0 Assigned ID: 4644 ----- Attempting Submission 1 (Wed May 24 21:01:47 GMT 2023) ----- Lower exposure times and relaxed phase requirement for visit 53 to help scheduling 1739506484 ----- Attempting Submission 1 (Wed Sep 13 12:58:51 GMT 2023) ----- HST Phase II Proposal 17468 successfully submitted. Receipt: # 17468-1 ----- Attempting Submission 2 (Wed Sep 13 13:49:43 GMT 2023) ----- HST Phase II Proposal 17468 successfully submitted. Receipt: # 17468-2 ----- Attempting Submission 3 (Fri Nov 10 11:32:41 GMT 2023) ----- ----- Attempting Submission 4 (Wed Jan 10 20:04:38 GMT 2024) ----- HST Phase II Proposal 17468 successfully submitted. Receipt: # 17468-4 ----- Attempting Submission 5 (Wed Jan 10 23:22:01 GMT 2024) ----- ----- Attempting Submission 6 (Tue May 14 20:16:08 GMT 2024) ----- ----- Attempting Submission 7 (Tue Dec 03 20:01:50 GMT 2024) ----- ----- Attempting Submission 8 (Mon Dec 30 22:05:01 GMT 2024) ----- ----- Attempting Submission 9 (Fri Jan 03 16:41:32 GMT 2025) ----- ----- Attempting Submission 10 (Mon Jan 06 20:33:26 GMT 2025) ----- ----- Attempting Submission 11 (Tue Jan 07 20:10:03 GMT 2025) ----- ----- Attempting Submission 12 (Mon Feb 17 14:47:43 GMT 2025) ----- HST Phase II Proposal 17468 successfully submitted. Receipt: # 17468-12 ----- Attempting Submission 13 (Wed Feb 19 17:08:44 GMT 2025) ----- Space weather on GJ 436 b GJ 436 b produces a spectacular Lya transit with a depth in excess of 50%, an ingress well before, and an egress well beyond the optical transit. This transit, however, proves to be challenging to simulate despite numerous attempts and no consensus on the planetary wind properties has been reached. Yet, GJ 436 b is one of the few hot Neptunes where we can directly observe mass-loss through a planetary wind and study processes that may cause the hot-Neptune desert and the radius gap. The Lya transit, however, has been pieced together using data from eight(!) different epochs spread over six years. This would be acceptable if the system were stable in time, but we now know that the host star has a 7.4 year long activity cycle. This entails changes of more than a factor of two in the EUV regime compared to changes of only 1% in the optical, and the stellar wind is expected to change, too. EUV illumination and stellar wind control the Lya transit properties, and simulations already suggest that the discrepancies between predictions and data are largely caused by assuming a constant star. Therefore, GJ 436 b likely experiences severe space weather effects measurable in Lya. We propose to check this hypothesis by obtaining a complete Lya transit light curve of GJ 436 b within only 10% of its activity cycle. Seven visits strategically spread over GJ 436 b's Lya transit will allow us to measure, for the first time, how changes in the host star's activity affect the Lya transit, check if simulations include the dominant physical processes, and probe GJ 436 b's wind as a direct tracer of its photoevaporative mass-loss, crucial to understand the exoplanet population at large. This program aims at sampling the entire Lya transit of GJ 436b in a homogeneous and systematic manner. The transit lasts several times the optical transit and requires observations from as early as 8 hours before and 27 hours after mid-transit. We will sample this time period with seven identical visits, each consisting of three orbits. The timing of the visits is 1. visit, -8 ... -5 hours: establish pre-transit level -> start phase: 0.874 2. visit, -5 ... -2 hours: ingress -> start phase: 0.921 3. visit, -1.5 ... 1.5 hours: mid-transit -> start phase: 0.976 4. visit, 2 ... 5 hours: early egress -> start phase: 0.032 5. visit, 6 ... 9 hours: late egress -> start phase: 0.095 6. visit, 12 ... 15 hours: very late egress -> start phase: 0.189 7. visit, 24 ... 27 hours: establish post-transit level -> start phase: 0.378 Phase constraints: The planetary orbital period is about 2.644 days and we can allow for tolerance of 20 min in start time, which translates to an uncertainty of 0.005 in phase (-0.0025, +0.0025). Tieing the start phase to the first science exposure in the second orbit of each visit introduces a "home"-action so we fixed the phase constraint to the first exposure in the visit, i.e., ACQ. We calculate and offset of ca. 6359 sec from the start of target ACQ during the first orbit to the start of the first science exposure in the second orbit (label "Integration 2/3") as follows: start of ACQ in first orbit 443 sec into the orbit, start of MAMA integration in second orbit at 1077 sec into the orbit ("Integration 2/3"), orbit duration 5725 sec, i.e, the first relevant science exposure starts 5725+1077-443 = 6359 sec after first orbit ACQ start. Applying this phase shift, we assure that the "true" start of the science exposures matches the desired phases. Ephemerides are from Kokori et al. (2022), ApJS, 258, 40, i.e., the transit period is 2.643897510 days. Visit description: Each visit starts with ACQ and ACQ/PEAK followed by a first STIS G140M exposure using the 0.2" wide slit. The first orbit is primarily for relaxation of the telescope and the 0.2" slit assures capturing the full flux for comparison. The second and third orbits of each visit are essentially identical. They start with ACQ/PEAK for better flux accuracy and employ the 0.1" slit for better airglow reduction/separation. WAVECAL is performed during occultation after each orbit. Detector safety: Previous observations show a maximum local count rate of about 2e-2 cts/s/pixel, i.e., a factor of one hundred below the limit. Furthermore, GJ 436 is a very inactive M2.5 dwarf (Halpha in absorption, i.e., well below the canonical 1 AA border between active and inactive stars). Therefore, the maximum increase in Lya flux during a potential stellar flare is well below the screening limits. BOT reports no dangerous sources. The investigators listed on this proposal have successfully performed and published FUV observations of a variety of objects, including the target GJ 436. P. C. Schneider has extensive experience with FUV spectroscopy and activity of low-mass stars including several HST, Chandra, and XMM-Newton programs, e.g., PI of an ongoing program that studies the magnetic activity of GJ 436. He is also very experienced with exoplanet models and supervised several studies cited in this proposal. R. O. P. Loyd is an expert for FUV studies of exoplanets and their hosts. He lead the most recent activity study of GJ 436. S. Czesla is an expert for spectroscopy of planetary transits in many different wavelengths. He is also highly experienced with modelling planetary outflows and very experienced with the statistical aspects of planetary transits. Exoplanets and Exoplanet Formation Stellar Physics and Stellar Types 6 false true false false false false SUPPORTED STAR M V-IV NO This object was generated by the targetselector and retrieved from the SIMBAD database. GJ436 J2000 J2000 STIS/FUV-MAMA Spectroscopic No No G140M 1222 STIS/FUV-MAMA Spectroscopic No No G140M 1222 STIS/FUV-MAMA Spectroscopic No No G140M 1222 STIS/FUV-MAMA Spectroscopic No No G140M 1222 STIS/FUV-MAMA Spectroscopic No No G140M 1222 STIS/FUV-MAMA Spectroscopic No No G140M 1222 STIS/FUV-MAMA Spectroscopic No No G140M 1222 Timing link suitability includes constraints ([Group (01 02 03 04 05 06 07) Within 200.0 days] [Group (01 02 04 05 06 07 53) Within 200.0 days]) The scheduling data was generated by CASM 33.0. CASM was run in Phase II mode. /tmp/OPVisit1007916531583965448.xml 3 orbit visit to measure the pre-transit level 1731988020000 302.4727533423722 (Tic-Visit :proposal-id 17468 :visit-id "01" :proposal-version -1 :trans-version "20241216" :date "19-Feb-2025 18:04:43.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 3 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 889248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17468 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17468 :visit-id "01" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2652 :al-overhead-at-end 0 :internal-dur-at-end 283 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3032 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17468 :visit-id "01" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2652 :al-overhead-at-end 0 :internal-dur-at-end 303 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3032 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17468 :visit-id "01" :orbit-number 3 :pcs-time 380 :si-vis-utilization 2652 :al-overhead-at-end 0 :internal-dur-at-end 622 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3032 :pcs-gap 0 ) true 3 0 The exposure time of 13 seconds is about squarely between the minimum exposure time for S/N=40 of 0.6 seconds and the time to saturation of 233 seconds. Timing link suitability includes constraints ([Group (02 03 04 05 06 07 51) Within 200.0 days]) The scheduling data was generated by CASM 33.0. CASM was run in Phase II mode. /tmp/OPVisit10938275735371165940.xml 3 orbit visit to measure the pre-transit level 1738840487000 259.4393971279742 (Tic-Visit :proposal-id 17468 :visit-id "51" :proposal-version -1 :trans-version "20241216" :date "19-Feb-2025 18:05:04.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 3 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 889248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17468 :visit-id "51" :obset-id "51" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17468 :visit-id "51" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2652 :al-overhead-at-end 0 :internal-dur-at-end 283 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3032 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17468 :visit-id "51" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2652 :al-overhead-at-end 0 :internal-dur-at-end 303 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3032 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17468 :visit-id "51" :orbit-number 3 :pcs-time 380 :si-vis-utilization 2652 :al-overhead-at-end 0 :internal-dur-at-end 622 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3032 :pcs-gap 0 ) true 3 0 The exposure time of 13 seconds is about squarely between the minimum exposure time for S/N=40 of 0.6 seconds and the time to saturation of 233 seconds. Timing link suitability includes constraints ([Group (01 02 03 04 05 06 07) Within 200.0 days] [Group (01 02 04 05 06 07 53) Within 200.0 days] [Group (02 03 04 05 06 07 51) Within 200.0 days]) The scheduling data was generated by CASM 33.0. CASM was run in Phase II mode. /tmp/OPVisit13385201440817597202.xml 3 orbit visit to measure the ingress 1732912799000 298.1368465729619 (Tic-Visit :proposal-id 17468 :visit-id "02" :proposal-version -1 :trans-version "20241216" :date "19-Feb-2025 18:05:05.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 3 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 889248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17468 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17468 :visit-id "02" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2652 :al-overhead-at-end 0 :internal-dur-at-end 283 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3032 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17468 :visit-id "02" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2652 :al-overhead-at-end 0 :internal-dur-at-end 303 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3032 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17468 :visit-id "02" :orbit-number 3 :pcs-time 380 :si-vis-utilization 2652 :al-overhead-at-end 0 :internal-dur-at-end 622 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3032 :pcs-gap 0 ) true 3 0 Timing link suitability includes constraints ([Group (01 02 03 04 05 06 07) Within 200.0 days] [Group (02 03 04 05 06 07 51) Within 200.0 days]) The scheduling data was generated by CASM 33.0. CASM was run in Phase II mode. /tmp/OPVisit11883176139798081068.xml 3 orbit visit to measure the mid-transit 1738178088000 266.70700932168563 (Tic-Visit :proposal-id 17468 :visit-id "03" :proposal-version -1 :trans-version "20241216" :date "19-Feb-2025 18:05:06.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 3 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 610912 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17468 :visit-id "03" :obset-id "03" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17468 :visit-id "03" :orbit-number 1 :pcs-time 380 :si-vis-utilization 1496 :al-overhead-at-end 0 :internal-dur-at-end 283 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3032 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17468 :visit-id "03" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2185 :al-overhead-at-end 0 :internal-dur-at-end 283 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3032 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17468 :visit-id "03" :orbit-number 3 :pcs-time 380 :si-vis-utilization 2149 :al-overhead-at-end 0 :internal-dur-at-end 622 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3032 :pcs-gap 0 ) true 3 0 Timing link suitability includes constraints ([Group (01 02 04 05 06 07 53) Within 200.0 days]) The scheduling data was generated by CASM 33.0. CASM was run in Phase II mode. /tmp/OPVisit14113102674090474751.xml 2 orbit visit to measure the mid-transit (Tic-Visit :proposal-id 17468 :visit-id "53" :proposal-version -1 :trans-version "20241216" :date "19-Feb-2025 18:07:53.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 2 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 384224 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17468 :visit-id "53" :obset-id "53" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17468 :visit-id "53" :orbit-number 1 :pcs-time 380 :si-vis-utilization 1846 :al-overhead-at-end 0 :internal-dur-at-end 283 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3032 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17468 :visit-id "53" :orbit-number 2 :pcs-time 380 :si-vis-utilization 1915 :al-overhead-at-end 0 :internal-dur-at-end 622 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3032 :pcs-gap 0 ) true 2 0 Timing link suitability includes constraints ([Group (01 02 03 04 05 06 07) Within 200.0 days] [Group (01 02 04 05 06 07 53) Within 200.0 days] [Group (02 03 04 05 06 07 51) Within 200.0 days]) The scheduling data was generated by CASM 33.0. CASM was run in Phase II mode. /tmp/OPVisit9263590789132261293.xml 3 orbit visit to measure the early egress 1730881533000 308.2776032692613 (Tic-Visit :proposal-id 17468 :visit-id "04" :proposal-version -1 :trans-version "20241216" :date "19-Feb-2025 18:05:07.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 3 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 889248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17468 :visit-id "04" :obset-id "04" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17468 :visit-id "04" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2576 :al-overhead-at-end 0 :internal-dur-at-end 283 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3032 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17468 :visit-id "04" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2627 :al-overhead-at-end 0 :internal-dur-at-end 283 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3032 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17468 :visit-id "04" :orbit-number 3 :pcs-time 380 :si-vis-utilization 2607 :al-overhead-at-end 0 :internal-dur-at-end 622 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3032 :pcs-gap 0 ) true 3 0 Timing link suitability includes constraints ([Group (01 02 03 04 05 06 07) Within 200.0 days] [Group (01 02 04 05 06 07 53) Within 200.0 days] [Group (02 03 04 05 06 07 51) Within 200.0 days]) The scheduling data was generated by CASM 33.0. CASM was run in Phase II mode. /tmp/OPVisit4730736242422941369.xml 3 orbit visit to measure the late egress 1734093714000 292.7885468026315 (Tic-Visit :proposal-id 17468 :visit-id "05" :proposal-version -1 :trans-version "20241216" :date "19-Feb-2025 18:05:08.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 3 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 889248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17468 :visit-id "05" :obset-id "05" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17468 :visit-id "05" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2652 :al-overhead-at-end 0 :internal-dur-at-end 283 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3032 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17468 :visit-id "05" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2652 :al-overhead-at-end 0 :internal-dur-at-end 303 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3032 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17468 :visit-id "05" :orbit-number 3 :pcs-time 380 :si-vis-utilization 2652 :al-overhead-at-end 0 :internal-dur-at-end 622 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3032 :pcs-gap 0 ) true 3 0 Timing link suitability includes constraints ([Group (01 02 03 04 05 06 07) Within 200.0 days] [Group (01 02 04 05 06 07 53) Within 200.0 days] [Group (02 03 04 05 06 07 51) Within 200.0 days]) The scheduling data was generated by CASM 33.0. CASM was run in Phase II mode. /tmp/OPVisit2616294222063907967.xml 3 orbit visit to measure the very late egress 1734116301000 292.6852289645865 (Tic-Visit :proposal-id 17468 :visit-id "06" :proposal-version -1 :trans-version "20241216" :date "19-Feb-2025 18:05:09.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 3 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 889248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17468 :visit-id "06" :obset-id "06" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17468 :visit-id "06" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2576 :al-overhead-at-end 0 :internal-dur-at-end 283 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3032 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17468 :visit-id "06" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2627 :al-overhead-at-end 0 :internal-dur-at-end 283 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3032 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17468 :visit-id "06" :orbit-number 3 :pcs-time 380 :si-vis-utilization 2607 :al-overhead-at-end 0 :internal-dur-at-end 622 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3032 :pcs-gap 0 ) true 3 0 Timing link suitability includes constraints ([Group (01 02 03 04 05 06 07) Within 200.0 days] [Group (01 02 04 05 06 07 53) Within 200.0 days] [Group (02 03 04 05 06 07 51) Within 200.0 days]) The scheduling data was generated by CASM 33.0. CASM was run in Phase II mode. /tmp/OPVisit16857039419732673408.xml 3 orbit visit to measure the post-transit level 1734615552000 290.3669696549112 (Tic-Visit :proposal-id 17468 :visit-id "07" :proposal-version -1 :trans-version "20241216" :date "19-Feb-2025 18:05:10.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 3 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 889248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17468 :visit-id "07" :obset-id "07" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17468 :visit-id "07" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2652 :al-overhead-at-end 0 :internal-dur-at-end 283 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3032 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17468 :visit-id "07" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2652 :al-overhead-at-end 0 :internal-dur-at-end 303 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3032 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17468 :visit-id "07" :orbit-number 3 :pcs-time 380 :si-vis-utilization 2652 :al-overhead-at-end 0 :internal-dur-at-end 622 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3032 :pcs-gap 0 ) true 3 0 The scheduling data was generated by CASM 33.0. CASM was run in Phase II mode. /tmp/OPVisit3367010095848395572.xml 2 orbit visit to measure the post-transit level 1738500229000 263.0869887117214 (Tic-Visit :proposal-id 17468 :visit-id "57" :proposal-version -1 :trans-version "20241216" :date "19-Feb-2025 18:05:11.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 2 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 592976 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17468 :visit-id "57" :obset-id "57" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17468 :visit-id "57" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2596 :al-overhead-at-end 0 :internal-dur-at-end 283 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3032 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17468 :visit-id "57" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2565 :al-overhead-at-end 0 :internal-dur-at-end 622 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3032 :pcs-gap 0 ) true 2 0