Resolved Proper Motions of M31 and the M31-M32 Interaction

Edited PDF, changed title 486560541 Assigned ID: 80 ----- Attempting Submission 1 (Mon Aug 13 19:14:36 GMT 2018) ----- HST Phase I Proposal 80 (M31.apt) successfully submitted. Receipt: # 80-1 ----- Attempting Submission 2 (Fri Aug 17 20:52:35 GMT 2018) ----- HST Phase I Proposal 80 (M31.apt) successfully submitted. Receipt: # 80-2 ----- Attempting Submission 3 (Fri Aug 17 22:10:23 GMT 2018) ----- The number of orbits used exceeds the number allocated Added visit 62 which is a 2-orbit long HOPR-approved partial repeat of the failed visit 52. Changed the orientation range to +/-15 deg from the original orientation to increase scheduleability. 302205810 ----- Attempting Submission 1 (Tue Nov 27 15:40:10 GMT 2018) ----- ----- Attempting Submission 2 (Tue Dec 11 17:30:24 GMT 2018) ----- ----- Attempting Submission 3 (Thu Dec 13 16:32:35 GMT 2018) ----- ----- Attempting Submission 4 (Tue Dec 03 15:36:51 GMT 2019) ----- ----- Attempting Submission 5 (Tue Dec 31 17:23:17 GMT 2019) ----- HST Phase II Proposal 15658 (15658-RepeatV02.apt) successfully submitted. Receipt: # 15658-5 ----- Attempting Submission 6 (Tue Dec 31 21:12:41 GMT 2019) ----- ----- Attempting Submission 7 (Wed Jan 22 15:15:57 GMT 2020) ----- 2 orbits of Visit 52 failed, and a HOPR was approved to reobserve them. Resolved Proper Motions of M31 and the M31-M32 Interaction We propose to measure the proper motion (PM) of M31 stars to unprecedented precision, using multi-epoch HST data of seven ACS/WFC fields. Our first goal is to measure M31's mean tangential motion with a precision nearly triple that of the previous HST and Gaia measurements. The better-determined center-of-mass (COM) motion of M31 will be essential for refining models of the local Universe, the orbits of objects in M31's halo, the total dark matter halo masses of the Milky Way (MW) and M31, and the evolution and fate of the MW. Second, we will clearly resolve the internal kinematics of M31 with PMs. We will obtain useful precision for multiple structural components and even the brighter individual stars. We will measure the bulk flows between cold components such as M31's disk and giant stream, and resolve the tangential velocity dispersion in M31's hot halo. Third, we will obtain the PM of M32 for the first time. This will provide crucial information about M32's orbit, evolution, and interactions with M31. In particular, we will test scenarios where it is the stripped remnant of a major merger, responsible for shaping many of M31's properties. Gaia (which can only measure young M31 disk stars) cannot undertake the differential PM investigations proposed here, and would require many more years of data to compete with our expected M31 COM motion. Based on previous works, the PM accuracies required for our scientific goals are well within reach of HST's demonstrated capabilities. HST's 2012 M31 bulk PM measurements were highly publicized, but due to HST's longevity it is now possible to address many new questions that were previously out of reach. The primary goals of this program are to measure the proper motion (PM) of M31 to unprecedented accuracy, and to measure the PM of M32 for the first time. We will target 7 fields in total that have existing deep ACS/WFC imaging data. These are SPHEROID, OUTERDISK, TIDALSTREAM, HALO21, HALO35, M32, and M32-CONTROL. The first three fields are the SPHEROID, OUTERDISK, and TIDALSTREAM fields studied in Sohn et al. (2012). The next two fields are HALO21 and HALO35. These are located along the minor axis in the M31 halo at projected distances of 21 and 35 kpc, respectively, and were obtained in 2006 to study the stellar population of distant halo stars of M31 (Brown et al. 2007, 2008). The last two fields are M32 and M32-CONTROL which were observed as part of program GO-9392 (PI: M. Mateo) to study the RR Lyrae population of M32. The M32-CONTROL field is offset from the center of M32 by ~4 arcmin in the opposite direction of M31 to lower contamination from the M31 disk stars. Each target field will be re-observed for 5 orbits with ACS/WFC using the same field locations and telescope orientations as the first-epoch images. We will image all target fields using either the F606W or F814W filter to measure PMs. Each orbit will be split into two half orbit exposures, and we will use dithered patterns specially designed to maximize pixel-phase coverage. We will also use coordinated parallel observations using WFC3/UVIS to study the number density of M31 stars that are 6 arcmin away from our primary target fields. Stellar Populations Stellar Populations 6 false false false false false false 0.0 0.0 false SUPPORTED GALAXY DISK HALO SPIRAL J2000 J2000 GALAXY DISK HALO SPIRAL J2000 J2000 GALAXY DISK HALO SPIRAL J2000 J2000 GALAXY DISK HALO SPIRAL J2000 J2000 GALAXY DISK HALO SPIRAL J2000 J2000 GALAXY DWARF ELLIPTICAL J2000 J2000 GALAXY DWARF ELLIPTICAL J2000 J2000 ACS/WFC Imaging No No F606W ACS/WFC Imaging No No F606W ACS/WFC Imaging No No F606W ACS/WFC Imaging No No F606W ACS/WFC Imaging No No F606W ACS/WFC Imaging No No F606W ACS/WFC Imaging No No F606W WFC3/UVIS Imaging No No F606W WFC3/UVIS Imaging No No F606W WFC3/UVIS Imaging No No F606W WFC3/UVIS Imaging No No F606W WFC3/UVIS Imaging No No F814W WFC3/UVIS Imaging No No F606W WFC3/UVIS Imaging No No F814W WFC3/UVIS Imaging No No F606W WFC3/UVIS Imaging No No F814W WFC3/UVIS Imaging No No F606W WFC3/UVIS Imaging No No F814W The scheduling data was generated by CASM 27.2. CASM was run in Phase II mode. 1579703184412 /Users/tsohn/Dropbox/HST Phase II/15658-M31+M32/OP-cache/15658-RepeatV52-v01.xml This is the visit for imaging the M31-SPHEROID field with ACS/WFC as primary and WFC3/UVIS as parallel. We will image both fields only using the F606W filters. Five orbits are required to complete this visit. Each orbit consists of two long exposures. To maximize the time baseline w.r.t. the earlier epochs, we added Timing Requirements of "After 01-FEB-2019" for this visit. We have also added Orient Ranges requirements to align our images with the previous epoch images. We implemented a custom-designed dither pattern via the POS-TARG requirement. 1575958334000 75.13999999999999 (Tic-Visit :proposal-id 15658 :visit-id "01" :proposal-version -1 :trans-version "20190514" :date "22-Jan-2020 09:26:23.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 5 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 5729680 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15658 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15658 :visit-id "01" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2904 :al-overhead-at-end 27 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "01" :orbit-number 2 :pcs-time 302 :si-vis-utilization 2896 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "01" :orbit-number 3 :pcs-time 302 :si-vis-utilization 2896 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "01" :orbit-number 4 :pcs-time 302 :si-vis-utilization 2896 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "01" :orbit-number 5 :pcs-time 302 :si-vis-utilization 2896 :al-overhead-at-end 0 :internal-dur-at-end 1015 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) true 5 0 The scheduling data was generated by CASM 27.2. CASM was run in Phase II mode. 1579703187760 /Users/tsohn/Dropbox/HST Phase II/15658-M31+M32/OP-cache/15658-RepeatV52-v02.xml This is the visit for imaging the M31-OUTERDISK field with ACS/WFC as primary and WFC3/UVIS as parallel. We will image both fields only using the F606W filters. Five orbits are required to complete this visit. Each orbit consists of two long exposures. To maximize the time baseline w.r.t. the earlier epochs, we added Timing Requirements of "After 01-FEB-2019" for this visit. We have also added Orient Ranges requirements to align our images with the previous epoch images. We implemented a custom-designed dither pattern via the POS-TARG requirement. 1577412204000 67.09 (Tic-Visit :proposal-id 15658 :visit-id "02" :proposal-version -1 :trans-version "20190514" :date "22-Jan-2020 09:26:26.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 5 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 5729680 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15658 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15658 :visit-id "02" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2904 :al-overhead-at-end 27 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "02" :orbit-number 2 :pcs-time 302 :si-vis-utilization 2896 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "02" :orbit-number 3 :pcs-time 302 :si-vis-utilization 2896 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "02" :orbit-number 4 :pcs-time 302 :si-vis-utilization 2896 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "02" :orbit-number 5 :pcs-time 302 :si-vis-utilization 2896 :al-overhead-at-end 0 :internal-dur-at-end 1015 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) true 5 0 The scheduling data was generated by CASM 27.2. CASM was run in Phase II mode. 1579703192350 /Users/tsohn/Dropbox/HST Phase II/15658-M31+M32/OP-cache/15658-RepeatV52-v03.xml This is the visit for imaging the M31-TIDALSTREAM field with ACS/WFC as primary and WFC3/UVIS as parallel. We will image both fields only using the F606W filters. Five orbits are required to complete this visit. Each orbit consists of two long exposures. To maximize the time baseline w.r.t. the earlier epochs, we added Timing Requirements of "After 01-FEB-2019" for this visit. We have also added Orient Ranges requirements to align our images with the previous epoch images. We implemented a custom-designed dither pattern via the POS-TARG requirement. 1568111040000 201.92000000000002 (Tic-Visit :proposal-id 15658 :visit-id "03" :proposal-version -1 :trans-version "20190514" :date "22-Jan-2020 09:26:31.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 5 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 5729680 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15658 :visit-id "03" :obset-id "03" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15658 :visit-id "03" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2866 :al-overhead-at-end 46 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3200 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "03" :orbit-number 2 :pcs-time 302 :si-vis-utilization 2896 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3200 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "03" :orbit-number 3 :pcs-time 302 :si-vis-utilization 2896 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3200 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "03" :orbit-number 4 :pcs-time 302 :si-vis-utilization 2896 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3200 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "03" :orbit-number 5 :pcs-time 302 :si-vis-utilization 2896 :al-overhead-at-end 0 :internal-dur-at-end 1015 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3200 :pcs-gap 0 ) true 5 0 The scheduling data was generated by CASM 27.2. CASM was run in Phase II mode. 1579703195758 /Users/tsohn/Dropbox/HST Phase II/15658-M31+M32/OP-cache/15658-RepeatV52-v04.xml This is the visit for imaging the M31-HALO21 field with ACS/WFC as primary and WFC3/UVIS as parallel. We will image both fields only using the F606W filters. Five orbits are required to complete this visit. Each orbit consists of two long exposures. We added Orient Ranges requirements to align our images with the previous epoch images obtained through program 10816. We implemented a custom-designed dither pattern via the POS-TARG requirement. 1567516201000 231.9199999999999 (Tic-Visit :proposal-id 15658 :visit-id "04" :proposal-version -1 :trans-version "20190514" :date "22-Jan-2020 09:26:34.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 5 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 5729680 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15658 :visit-id "04" :obset-id "04" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15658 :visit-id "04" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2904 :al-overhead-at-end 27 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "04" :orbit-number 2 :pcs-time 302 :si-vis-utilization 2896 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "04" :orbit-number 3 :pcs-time 302 :si-vis-utilization 2896 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "04" :orbit-number 4 :pcs-time 302 :si-vis-utilization 2896 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "04" :orbit-number 5 :pcs-time 302 :si-vis-utilization 2896 :al-overhead-at-end 0 :internal-dur-at-end 1015 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) true 5 0 The scheduling data was generated by CASM 27.2. CASM was run in Phase II mode. 1579703199007 /Users/tsohn/Dropbox/HST Phase II/15658-M31+M32/OP-cache/15658-RepeatV52-v05.xml This is the visit for imaging the M31-HALO35 field with ACS/WFC as primary and WFC3/UVIS as parallel. We will image both fields only using the F606W filters. Five orbits are required to complete this visit. Each orbit consists of two long exposures. We added Orient Ranges requirements to align our images with the previous epoch images obtained through program 10816. We implemented a custom-designed dither pattern via the POS-TARG requirement. 1570455802000 163.95999999999998 (Tic-Visit :proposal-id 15658 :visit-id "05" :proposal-version -1 :trans-version "20190514" :date "22-Jan-2020 09:26:38.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 5 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 5729680 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15658 :visit-id "05" :obset-id "05" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15658 :visit-id "05" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2866 :al-overhead-at-end 46 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3200 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "05" :orbit-number 2 :pcs-time 302 :si-vis-utilization 2896 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3200 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "05" :orbit-number 3 :pcs-time 302 :si-vis-utilization 2896 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3200 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "05" :orbit-number 4 :pcs-time 302 :si-vis-utilization 2896 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3200 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "05" :orbit-number 5 :pcs-time 302 :si-vis-utilization 2896 :al-overhead-at-end 0 :internal-dur-at-end 1015 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3200 :pcs-gap 0 ) true 5 0 The scheduling data was generated by CASM 27.2. CASM was run in Phase II mode. 1579703202174 /Users/tsohn/Dropbox/HST Phase II/15658-M31+M32/OP-cache/15658-RepeatV52-v06.xml This is the visit for imaging the M32 field with ACS/WFC as primary and WFC3/UVIS as parallel. We will image both fields only using the F606W filters. Five orbits are required to complete this visit. Each orbit consists of two long exposures. We added Orient Ranges requirements to align our images with the previous epoch images obtained through program 9392. We implemented a custom-designed dither pattern via the POS-TARG requirement. We added Timing Requirement 1574768908000 90.05999999999989 (Tic-Visit :proposal-id 15658 :visit-id "06" :proposal-version -1 :trans-version "20190514" :date "22-Jan-2020 09:26:41.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 5 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 5729680 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15658 :visit-id "06" :obset-id "06" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15658 :visit-id "06" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2904 :al-overhead-at-end 27 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "06" :orbit-number 2 :pcs-time 302 :si-vis-utilization 2896 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "06" :orbit-number 3 :pcs-time 302 :si-vis-utilization 2896 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "06" :orbit-number 4 :pcs-time 302 :si-vis-utilization 2896 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "06" :orbit-number 5 :pcs-time 302 :si-vis-utilization 2896 :al-overhead-at-end 0 :internal-dur-at-end 1015 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) true 5 0 The scheduling data was generated by CASM 27.2. CASM was run in Phase II mode. 1579703205328 /Users/tsohn/Dropbox/HST Phase II/15658-M31+M32/OP-cache/15658-RepeatV52-v07.xml This is the visit for imaging the M32-CONTROL field with ACS/WFC as primary and WFC3/UVIS as parallel. We will image both fields only using the F606W filters. Five orbits are required to complete this visit. Each orbit consists of two long exposures. We added Orient Ranges requirements to align our images with the previous epoch images obtained through program 9392. We implemented a custom-designed dither pattern via the POS-TARG requirement. 1576559411000 87.45999999999998 (Tic-Visit :proposal-id 15658 :visit-id "07" :proposal-version -1 :trans-version "20190514" :date "22-Jan-2020 09:26:44.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 5 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 5729680 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15658 :visit-id "07" :obset-id "07" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15658 :visit-id "07" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2904 :al-overhead-at-end 27 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "07" :orbit-number 2 :pcs-time 302 :si-vis-utilization 2896 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "07" :orbit-number 3 :pcs-time 302 :si-vis-utilization 2896 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "07" :orbit-number 4 :pcs-time 302 :si-vis-utilization 2896 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "07" :orbit-number 5 :pcs-time 302 :si-vis-utilization 2896 :al-overhead-at-end 0 :internal-dur-at-end 1015 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) true 5 0 The scheduling data was generated by CASM 27.2. CASM was run in Phase II mode. 1579703208518 /Users/tsohn/Dropbox/HST Phase II/15658-M31+M32/OP-cache/15658-RepeatV52-v56.xml This is the visit for imaging the M32 field with ACS/WFC as primary and WFC3/UVIS as parallel. We will image both fields only using the F606W filters. Five orbits are required to complete this visit. Each orbit consists of two long exposures. We added Orient Ranges requirements to align our images with the previous epoch images obtained through program 9392. We implemented a custom-designed dither pattern via the POS-TARG requirement. We added Timing Requirement 1577686670000 90.05999999999989 (Tic-Visit :proposal-id 15658 :visit-id "56" :proposal-version -1 :trans-version "20190514" :date "22-Jan-2020 09:26:47.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 5 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 5729680 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15658 :visit-id "56" :obset-id "56" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15658 :visit-id "56" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2904 :al-overhead-at-end 27 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "56" :orbit-number 2 :pcs-time 302 :si-vis-utilization 2896 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "56" :orbit-number 3 :pcs-time 302 :si-vis-utilization 2896 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "56" :orbit-number 4 :pcs-time 302 :si-vis-utilization 2896 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "56" :orbit-number 5 :pcs-time 302 :si-vis-utilization 2896 :al-overhead-at-end 0 :internal-dur-at-end 1015 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) true 5 0 The scheduling data was generated by CASM 27.2. CASM was run in Phase II mode. 1579703177578 /Users/tsohn/Dropbox/HST Phase II/15658-M31+M32/OP-cache/15658-RepeatV52-v52.xml This is the visit for imaging the M31-OUTERDISK field with ACS/WFC as primary and WFC3/UVIS as parallel. We will image both fields only using the F606W filters. Five orbits are required to complete this visit. Each orbit consists of two long exposures. To maximize the time baseline w.r.t. the earlier epochs, we added Timing Requirements of "After 01-FEB-2019" for this visit. We have also added Orient Ranges requirements to align our images with the previous epoch images. We implemented a custom-designed dither pattern via the POS-TARG requirement. 1578979052000 67.09 (Tic-Visit :proposal-id 15658 :visit-id "52" :proposal-version -1 :trans-version "20190514" :date "22-Jan-2020 09:26:16.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 4 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 4583744 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15658 :visit-id "52" :obset-id "52" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15658 :visit-id "52" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2874 :al-overhead-at-end 42 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "52" :orbit-number 2 :pcs-time 302 :si-vis-utilization 2866 :al-overhead-at-end 5 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "52" :orbit-number 3 :pcs-time 302 :si-vis-utilization 2866 :al-overhead-at-end 5 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "52" :orbit-number 4 :pcs-time 302 :si-vis-utilization 2866 :al-overhead-at-end 5 :internal-dur-at-end 1015 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) true 4 0 The scheduling data was generated by CASM 27.2. CASM was run in Phase II mode. 1579705145368 /Users/tsohn/Dropbox/HST Phase II/15658-M31+M32/OP-cache/15658-RepeatV52-v62.xml This is the visit for imaging the M31-OUTERDISK field with ACS/WFC as primary and WFC3/UVIS as parallel. We will image both fields only using the F606W filters. Five orbits are required to complete this visit. Each orbit consists of two long exposures. To maximize the time baseline w.r.t. the earlier epochs, we added Timing Requirements of "After 01-FEB-2019" for this visit. We have also added Orient Ranges requirements to align our images with the previous epoch images. We implemented a custom-designed dither pattern via the POS-TARG requirement. (Tic-Visit :proposal-id 15658 :visit-id "62" :proposal-version -1 :trans-version "20190514" :date "22-Jan-2020 09:59:05.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 2 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 2291872 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15658 :visit-id "62" :obset-id "62" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15658 :visit-id "62" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2874 :al-overhead-at-end 42 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) (Tic-Orbit :proposal-id 15658 :visit-id "62" :orbit-number 2 :pcs-time 302 :si-vis-utilization 2866 :al-overhead-at-end 5 :internal-dur-at-end 1015 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) true 2 0