0 Assigned ID: 5680 ----- Attempting Submission 1 (Tue Mar 26 21:33:01 GMT 2024) ----- HST Phase I Proposal 5680 successfully submitted. Receipt: # 5680-1 ----- Attempting Submission 2 (Tue Mar 26 23:52:04 GMT 2024) ----- I changed the ORIENTs so that they lie in the range 265-292 which allows FGS2 to be turned off, according to the instructions received from Blair. I did not specify and guiding requirements in the APT. I adjusted the Schedulability to 100 percent for all orbits. -2067112296 ----- Attempting Submission 2 (Fri Aug 29 12:52:03 GMT 2025) ----- Direct imaging of a catastrophic exosolar planetesimal collision in real time with HST/STIS A fundamental process in the formation and evolution of planetary systems involves constructive and destructive collisions. These are rarely observed in real time except in the solar system. Otherwise, collisional processes are invoked theoretically and numerically to explain observations. For exosolar planetary systems, dusty debris disks are the outcome of destructive collisional processes among planetesimals. In the Fomalhaut system, the HST-detected source known as Fomalhaut b has been interpreted as a direct imaging observation of a fresh dust cloud produced by a catastrophic planetesimal collision in 2004. Various studies examined its dimming over time, changes in morphology, and radial acceleration. Here we show observations of Fomalhaut made with HST/STIS in 2023 that reveal a new source similar in brightness to Fomalhaut b appearing along the inner edge of the dust belt at 133 au. If the catastrophic collision hypothesis is correct, Fomalhaut "b2" is predicted to expand in size due to radiation pressure and Keplerian shear, become fainter, and follow a trajectory that initially appears Keplerian and evolves to radial. We propose a multi-cycle HST/STIS campaign to measure changes in Fomalhaut b2's position, brightness, and morphology over three years, as well as to monitor for any new collisions. Because the phenomenon is extremely faint in the optical, HST is the only observatory capable of tracking the evolution of a catastrophic planetesimal collision in real time. The findings will provide exceptionally rare empirical data for distinguishing between different theories on the dynamics of Fomalhaut's planetary system and collisional processes in general. The primary goal is to detect the faint point source Fomalhaut b2 located at PA=311 degrees at 13" separation. The observations are similar to GO-17139. Within each orbit (one visit = one orbit), we aquire Fomalhaut behind WEDGEB2.5 for deep exposures (~25 seconds). Knowledge of previous Fomalhaut STIS data allows us to orient the telescope such that Fomalhaut b2 will land in an azimuthal region that is relatively clean from residual scattered light artifacts. Each of 18 orbits is scheduled at a different ORIENT in order to enable data processing and PSF subtraction using angular differential imaging. Effective PSF subtraction requires that the observations are executed contiguously without interruption. We achieve this by breaking up the 18 orbits (Visits) into three Sequences of six orbits (Visits) per Sequence. If this causes a scheduling problem, we can reduce the Sequences so that they include only five orbits or four orbits. However, all 18 orbits should be executed as close in time as possible. Sequences are used instead of GROUP WITHINs because we want adjacent orbits to have a large separation in angle. Jason Wang, Michael Fitzgerald, Robert De Rosa, and Max Millar-Blanchaer are experts in high contrast imaging observations, data reduction techniques, and precision astrometry. Paul Kalas specializes in the science of debris disks and exoplanets, with expertise in high-contrast imaging methods (observations, data reduction, and analysis) using all of HST's past and present imaging cameras. He has extensive experience designing large and long-term science programs, managing teams spread over multiple institutions, and mentoring graduate students and postdocs. Mark Wyatt and Grant Kennedy both have extensive experience analyzing and interpreting debris disk data from the optical (e.g., HST) to the millimeter (e.g., ALMA). They are recognized as leaders in the theoretical understanding of debris disk and circumplanetary satellite physics and will lead the theory effort of our science program. Exoplanets and Exoplanet Formation 6 false false false false false false SUPPORTED STAR A4-A9 V-IV CIRCUMSTELLAR MATTER DISK EXTRA-SOLAR PLANET EXTRA-SOLAR PLANETARY SYSTEM This object was generated by the targetselector and retrieved from the SIMBAD database. ALFA-PSA J2000 J2000 STIS/CCD Imaging Yes No WEDGEA2.5 Timing link suitability includes constraints ([Sequence (01 02 03 04 05 06) within 0.4 days]) The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /Users/kalas/Paul/hst_phase2/17766_Fomalhautb2/OP-cache/Untitled-v01.xml (Tic-Visit :proposal-id 17766 :visit-id "01" :proposal-version -1 :trans-version "20250624" :date "29-Aug-2025 15:06:04.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 442096 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17766 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17766 :visit-id "01" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2468 :al-overhead-at-end 0 :internal-dur-at-end 360 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2864 :pcs-gap 0 ) true 1 0 Timing link suitability includes constraints ([Sequence (01 02 03 04 05 06) within 0.4 days]) The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /Users/kalas/Paul/hst_phase2/17766_Fomalhautb2/OP-cache/Untitled-v02.xml (Tic-Visit :proposal-id 17766 :visit-id "02" :proposal-version -1 :trans-version "20250624" :date "29-Aug-2025 15:07:57.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 442096 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17766 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17766 :visit-id "02" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2468 :al-overhead-at-end 0 :internal-dur-at-end 360 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2864 :pcs-gap 0 ) true 1 0 Timing link suitability includes constraints ([Sequence (01 02 03 04 05 06) within 0.4 days]) The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /Users/kalas/Paul/hst_phase2/17766_Fomalhautb2/OP-cache/Untitled-v03.xml (Tic-Visit :proposal-id 17766 :visit-id "03" :proposal-version -1 :trans-version "20250624" :date "29-Aug-2025 15:13:59.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 442096 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17766 :visit-id "03" :obset-id "03" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17766 :visit-id "03" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2468 :al-overhead-at-end 0 :internal-dur-at-end 360 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2864 :pcs-gap 0 ) true 1 0 Timing link suitability includes constraints ([Sequence (01 02 03 04 05 06) within 0.4 days]) The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /Users/kalas/Paul/hst_phase2/17766_Fomalhautb2/OP-cache/Untitled-v04.xml (Tic-Visit :proposal-id 17766 :visit-id "04" :proposal-version -1 :trans-version "20250624" :date "29-Aug-2025 15:22:14.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 442096 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17766 :visit-id "04" :obset-id "04" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17766 :visit-id "04" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2468 :al-overhead-at-end 0 :internal-dur-at-end 360 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2864 :pcs-gap 0 ) true 1 0 Timing link suitability includes constraints ([Sequence (01 02 03 04 05 06) within 0.4 days]) The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /Users/kalas/Paul/hst_phase2/17766_Fomalhautb2/OP-cache/Untitled-v05.xml (Tic-Visit :proposal-id 17766 :visit-id "05" :proposal-version -1 :trans-version "20250624" :date "29-Aug-2025 15:32:40.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 442096 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17766 :visit-id "05" :obset-id "05" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17766 :visit-id "05" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2468 :al-overhead-at-end 0 :internal-dur-at-end 360 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2864 :pcs-gap 0 ) true 1 0 Timing link suitability includes constraints ([Sequence (01 02 03 04 05 06) within 0.4 days]) The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /Users/kalas/Paul/hst_phase2/17766_Fomalhautb2/OP-cache/Untitled-v06.xml (Tic-Visit :proposal-id 17766 :visit-id "06" :proposal-version -1 :trans-version "20250624" :date "29-Aug-2025 15:33:54.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 442096 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17766 :visit-id "06" :obset-id "06" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17766 :visit-id "06" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2450 :al-overhead-at-end 0 :internal-dur-at-end 419 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2864 :pcs-gap 0 ) true 1 0 Timing link suitability includes constraints ([Sequence (07 08 09 10 11 12) within 0.4 days]) The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/xt/qjmnp0112nl6r_37xv8_kg1c0000gn/T/OPVisit6379741726271621575.xml (Tic-Visit :proposal-id 17766 :visit-id "07" :proposal-version -1 :trans-version "20250624" :date "29-Aug-2025 15:47:43.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 442096 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17766 :visit-id "07" :obset-id "07" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17766 :visit-id "07" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2468 :al-overhead-at-end 0 :internal-dur-at-end 360 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2864 :pcs-gap 0 ) true 1 0 Timing link suitability includes constraints ([Sequence (07 08 09 10 11 12) within 0.4 days]) The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/xt/qjmnp0112nl6r_37xv8_kg1c0000gn/T/OPVisit6804061309575240684.xml (Tic-Visit :proposal-id 17766 :visit-id "08" :proposal-version -1 :trans-version "20250624" :date "29-Aug-2025 15:47:45.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 442096 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17766 :visit-id "08" :obset-id "08" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17766 :visit-id "08" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2468 :al-overhead-at-end 0 :internal-dur-at-end 360 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2864 :pcs-gap 0 ) true 1 0 Timing link suitability includes constraints ([Sequence (07 08 09 10 11 12) within 0.4 days]) The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/xt/qjmnp0112nl6r_37xv8_kg1c0000gn/T/OPVisit8978433223954869138.xml (Tic-Visit :proposal-id 17766 :visit-id "09" :proposal-version -1 :trans-version "20250624" :date "29-Aug-2025 15:47:46.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 442096 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17766 :visit-id "09" :obset-id "09" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17766 :visit-id "09" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2468 :al-overhead-at-end 0 :internal-dur-at-end 360 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2864 :pcs-gap 0 ) true 1 0 Timing link suitability includes constraints ([Sequence (07 08 09 10 11 12) within 0.4 days]) The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/xt/qjmnp0112nl6r_37xv8_kg1c0000gn/T/OPVisit4984819296565066971.xml (Tic-Visit :proposal-id 17766 :visit-id "10" :proposal-version -1 :trans-version "20250624" :date "29-Aug-2025 15:47:48.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 442096 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17766 :visit-id "10" :obset-id "10" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17766 :visit-id "10" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2468 :al-overhead-at-end 0 :internal-dur-at-end 360 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2864 :pcs-gap 0 ) true 1 0 Timing link suitability includes constraints ([Sequence (07 08 09 10 11 12) within 0.4 days]) The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/xt/qjmnp0112nl6r_37xv8_kg1c0000gn/T/OPVisit5141651924736297406.xml (Tic-Visit :proposal-id 17766 :visit-id "11" :proposal-version -1 :trans-version "20250624" :date "29-Aug-2025 15:47:49.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 442096 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17766 :visit-id "11" :obset-id "11" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17766 :visit-id "11" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2468 :al-overhead-at-end 0 :internal-dur-at-end 360 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2864 :pcs-gap 0 ) true 1 0 Timing link suitability includes constraints ([Sequence (07 08 09 10 11 12) within 0.4 days]) The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/xt/qjmnp0112nl6r_37xv8_kg1c0000gn/T/OPVisit13930229031804156875.xml (Tic-Visit :proposal-id 17766 :visit-id "12" :proposal-version -1 :trans-version "20250624" :date "29-Aug-2025 15:47:51.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 442096 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17766 :visit-id "12" :obset-id "12" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17766 :visit-id "12" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2468 :al-overhead-at-end 0 :internal-dur-at-end 360 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2864 :pcs-gap 0 ) true 1 0 Timing link suitability includes constraints ([Sequence (13 14 15 16 17 18) within 0.4 days]) The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/xt/qjmnp0112nl6r_37xv8_kg1c0000gn/T/OPVisit14542955207417444346.xml (Tic-Visit :proposal-id 17766 :visit-id "13" :proposal-version -1 :trans-version "20250624" :date "29-Aug-2025 15:47:52.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 442096 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17766 :visit-id "13" :obset-id "13" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17766 :visit-id "13" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2468 :al-overhead-at-end 0 :internal-dur-at-end 360 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2864 :pcs-gap 0 ) true 1 0 Timing link suitability includes constraints ([Sequence (13 14 15 16 17 18) within 0.4 days]) The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/xt/qjmnp0112nl6r_37xv8_kg1c0000gn/T/OPVisit11756876411318350131.xml (Tic-Visit :proposal-id 17766 :visit-id "14" :proposal-version -1 :trans-version "20250624" :date "29-Aug-2025 15:47:53.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 442096 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17766 :visit-id "14" :obset-id "14" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17766 :visit-id "14" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2468 :al-overhead-at-end 0 :internal-dur-at-end 360 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2864 :pcs-gap 0 ) true 1 0 Timing link suitability includes constraints ([Sequence (13 14 15 16 17 18) within 0.4 days]) The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/xt/qjmnp0112nl6r_37xv8_kg1c0000gn/T/OPVisit15028811855648212684.xml (Tic-Visit :proposal-id 17766 :visit-id "15" :proposal-version -1 :trans-version "20250624" :date "29-Aug-2025 15:47:55.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 442096 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17766 :visit-id "15" :obset-id "15" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17766 :visit-id "15" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2468 :al-overhead-at-end 0 :internal-dur-at-end 360 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2864 :pcs-gap 0 ) true 1 0 Timing link suitability includes constraints ([Sequence (13 14 15 16 17 18) within 0.4 days]) The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/xt/qjmnp0112nl6r_37xv8_kg1c0000gn/T/OPVisit18077910641442529298.xml (Tic-Visit :proposal-id 17766 :visit-id "16" :proposal-version -1 :trans-version "20250624" :date "29-Aug-2025 15:47:56.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 442096 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17766 :visit-id "16" :obset-id "16" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17766 :visit-id "16" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2468 :al-overhead-at-end 0 :internal-dur-at-end 360 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2864 :pcs-gap 0 ) true 1 0 Timing link suitability includes constraints ([Sequence (13 14 15 16 17 18) within 0.4 days]) The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/xt/qjmnp0112nl6r_37xv8_kg1c0000gn/T/OPVisit3326728942682363546.xml (Tic-Visit :proposal-id 17766 :visit-id "17" :proposal-version -1 :trans-version "20250624" :date "29-Aug-2025 15:47:58.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 442096 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17766 :visit-id "17" :obset-id "17" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17766 :visit-id "17" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2468 :al-overhead-at-end 0 :internal-dur-at-end 360 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2864 :pcs-gap 0 ) true 1 0 Timing link suitability includes constraints ([Sequence (13 14 15 16 17 18) within 0.4 days]) The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/xt/qjmnp0112nl6r_37xv8_kg1c0000gn/T/OPVisit17820686280537665584.xml (Tic-Visit :proposal-id 17766 :visit-id "18" :proposal-version -1 :trans-version "20250624" :date "29-Aug-2025 15:47:59.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 442096 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17766 :visit-id "18" :obset-id "18" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17766 :visit-id "18" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2468 :al-overhead-at-end 0 :internal-dur-at-end 360 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2864 :pcs-gap 0 ) true 1 0