29:44 - [ 8] Visit: 05 (PA53-54 F606W) Visit Requirements: ORIENT 151.271D TO 151.271 D On Hold Comments: Additional Comments: Second epoch imaging in F606W - same ORIENT, APERTURE, and COORDs as first epoch, with 4-pt dither optimised for astrometry plus one short exposure. 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 PANDAS-53+5 ACS/WFC ACCUM WFCENTER F606W 1 1219 S POS TARG 0.0, 0.0 4 (1219 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 PANDAS-53+5 ACS/WFC ACCUM WFCENTER F606W 1 1220 S POS TARG 0.148, 0.086 4 (1220 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 PANDAS-53+5 ACS/WFC ACCUM WFCENTER F606W 1 60 S (60 POS TARG 0.222, 0.240 4 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 PANDAS-53+5 ACS/WFC ACCUM WFCENTER F606W 1 1155 S POS TARG 0.222, 0.240 4 (1155 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 PANDAS-53+5 ACS/WFC ACCUM WFCENTER F606W 1 1155 S POS TARG 0.074, 0.154 4 (1155 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 | ------------------------------------------------------------------------------------------------------------------------------------ PANDAS-53+54 1 ACS/WFC ACCUM WFCENTER F606W none none none none 1 N/A PANDAS-53+54 2 ACS/WFC ACCUM WFCENTER F606W none none none none 1 N/A PANDAS-53+54 3 ACS/WFC ACCUM WFCENTER F606W none none none none 2 N/A PANDAS-53+54 4 ACS/WFC ACCUM WFCENTER F606W none none none none 2 N/A PANDAS-53+54 5 ACS/WFC ACCUM WFCENTER F606W none none none none 2 N/A 16746( 10) - 25-Jun-2024 18:29:44 - [ 9] Visit: 06 (PA53-54 F814W) Visit Requirements: ORIENT 151.271D TO 151.271 D On Hold Comments: Additional Comments: Second epoch imaging in F814W - same ORIENT, APERTURE, and COORDs as first epoch, with 4-pt dither optimised for astrometry plus one short exposure. 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 PANDAS-53+5 ACS/WFC ACCUM WFCENTER F814W 1 1219 S POS TARG 0.0, 0.0 4 (1219 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 PANDAS-53+5 ACS/WFC ACCUM WFCENTER F814W 1 1220 S POS TARG 0.148, 0.086 4 (1220 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 PANDAS-53+5 ACS/WFC ACCUM WFCENTER F814W 1 60 S (60 POS TARG 0.222, 0.240 4 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 PANDAS-53+5 ACS/WFC ACCUM WFCENTER F814W 1 1155 S POS TARG 0.222, 0.240 4 (1155 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 PANDAS-53+5 ACS/WFC ACCUM WFCENTER F814W 1 1155 S POS TARG 0.074, 0.154 4 (1155 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 | ------------------------------------------------------------------------------------------------------------------------------------ PANDAS-53+54 1 ACS/WFC ACCUM WFCENTER F814W none none none none 1 N/A PANDAS-53+54 2 ACS/WFC ACCUM WFCENTER F814W none none none none 1 N/A PANDAS-53+54 3 ACS/WFC ACCUM WFCENTER F814W none none none none 2 N/A PANDAS-53+54 4 ACS/WFC ACCUM WFCENTER F814W none none none none 2 N/A PANDAS-53+54 5 ACS/WFC ACCUM WFCENTER F814W none none none none 2 N/A 16746( 10) - 25-Jun-2024 18:29:44 - [ 10] Visit: 07 (B514 F606W V1) Visit Requirements: ORIENT 240.533D TO 240.533 D On Hold Comments: Additional Comments: Second epoch imaging in F606W - same ORIENT, APERTURE, and COORDs as first epoch GO-10394, with 4-pt dither optimised for astrometry plus one short exposure. 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 B514 ACS/WFC ACCUM WFC1 F606W 1 1219 S POS TARG 0.0, 0.0; GS (1219 S) ACQ SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 2 B514 ACS/WFC ACCUM WFC1 F606W 1 1220 S POS TARG 0.148, 0.086; (1220 S) GS ACQ SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 3 B514 ACS/WFC ACCUM WFC1 F606W 1 60 S (60 POS TARG 0.222, 0.240; S) GS ACQ SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 4 B514 ACS/WFC ACCUM WFC1 F606W 1 1155 S POS TARG 0.222, 0.240; (1155 S) GS ACQ SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 5 B514 ACS/WFC ACCUM WFC1 F606W 1 1155 S POS TARG 0.074, 0.154; (1155 S) GS ACQ SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ B514 1 ACS/WFC ACCUM WFC1 F606W none none none none 1 N/A B514 2 ACS/WFC ACCUM WFC1 F606W none none none none 1 N/A B514 3 ACS/WFC ACCUM WFC1 F606W none none none none 2 N/A B514 4 ACS/WFC ACCUM WFC1 F606W none none none none 2 N/A B514 5 ACS/WFC ACCUM WFC1 F606W none none none none 2 N/A 16746( 10) - 25-Jun-2024 18:29:44 - [ 11] Visit: 08 (B514 F606W V2) Visit Requirements: ORIENT 261.922D TO 261.922 D On Hold Comments: Additional Comments: Second epoch imaging in F606W - same ORIENT, APERTURE, and COORDs as first epoch GO-10565, with 4-pt dither optimised for astrometry plus one short exposure. 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 B514 ACS/WFC ACCUM WFC1 F606W 1 1219 S POS TARG 0.0, 0.0; GS (1219 S) ACQ SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 2 B514 ACS/WFC ACCUM WFC1 F606W 1 1220 S POS TARG 0.148, 0.086; (1220 S) GS ACQ SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 3 B514 ACS/WFC ACCUM WFC1 F606W 1 60 S (60 POS TARG 0.222, 0.240; S) GS ACQ SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 4 B514 ACS/WFC ACCUM WFC1 F606W 1 1155 S POS TARG 0.222, 0.240; (1155 S) GS ACQ SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 5 B514 ACS/WFC ACCUM WFC1 F606W 1 1155 S POS TARG 0.074, 0.154; (1155 S) GS ACQ SCENARIO BASE1B3 ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ B514 1 ACS/WFC ACCUM WFC1 F606W none none none none 1 N/A B514 2 ACS/WFC ACCUM WFC1 F606W none none none none 1 N/A B514 3 ACS/WFC ACCUM WFC1 F606W none none none none 2 N/A B514 4 ACS/WFC ACCUM WFC1 F606W none none none none 2 N/A B514 5 ACS/WFC ACCUM WFC1 F606W none none none none 2 N/A 16746( 10) - 25-Jun-2024 18:29:44 - [ 12] Visit: 09 (Visit 05 Repeat - PA53-54 F606W) Visit Requirements: ORIENT 151.271D TO 151.271 D On Hold Comments: Additional Comments: Second epoch imaging in F606W - same ORIENT, APERTURE, and COORDs as first epoch, with 4-pt dither optimised for astrometry plus one short exposure. 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 PANDAS-53+5 ACS/WFC ACCUM WFCENTER F606W 1 1219 S POS TARG 0.0, 0.0 4 (1219 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 PANDAS-53+5 ACS/WFC ACCUM WFCENTER F606W 1 1220 S POS TARG 0.148, 0.086 4 (1220 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 PANDAS-53+5 ACS/WFC ACCUM WFCENTER F606W 1 60 S (60 POS TARG 0.222, 0.240 4 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 PANDAS-53+5 ACS/WFC ACCUM WFCENTER F606W 1 1155 S POS TARG 0.222, 0.240 4 (1155 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 PANDAS-53+5 ACS/WFC ACCUM WFCENTER F606W 1 1155 S POS TARG 0.074, 0.154 4 (1155 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 | ------------------------------------------------------------------------------------------------------------------------------------ PANDAS-53+54 1 ACS/WFC ACCUM WFCENTER F606W none none none none 1 N/A PANDAS-53+54 2 ACS/WFC ACCUM WFCENTER F606W none none none none 1 N/A PANDAS-53+54 3 ACS/WFC ACCUM WFCENTER F606W none none none none 2 N/A PANDAS-53+54 4 ACS/WFC ACCUM WFCENTER F606W none none none none 2 N/A PANDAS-53+54 5 ACS/WFC ACCUM WFCENTER F606W none none none none 2 N/A 16746( 10) - 25-Jun-2024 18:29:44 - [ 13] Visit: 10 (Visit 06 Repeat - PA53-54 F814W) Visit Requirements: ORIENT 151.271D TO 151.271 D On Hold Comments: Additional Comments: Second epoch imaging in F814W - same ORIENT, APERTURE, and COORDs as first epoch, with 4-pt dither optimised for astrometry plus one short exposure. 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 PANDAS-53+5 ACS/WFC ACCUM WFCENTER F814W 1 1219 S POS TARG 0.0, 0.0 4 (1219 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 PANDAS-53+5 ACS/WFC ACCUM WFCENTER F814W 1 1220 S POS TARG 0.148, 0.086 4 (1220 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 PANDAS-53+5 ACS/WFC ACCUM WFCENTER F814W 1 60 S (60 POS TARG 0.222, 0.240 4 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 PANDAS-53+5 ACS/WFC ACCUM WFCENTER F814W 1 1155 S POS TARG 0.222, 0.240 4 (1155 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 PANDAS-53+5 ACS/WFC ACCUM WFCENTER F814W 1 1155 S POS TARG 0.074, 0.154 4 (1155 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 | ------------------------------------------------------------------------------------------------------------------------------------ PANDAS-53+54 1 ACS/WFC ACCUM WFCENTER F814W none none none none 1 N/A PANDAS-53+54 2 ACS/WFC ACCUM WFCENTER F814W none none none none 1 N/A PANDAS-53+54 3 ACS/WFC ACCUM WFCENTER F814W none none none none 2 N/A PANDAS-53+54 4 ACS/WFC ACCUM WFCENTER F814W none none none none 2 N/A PANDAS-53+54 5 ACS/WFC ACCUM WFCENTER F814W none none none none 2 N/A 16746( 10) - 25-Jun-2024 18:29:44 - [ 14] Visit: 11 (Visit 09 Repeat - PA53-54 F606W) Visit Requirements: On Hold Comments: Additional Comments: Second epoch imaging in F606W - same ORIENT, APERTURE, and COORDs as first epoch, with 4-pt dither optimised for astrometry plus one short exposure. 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 PANDAS-53+5 ACS/WFC ACCUM WFCENTER F606W 1 1219 S POS TARG 0.0, 0.0 4 see below (1140 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 PANDAS-53+5 ACS/WFC ACCUM WFCENTER F606W 1 1220 S POS TARG 0.148, 0.086 4 see below (1141 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 PANDAS-53+5 ACS/WFC ACCUM WFCENTER F606W 1 60 S POS TARG 0.222, 0.240 4 see below (3 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 PANDAS-53+5 ACS/WFC ACCUM WFCENTER F606W 1 1155 S POS TARG 0.222, 0.240 4 see below (1098 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 PANDAS-53+5 ACS/WFC ACCUM WFCENTER F606W 1 1155 S POS TARG 0.074, 0.154 4 see below (1098 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 | ------------------------------------------------------------------------------------------------------------------------------------ PANDAS-53+54 1 ACS/WFC ACCUM WFCENTER F606W none none none none 1 1140.0 S PANDAS-53+54 2 ACS/WFC ACCUM WFCENTER F606W none none none none 1 1141.0 S PANDAS-53+54 3 ACS/WFC ACCUM WFCENTER F606W none none none none 2 3.0 S PANDAS-53+54 4 ACS/WFC ACCUM WFCENTER F606W none none none none 2 1098.0 S PANDAS-53+54 5 ACS/WFC ACCUM WFCENTER F606W none none none none 2 1098.0 S 16746( 10) - 25-Jun-2024 18:29:44 - [ 15] Summary Form for Proposal 16746 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures WFC1, WFCENTER ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/WFC ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements GS ACQ SCENARIO BASE1B3, ORIENT 151.271D TO 151.271 D, ORIENT 240.533D TO 240.533 D, ORIENT 243.769D TO 243.769 D, ORIENT 261.922D TO 261.922 D, ORIENT 98.927D TO 98.927 D, POS TARG 0.0, 0.0, POS TARG 0.074, 0.154, POS TARG 0.148, 0.086, POS TARG 0.222, 0.240 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F606W, F814W ------------------------------------------------------------------------------------------------------------------------------------ Target Names B514, HEC12, PANDAS-02, PANDAS-53+54 ------------------------------------------------------------------------------------------------------------------------------------