Caught in the field lines: Searching for dust-depleted inner regions of protoplanetary disks with the Mg II 2800 doublet

0 Assigned ID: 7609 ----- Attempting Submission 1 (Thu Apr 16 20:19:09 GMT 2026) ----- HST Phase I Proposal 7609 successfully submitted. Receipt: # 7609-1 ----- Attempting Submission 2 (Thu Apr 16 20:54:47 GMT 2026) ----- HST Phase I Proposal 7609 successfully submitted. Receipt: # 7609-2 ----- Attempting Submission 3 (Thu Apr 16 22:38:21 GMT 2026) ----- This target is not used in this proposal. This target is not used in this proposal. 0 ----- Attempting Submission 1 (Fri Aug 14 17:33:37 GMT 2026) ----- HST Phase II Proposal 18350 successfully submitted. Receipt: # 18350-1 ----- Attempting Submission 2 (Mon Aug 17 00:35:51 GMT 2026) ----- HST Phase II Proposal 18350 successfully submitted. Receipt: # 18350-2 ----- Attempting Submission 3 (Mon Aug 17 19:44:34 GMT 2026) ----- Caught in the field lines: Searching for dust-depleted inner regions of protoplanetary disks with the Mg II 2800 doublet Protoplanetary disks, the birthplaces of planetary systems, are initially gas-rich structures that accompany the early evolution of young stars. Constraining how much of this material reaches the accretion flows onto the star is key to tracing the delivery of the building blocks of planets into the inner disk, the prime exoplanet region. Recent studies have shown that the magnetospheric accretion flows of young solar analogs (T Tauri stars, TTS) are depleted in the rocky element Ca, and this might be the result of incorporating solid material into planetary bodies or trapping in pressure bumps produced by planets in inner disk regions. We propose to determine if another key rocky element, Mg, is similarly depleted. We propose to observe 25 protoplanetary discs with STIS-E230M/COS-G230L spanning the disk dissipation timescale, to resolve the Mg II 2800 emission lines of TTS. Our proposed work will be the first systematic analysis of Mg abundances in the accreting material of 2-10 Myr TTS, providing a direct link between the innermost DISK gas and the disk dust's silicate composition (observed with JWST). These observations will help us characterize the rocky reservoir available for planets, constrain the effects of sublimation temperature sequence in rocky elements as well as inform on the available pebble flux along the disk lifetime, necessary to constrain disk evolution and planet formation models. The Mg II 2800 doublet is only accessible with HST. To achieve our scientific goals and measure Mg abundances, we propose to observe our sample using the STIS/E230M grating for our brightest targets, and COS/G230L for our faintests, allowing us to always resolve the doublet with a minimum of S/N ~15 at the peak and S/N ~5 and in the wings (~300 km/s). Because our estimates rely on emission lines formed in accretion flows, we must simultaneously characterize accretion properties to avoid uncertainty from accretion variability. STIS offers broader simultaneous NUV coverage than COS and is more efficient for continuum observations despite its lower throughput. We will observe all targets with the STIS/G230L and STIS/G430L gratings, which provide the NUV-optical continuum needed to derive mass accretion rates by modeling the excess flux over the photosphere. Because our science goal focuses on the Mg II 2800AA doublet, our time exposure calculations are optimized using the continuum flux at 2800AA(F2800). For targets without archival STIS/G230L observations to input into the ETC, we used existing STIS/G230L observations of TTS to calibrate the flux to the mass accretion rate, and then used this relation to estimate F2800 for our sources. Our targets have accretion rates measured independently from either the UV excess or the flux of Halpha line. Our observing strategy is: 1. For target acquisition, we used a flat spectrum scaled to F2800. For our faintest object, OB1a1630, we obtain S/N~20 in 0.9 for STIS ACQ mode and the F28x50 LP (STIS.ta.2364325), and S/N~20 in 6s for COS ACQ with MIRRORA (COS.ta.2364320). 2. For STIS/E230M grating observations we will use the 0.x0.2 slit. For our brightest target, the required S/N is achievable in a median time of ~922.23 sec exposure (e.g. XXCha, STIS.sp.2328244). 3. For our COS/G230L observations, we will use the channel centered at 2950AA. Even for our faintest target, OB1a1630, we obtain the desired S/N in one orbit (COS.sp.2329073). 4. For our G230L and G430L observations we will use the 52x0.2 slit for each target, these come at not extra cost for 67% of our sample. For OB1a1630 S/N ~15 is achieved with exposure times of 1,801.37 sec for G230L (STIS.sp.2328828) and 184.44 for G430L (STIS.sp.2328380). All team members are experts in accretion young stellar objects and protoplanetary disk. M. Micolta is an PhD Candidate at University of Michigan, expert on magnetospheric accretion modeling of emission lines associated with accretion in both UV and optical spectra. N. Calvet is an expert in magnetospheric accretion and protoplanetary disks. L. Hartmann is an expert in star and planet formation, accretion, winds, and protoplanetary disks. T. Thanathibodee is an expert on both continuum and line modeling associated with accretion in young objects. G. Magris is an expert applying Bayesian models to extract abundances and accretion properties of young objects. E .Galimidi is an expert on the analysis emission lines of T Tauri Stars and protoplanetary disks. J. Hernandez is an expert on young star forming regions and the analysis of the spectra of young stellar objects. C. Manara is an expert on accretion and winds and optical spectra in young stars. N. Patino is an expert on magnetospheric accretion modeling of emission lines associated with accretion and protoplanetary disks. E. Manzo-Martinez is an expert on young star forming regions, the analysis of the spectra of young stellar objects and protoplanetary disks. N. Calvet, M. Micolta, L. Hartmann, C. Manara, J. Hernandez and T. Thanathibodee are member of ODYSSEUS (Outflows and Disks around Young Stars: Synergies for the Exploration of Ullyses Spectra) team, made for the analysis of the Hubble UV Legacy Library of Young Stars as Essential Standards (ULLYSES) Directors Discretionary program data. Exoplanets and Exoplanet Formation Stellar Physics and Stellar Types 6 false false false false false false false SUPPORTED STAR PRE-MAIN SEQUENCE STAR PROTOPLANETARY DISK T TAURI STAR 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 PRE-MAIN SEQUENCE STAR PROTOPLANETARY DISK T TAURI STAR 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. V-mag obtained from Sky Mapper DR4 g and r mag, transformed as V=g-0.501(g-r) -0.05 J2000 J2000 STAR PRE-MAIN SEQUENCE STAR PROTOPLANETARY DISK T TAURI STAR 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 PRE-MAIN SEQUENCE STAR PROTOPLANETARY DISK T TAURI STAR 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 PRE-MAIN SEQUENCE STAR PROTOPLANETARY DISK T TAURI STAR 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 PRE-MAIN SEQUENCE STAR PROTOPLANETARY DISK T TAURI STAR 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 PRE-MAIN SEQUENCE STAR PROTOPLANETARY DISK T TAURI STAR 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 PRE-MAIN SEQUENCE STAR PROTOPLANETARY DISK T TAURI STAR 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 PRE-MAIN SEQUENCE STAR PROTOPLANETARY DISK T TAURI STAR 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. V-mag obtained from Sky Mapper DR4 g and r magnitudes ,following V=g-0.501(g-r) -0.05 J2000 J2000 STAR PRE-MAIN SEQUENCE STAR PROTOPLANETARY DISK T TAURI STAR 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 PRE-MAIN SEQUENCE STAR PROTOPLANETARY DISK T TAURI STAR 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 PRE-MAIN SEQUENCE STAR PROTOPLANETARY DISK T TAURI STAR 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 PRE-MAIN SEQUENCE STAR PROTOPLANETARY DISK T TAURI STAR 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 PRE-MAIN SEQUENCE STAR PROTOPLANETARY DISK T TAURI STAR 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 PRE-MAIN SEQUENCE STAR PROTOPLANETARY DISK T TAURI STAR 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 PRE-MAIN SEQUENCE STAR PROTOPLANETARY DISK T TAURI STAR 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. V-mag estimated using g and r Pan-STARRS magnitudes, following V = g - 0.59(g-5) - 0.01. J2000 J2000 STAR PRE-MAIN SEQUENCE STAR PROTOPLANETARY DISK T TAURI STAR 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. V-mag estimated using g and r Pan-STARRS magnitudes, following V = g - 0.59(g-5) - 0.01. J2000 J2000 STAR PRE-MAIN SEQUENCE STAR PROTOPLANETARY DISK T TAURI STAR 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. V-mag estimated using g and r Pan-STARRS magnitudes, following V = g - 0.59(g-5) - 0.01. J2000 J2000 STAR PRE-MAIN SEQUENCE STAR PROTOPLANETARY DISK T TAURI STAR 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 PRE-MAIN SEQUENCE STAR PROTOPLANETARY DISK T TAURI STAR 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 PRE-MAIN SEQUENCE STAR PROTOPLANETARY DISK T TAURI STAR 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 PRE-MAIN SEQUENCE STAR PROTOPLANETARY DISK T TAURI STAR 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 PRE-MAIN SEQUENCE STAR PROTOPLANETARY DISK T TAURI STAR 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 PRE-MAIN SEQUENCE STAR PROTOPLANETARY DISK T TAURI STAR 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 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/NUV-MAMA Spectroscopic No No E230M 2707 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/NUV-MAMA Spectroscopic No No E230M 2707 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/NUV-MAMA Spectroscopic No No E230M 2707 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/NUV-MAMA Spectroscopic No No E230M 2707 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/NUV-MAMA Spectroscopic No No E230M 2707 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/NUV-MAMA Spectroscopic No No E230M 2707 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/NUV-MAMA Spectroscopic No No E230M 2707 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/NUV-MAMA Spectroscopic No No E230M 2707 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/NUV-MAMA Spectroscopic No No E230M 2707 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 COS/NUV Spectroscopic No No G230L 2950 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 COS/NUV Spectroscopic No No G230L 2950 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/NUV-MAMA Spectroscopic No No E230M 2707 COS/NUV Spectroscopic No No G230L 2950 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/NUV-MAMA Spectroscopic No No E230M 2707 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/NUV-MAMA Spectroscopic No No E230M 2707 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/NUV-MAMA Spectroscopic No No E230M 2707 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/NUV-MAMA Spectroscopic No No E230M 2707 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/NUV-MAMA Spectroscopic No No E230M 2707 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/NUV-MAMA Spectroscopic No No E230M 2707 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 COS/NUV Spectroscopic No No G230L 2950 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 COS/NUV Spectroscopic No No G230L 2950 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 COS/NUV Spectroscopic No No G230L 2950 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 COS/NUV Spectroscopic No No G230L 2950 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 COS/NUV Spectroscopic No No G230L 2950 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/NUV-MAMA Spectroscopic No No E230M 2707 STIS/CCD Spectroscopic No No G430L 4300 1786925307643 /Users/micoltam/Documents/Proposals/HSTcycle34APT/Phase II/OP-cache/hst_phase2_18350_mg-v01.xml The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 18350 :visit-id "01" :proposal-version -1 :trans-version "20260618" :date "16-Aug-2026 20:08:27.0" :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 368720 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18350 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18350 :visit-id "01" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2215 :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 3152 :pcs-gap 0 ) true 1 0 Flux at 2800 AA = 1.023324E-14 1786925308488 /Users/micoltam/Documents/Proposals/HSTcycle34APT/Phase II/OP-cache/hst_phase2_18350_mg-v02.xml The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 18350 :visit-id "02" :proposal-version -1 :trans-version "20260618" :date "16-Aug-2026 20:08:28.0" :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 368720 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18350 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18350 :visit-id "02" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2128 :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 3152 :pcs-gap 0 ) true 1 0 Flux at 2800 AA = 1.086672e-14 1786925308997 /Users/micoltam/Documents/Proposals/HSTcycle34APT/Phase II/OP-cache/hst_phase2_18350_mg-v03.xml The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 18350 :visit-id "03" :proposal-version -1 :trans-version "20260618" :date "16-Aug-2026 20:08:28.0" :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 368720 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18350 :visit-id "03" :obset-id "03" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18350 :visit-id "03" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2770 :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 3152 :pcs-gap 0 ) true 1 0 Flux at 2800 AA = 3.291861E-15 1786925309842 /Users/micoltam/Documents/Proposals/HSTcycle34APT/Phase II/OP-cache/hst_phase2_18350_mg-v04.xml The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 18350 :visit-id "04" :proposal-version -1 :trans-version "20260618" :date "16-Aug-2026 20:08:29.0" :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 368720 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18350 :visit-id "04" :obset-id "04" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18350 :visit-id "04" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2770 :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 3152 :pcs-gap 0 ) true 1 0 Flux at 2800 = 2.421019E-15 1786925310358 /Users/micoltam/Documents/Proposals/HSTcycle34APT/Phase II/OP-cache/hst_phase2_18350_mg-v05.xml The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 18350 :visit-id "05" :proposal-version -1 :trans-version "20260618" :date "16-Aug-2026 20:08:30.0" :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 368720 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18350 :visit-id "05" :obset-id "05" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18350 :visit-id "05" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2611 :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 2992 :pcs-gap 0 ) true 1 0 Flux at 2800 = 3.670106e-15 1786925311215 /Users/micoltam/Documents/Proposals/HSTcycle34APT/Phase II/OP-cache/hst_phase2_18350_mg-v06.xml The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 18350 :visit-id "06" :proposal-version -1 :trans-version "20260618" :date "16-Aug-2026 20:08:31.0" :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 368720 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18350 :visit-id "06" :obset-id "06" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18350 :visit-id "06" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2575 :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 2992 :pcs-gap 0 ) true 1 0 Flux at 2800 AA = 7.178466e-15 1786925311746 /Users/micoltam/Documents/Proposals/HSTcycle34APT/Phase II/OP-cache/hst_phase2_18350_mg-v07.xml The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 18350 :visit-id "07" :proposal-version -1 :trans-version "20260618" :date "16-Aug-2026 20:08:31.0" :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 368720 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18350 :visit-id "07" :obset-id "07" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18350 :visit-id "07" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2615 :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 3001 :pcs-gap 0 ) true 1 0 Flux at 2800 = 4.356577e-15 1786925312660 /Users/micoltam/Documents/Proposals/HSTcycle34APT/Phase II/OP-cache/hst_phase2_18350_mg-v09.xml The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 18350 :visit-id "09" :proposal-version -1 :trans-version "20260618" :date "16-Aug-2026 20:08:32.0" :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 368720 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18350 :visit-id "09" :obset-id "09" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18350 :visit-id "09" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2597 :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 2979 :pcs-gap 0 ) true 1 0 Flux at 2800 =3.978579e-15 1786925313288 /Users/micoltam/Documents/Proposals/HSTcycle34APT/Phase II/OP-cache/hst_phase2_18350_mg-v10.xml The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 18350 :visit-id "10" :proposal-version -1 :trans-version "20260618" :date "16-Aug-2026 20:08:33.0" :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 334032 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18350 :visit-id "10" :obset-id "10" :pcs-mode "FGS" ) (Tic-Obset :proposal-id 18350 :visit-id "10" :obset-id "B0" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18350 :visit-id "10" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2398 :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 2979 :pcs-gap 0 ) (Tic-Orbit :proposal-id 18350 :visit-id "10" :orbit-number 2 :pcs-time 380 :si-vis-utilization 1863 :al-overhead-at-end 0 :internal-dur-at-end 366 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) true 2 0 Flux at 2800 = 1.840252e-15 1786925314703 /Users/micoltam/Documents/Proposals/HSTcycle34APT/Phase II/OP-cache/hst_phase2_18350_mg-v11.xml The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 18350 :visit-id "11" :proposal-version -1 :trans-version "20260618" :date "16-Aug-2026 20:08:34.0" :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 368720 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18350 :visit-id "11" :obset-id "11" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18350 :visit-id "11" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2585 :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 2979 :pcs-gap 0 ) true 1 0 Flux at 2800 (From Macc) =5.089552e-15 1786925315312 /Users/micoltam/Documents/Proposals/HSTcycle34APT/Phase II/OP-cache/hst_phase2_18350_mg-v12.xml The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 18350 :visit-id "12" :proposal-version -1 :trans-version "20260618" :date "16-Aug-2026 20:08:35.0" :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 334032 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18350 :visit-id "12" :obset-id "12" :pcs-mode "FGS" ) (Tic-Obset :proposal-id 18350 :visit-id "12" :obset-id "B2" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18350 :visit-id "12" :orbit-number 1 :pcs-time 380 :si-vis-utilization 1898 :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 2976 :pcs-gap 0 ) (Tic-Orbit :proposal-id 18350 :visit-id "12" :orbit-number 2 :pcs-time 380 :si-vis-utilization 1869 :al-overhead-at-end 0 :internal-dur-at-end 366 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2976 :pcs-gap 0 ) true 2 0 Flux at 2800 (From Macc) =2.904806e-15 1786925316234 /Users/micoltam/Documents/Proposals/HSTcycle34APT/Phase II/OP-cache/hst_phase2_18350_mg-v13.xml The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 18350 :visit-id "13" :proposal-version -1 :trans-version "20260618" :date "16-Aug-2026 20:08:36.0" :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 334032 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18350 :visit-id "13" :obset-id "13" :pcs-mode "FGS" ) (Tic-Obset :proposal-id 18350 :visit-id "13" :obset-id "B3" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18350 :visit-id "13" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2584 :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 2979 :pcs-gap 0 ) (Tic-Orbit :proposal-id 18350 :visit-id "13" :orbit-number 2 :pcs-time 380 :si-vis-utilization 1869 :al-overhead-at-end 0 :internal-dur-at-end 366 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) true 2 0 Flux at 2800 (From Macc) =1.768462e-15 1786925316749 /Users/micoltam/Documents/Proposals/HSTcycle34APT/Phase II/OP-cache/hst_phase2_18350_mg-v15.xml The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 18350 :visit-id "15" :proposal-version -1 :trans-version "20260618" :date "16-Aug-2026 20:08:36.0" :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 368720 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18350 :visit-id "15" :obset-id "15" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18350 :visit-id "15" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2597 :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 2979 :pcs-gap 0 ) true 1 0 Flux at 2800 (From Macc) = 1.245306e-15 1786925317713 /Users/micoltam/Documents/Proposals/HSTcycle34APT/Phase II/OP-cache/hst_phase2_18350_mg-v16.xml The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 18350 :visit-id "16" :proposal-version -1 :trans-version "20260618" :date "16-Aug-2026 20:08:37.0" :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 386192 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18350 :visit-id "16" :obset-id "16" :pcs-mode "FGS" ) (Tic-Obset :proposal-id 18350 :visit-id "16" :obset-id "A6" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18350 :visit-id "16" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2500 :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 3152 :pcs-gap 0 ) (Tic-Orbit :proposal-id 18350 :visit-id "16" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2719 :al-overhead-at-end 0 :internal-dur-at-end 423 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3152 :pcs-gap 0 ) true 2 0 Flux at 2800 = 1.484415e-15 1786925319030 /Users/micoltam/Documents/Proposals/HSTcycle34APT/Phase II/OP-cache/hst_phase2_18350_mg-v17.xml The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 18350 :visit-id "17" :proposal-version -1 :trans-version "20260618" :date "16-Aug-2026 20:08:38.0" :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 377504 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18350 :visit-id "17" :obset-id "17" :pcs-mode "FGS" ) (Tic-Obset :proposal-id 18350 :visit-id "17" :obset-id "A7" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18350 :visit-id "17" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2612 :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 2992 :pcs-gap 0 ) (Tic-Orbit :proposal-id 18350 :visit-id "17" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2611 :al-overhead-at-end 0 :internal-dur-at-end 414 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2992 :pcs-gap 0 ) true 2 0 Flux at 2800 = 6.392453e-16 1786925320194 /Users/micoltam/Documents/Proposals/HSTcycle34APT/Phase II/OP-cache/hst_phase2_18350_mg-v18.xml The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 18350 :visit-id "18" :proposal-version -1 :trans-version "20260618" :date "16-Aug-2026 20:08:39.0" :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 377504 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18350 :visit-id "18" :obset-id "18" :pcs-mode "FGS" ) (Tic-Obset :proposal-id 18350 :visit-id "18" :obset-id "A8" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18350 :visit-id "18" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2611 :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 2992 :pcs-gap 0 ) (Tic-Orbit :proposal-id 18350 :visit-id "18" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2611 :al-overhead-at-end 0 :internal-dur-at-end 414 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2992 :pcs-gap 0 ) true 2 0 Flux at 2800 = 7.230796e-16 1786925321080 /Users/micoltam/Documents/Proposals/HSTcycle34APT/Phase II/OP-cache/hst_phase2_18350_mg-v19.xml The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 18350 :visit-id "19" :proposal-version -1 :trans-version "20260618" :date "16-Aug-2026 20:08:40.0" :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 377504 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18350 :visit-id "19" :obset-id "19" :pcs-mode "FGS" ) (Tic-Obset :proposal-id 18350 :visit-id "19" :obset-id "A9" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18350 :visit-id "19" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2598 :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 2979 :pcs-gap 0 ) (Tic-Orbit :proposal-id 18350 :visit-id "19" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2598 :al-overhead-at-end 0 :internal-dur-at-end 414 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) true 2 0 Flux at 2800 = 7.629865e-16 1786925323053 /Users/micoltam/Documents/Proposals/HSTcycle34APT/Phase II/OP-cache/hst_phase2_18350_mg-v20.xml The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 18350 :visit-id "20" :proposal-version -1 :trans-version "20260618" :date "16-Aug-2026 20:08:42.0" :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 360112 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18350 :visit-id "20" :obset-id "20" :pcs-mode "FGS" ) (Tic-Obset :proposal-id 18350 :visit-id "20" :obset-id "A0" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18350 :visit-id "20" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2598 :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 2979 :pcs-gap 0 ) (Tic-Orbit :proposal-id 18350 :visit-id "20" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2269 :al-overhead-at-end 0 :internal-dur-at-end 395 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) true 2 0 Flux at 2800 (From Macc) =3.074069e-16 1786925324034 /Users/micoltam/Documents/Proposals/HSTcycle34APT/Phase II/OP-cache/hst_phase2_18350_mg-v21.xml The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 18350 :visit-id "21" :proposal-version -1 :trans-version "20260618" :date "16-Aug-2026 20:08:43.0" :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 377504 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18350 :visit-id "21" :obset-id "21" :pcs-mode "FGS" ) (Tic-Obset :proposal-id 18350 :visit-id "21" :obset-id "A1" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18350 :visit-id "21" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2202 :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 2979 :pcs-gap 0 ) (Tic-Orbit :proposal-id 18350 :visit-id "21" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2543 :al-overhead-at-end 0 :internal-dur-at-end 414 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) true 2 0 Flux at 2800 (From Macc) =6.139600e-16 1786925324776 /Users/micoltam/Documents/Proposals/HSTcycle34APT/Phase II/OP-cache/hst_phase2_18350_mg-v22.xml The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 18350 :visit-id "22" :proposal-version -1 :trans-version "20260618" :date "16-Aug-2026 20:08:44.0" :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 377504 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18350 :visit-id "22" :obset-id "22" :pcs-mode "FGS" ) (Tic-Obset :proposal-id 18350 :visit-id "22" :obset-id "A2" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18350 :visit-id "22" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2596 :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 2979 :pcs-gap 0 ) (Tic-Orbit :proposal-id 18350 :visit-id "22" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2593 :al-overhead-at-end 0 :internal-dur-at-end 414 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) true 2 0 Flux at 2800 (From Macc) =3.334274e-16 1786925325939 /Users/micoltam/Documents/Proposals/HSTcycle34APT/Phase II/OP-cache/hst_phase2_18350_mg-v23.xml The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 18350 :visit-id "23" :proposal-version -1 :trans-version "20260618" :date "16-Aug-2026 20:08:45.0" :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 377504 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18350 :visit-id "23" :obset-id "23" :pcs-mode "FGS" ) (Tic-Obset :proposal-id 18350 :visit-id "23" :obset-id "A3" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18350 :visit-id "23" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2598 :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 2979 :pcs-gap 0 ) (Tic-Orbit :proposal-id 18350 :visit-id "23" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2599 :al-overhead-at-end 0 :internal-dur-at-end 414 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) true 2 0 Flux at 2800 (From Macc) =2.983073e-16 1786925326575 /Users/micoltam/Documents/Proposals/HSTcycle34APT/Phase II/OP-cache/hst_phase2_18350_mg-v24.xml The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 18350 :visit-id "24" :proposal-version -1 :trans-version "20260618" :date "16-Aug-2026 20:08:46.0" :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 377504 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18350 :visit-id "24" :obset-id "24" :pcs-mode "FGS" ) (Tic-Obset :proposal-id 18350 :visit-id "24" :obset-id "A4" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18350 :visit-id "24" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2598 :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 2979 :pcs-gap 0 ) (Tic-Orbit :proposal-id 18350 :visit-id "24" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2593 :al-overhead-at-end 0 :internal-dur-at-end 414 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) true 2 0 Flux at 2800 (From Macc) = 4.84E-15