0 Assigned ID: 4464 ----- Attempting Submission 1 (Wed May 24 17:59:50 GMT 2023) ----- ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN This submission for GO17844 is to update exposure times for all remaining visits (x8, 39 and 49) to eliminate visibility overruns. For visits 39 and 49, which are repeats of two failed visits, we have entered orients and date ranges which will maximize field overlap with previous visits to maximize science returns. -1868508159 ----- Attempting Submission 1 (Thu Sep 14 19:06:51 GMT 2023) ----- HST Phase II Proposal 17510 successfully submitted. Receipt: # 17510-1 ----- Attempting Submission 2 (Wed Oct 04 04:22:39 GMT 2023) ----- ----- Attempting Submission 3 (Mon Nov 13 17:18:17 GMT 2023) ----- ----- Attempting Submission 4 (Thu Jun 27 05:07:42 GMT 2024) ----- ----- Attempting Submission 5 (Fri Aug 16 16:11:29 GMT 2024) ----- HST Phase II Proposal 17844 successfully submitted. Receipt: # 17844-5 ----- Attempting Submission 6 (Tue Nov 12 19:16:35 GMT 2024) ----- ----- Attempting Submission 7 (Mon Nov 18 05:46:54 GMT 2024) ----- ----- Attempting Submission 8 (Fri Jan 16 01:17:57 GMT 2026) ----- The visibility overruns are all for completed visits, so are no longer applicable. The Origin of the Virgo Intergalactic Population The intracluster light (ICL) is a major component of galaxy clusters, and contains a record of the galaxies destroyed during hierarchical assembly of the cluster. This proposal addresses three issues critical to understanding the origin and evolution of intergalactic populations, using resolved star WFC3/IR photometry of intergalactic fields in the Virgo cluster. Foremost, we will probe the age distribution of Virgo's intracluster stars via the period distribution of bright AGB variable stars, a tool successfully deployed to study stellar populations in elliptical galaxies. By spreading the observations over 8 epochs and two HST cycles (4+4), we can determine periods and reveal the age spread of the intracluster stars, opening a new window on their origin and evolution. Second, IR color magnitude diagrams from the stacked imaging will establish the metallicity distribution function of the ICL, constraining the luminosity function and abundances of the galaxies that have been dismembered in assembling the intracluster population. Third, by observing five fields around the core of the cluster, we will trace how spatially well-mixed the ICL population is and how its age and metallicity vary across diverse environments, and thus measure its evolutionary state. While JWST will extend photometric work on the Virgo ICL, period determination of LPVs with JWST is very difficult because of its restricted visibility window in Virgo. It is therefore critical to begin these multi-cycle observations while time permits before the end of HST's lifetime. WFC3/IR will image five intergalactic fields in F110W and F160W. The observations will be spread over 8 one-orbit visits and two HST cycles (four visits in each cycle) to detect and phase variable stars with periods up to at least 750d. The data will be taken with SPARS50, dividing each orbit into 3 F110W and 3 F160W exposures. These will be dithered in each visit to mitigate the effect of the IR blobs, and then with tight dithers between each visit for bad pixels. The visits will occur in two orients, ~300deg and ~120deg to achieve optimum spacing of the epochs for phasing. Using just two orients 180deg apart preserves the field coverage between epochs, as well as maximizes the depth of the parallel fields. We request SAA-free orbits because of the sensitivity of the IR detectors to SAA passage. We realize this is a limited resource, but since one goal is to make as deep a CMD as possible, and having reliable photometry at each epoch is necessary for the detection and phasing of the variables, SAA-free time ensures the success of the project. Our single orbit visits facilitate this scheduling. During the WFC3/IR observations, ACS/WFC will be in the intergalactic reaches of Virgo and can contribute further valuable data to the study of the ICL and Virgo population. We will obtain F606W and F814W images, to maximize depth and be compatible with other deep imaging done with HST in Virgo. The images will be 1 F606W exposure and 2 F814W in each epoch for the parallels Dr. Michael Gregg has extensive expertise in planning and executing large HST programs, in reducing WFC3 and ACS data using drizzling, and in the PSF photometry analysis of the resulting images. He has a background in galaxy clusters, tidal disruption of galaxies, globular clusters in early type galaxies, ultra-compact dwarf galaxies, and resolved star photometry of extragalactic red giant branch populations. He will take main responsibility for planning the Phase II proposal and the drizzling reductions, plus collaborate in all subsequent aspects of the photometry and interpretation of the color magnitude diagrams and period distribution functions. Dr. Chris Mihos is the PI of the Burrell Schmidt deep imaging survey of Virgo intracluster light, and an expert on both observations and simulations of diffuse light in galaxy groups and clusters. He also is PI on two recent HST projects studying the resolved stellar populations in M101 and galaxies in Virgo. Dr. Dante Minniti has a background in stellar astrophysics, stellar populations, star clusters, and variable stars. His expertise is in spectroscopy and multivavelength photometry, and he is currently PI of the VISTA survey of the Galactic Plane, which includes discovery and phasing of variable stars. Dr. Marina Rejkuba is an expert in extragalactic stellar populations, especially early type galaxies. Of particular relevance here, she has led a major programs with the VLT and HST to study the red and asymptotic giant branch populations around NGC5128, including phasing of the long period variables over multi-year epochs of observations. Dr. Doug Welch is an expert in variable star identification and period determination. Dr. Michael West is an expert on galaxy formation and evolution, clusters of galaxies, and the environmental impact of the large-scale structure of the universe on galaxies and galaxy clusters. All of the Co-I's will contribute significantly to most components of this research, especially the analysis and interpretation of the resulting color magnitude diagrams and period distribution functions, and the implications for theory of cluster formation. Large Scale Structure of the Universe Stellar Populations and the Interstellar Medium 0 false false false false false false false true PRIMARY 0.0 0.0 false SUPPORTED EXT-STAR K III-I LONG PERIOD VARIABLE M III-I J2000 J2000 EXT-STAR K III-I LONG PERIOD VARIABLE M III-I J2000 J2000 EXT-STAR K III-I LONG PERIOD VARIABLE M III-I J2000 J2000 EXT-STAR K III-I LONG PERIOD VARIABLE M III-I J2000 J2000 EXT-STAR K III-I LONG PERIOD VARIABLE M III-I J2000 J2000 WFC3/IR Imaging No No F160W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F160W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F160W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F160W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F160W WFC3/IR Imaging No No F110W ACS/WFC Imaging No No F475W ACS/WFC Imaging No No F814W ACS/WFC Imaging No No F475W ACS/WFC Imaging No No F814W ACS/WFC Imaging No No F475W ACS/WFC Imaging No No F814W ACS/WFC Imaging No No F475W ACS/WFC Imaging No No F814W ACS/WFC Imaging No No F475W ACS/WFC Imaging No No F814W Hst Same orient constraint links visits (15 17 18) The scheduling data was generated by CASM 34.0. CASM was run in Phase II mode. 1739945667000 290.0 (Tic-Visit :proposal-id 17844 :visit-id "15" :proposal-version -1 :trans-version "20250929" :date "15-Jan-2026 15:34:55.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1879792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17844 :visit-id "15" :obset-id "15" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17844 :visit-id "15" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2632 :al-overhead-at-end 0 :internal-dur-at-end 942 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2974 :pcs-gap 0 ) true 1 1 The scheduling data was generated by CASM 34.0. CASM was run in Phase II mode. 1748317322000 144.0 (Tic-Visit :proposal-id 17844 :visit-id "16" :proposal-version -1 :trans-version "20250929" :date "15-Jan-2026 15:34:56.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1879792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17844 :visit-id "16" :obset-id "16" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17844 :visit-id "16" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2634 :al-overhead-at-end 0 :internal-dur-at-end 961 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2974 :pcs-gap 0 ) true 1 1 Hst Same orient constraint links visits (15 17 18) The scheduling data was generated by CASM 34.0. CASM was run in Phase II mode. 1766608170000 290.0 (Tic-Visit :proposal-id 17844 :visit-id "17" :proposal-version -1 :trans-version "20250929" :date "15-Jan-2026 15:34:58.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1879792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17844 :visit-id "17" :obset-id "17" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17844 :visit-id "17" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2632 :al-overhead-at-end 0 :internal-dur-at-end 942 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2974 :pcs-gap 0 ) true 1 1 Hst Same orient constraint links visits (15 17 18) The scheduling data was generated by CASM 34.0. CASM was run in Phase II mode. 1771566615000 290.0 (Tic-Visit :proposal-id 17844 :visit-id "18" :proposal-version -1 :trans-version "20250929" :date "15-Jan-2026 15:40:17.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1862384 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17844 :visit-id "18" :obset-id "18" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17844 :visit-id "18" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2591 :al-overhead-at-end 0 :internal-dur-at-end 923 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2974 :pcs-gap 0 ) true 1 0 Hst Same orient constraint links visits (25 27 28) The scheduling data was generated by CASM 34.0. CASM was run in Phase II mode. 1740189416000 290.0 (Tic-Visit :proposal-id 17844 :visit-id "25" :proposal-version -1 :trans-version "20250929" :date "15-Jan-2026 15:35:01.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1879792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17844 :visit-id "25" :obset-id "25" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17844 :visit-id "25" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2632 :al-overhead-at-end 0 :internal-dur-at-end 942 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2974 :pcs-gap 0 ) true 1 1 The scheduling data was generated by CASM 34.0. CASM was run in Phase II mode. 1748141949000 144.0 (Tic-Visit :proposal-id 17844 :visit-id "26" :proposal-version -1 :trans-version "20250929" :date "15-Jan-2026 15:35:03.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1879792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17844 :visit-id "26" :obset-id "26" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17844 :visit-id "26" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2634 :al-overhead-at-end 0 :internal-dur-at-end 942 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2974 :pcs-gap 0 ) true 1 1 Hst Same orient constraint links visits (25 27 28) The scheduling data was generated by CASM 34.0. CASM was run in Phase II mode. 1766681615000 290.0 (Tic-Visit :proposal-id 17844 :visit-id "27" :proposal-version -1 :trans-version "20250929" :date "15-Jan-2026 15:35:04.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1879792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17844 :visit-id "27" :obset-id "27" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17844 :visit-id "27" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2632 :al-overhead-at-end 0 :internal-dur-at-end 942 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2974 :pcs-gap 0 ) true 1 1 Hst Same orient constraint links visits (25 27 28) The scheduling data was generated by CASM 34.0. CASM was run in Phase II mode. 1771572276000 290.0 (Tic-Visit :proposal-id 17844 :visit-id "28" :proposal-version -1 :trans-version "20250929" :date "15-Jan-2026 15:37:41.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1862384 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17844 :visit-id "28" :obset-id "28" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17844 :visit-id "28" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2591 :al-overhead-at-end 0 :internal-dur-at-end 923 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2974 :pcs-gap 0 ) true 1 0 Hst Same orient constraint links visits (35 37 38) The scheduling data was generated by CASM 34.0. CASM was run in Phase II mode. 1740132723000 290.0 (Tic-Visit :proposal-id 17844 :visit-id "35" :proposal-version -1 :trans-version "20250929" :date "15-Jan-2026 15:30:45.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1879792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17844 :visit-id "35" :obset-id "35" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17844 :visit-id "35" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2632 :al-overhead-at-end 0 :internal-dur-at-end 942 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2974 :pcs-gap 0 ) true 1 1 The scheduling data was generated by CASM 34.0. CASM was run in Phase II mode. 1748322994000 144.0 (Tic-Visit :proposal-id 17844 :visit-id "36" :proposal-version -1 :trans-version "20250929" :date "15-Jan-2026 15:35:07.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1879792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17844 :visit-id "36" :obset-id "36" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17844 :visit-id "36" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2634 :al-overhead-at-end 0 :internal-dur-at-end 942 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2974 :pcs-gap 0 ) true 1 1 Hst Same orient constraint links visits (35 37 38) The scheduling data was generated by CASM 34.0. CASM was run in Phase II mode. 1766670313000 290.0 (Tic-Visit :proposal-id 17844 :visit-id "37" :proposal-version -1 :trans-version "20250929" :date "15-Jan-2026 15:35:09.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1879792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17844 :visit-id "37" :obset-id "37" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17844 :visit-id "37" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2632 :al-overhead-at-end 0 :internal-dur-at-end 942 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2974 :pcs-gap 0 ) true 1 1 The scheduling data was generated by CASM 34.0. CASM was run in Phase II mode. 1772345638000 285.0 (Tic-Visit :proposal-id 17844 :visit-id "39" :proposal-version -1 :trans-version "20250929" :date "15-Jan-2026 17:08:16.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1862384 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17844 :visit-id "39" :obset-id "39" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17844 :visit-id "39" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2592 :al-overhead-at-end 0 :internal-dur-at-end 923 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2974 :pcs-gap 0 ) true 1 0 Hst Same orient constraint links visits (35 37 38) The scheduling data was generated by CASM 34.0. CASM was run in Phase II mode. 1771577916000 290.0 (Tic-Visit :proposal-id 17844 :visit-id "38" :proposal-version -1 :trans-version "20250929" :date "15-Jan-2026 15:34:23.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1862384 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17844 :visit-id "38" :obset-id "38" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17844 :visit-id "38" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2591 :al-overhead-at-end 0 :internal-dur-at-end 923 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2974 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 34.0. CASM was run in Phase II mode. 1748085316000 144.0 (Tic-Visit :proposal-id 17844 :visit-id "45" :proposal-version -1 :trans-version "20250929" :date "15-Jan-2026 15:35:12.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1879792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17844 :visit-id "45" :obset-id "45" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17844 :visit-id "45" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2632 :al-overhead-at-end 0 :internal-dur-at-end 942 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2974 :pcs-gap 0 ) true 1 1 The scheduling data was generated by CASM 34.0. CASM was run in Phase II mode. 1766664640000 303.0 (Tic-Visit :proposal-id 17844 :visit-id "46" :proposal-version -1 :trans-version "20250929" :date "15-Jan-2026 15:35:14.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1879792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17844 :visit-id "46" :obset-id "46" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17844 :visit-id "46" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2634 :al-overhead-at-end 0 :internal-dur-at-end 942 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2974 :pcs-gap 0 ) true 1 1 The scheduling data was generated by CASM 34.0. CASM was run in Phase II mode. 1772351342000 285.0 (Tic-Visit :proposal-id 17844 :visit-id "49" :proposal-version -1 :trans-version "20250929" :date "15-Jan-2026 17:04:11.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1862384 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17844 :visit-id "49" :obset-id "49" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17844 :visit-id "49" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2588 :al-overhead-at-end 0 :internal-dur-at-end 923 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2974 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 34.0. CASM was run in Phase II mode. 1768291371000 303.0 (Tic-Visit :proposal-id 17844 :visit-id "47" :proposal-version -1 :trans-version "20250929" :date "15-Jan-2026 15:35:17.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1879792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17844 :visit-id "47" :obset-id "47" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17844 :visit-id "47" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2632 :al-overhead-at-end 0 :internal-dur-at-end 942 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2974 :pcs-gap 0 ) true 1 1 The scheduling data was generated by CASM 34.0. CASM was run in Phase II mode. 1771335243000 293.0 (Tic-Visit :proposal-id 17844 :visit-id "48" :proposal-version -1 :trans-version "20250929" :date "15-Jan-2026 15:36:34.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1862384 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17844 :visit-id "48" :obset-id "48" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17844 :visit-id "48" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2591 :al-overhead-at-end 0 :internal-dur-at-end 923 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2974 :pcs-gap 0 ) true 1 0 (Tic-Visit :proposal-id 17844 :visit-id "48" :proposal-version -1 :trans-version "20250929" :date "15-Jan-2026 15:36:34.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1862384 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17844 :visit-id "48" :obset-id "48" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17844 :visit-id "48" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2591 :al-overhead-at-end 0 :internal-dur-at-end 923 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2974 :pcs-gap 0 ) false 1 0 Hst Same orient constraint links visits (55 57 58) The scheduling data was generated by CASM 34.0. CASM was run in Phase II mode. 1740608816000 290.0 (Tic-Visit :proposal-id 17844 :visit-id "55" :proposal-version -1 :trans-version "20250929" :date "15-Jan-2026 15:35:19.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1879792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17844 :visit-id "55" :obset-id "55" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17844 :visit-id "55" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2632 :al-overhead-at-end 0 :internal-dur-at-end 942 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2974 :pcs-gap 0 ) true 1 1 The scheduling data was generated by CASM 34.0. CASM was run in Phase II mode. 1748311658000 144.0 (Tic-Visit :proposal-id 17844 :visit-id "56" :proposal-version -1 :trans-version "20250929" :date "15-Jan-2026 15:35:21.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1879792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17844 :visit-id "56" :obset-id "56" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17844 :visit-id "56" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2634 :al-overhead-at-end 0 :internal-dur-at-end 942 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2974 :pcs-gap 0 ) true 1 1 Hst Same orient constraint links visits (55 57 58) The scheduling data was generated by CASM 34.0. CASM was run in Phase II mode. 1766675946000 290.0 (Tic-Visit :proposal-id 17844 :visit-id "57" :proposal-version -1 :trans-version "20250929" :date "15-Jan-2026 15:35:22.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1879792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17844 :visit-id "57" :obset-id "57" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17844 :visit-id "57" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2632 :al-overhead-at-end 0 :internal-dur-at-end 942 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2974 :pcs-gap 0 ) true 1 1 Hst Same orient constraint links visits (55 57 58) The scheduling data was generated by CASM 34.0. CASM was run in Phase II mode. 1772277886000 290.0 (Tic-Visit :proposal-id 17844 :visit-id "58" :proposal-version -1 :trans-version "20250929" :date "15-Jan-2026 15:28:39.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 1862384 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17844 :visit-id "58" :obset-id "58" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17844 :visit-id "58" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2591 :al-overhead-at-end 0 :internal-dur-at-end 923 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2974 :pcs-gap 0 ) true 1 0