12564( 6) - 27-Apr-2012 11:52:09 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 12564 Version: 6 Check-in Time: 27-Apr-2012 11:52:09 STScI Edit Number: 1 Title Proper Motions along the Sagittarius Stream: Constraining Milky Way Parameters and Dark Halo Shape ------------------------------------------------------------------------------------ Type Cycle GO 19 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Roeland P. van der Marel Space Telescope Science Institute CoI: Dr. Jay Anderson Space Telescope Science Institute N CoI: Dr. Sangmo Tony Sohn Space Telescope Science Institute Y CoI: Dr. Steven R. Majewski The University of Virginia N CoI: Dr. David R. Law University of Toronto N CoI: Dr. Jeff Carlin Rensselaer Polytechnic Institute N CoI: Dr. Michael H. Siegel The Pennsylvania State University N CoI: Dr. Nitya Kallivayalil Yale University N ------------------------------------------------------------------------------------ Abstract The Sagittarius Stream is the brightest and most prominent stellar stream around the Milky Way (MW), and the only one with a widely agreed upon origin and parent galaxy (the Sgr dSph). It therefore provides a unique tracer to constrain the MW's dark halo. The position, width, distance, mean line-of-sight velocity, and velocity dispersion of the Stream have been mapped in various parts of the sky. Detailed N-body modeling by the CoIs has shown that conflicting past claims about the implied shape of MW dark halo were due to unnecessarily restrictive assumed dark halo geometries, which did not yield a simultaneous fit to all the data. But when a fully general triaxial geometry is allowed (as typical of CDM halos), the best fit is a near-oblate halo with its spin axis perpendicular to the MW disk. Further observational data are needed to validate or refute this very surprising result. We therefore propose to map for the first time the variation in proper motion along the Stream. The only existing measurements to date, obtained by the CoIs from 90 years of ground-based data, are restricted to the trailing side of the Stream, and have 10 times larger errorbars than achievable with HST. We will target four fields with ACS/WFC for which serendipitous first epoch observations exist in the Archive. Proper motion accuracies near 5 km/s will be achieved by measuring the relative motion between Stream stars and background galaxies, using established techniques developed by us in the context of ongoing programs. The results will provide a large improvement in our understanding of the MW dark halo, solar circular velocity, and Sgr dSph history. ------------------------------------------------------------------------------------ Observations Description ------------------------ To measure the absolute proper motion of stars associated with the Sagittarius stream in the four target fields, we will use compact background galaxies in the field of view as stationary reference sources. We will measure the average motion of stars in each target field between epochs 1 and 2 with respect to their reference sources. Our analysis techniques and expected accuracies are described in the Phase I proposal. First epoch ACS data are available in the archive from previous observing programs. The present project will obtain the 12564( 6) - 27-Apr-2012 11:52:09 - [ 2] second epoch data. We will observe each target field for 4 orbits with ACS/WFC. We will use the I-band (F814W or F775W filter, depending on what was used in epoch 1) for astrometry and the V-band (F606W filter) to construct color-magntude diagrams (CMDs). Individual exposures will be dithered using customized patterns designed by J. Anderson (STScI) to maximize pixel phase coverage. We require that all of our images be obtained in 30 day windows so that they can be treated as single epoch data for astrometric analyses. During our second epoch observations, the WFC3/UVIS camera will be pointed ~6 arcmin away from our target fields. These parallel fields will be observed with F814W and F606W filters to construct CMDs and to study additional stellar population of the Sagittarius stream. Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 12564( 6) - 27-Apr-2012 11:52:09 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 SGR-STREAM-1 STAR, HALO RA=02H09M37.2573S +/- 0.1", J2000 V = 22 +/- 2 DEC=-04D38'31.22" +/- 0.1" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 2 SGR-STREAM-2 STAR, HALO RA=18H35M45.7000S +/- 0.1", J2000 V = 22 +/- 2 DEC=-32D59'25.00" +/- 0.1" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 3 SGR-STREAM-3 STAR, HALO RA=14H12M4.8465S +/- 0.1", J2000 V = 22 +/- 2 DEC=-01D02'1.00" +/- 0.1" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 4 SGR-STREAM-4 STAR, HALO RA=11H59M6.2156S +/- 0.1", J2000 V = 22 +/- 2 DEC=+13D37'19.19" +/- 0.1" Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 12564( 6) - 27-Apr-2012 11:52:09 - [ 4] Visit: 01 Visit Requirements: SCHED 80%; ORIENT 357.807495D TO 357.807495 D; GROUP 01, 02 WITHIN 30D On Hold Comments: Additional Comments: This is the first visit for imaging SGRSTREAM-FIELD1. Two orbits are required to complete this visit. Since our goal is to measure proper motions of stars in the target field, our orientation is set to exactly match the previous observations of PID 9760. We adopt a customized dither pattern designed to optimally cover the pixel phase using the POS-TARG special requirements. We require that Visits 01 and 02 be observed in a 30 day window so that they can be treated as single epoch data for astrometric analysis. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SGR-STREAM- ACS/WFC ACCUM WFC F814W 1 1169 S POS TARG 0.000, null; 1 SEQ 1-4 NON-INT; PAR 2 WITH 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 SGR-STREAM- WFC3/UVI ACCUM UVIS F606W 1 1229 S 1 S ------------------------------------------------------------------------------------------------------------------------------------ 3 SGR-STREAM- ACS/WFC ACCUM WFC F814W 1 1168 S POS TARG 0.16471, 1 0.01238; PAR 4 WITH 3 ------------------------------------------------------------------------------------------------------------------------------------ 4 SGR-STREAM- WFC3/UVI ACCUM UVIS F814W 1 1270 S 1 S ------------------------------------------------------------------------------------------------------------------------------------ 5 SGR-STREAM- ACS/WFC ACCUM WFC F814W 1 1265 S POS TARG 0.32931, 1 0.02475; SEQ 5-8 NON-INT; PAR 6 WITH 5 ------------------------------------------------------------------------------------------------------------------------------------ 6 SGR-STREAM- WFC3/UVI ACCUM UVIS F606W 1 1252 S 1 S ------------------------------------------------------------------------------------------------------------------------------------ 7 SGR-STREAM- ACS/WFC ACCUM WFC F814W 1 1265 S POS TARG 0.07467, 1 0.12938; PAR 8 WITH 7 ------------------------------------------------------------------------------------------------------------------------------------ 8 SGR-STREAM- WFC3/UVI ACCUM UVIS F814W 1 1368 S 1 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 | ------------------------------------------------------------------------------------------------------------------------------------ SGR-STREAM-1 1 ACS/WFC ACCUM WFC F814W none none none none 1 N/A SGR-STREAM-1 2 WFC3/UVI ACCUM UVIS F606W none none none none 1 N/A S SGR-STREAM-1 3 ACS/WFC ACCUM WFC F814W none none none none 1 N/A 12564( 6) - 27-Apr-2012 11:52:09 - [ 5] 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 | ------------------------------------------------------------------------------------------------------------------------------------ SGR-STREAM-1 4 WFC3/UVI ACCUM UVIS F814W none none none none 1 N/A S SGR-STREAM-1 5 ACS/WFC ACCUM WFC F814W none none none none 2 N/A SGR-STREAM-1 6 WFC3/UVI ACCUM UVIS F606W none none none none 2 N/A S SGR-STREAM-1 7 ACS/WFC ACCUM WFC F814W none none none none 2 N/A SGR-STREAM-1 8 WFC3/UVI ACCUM UVIS F814W none none none none 2 N/A S 12564( 6) - 27-Apr-2012 11:52:09 - [ 6] Visit: 02 Visit Requirements: SCHED 80%; ORIENT 357.807495D TO 357.807495 D; GROUP 02, 01 WITHIN 30D On Hold Comments: Additional Comments: This is the second visit for imaging SGRSTREAM-FIELD1. Two orbits are required to complete this visit. Since our goal is to measure proper motions of stars in the target field, our orientation is set to exactly match the previous observations of PID 9760. We adopt a customized dither pattern designed to optimally cover the pixel phase using the POS-TARG special requirements. We require that Visits 01 and 02 be observed in a 30 day window so that they can be treated as single epoch data for astrometric analysis. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SGR-STREAM- ACS/WFC ACCUM WFC F814W 1 1169 S POS TARG 0.23934, 1 0.14176; SEQ 1-4 NON-INT; PAR 2 WITH 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 SGR-STREAM- WFC3/UVI ACCUM UVIS F606W 1 1229 S 1 S ------------------------------------------------------------------------------------------------------------------------------------ 3 SGR-STREAM- ACS/WFC ACCUM WFC F814W 1 1168 S POS TARG 0.40394, 1 0.15413; PAR 4 WITH 3 ------------------------------------------------------------------------------------------------------------------------------------ 4 SGR-STREAM- WFC3/UVI ACCUM UVIS F814W 1 1270 S 1 S ------------------------------------------------------------------------------------------------------------------------------------ 5 SGR-STREAM- ACS/WFC ACCUM WFC F606W 1 1228 S POS TARG 0.0000, 0.0000; 1 SEQ 5-8 NON-INT; PAR 6 WITH 5 ------------------------------------------------------------------------------------------------------------------------------------ 6 SGR-STREAM- WFC3/UVI ACCUM UVIS F606W 1 1270 S 1 S ------------------------------------------------------------------------------------------------------------------------------------ 7 SGR-STREAM- ACS/WFC ACCUM WFC F606W 1 1247 S POS TARG 0.0990, 0.1070; 1 PAR 8 WITH 7 ------------------------------------------------------------------------------------------------------------------------------------ 8 SGR-STREAM- WFC3/UVI ACCUM UVIS F814W 1 1350 S 1 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 | ------------------------------------------------------------------------------------------------------------------------------------ SGR-STREAM-1 1 ACS/WFC ACCUM WFC F814W none none none none 1 N/A SGR-STREAM-1 2 WFC3/UVI ACCUM UVIS F606W none none none none 1 N/A S SGR-STREAM-1 3 ACS/WFC ACCUM WFC F814W none none none none 1 N/A 12564( 6) - 27-Apr-2012 11:52:09 - [ 7] 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 | ------------------------------------------------------------------------------------------------------------------------------------ SGR-STREAM-1 4 WFC3/UVI ACCUM UVIS F814W none none none none 1 N/A S SGR-STREAM-1 5 ACS/WFC ACCUM WFC F606W none none none none 2 N/A SGR-STREAM-1 6 WFC3/UVI ACCUM UVIS F606W none none none none 2 N/A S SGR-STREAM-1 7 ACS/WFC ACCUM WFC F606W none none none none 2 N/A SGR-STREAM-1 8 WFC3/UVI ACCUM UVIS F814W none none none none 2 N/A S 12564( 6) - 27-Apr-2012 11:52:09 - [ 8] Visit: 03 Visit Requirements: ORIENT 281.820396D TO 281.820396 D; GROUP 03, 04 WITHIN 30D On Hold Comments: Additional Comments: This is the first visit for imaging SGRSTREAM-FIELD2. Two orbits are required to complete this visit. Since our goal is to measure proper motions of stars in the target field, our orientation is set to exactly match the previous observations of PID 10775. We adopt a customized dither pattern designed to optimally cover the pixel phase using the POS-TARG special requirements. We require that Visits 03 and 04 be observed in a 30 day window so that they can be treated as single epoch data for astrometric analysis. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SGR-STREAM- ACS/WFC ACCUM WFCENTER F814W 1 802 S POS TARG 0.0000, null; 2 SEQ 1-6 NON-INT; PAR 2 WITH 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 SGR-STREAM- WFC3/UVI ACCUM UVIS F606W 1 862 S 2 S ------------------------------------------------------------------------------------------------------------------------------------ 3 SGR-STREAM- ACS/WFC ACCUM WFCENTER F814W 1 802 S POS TARG 0.21409, 2 0.01609; PAR 4 WITH 3 ------------------------------------------------------------------------------------------------------------------------------------ 4 SGR-STREAM- WFC3/UVI ACCUM UVIS F814W 1 801 S 2 S ------------------------------------------------------------------------------------------------------------------------------------ 5 SGR-STREAM- ACS/WFC ACCUM WFCENTER F814W 1 802 S POS TARG 0.42806, 2 0.03217; PAR 6 WITH 5 ------------------------------------------------------------------------------------------------------------------------------------ 6 SGR-STREAM- WFC3/UVI ACCUM UVIS F814W 1 928 S 2 S ------------------------------------------------------------------------------------------------------------------------------------ 7 SGR-STREAM- ACS/WFC ACCUM WFCENTER F814W 1 861 S POS TARG 0.05037, 2 0.21829; SEQ 7-12 NON-INT; PAR 8 WITH 7 ------------------------------------------------------------------------------------------------------------------------------------ 8 SGR-STREAM- WFC3/UVI ACCUM UVIS F606W 1 877 S 2 S ------------------------------------------------------------------------------------------------------------------------------------ 9 SGR-STREAM- ACS/WFC ACCUM WFCENTER F814W 1 861 S POS TARG 0.26442, 2 0.23439; PAR 10 WITH 9 ------------------------------------------------------------------------------------------------------------------------------------ 10 SGR-STREAM- WFC3/UVI ACCUM UVIS F814W 1 876 S 2 S ------------------------------------------------------------------------------------------------------------------------------------ 11 SGR-STREAM- ACS/WFC ACCUM WFCENTER F814W 1 860 S POS TARG 0.47841, 2 0.25048; PAR 12 WITH 11 ------------------------------------------------------------------------------------------------------------------------------------ 12 SGR-STREAM- WFC3/UVI ACCUM UVIS F814W 1 986 S 2 S 12564( 6) - 27-Apr-2012 11:52:09 - [ 9] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SGR-STREAM-2 1 ACS/WFC ACCUM WFCENTER F814W none none none none 1 N/A SGR-STREAM-2 2 WFC3/UVI ACCUM UVIS F606W none none none none 1 N/A S SGR-STREAM-2 3 ACS/WFC ACCUM WFCENTER F814W none none none none 1 N/A SGR-STREAM-2 4 WFC3/UVI ACCUM UVIS F814W none none none none 1 N/A S SGR-STREAM-2 5 ACS/WFC ACCUM WFCENTER F814W none none none none 1 N/A SGR-STREAM-2 6 WFC3/UVI ACCUM UVIS F814W none none none none 1 N/A S SGR-STREAM-2 7 ACS/WFC ACCUM WFCENTER F814W none none none none 2 N/A SGR-STREAM-2 8 WFC3/UVI ACCUM UVIS F606W none none none none 2 N/A S SGR-STREAM-2 9 ACS/WFC ACCUM WFCENTER F814W none none none none 2 N/A SGR-STREAM-2 10 WFC3/UVI ACCUM UVIS F814W none none none none 2 N/A S SGR-STREAM-2 11 ACS/WFC ACCUM WFCENTER F814W none none none none 2 N/A SGR-STREAM-2 12 WFC3/UVI ACCUM UVIS F814W none none none none 2 N/A S 12564( 6) - 27-Apr-2012 11:52:09 - [ 10] Visit: 04 Visit Requirements: ORIENT 281.820396D TO 281.820396 D; GROUP 04, 03 WITHIN 30D On Hold Comments: Additional Comments: This is the second visit for imaging SGRSTREAM-FIELD2. Two orbits are required to complete this visit. Since our goal is to measure proper motions of stars in the target field, our orientation is set to exactly match the previous observations of PID 10775. We adopt a customized dither pattern designed to optimally cover the pixel phase using the POS-TARG special requirements. We require that Visits 03 and 04 be observed in a 30 day window so that they can be treated as single epoch data for astrometric analysis. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SGR-STREAM- ACS/WFC ACCUM WFCENTER F814W 1 801 S POS TARG 0.10075, 2 0.43657; SEQ 1-6 NON-INT; PAR 2 WITH 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 SGR-STREAM- WFC3/UVI ACCUM UVIS F606W 1 862 S 2 S ------------------------------------------------------------------------------------------------------------------------------------ 3 SGR-STREAM- ACS/WFC ACCUM WFCENTER F814W 1 801 S POS TARG 0.31475, 2 0.45267; PAR 4 WITH 3 ------------------------------------------------------------------------------------------------------------------------------------ 4 SGR-STREAM- WFC3/UVI ACCUM UVIS F814W 1 812 S 2 S ------------------------------------------------------------------------------------------------------------------------------------ 5 SGR-STREAM- ACS/WFC ACCUM WFCENTER F814W 1 800 S POS TARG 0.52879, 2 0.46876; PAR 6 WITH 5 ------------------------------------------------------------------------------------------------------------------------------------ 6 SGR-STREAM- WFC3/UVI ACCUM UVIS F814W 1 926 S 2 S ------------------------------------------------------------------------------------------------------------------------------------ 7 SGR-STREAM- ACS/WFC ACCUM WFCENTER F606W 1 838 S POS TARG 0.0000, null; 2 SEQ 7-12 NON-INT; PAR 8 WITH 7 ------------------------------------------------------------------------------------------------------------------------------------ 8 SGR-STREAM- WFC3/UVI ACCUM UVIS F606W 1 877 S 2 S ------------------------------------------------------------------------------------------------------------------------------------ 9 SGR-STREAM- ACS/WFC ACCUM WFCENTER F606W 1 838 S POS TARG 0.1150, 0.1250; 2 PAR 10 WITH 9 ------------------------------------------------------------------------------------------------------------------------------------ 10 SGR-STREAM- WFC3/UVI ACCUM UVIS F814W 1 876 S 2 S ------------------------------------------------------------------------------------------------------------------------------------ 11 SGR-STREAM- ACS/WFC ACCUM WFCENTER F606W 1 837 S POS TARG 0.2310, 0.2490; 2 PAR 12 WITH 11 ------------------------------------------------------------------------------------------------------------------------------------ 12 SGR-STREAM- WFC3/UVI ACCUM UVIS F814W 1 963 S 2 S 12564( 6) - 27-Apr-2012 11:52:09 - [ 11] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SGR-STREAM-2 1 ACS/WFC ACCUM WFCENTER F814W none none none none 1 N/A SGR-STREAM-2 2 WFC3/UVI ACCUM UVIS F606W none none none none 1 N/A S SGR-STREAM-2 3 ACS/WFC ACCUM WFCENTER F814W none none none none 1 N/A SGR-STREAM-2 4 WFC3/UVI ACCUM UVIS F814W none none none none 1 N/A S SGR-STREAM-2 5 ACS/WFC ACCUM WFCENTER F814W none none none none 1 N/A SGR-STREAM-2 6 WFC3/UVI ACCUM UVIS F814W none none none none 1 N/A S SGR-STREAM-2 7 ACS/WFC ACCUM WFCENTER F606W none none none none 2 N/A SGR-STREAM-2 8 WFC3/UVI ACCUM UVIS F606W none none none none 2 N/A S SGR-STREAM-2 9 ACS/WFC ACCUM WFCENTER F606W none none none none 2 N/A SGR-STREAM-2 10 WFC3/UVI ACCUM UVIS F814W none none none none 2 N/A S SGR-STREAM-2 11 ACS/WFC ACCUM WFCENTER F606W none none none none 2 N/A SGR-STREAM-2 12 WFC3/UVI ACCUM UVIS F814W none none none none 2 N/A S 12564( 6) - 27-Apr-2012 11:52:09 - [ 12] Visit: 05 Visit Requirements: ORIENT 145D TO 145 D; GROUP 05, 06 WITHIN 30D On Hold Comments: Additional Comments: This is the first visit for imaging SGRSTREAM-FIELD3. Two orbits are required to complete this visit. Since our goal is to measure proper motions of stars in the target field, our orientation is set to exactly match the previous observations of PID 10417. We adopt a customized dither pattern designed to optimally cover the pixel phase using the POS-TARG special requirements. For each visit we will do a set of 6-point dithering. We require that Visits 05 and 06 be observed in a 30 day window so that they can be treated as single epoch data for astrometric analysis. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SGR-STREAM- ACS/WFC ACCUM WFC1-FIX F775W 1 789 S POS TARG 0.0000, null; 3 GS ACQ SCENARIO BASE1B3; SEQ 1-6 NON-INT; PAR 2 WITH 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 SGR-STREAM- WFC3/UVI ACCUM UVIS F606W 1 869 S 3 S ------------------------------------------------------------------------------------------------------------------------------------ 3 SGR-STREAM- ACS/WFC ACCUM WFC1-FIX F775W 1 788 S POS TARG 0.21409, 3 0.01609; PAR 4 WITH 3 ------------------------------------------------------------------------------------------------------------------------------------ 4 SGR-STREAM- WFC3/UVI ACCUM UVIS F814W 1 795 S 3 S ------------------------------------------------------------------------------------------------------------------------------------ 5 SGR-STREAM- ACS/WFC ACCUM WFC1-FIX F775W 1 788 S POS TARG 0.42806, 3 0.03217; PAR 6 WITH 5 ------------------------------------------------------------------------------------------------------------------------------------ 6 SGR-STREAM- WFC3/UVI ACCUM UVIS F814W 1 914 S 3 S ------------------------------------------------------------------------------------------------------------------------------------ 7 SGR-STREAM- ACS/WFC ACCUM WFC1-FIX F775W 1 853 S POS TARG 0.05037, 3 0.21829; SEQ 7-12 NON-INT; PAR 8 WITH 7 ------------------------------------------------------------------------------------------------------------------------------------ 8 SGR-STREAM- WFC3/UVI ACCUM UVIS F606W 1 860 S 3 S ------------------------------------------------------------------------------------------------------------------------------------ 9 SGR-STREAM- ACS/WFC ACCUM WFC1-FIX F775W 1 853 S POS TARG 0.26442, 3 0.23439; PAR 10 WITH 9 ------------------------------------------------------------------------------------------------------------------------------------ 10 SGR-STREAM- WFC3/UVI ACCUM UVIS F814W 1 850 S 3 S ------------------------------------------------------------------------------------------------------------------------------------ 11 SGR-STREAM- ACS/WFC ACCUM WFC1-FIX F775W 1 852 S POS TARG 0.47841, 3 0.25048; PAR 12 WITH 11 ------------------------------------------------------------------------------------------------------------------------------------ 12564( 6) - 27-Apr-2012 11:52:09 - [ 13] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 12 SGR-STREAM- WFC3/UVI ACCUM UVIS F814W 1 970 S 3 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 | ------------------------------------------------------------------------------------------------------------------------------------ SGR-STREAM-3 1 ACS/WFC ACCUM WFC1-FIX F775W none none none none 1 N/A SGR-STREAM-3 2 WFC3/UVI ACCUM UVIS F606W none none none none 1 N/A S SGR-STREAM-3 3 ACS/WFC ACCUM WFC1-FIX F775W none none none none 1 N/A SGR-STREAM-3 4 WFC3/UVI ACCUM UVIS F814W none none none none 1 N/A S SGR-STREAM-3 5 ACS/WFC ACCUM WFC1-FIX F775W none none none none 1 N/A SGR-STREAM-3 6 WFC3/UVI ACCUM UVIS F814W none none none none 1 N/A S SGR-STREAM-3 7 ACS/WFC ACCUM WFC1-FIX F775W none none none none 2 N/A SGR-STREAM-3 8 WFC3/UVI ACCUM UVIS F606W none none none none 2 N/A S SGR-STREAM-3 9 ACS/WFC ACCUM WFC1-FIX F775W none none none none 2 N/A SGR-STREAM-3 10 WFC3/UVI ACCUM UVIS F814W none none none none 2 N/A S SGR-STREAM-3 11 ACS/WFC ACCUM WFC1-FIX F775W none none none none 2 N/A SGR-STREAM-3 12 WFC3/UVI ACCUM UVIS F814W none none none none 2 N/A S 12564( 6) - 27-Apr-2012 11:52:09 - [ 14] Visit: 06 Visit Requirements: ORIENT 145D TO 145 D; GROUP 06, 05 WITHIN 30D On Hold Comments: Additional Comments: This is the second visit for imaging SGRSTREAM-FIELD3. Two orbits are required to complete this visit. Since our goal is to measure proper motions of stars in the target field, our orientation is set to exactly match the previous observations of PID 10417. We adopt a customized dither pattern designed to optimally cover the pixel phase using the POS-TARG special requirements. For each visit we will do a set of 6-point dithering. We require that Visits 05 and 06 be observed in a 30 day window so that they can be treated as single epoch data for astrometric analysis. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SGR-STREAM- ACS/WFC ACCUM WFC1-FIX F775W 1 789 S POS TARG 0.10075, 3 0.43657; GS ACQ SCENARIO BASE1B3; SEQ 1-6 NON-INT; PAR 2 WITH 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 SGR-STREAM- WFC3/UVI ACCUM UVIS F606W 1 869 S 3 S ------------------------------------------------------------------------------------------------------------------------------------ 3 SGR-STREAM- ACS/WFC ACCUM WFC1-FIX F775W 1 788 S POS TARG 0.31475, 3 0.45267; PAR 4 WITH 3 ------------------------------------------------------------------------------------------------------------------------------------ 4 SGR-STREAM- WFC3/UVI ACCUM UVIS F814W 1 795 S 3 S ------------------------------------------------------------------------------------------------------------------------------------ 5 SGR-STREAM- ACS/WFC ACCUM WFC1-FIX F775W 1 788 S POS TARG 0.52879, 3 0.46876; PAR 6 WITH 5 ------------------------------------------------------------------------------------------------------------------------------------ 6 SGR-STREAM- WFC3/UVI ACCUM UVIS F814W 1 914 S 3 S ------------------------------------------------------------------------------------------------------------------------------------ 7 SGR-STREAM- ACS/WFC ACCUM WFC1-FIX F606W 1 838 S POS TARG 0.0000, 0.0000; 3 SEQ 7-12 NON-INT; PAR 8 WITH 7 ------------------------------------------------------------------------------------------------------------------------------------ 8 SGR-STREAM- WFC3/UVI ACCUM UVIS F606W 1 889 S 3 S ------------------------------------------------------------------------------------------------------------------------------------ 9 SGR-STREAM- ACS/WFC ACCUM WFC1-FIX F606W 1 835 S POS TARG 0.1150, 0.1250; 3 PAR 10 WITH 9 ------------------------------------------------------------------------------------------------------------------------------------ 10 SGR-STREAM- WFC3/UVI ACCUM UVIS F814W 1 849 S 3 S ------------------------------------------------------------------------------------------------------------------------------------ 11 SGR-STREAM- ACS/WFC ACCUM WFC1-FIX F606W 1 834 S POS TARG 0.2310, 0.2490; 3 PAR 12 WITH 11 ------------------------------------------------------------------------------------------------------------------------------------ 12564( 6) - 27-Apr-2012 11:52:09 - [ 15] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 12 SGR-STREAM- WFC3/UVI ACCUM UVIS F814W 1 960 S 3 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 | ------------------------------------------------------------------------------------------------------------------------------------ SGR-STREAM-3 1 ACS/WFC ACCUM WFC1-FIX F775W none none none none 1 N/A SGR-STREAM-3 2 WFC3/UVI ACCUM UVIS F606W none none none none 1 N/A S SGR-STREAM-3 3 ACS/WFC ACCUM WFC1-FIX F775W none none none none 1 N/A SGR-STREAM-3 4 WFC3/UVI ACCUM UVIS F814W none none none none 1 N/A S SGR-STREAM-3 5 ACS/WFC ACCUM WFC1-FIX F775W none none none none 1 N/A SGR-STREAM-3 6 WFC3/UVI ACCUM UVIS F814W none none none none 1 N/A S SGR-STREAM-3 7 ACS/WFC ACCUM WFC1-FIX F606W none none none none 2 N/A SGR-STREAM-3 8 WFC3/UVI ACCUM UVIS F606W none none none none 2 N/A S SGR-STREAM-3 9 ACS/WFC ACCUM WFC1-FIX F606W none none none none 2 N/A SGR-STREAM-3 10 WFC3/UVI ACCUM UVIS F814W none none none none 2 N/A S SGR-STREAM-3 11 ACS/WFC ACCUM WFC1-FIX F606W none none none none 2 N/A SGR-STREAM-3 12 WFC3/UVI ACCUM UVIS F814W none none none none 2 N/A S 12564( 6) - 27-Apr-2012 11:52:09 - [ 16] Visit: 07 Visit Requirements: ORIENT 129.9988D TO 129.9988 D; GROUP 07, 08 WITHIN 30D On Hold Comments: Additional Comments: This is the first visit for imaging SGRSTREAM-FIELD4. Two orbits are required to complete this visit. Since our goal is to measure proper motions of stars in the target field, our orientation is set to exactly match the previous observations of PID 10417. We adopt a customized dither pattern designed to optimally cover the pixel phase using the POS-TARG special requirements. We require that Visits 07 and 08 be observed in a 30 day window so that they can be treated as single epoch data for astrometric analysis. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SGR-STREAM- ACS/WFC ACCUM WFC1-FIX F775W 1 300 S POS TARG 0.0000, null; 4 SEQ 1-6 NON-INT; PAR 2 WITH 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 SGR-STREAM- WFC3/UVI ACCUM UVIS F814W 1 360 S 4 S ------------------------------------------------------------------------------------------------------------------------------------ 3 SGR-STREAM- ACS/WFC ACCUM WFC1-FIX F775W 1 1048 S POS TARG 0.00000, 4 0.00000; PAR 4 WITH 3 ------------------------------------------------------------------------------------------------------------------------------------ 4 SGR-STREAM- WFC3/UVI ACCUM UVIS F606W 1 1035 S 4 S ------------------------------------------------------------------------------------------------------------------------------------ 5 SGR-STREAM- ACS/WFC ACCUM WFC1-FIX F775W 1 1048 S POS TARG 0.16471, 4 0.01238; PAR 6 WITH 5 ------------------------------------------------------------------------------------------------------------------------------------ 6 SGR-STREAM- WFC3/UVI ACCUM UVIS F814W 1 1151 S 4 S ------------------------------------------------------------------------------------------------------------------------------------ 7 SGR-STREAM- ACS/WFC ACCUM WFC1-FIX F775W 1 300 S POS TARG 0.32931, 4 0.02475; SEQ 7-12 NON-INT; PAR 8 WITH 7 ------------------------------------------------------------------------------------------------------------------------------------ 8 SGR-STREAM- WFC3/UVI ACCUM UVIS F814W 1 360 S 4 S ------------------------------------------------------------------------------------------------------------------------------------ 9 SGR-STREAM- ACS/WFC ACCUM WFC1-FIX F775W 1 1120 S POS TARG 0.32931, 4 0.02475; PAR 10 WITH 9 ------------------------------------------------------------------------------------------------------------------------------------ 10 SGR-STREAM- WFC3/UVI ACCUM UVIS F606W 1 1107 S 4 S ------------------------------------------------------------------------------------------------------------------------------------ 11 SGR-STREAM- ACS/WFC ACCUM WFC1-FIX F775W 1 1119 S POS TARG 0.07467, 4 0.12938; PAR 12 WITH 11 ------------------------------------------------------------------------------------------------------------------------------------ 12 SGR-STREAM- WFC3/UVI ACCUM UVIS F814W 1 1222 S 4 S 12564( 6) - 27-Apr-2012 11:52:09 - [ 17] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SGR-STREAM-4 1 ACS/WFC ACCUM WFC1-FIX F775W none none none none 1 N/A SGR-STREAM-4 2 WFC3/UVI ACCUM UVIS F814W none none none none 1 N/A S SGR-STREAM-4 3 ACS/WFC ACCUM WFC1-FIX F775W none none none none 1 N/A SGR-STREAM-4 4 WFC3/UVI ACCUM UVIS F606W none none none none 1 N/A S SGR-STREAM-4 5 ACS/WFC ACCUM WFC1-FIX F775W none none none none 1 N/A SGR-STREAM-4 6 WFC3/UVI ACCUM UVIS F814W none none none none 1 N/A S SGR-STREAM-4 7 ACS/WFC ACCUM WFC1-FIX F775W none none none none 2 N/A SGR-STREAM-4 8 WFC3/UVI ACCUM UVIS F814W none none none none 2 N/A S SGR-STREAM-4 9 ACS/WFC ACCUM WFC1-FIX F775W none none none none 2 N/A SGR-STREAM-4 10 WFC3/UVI ACCUM UVIS F606W none none none none 2 N/A S SGR-STREAM-4 11 ACS/WFC ACCUM WFC1-FIX F775W none none none none 2 N/A SGR-STREAM-4 12 WFC3/UVI ACCUM UVIS F814W none none none none 2 N/A S 12564( 6) - 27-Apr-2012 11:52:09 - [ 18] Visit: 08 Visit Requirements: ORIENT 129.9988D TO 129.9988 D; GROUP 08, 07 WITHIN 30D On Hold Comments: Additional Comments: This is the first visit for imaging SGRSTREAM-FIELD4. Two orbits are required to complete this visit. Since our goal is to measure proper motions of stars in the target field, our orientation is set to exactly match the previous observations of PID 10417. We adopt a customized dither pattern designed to optimally cover the pixel phase using the POS-TARG special requirements. We require that Visits 07 and 08 be observed in a 30 day window so that they can be treated as single epoch data for astrometric analysis. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SGR-STREAM- ACS/WFC ACCUM WFC1-FIX F775W 1 300 S POS TARG 0.23934, 4 0.14176; SEQ 1-6 NON-INT; PAR 2 WITH 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 SGR-STREAM- WFC3/UVI ACCUM UVIS F814W 1 300 S 4 S ------------------------------------------------------------------------------------------------------------------------------------ 3 SGR-STREAM- ACS/WFC ACCUM WFC1-FIX F775W 1 1048 S POS TARG 0.23934, 4 0.14176; PAR 4 WITH 3 ------------------------------------------------------------------------------------------------------------------------------------ 4 SGR-STREAM- WFC3/UVI ACCUM UVIS F606W 1 1025 S 4 S ------------------------------------------------------------------------------------------------------------------------------------ 5 SGR-STREAM- ACS/WFC ACCUM WFC1-FIX F775W 1 1048 S POS TARG 0.40394, 4 0.15413; PAR 6 WITH 5 ------------------------------------------------------------------------------------------------------------------------------------ 6 SGR-STREAM- WFC3/UVI ACCUM UVIS F814W 1 1141 S 4 S ------------------------------------------------------------------------------------------------------------------------------------ 7 SGR-STREAM- ACS/WFC ACCUM WFC1-FIX F606W 1 300 S POS TARG 0.00000, 4 0.0000; SEQ 7-12 NON-INT; PAR 8 WITH 7 ------------------------------------------------------------------------------------------------------------------------------------ 8 SGR-STREAM- WFC3/UVI ACCUM UVIS F814W 1 360 S 4 S ------------------------------------------------------------------------------------------------------------------------------------ 9 SGR-STREAM- ACS/WFC ACCUM WFC1-FIX F606W 1 1119 S POS TARG 0.0000, 0.0000; 4 PAR 10 WITH 9 ------------------------------------------------------------------------------------------------------------------------------------ 10 SGR-STREAM- WFC3/UVI ACCUM UVIS F606W 1 1106 S 4 S ------------------------------------------------------------------------------------------------------------------------------------ 11 SGR-STREAM- ACS/WFC ACCUM WFC1-FIX F606W 1 1118 S POS TARG 0.0990, 0.1070; 4 PAR 12 WITH 11 ------------------------------------------------------------------------------------------------------------------------------------ 12 SGR-STREAM- WFC3/UVI ACCUM UVIS F814W 1 1223 S 4 S 12564( 6) - 27-Apr-2012 11:52:09 - [ 19] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ SGR-STREAM-4 1 ACS/WFC ACCUM WFC1-FIX F775W none none none none 1 N/A SGR-STREAM-4 2 WFC3/UVI ACCUM UVIS F814W none none none none 1 N/A S SGR-STREAM-4 3 ACS/WFC ACCUM WFC1-FIX F775W none none none none 1 N/A SGR-STREAM-4 4 WFC3/UVI ACCUM UVIS F606W none none none none 1 N/A S SGR-STREAM-4 5 ACS/WFC ACCUM WFC1-FIX F775W none none none none 1 N/A SGR-STREAM-4 6 WFC3/UVI ACCUM UVIS F814W none none none none 1 N/A S SGR-STREAM-4 7 ACS/WFC ACCUM WFC1-FIX F606W none none none none 2 N/A SGR-STREAM-4 8 WFC3/UVI ACCUM UVIS F814W none none none none 2 N/A S SGR-STREAM-4 9 ACS/WFC ACCUM WFC1-FIX F606W none none none none 2 N/A SGR-STREAM-4 10 WFC3/UVI ACCUM UVIS F606W none none none none 2 N/A S SGR-STREAM-4 11 ACS/WFC ACCUM WFC1-FIX F606W none none none none 2 N/A SGR-STREAM-4 12 WFC3/UVI ACCUM UVIS F814W none none none none 2 N/A S 12564( 6) - 27-Apr-2012 11:52:09 - [ 20] Summary Form for Proposal 12564 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures UVIS, WFC, WFC1-FIX, WFCENTER ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/WFC, WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements GROUP 01, 02 WITHIN 30D, GROUP 02, 01 WITHIN 30D, GROUP 03, 04 WITHIN 30D, GROUP 04, 03 WITHIN 30D, GROUP 05, 06 WITHIN 30D, GROUP 06, 05 WITHIN 30D, GROUP 07, 08 WITHIN 30D, GROUP 08, 07 WITHIN 30D, GS ACQ SCENARIO BASE1B3, ORIENT 129.9988D TO 129.9988 D, ORIENT 145D TO 145 D, ORIENT 281.820396D TO 281.820396 D, ORIENT 357.807495D TO 357.807495 D, PAR 10 WITH 9, PAR 12 WITH 11, PAR 2 WITH 1, PAR 4 WITH 3, PAR 6 WITH 5, PAR 8 WITH 7, POS TARG 0.000, null, POS TARG 0.0000, 0.0000, POS TARG 0.0000, null, POS TARG 0.00000, 0.0000, POS TARG 0.00000, 0.00000, POS TARG 0.05037, 0.21829, POS TARG 0.07467, 0.12938, POS TARG 0.0990, 0.1070, POS TARG 0.10075, 0.43657, POS TARG 0.1150, 0.1250, POS TARG 0.16471, 0.01238, POS TARG 0.21409, 0.01609, POS TARG 0.2310, 0.2490, POS TARG 0.23934, 0.14176, POS TARG 0.26442, 0.23439, POS TARG 0.31475, 0.45267, POS TARG 0.32931, 0.02475, POS TARG 0.40394, 0.15413, POS TARG 0.42806, 0.03217, POS TARG 0.47841, 0.25048, POS TARG 0.52879, 0.46876, SCHED 80%, SEQ 1-4 NON-INT, SEQ 1-6 NON-INT, SEQ 5-8 NON-INT, SEQ 7-12 NON-INT ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F606W, F775W, F814W ------------------------------------------------------------------------------------------------------------------------------------ Target Names SGR-STREAM-1, SGR-STREAM-2, SGR-STREAM-3, SGR-STREAM-4 ------------------------------------------------------------------------------------------------------------------------------------