Cannot find file /Users/luqian/Downloads/HST_Visual_Cycle33.pdf 0 Target HD35165 was incorrectly identified as HD36165 in the Phase I proposal. 08/05/2025 Ready for Phase II submission -1374047375 ----- Attempting Submission 1 (Tue Aug 05 16:43:10 GMT 2025) ----- Be+sdO binaries with visual orbits Binaries are common among massive stars, and close pairs interact over their lifetime to transform the binary systems by exchanging mass and angular momentum. The mass transfer scenario results in a gainer star spun up to near-critical rotational velocity and a donor star stripped of its outer envelope to reveal a hot and faint helium star. FUV spectroscopy remains the only feasible approach to detect directly these helium star companions. The orbital and physical properties of the helium companions are essential to trace the evolutionary state of post-mass transfer binaries. Massive helium stars are the probable progenitors of double neutron stars and black holes in X-ray binaries. Here, we will obtain FUV spectroscopic observations for five Be+He binary systems recently angularly resolved through near-IR long baseline interferometry with the CHARA Array and VLTI. The visual orbits combined with distances yield the total system masses, but obtaining individual masses requires spectroscopic orbits from radial velocities. Our goals are to confirm the detection of the stripped helium stars in these Be binaries, determine their orbital elements through measurements of the Doppler shifts, find the individual masses, and refine the physical properties of both components from the reconstruction of individual component spectra using Doppler tomography. We aim to compare the fundamental physical parameters of these systems with evolutionary models to estimate their ages and to trace their formation processes through mass transfer. Here we propose to obtain HST/STIS MAMA, high dispersion UV spectroscopy of a sample of five Be stars that have hot, evolved companions detected through long baseline interferometry. The hot sdO companions have spectra that contribute more to the total flux in the FUV and have a rich line spectrum. The sdO component is detected by calculating the cross-correlation function (CCF) of the observed and model spectra. In most of the systems detected thus far, the lines of the Be star are very broad (due to their rapid rotation) while those of the sdO star's spectrum are narrow, so the components are easily recognized in the CCFs. The faint companions in the five targets in the program were all detected through interferometry with the CHARA Array and VLTI long baseline interferometers, and visual (astrometric) orbits and periods are known. The first goal here is to identify the sdO components in the FUV and measure their radial velocities. Combining these with Be star velocities from ground-based spectra and with the interferometric orbits yields the component masses. The second goal is to use a Doppler tomography algorithm to extract the sdO spectral component to determine its physical properties. The subdwarf components in all the targets contribute at least 2% of the total far-UV flux, so our goal is to obtain a noise level of 1% in the final spectra (S/N = 100) at a resolving power of R=10000 (comparable to that of IUE) in order to measure deep absorption features in the subdwarf spectra (with S/N >3 per resolution element in the subdwarf spectrum alone). These goals can be accomplished through observations with HST/STIS using the E140M grating and MAMA detector which covers the far-UV region of interest (1150 - 1700 Angstroms) with a resolving power of R=45800. This grating produces spectra with sufficient resolution to measure the radial velocity variations of both stars and to record in detail the narrow lines of the subdwarf. We plan to visit each target three times (four times for HD35165) and rebin the spectral dispersion down by a factor of four (for a final R=11450). Thus, we need to obtain a signal-to-noise ratio in each spectroscopic observation of S/N = 29. All the targets are bright in the UV, so we can readily achieve this S/N ratio in a single orbit per visit. Two of the targets (HD43544 and HD191610) were previously observed in program HST-GO-15659, but we need additional observations to cover large sections of their orbits that were missed. The observational parameters proposed for these two targets are the same as in the previous successful HST/STIS observations. The other three stars have not been observed by HST before, and their FUV fluxes and exposure times were determined as follows. For HD35165, we used FUV flux measurements from the OAO-2 satellite (Meade 1999, AJ, 118, 1073) to normalize a model flux spectrum based upon Kurucz atmospheres models for a B3 IV classification with negligible reddening. For HD88661 and HD158427, we used IUE flux calibrated spectra that were rebinned to lower spectral resolving power. In each case we used these FUV flux distributions with the STIS spectroscopic ETC to determine the best neutral density filter aperture for safe limits with the MAMA detector and to find the best ACCUM exposure time to complete the science observations in a single orbit. The ACQ and ACQ-PEAK exposure parameters were determined with the STIS target acquisition ETC assuming a flux model for the classification and the Johnson V-magnitude. We need to make three visits to each target in order to verify the orbital Doppler shifts associated with the subdwarf spectra that should span a range of approximately +/-100 km/s. We used the known orbital periods to define orbital phase windows for each of the visits. Because these windows generally span a large fraction of the orbit, the APT Visit Planner indicates that all the visits are feasible during Cycle 33. Our total request is for three visits of one orbit each for four targets plus four visits for HD35165 (first ever FUV spectral observations), yielding a total request of 16 orbits. Dr. Douglas Gies is a long-time practitioner studying massive binary stars, and he has led several HST investigations of spectroscopic binaries. Dr. Luqian Wang has experience analyzing the Be+He binaries using both ground-based and HST/STIS FUV spectroscopy. Dr. Geraldine Peters is an expert in space observations of hot stars and has led many important investigations on the Be binaries. Dr. Robert Klement has expertise in observing and analyzing the Be binaries using near IR interferometric and radio data as well as spectroscopic observations. Stellar Physics and Stellar Types 6 false false false false false false SUPPORTED STAR B3-B5 V-IV BE NO This object was generated by the targetselector and retrieved from the SIMBAD database. SIMBAD listed proper motion for this target. When retrieving targets with PM from SIMBAD, APT requests the coordinates be calculated with an epoch of the year 2000. Do not modify this epoch. Always review coordinates using the Target Confirmation tool, which graphically displays the PM. This star was incorrectly identified as HD36165 in the Phase I proposal. AN-COL HR-1772 J2000 F_\lambda(1430A)=2.33e-10 erg/s/cm^2/A STAR B3-B5 V-IV BE NO This object was generated by the targetselector and retrieved from the SIMBAD database. SIMBAD listed proper motion for this target. When retrieving targets with PM from SIMBAD, APT requests the coordinates be calculated with an epoch of the year 2000. Do not modify this epoch. Always review coordinates using the Target Confirmation tool, which graphically displays the PM. This star was previously observed in these HST/STIS sequences: odxs05010 odxs54010 odxs56010 J2000 J2000 STAR B0-B2 V-IV BE NO This object was generated by the targetselector and retrieved from the SIMBAD database. SIMBAD listed proper motion for this target. When retrieving targets with PM from SIMBAD, APT requests the coordinates be calculated with an epoch of the year 2000. Do not modify this epoch. Always review coordinates using the Target Confirmation tool, which graphically displays the PM. J2000 J2000 STAR B0-B2 V-IV BE NO This object was generated by the targetselector and retrieved from the SIMBAD database. SIMBAD listed proper motion for this target. When retrieving targets with PM from SIMBAD, APT requests the coordinates be calculated with an epoch of the year 2000. Do not modify this epoch. Always review coordinates using the Target Confirmation tool, which graphically displays the PM. HD-158427 J2000 STAR B3-B5 V-IV BE NO This object was generated by the targetselector and retrieved from the SIMBAD database. SIMBAD listed proper motion for this target. When retrieving targets with PM from SIMBAD, APT requests the coordinates be calculated with an epoch of the year 2000. Do not modify this epoch. Always review coordinates using the Target Confirmation tool, which graphically displays the PM. This target was previously observed with HST/STIS: odxs31010 odxs32010 odxs33010 HD-191610 28-CYG J2000 STIS/FUV-MAMA Spectroscopic No No E140M 1425 STIS/FUV-MAMA Spectroscopic No No E140M 1425 STIS/FUV-MAMA Spectroscopic No No E140M 1425 STIS/FUV-MAMA Spectroscopic No No E140M 1425 STIS/FUV-MAMA Spectroscopic No No E140M 1425 STIS/FUV-MAMA Spectroscopic No No E140M 1425 STIS/FUV-MAMA Spectroscopic No No E140M 1425 STIS/FUV-MAMA Spectroscopic No No E140M 1425 STIS/FUV-MAMA Spectroscopic No No E140M 1425 STIS/FUV-MAMA Spectroscopic No No E140M 1425 STIS/FUV-MAMA Spectroscopic No No E140M 1425 STIS/FUV-MAMA Spectroscopic No No E140M 1425 STIS/FUV-MAMA Spectroscopic No No E140M 1425 STIS/FUV-MAMA Spectroscopic No No E140M 1425 STIS/FUV-MAMA Spectroscopic No No E140M 1425 STIS/FUV-MAMA Spectroscopic No No E140M 1425 The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/m2/fmjhy30n135bdth71j_lyvfh0000gn/T/OPVisit97994179510656455.xml (Tic-Visit :proposal-id 18031 :visit-id "01" :proposal-version -1 :trans-version "20250624" :date "05-Aug-2025 12:42:31.0" :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 87536 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18031 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18031 :visit-id "01" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2607 :al-overhead-at-end 290 :internal-dur-at-end 319 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2987 :pcs-gap 0 ) true 1 0 In Earth shadow. The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/m2/fmjhy30n135bdth71j_lyvfh0000gn/T/OPVisit18110740215496218129.xml (Tic-Visit :proposal-id 18031 :visit-id "02" :proposal-version -1 :trans-version "20250624" :date "05-Aug-2025 12:42:32.0" :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 87536 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18031 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18031 :visit-id "02" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2607 :al-overhead-at-end 290 :internal-dur-at-end 319 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2987 :pcs-gap 0 ) true 1 0 In Earth shadow. The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/m2/fmjhy30n135bdth71j_lyvfh0000gn/T/OPVisit3766140482806103947.xml (Tic-Visit :proposal-id 18031 :visit-id "03" :proposal-version -1 :trans-version "20250624" :date "05-Aug-2025 12:42:32.0" :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 87536 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18031 :visit-id "03" :obset-id "03" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18031 :visit-id "03" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2607 :al-overhead-at-end 290 :internal-dur-at-end 319 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2987 :pcs-gap 0 ) true 1 0 In Earth shadow. The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/m2/fmjhy30n135bdth71j_lyvfh0000gn/T/OPVisit12022362759223690743.xml (Tic-Visit :proposal-id 18031 :visit-id "04" :proposal-version -1 :trans-version "20250624" :date "05-Aug-2025 12:42:32.0" :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 87536 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18031 :visit-id "04" :obset-id "04" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18031 :visit-id "04" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2607 :al-overhead-at-end 290 :internal-dur-at-end 319 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2987 :pcs-gap 0 ) true 1 0 In Earth shadow. The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/m2/fmjhy30n135bdth71j_lyvfh0000gn/T/OPVisit11300349797347029004.xml Also observed in program HST-GO-15659. Additional phase coverage required. (Tic-Visit :proposal-id 18031 :visit-id "05" :proposal-version -1 :trans-version "20250624" :date "05-Aug-2025 12:42:33.0" :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 87536 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18031 :visit-id "05" :obset-id "05" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18031 :visit-id "05" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2596 :al-overhead-at-end 263 :internal-dur-at-end 319 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2976 :pcs-gap 0 ) true 1 0 In Earth shadow. The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/m2/fmjhy30n135bdth71j_lyvfh0000gn/T/OPVisit595094957937467307.xml Also observed in program HST-GO-15659. Additional phase coverage required. (Tic-Visit :proposal-id 18031 :visit-id "06" :proposal-version -1 :trans-version "20250624" :date "05-Aug-2025 12:42:33.0" :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 87536 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18031 :visit-id "06" :obset-id "06" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18031 :visit-id "06" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2596 :al-overhead-at-end 263 :internal-dur-at-end 319 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2976 :pcs-gap 0 ) true 1 0 In Earth shadow. The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/m2/fmjhy30n135bdth71j_lyvfh0000gn/T/OPVisit8284651905079554928.xml Also observed in program HST-GO-15659. Additional phase coverage required. (Tic-Visit :proposal-id 18031 :visit-id "07" :proposal-version -1 :trans-version "20250624" :date "05-Aug-2025 12:42:33.0" :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 87536 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18031 :visit-id "07" :obset-id "07" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18031 :visit-id "07" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2596 :al-overhead-at-end 263 :internal-dur-at-end 319 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2976 :pcs-gap 0 ) true 1 0 In Earth shadow. The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/m2/fmjhy30n135bdth71j_lyvfh0000gn/T/OPVisit2901372272031127358.xml (Tic-Visit :proposal-id 18031 :visit-id "08" :proposal-version -1 :trans-version "20250624" :date "05-Aug-2025 12:42:34.0" :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 87536 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18031 :visit-id "08" :obset-id "08" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18031 :visit-id "08" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2664 :al-overhead-at-end 290 :internal-dur-at-end 319 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3044 :pcs-gap 0 ) true 1 0 In Earth shadow. The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/m2/fmjhy30n135bdth71j_lyvfh0000gn/T/OPVisit13988552086708800831.xml (Tic-Visit :proposal-id 18031 :visit-id "09" :proposal-version -1 :trans-version "20250624" :date "05-Aug-2025 12:42:34.0" :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 87536 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18031 :visit-id "09" :obset-id "09" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18031 :visit-id "09" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2664 :al-overhead-at-end 290 :internal-dur-at-end 319 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3044 :pcs-gap 0 ) true 1 0 In Earth shadow. The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/m2/fmjhy30n135bdth71j_lyvfh0000gn/T/OPVisit5388346878452817944.xml (Tic-Visit :proposal-id 18031 :visit-id "10" :proposal-version -1 :trans-version "20250624" :date "05-Aug-2025 12:42:34.0" :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 87536 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18031 :visit-id "10" :obset-id "10" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18031 :visit-id "10" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2664 :al-overhead-at-end 290 :internal-dur-at-end 319 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3044 :pcs-gap 0 ) true 1 0 In Earth shadow. The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/m2/fmjhy30n135bdth71j_lyvfh0000gn/T/OPVisit8881688624615128211.xml (Tic-Visit :proposal-id 18031 :visit-id "11" :proposal-version -1 :trans-version "20250624" :date "05-Aug-2025 12:42:35.0" :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 87536 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18031 :visit-id "11" :obset-id "11" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18031 :visit-id "11" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2631 :al-overhead-at-end 291 :internal-dur-at-end 319 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3011 :pcs-gap 0 ) true 1 0 In Earth shadow. The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/m2/fmjhy30n135bdth71j_lyvfh0000gn/T/OPVisit7700726400906325431.xml (Tic-Visit :proposal-id 18031 :visit-id "12" :proposal-version -1 :trans-version "20250624" :date "05-Aug-2025 12:42:35.0" :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 87536 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18031 :visit-id "12" :obset-id "12" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18031 :visit-id "12" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2631 :al-overhead-at-end 291 :internal-dur-at-end 319 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3011 :pcs-gap 0 ) true 1 0 In Earth shadow. The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/m2/fmjhy30n135bdth71j_lyvfh0000gn/T/OPVisit13592760797745711438.xml (Tic-Visit :proposal-id 18031 :visit-id "13" :proposal-version -1 :trans-version "20250624" :date "05-Aug-2025 12:42:36.0" :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 87536 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18031 :visit-id "13" :obset-id "13" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18031 :visit-id "13" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2631 :al-overhead-at-end 291 :internal-dur-at-end 319 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3011 :pcs-gap 0 ) true 1 0 In Earth shadow. The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/m2/fmjhy30n135bdth71j_lyvfh0000gn/T/OPVisit4034982035831705665.xml Also observed in program HST-GO-15659. Additional phase coverage required. (Tic-Visit :proposal-id 18031 :visit-id "14" :proposal-version -1 :trans-version "20250624" :date "05-Aug-2025 12:42:36.0" :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 87536 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18031 :visit-id "14" :obset-id "14" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18031 :visit-id "14" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2612 :al-overhead-at-end 290 :internal-dur-at-end 319 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2992 :pcs-gap 0 ) true 1 0 In Earth shadow. The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/m2/fmjhy30n135bdth71j_lyvfh0000gn/T/OPVisit15315690780588652277.xml Also observed in program HST-GO-15659. Additional phase coverage required. (Tic-Visit :proposal-id 18031 :visit-id "15" :proposal-version -1 :trans-version "20250624" :date "05-Aug-2025 12:42:36.0" :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 87536 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18031 :visit-id "15" :obset-id "15" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18031 :visit-id "15" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2612 :al-overhead-at-end 290 :internal-dur-at-end 319 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2992 :pcs-gap 0 ) true 1 0 In Earth shadow. The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/m2/fmjhy30n135bdth71j_lyvfh0000gn/T/OPVisit1313591522525577315.xml Also observed in program HST-GO-15659. Additional phase coverage required. (Tic-Visit :proposal-id 18031 :visit-id "16" :proposal-version -1 :trans-version "20250624" :date "05-Aug-2025 12:42:37.0" :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 87536 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18031 :visit-id "16" :obset-id "16" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18031 :visit-id "16" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2612 :al-overhead-at-end 290 :internal-dur-at-end 319 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2992 :pcs-gap 0 ) true 1 0 In Earth shadow.