The Innermost Regions of FU Ori Disks: A Spectral Legacy for HST/STIS+COS

Justification may be needed for use of certain lifetime positions with G160M. See "Errors and Warnings" for more details. 0 Assigned ID: 2927 ----- Attempting Submission 1 (Thu Mar 24 01:02:35 GMT 2022) ----- HST Phase I Proposal 2927 successfully submitted. Receipt: # 2927-1 ----- Attempting Submission 2 (Fri Mar 25 07:00:03 GMT 2022) ----- We can not understand this error as we see the restrictions for G130M but not G160M, The warning seems to be about where to put the target on the detector, which we don't set here in Phase I. Per David French, "Specifically, you can safely submit your proposal with that error message present. The default LP for G160M (LP6) will be used if you do not include a specific LP request in the “Special Requirements” section." For the best data quality, it is generally required to use all four FP-POS positions when observing at a given COS cenwave. ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN ORBITAL VISIBILITY OVERRUN Visit 11 to replace Visit 10 due to failed Guide Star acquisition. This is the second guide star failure for the target. 1472987269 ----- Attempting Submission 1 (Tue Jun 28 04:46:42 GMT 2022) ----- ----- Attempting Submission 2 (Fri Sep 23 06:20:22 GMT 2022) ----- HST Phase II Proposal 17176 successfully submitted. Receipt: # 17176-2 ----- Attempting Submission 3 (Fri Sep 23 06:21:24 GMT 2022) ----- HST Phase II Proposal 17176 successfully submitted. Receipt: # 17176-3 ----- Attempting Submission 4 (Fri Sep 30 06:49:46 GMT 2022) ----- HST Phase II Proposal 17176 successfully submitted. Receipt: # 17176-4 ----- Attempting Submission 5 (Sat Oct 15 21:03:02 GMT 2022) ----- HST Phase II Proposal 17176 successfully submitted. Receipt: # 17176-5 ----- Attempting Submission 6 (Mon Jan 02 05:06:13 GMT 2023) ----- Your proposal could not be saved. Submission aborted. ----- Attempting Submission 7 (Fri May 12 02:47:50 GMT 2023) ----- ----- Attempting Submission 8 (Wed Feb 07 19:32:42 GMT 2024) ----- Your proposal could not be saved. Submission aborted. ----- Attempting Submission 9 (Fri Apr 12 17:36:45 GMT 2024) ----- HST Phase II Proposal 17176 failed submission. ----- Attempting Submission 10 (Mon Apr 15 19:30:39 GMT 2024) ----- Visits that are in scheduling were not changed but have overrun errors (they previously did not have overrun errors). The Innermost Regions of FU Ori Disks: A Spectral Legacy for HST/STIS+COS FU Ori stars are a rare class of young stellar object, with less than two dozen examples known. Yet the long-lasting FU Ori outburst events play a prominent role in our understanding of stellar mass assembly at the individual star level. The currently favored model is that of an inner disk instability causing a factor of 100-10,000 increase in the disk-to-star accretion rate. Ultraviolet observations are the most direct way to test the accretion disk scenario -- by measuring the hottest part of the inner disk and thereby determining physical parameters such as temperature T_max and temperature profile T(R). We propose here a complete STIS+COS legacy spectrum for the prototype of the class, FU Ori itself (11 orbits), plus a STIS low-resolution NUV spectral survey for four additional FU Ori outbursts (10 orbits). Heating by viscous accretion will be tested by (1) comparing the new data on FU Ori to a previous STIS spectrum obtained 20 years ago, to look for evidence of disk cooling, and (2) comparing the maximum disk temperature across the five targets, which span a factor of 6 in luminosity. These tests can only be done in the NUV, which is sensitive to the hottest disk temperatures. The spectra will be interpreted using a new empirical disk model that has been applied successfully to longer wavelength observations of FU Ori stars. This survey of extreme accretion disks provides an important complement to the ULLYSES DD Spectroscopic Legacy Project, developed to evaluate magnetospheric accretion on typical T Tauri stars. Our program focuses on the extreme state of accretion physics for young stars, with importance for the evolution of the star and the disk. FU Ori: STIS G430L, G230L, G140L (in two orbits) plus E230M (in 5 orbits) FU Ori, COS: G130M and G160M (4 orbits) Five other targets: G230L and quick G430L spectra (2 orbits total) Optical peakups are based on a flux-calibrated spectrum of V2493 Cyg, scaled to recent ASAS-SN g-band photometry of all targets. The COS acquisition of FU Ori uses MIRRORB and is estimated from a previous E140M spectrum, but scaled down according to V-band decline over past 20 years. Count rates are provided for acquisitions and the COS FUV spectra. Sources are not highly variable, so the count rates should be accurate to within a factor of ~2. Spectra for count rates: 1) Optical: used V2493 Cyg, scaled to appropropriate flux using recent ASAS-SN g-band photometry 2) near-UV: used an old STIS E230M spectrum of FU Ori 3) far-UV, two choices: (a) V836 Tau COS, scaled for C IV emission that may have been detected in IUE spectrum of FU Ori (b) flat spectrum with flux of FU Ori from continuum (estimated from IUE, may not be significant) The targets are all far lower than the bright limits of COS and the STIS MAMA detectors. The PI Lynne Hillenbrand has over 25 years of experience in the field of star formation, young stellar objects, and pre-main sequence populations. Apropos the topic of the proposal, she has led or been involved with several papers over the past decade on the discovery of new FU Ori and other outburst/burst classes of young stellar objects, as well as on the statistics of such outbursts. She has also worked extensively with optical and near-infrared observations of FU Ori stars at high spectral resolution. Currently, she is working with co-I Carvalho to further develop the disk model discussed in the proposal, and apply it to optical and infrared spectrophotometry of FU Ori stars in preparation for applying it to the ultraviolet when the proposed HST observations are obtained. Co-I Adolfo Carvalho is a graduate student in good standing at the California Institute of Technology, advised by the PI. He will modify the disk modelling infrastructure described in the proposal and apply it to the ultraviolet data set. In addition to the disk components, another focus is on isolating and analyzing the wind components of the spectra. Carvalho would be partially supported by an award to this proposal and would lead the papers on the STIS and COS data analysis. Co-I Gregory Herczeg is an expert in accretion-outflow diagnostics across the electromagnetic spectrum, including studies of episodic accretion. He has particular interests in the UV wavelength range and extensive experience with HST/STIS and HST/COS, including PI of a large program GO 11616 and leadership in the ULLYSES DD Spectroscopic Legacy Project on young stars. Herczeg will have primary responsibility for the preparation of observations and STIS data reduction. Co-I Kevin France is an expert in UV astrophysics, including with HST, helped build COS, and has been PI and Co-I of many large and small programs related to accretion disks and also to magnetic activity on cool stars. France will have primary responsibility for the COS data reduction. Stellar Physics and Stellar Types 6 false false true false false false false false AVAILABLE EXT-STAR FU ORIONIS STAR NO RA and Dec from Gaia DR3 g=10.6 in ASAS-SN J2000 J2000 EXT-STAR FU ORIONIS STAR This object was generated by the targetselector and retrieved from the SIMBAD database. g=13.6 from ASAS-SN J2000 J2000 EXT-STAR FU ORIONIS STAR NO This object was generated by the targetselector and retrieved from the SIMBAD database. g=13.5 from ASAS-SN J2000 J2000 EXT-STAR FU ORIONIS STAR NO This object was generated by the targetselector and retrieved from the SIMBAD database. g=13.5 from ASAS-SN J2000 J2000 EXT-STAR FU ORIONIS STAR NO This object was generated by the targetselector and retrieved from the SIMBAD database. V-band from Kospal+2016 g=14.1 from ASAS-SN J2000 J2000 EXT-STAR FU ORIONIS STAR NO This object was generated by the targetselector and retrieved from the SIMBAD database. g=14.9 from ASAS-SN J2000 J2000 STIS/CCD Imaging No No F28X50OIII STIS/NUV-MAMA Spectroscopic No No E230M 2707 STIS/NUV-MAMA Spectroscopic No No E230M 2124 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/FUV-MAMA Spectroscopic No No G140L 1425 STIS/CCD Spectroscopic No No G430L 4300 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G160M 1577 STIS/CCD Imaging No No F28X50OIII STIS/CCD Spectroscopic No No G430L 4300 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Imaging No No F28X50OIII STIS/CCD Spectroscopic No No G430L 4300 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Imaging No No F28X50OIII STIS/CCD Spectroscopic No No G430L 4300 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Imaging No No F28X50OIII STIS/CCD Spectroscopic No No G430L 4300 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Imaging No No F28X50OIII STIS/CCD Spectroscopic No No G430L 4300 STIS/NUV-MAMA Spectroscopic No No G230L 2376 1712938568648 The scheduling data was generated by CASM 32.0. CASM was run in Phase II mode. /Users/gregoryh/Downloads/OP-cache/17176_20240412-v01.xml 1681870174000 97.38494819780658 (Tic-Visit :proposal-id 17176 :visit-id "01" :proposal-version -1 :trans-version "20230626" :date "12-Apr-2024 11:16:07.0" :trans-errors '(:WARNINGS 4 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 4 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 1166016 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17176 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17176 :visit-id "01" :orbit-number 1 :pcs-time 443 :si-vis-utilization 2529 :al-overhead-at-end 0 :internal-dur-at-end 2423 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2913 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17176 :visit-id "01" :orbit-number 2 :pcs-time 392 :si-vis-utilization 2530 :al-overhead-at-end 0 :internal-dur-at-end 168 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2913 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17176 :visit-id "01" :orbit-number 3 :pcs-time 392 :si-vis-utilization 2529 :al-overhead-at-end 0 :internal-dur-at-end 48 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2913 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17176 :visit-id "01" :orbit-number 4 :pcs-time 392 :si-vis-utilization 2529 :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 2913 :pcs-gap 0 ) true 4 4 Brightest pixel: 6.8 cts/s Source: 49.2 cts/s in 9x9 box Two different ETCs: 1808977, using V836 Tau COS spectrum (FU Ori is 2x brighter in C IV: Brightest pixel: 0.002 cts/s (=> 0.004 for FU Ori) Count rate: 77 cts/s (=> 150 for FU Ori) Flat spectrum with flux of 1e-15 erg/cm2/s/A ETC 1808973 Brightest pixel 1.8e-4 cts/s, count rate 89 cts/s Two different ETCs: 1808977, using V836 Tau COS spectrum (FU Ori is 2x brighter in C IV: Brightest pixel: 0.002 cts/s (=> 0.004 for FU Ori) Count rate: 77 cts/s (=> 150 for FU Ori) Flat spectrum with flux of 1e-15 erg/cm2/s/A ETC 1808973 Brightest pixel 1.8e-4 cts/s, count rate 89 cts/s Two different ETCs: 1808977, using V836 Tau COS spectrum (FU Ori is 2x brighter in C IV: Brightest pixel: 0.002 cts/s (=> 0.004 for FU Ori) Count rate: 77 cts/s (=> 150 for FU Ori) Flat spectrum with flux of 1e-15 erg/cm2/s/A ETC 1808973 Brightest pixel 1.8e-4 cts/s, count rate 89 cts/s Two different ETCs: 1808977, using V836 Tau COS spectrum (FU Ori is 2x brighter in C IV: Brightest pixel: 0.002 cts/s (=> 0.004 for FU Ori) Count rate: 77 cts/s (=> 150 for FU Ori) Flat spectrum with flux of 1e-15 erg/cm2/s/A ETC 1808973 Brightest pixel 1.8e-4 cts/s, count rate 89 cts/s V836 Tau COS spectrum: 1808999 --0.09 cts/s in brightest pixel at Ly-alpha (geocoronal) --0.01 cts/s in brightest in Segment A (0.02 cts/s for FU Ori) --59 cts/s in detector A (=> 120 cts/s for FU Ori) --228 cts/s in detector B (geocoronal Ly-alpha) Two different ETCs: Flat spectrum with flux of 1e-15 erg/cm2/s/A ETC 1808755 Brightest pixel 0.09 cts/s, count rate 305 cts/s V836 Tau COS spectrum: 1808999 --0.09 cts/s in brightest pixel at Ly-alpha (geocoronal) --0.01 cts/s in brightest in Segment A (0.02 cts/s for FU Ori) --59 cts/s in detector A (=> 120 cts/s for FU Ori) --228 cts/s in detector B (geocoronal Ly-alpha) Two different ETCs: Flat spectrum with flux of 1e-15 erg/cm2/s/A ETC 1808755 Brightest pixel 0.09 cts/s, count rate 305 cts/s V836 Tau COS spectrum: --0.08 cts/s in brightest pixel (=0.16 for FU Ori) --100 cts/s in entire detector (=200 for FU Ori) Two different ETCs: Flat spectrum with flux of 1e-15 erg/cm2/s/A ETC 1808755 Brightest pixel 0.09 cts/s, count rate 305 cts/s V836 Tau COS spectrum: --0.08 cts/s in brightest pixel (=0.16 for FU Ori) --100 cts/s in entire detector (=200 for FU Ori) Two different ETCs: Flat spectrum with flux of 1e-15 erg/cm2/s/A ETC 1808755 Brightest pixel 0.09 cts/s, count rate 305 cts/s 1712938569824 The scheduling data was generated by CASM 32.0. CASM was run in Phase II mode. /Users/gregoryh/Downloads/OP-cache/17176_20240412-v04.xml 1681068950000 276.5705476241195 (Tic-Visit :proposal-id 17176 :visit-id "04" :proposal-version -1 :trans-version "20230626" :date "12-Apr-2024 11:16:09.0" :trans-errors '(:WARNINGS 2 :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 994976 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17176 :visit-id "04" :obset-id "04" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17176 :visit-id "04" :orbit-number 1 :pcs-time 443 :si-vis-utilization 2845 :al-overhead-at-end 0 :internal-dur-at-end 178 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3216 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17176 :visit-id "04" :orbit-number 2 :pcs-time 392 :si-vis-utilization 2846 :al-overhead-at-end 0 :internal-dur-at-end 582 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3216 :pcs-gap 0 ) true 2 2 g=14.4 S/N=40 in 0.04 s, saturation in 7 s Brightest pixel: 0.15 cts/s Brightest pixel: 0.15 cts/s 1712938570756 The scheduling data was generated by CASM 32.0. CASM was run in Phase II mode. /Users/gregoryh/Downloads/OP-cache/17176_20240412-v05.xml (Tic-Visit :proposal-id 17176 :visit-id "05" :proposal-version -1 :trans-version "20230626" :date "12-Apr-2024 11:16:10.0" :trans-errors '(:WARNINGS 2 :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 925392 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17176 :visit-id "05" :obset-id "05" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17176 :visit-id "05" :orbit-number 1 :pcs-time 443 :si-vis-utilization 2749 :al-overhead-at-end 0 :internal-dur-at-end 178 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3136 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17176 :visit-id "05" :orbit-number 2 :pcs-time 392 :si-vis-utilization 2750 :al-overhead-at-end 0 :internal-dur-at-end 582 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3136 :pcs-gap 0 ) true 2 2 g=13.5 S/N=40 in 0.01 s, saturation in 1.96 s 0.34 cts/s in brightest pixel 0.34 cts/s in brightest pixel 1712938571683 The scheduling data was generated by CASM 32.0. CASM was run in Phase II mode. /Users/gregoryh/Downloads/OP-cache/17176_20240412-v03.xml 1680714748000 287.6677668441015 (Tic-Visit :proposal-id 17176 :visit-id "03" :proposal-version -1 :trans-version "20230626" :date "12-Apr-2024 11:16:11.0" :trans-errors '(:WARNINGS 2 :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 994976 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17176 :visit-id "03" :obset-id "03" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17176 :visit-id "03" :orbit-number 1 :pcs-time 443 :si-vis-utilization 2845 :al-overhead-at-end 0 :internal-dur-at-end 178 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3216 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17176 :visit-id "03" :orbit-number 2 :pcs-time 392 :si-vis-utilization 2846 :al-overhead-at-end 0 :internal-dur-at-end 582 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3216 :pcs-gap 0 ) true 2 2 g=14.1 from ASAS-SN brightest pixel: 0.2 cts/s brightest pixel: 0.2 cts/s 1712938572628 The scheduling data was generated by CASM 32.0. CASM was run in Phase II mode. /Users/gregoryh/Downloads/OP-cache/17176_20240412-v06.xml 1707977733000 40.0 (Tic-Visit :proposal-id 17176 :visit-id "06" :proposal-version -1 :trans-version "20230626" :date "12-Apr-2024 11:16:12.0" :trans-errors '(:WARNINGS 2 :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 925392 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17176 :visit-id "06" :obset-id "06" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17176 :visit-id "06" :orbit-number 1 :pcs-time 443 :si-vis-utilization 2787 :al-overhead-at-end 0 :internal-dur-at-end 178 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3159 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17176 :visit-id "06" :orbit-number 2 :pcs-time 392 :si-vis-utilization 2788 :al-overhead-at-end 0 :internal-dur-at-end 582 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3159 :pcs-gap 0 ) true 2 2 g=13.5 Saturation in 1.9 s, S/N=40 in 0.01 s g=13.3 0.34 cts/s in brightest pixel 0.34 cts/s in brightest pixel 1712938573549 The scheduling data was generated by CASM 32.0. CASM was run in Phase II mode. /Users/gregoryh/Downloads/OP-cache/17176_20240412-v07.xml 1680726184000 287.8222053764335 (Tic-Visit :proposal-id 17176 :visit-id "07" :proposal-version -1 :trans-version "20230626" :date "12-Apr-2024 11:16:13.0" :trans-errors '(:WARNINGS 2 :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 994976 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17176 :visit-id "07" :obset-id "07" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17176 :visit-id "07" :orbit-number 1 :pcs-time 443 :si-vis-utilization 2845 :al-overhead-at-end 0 :internal-dur-at-end 178 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3216 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17176 :visit-id "07" :orbit-number 2 :pcs-time 392 :si-vis-utilization 2846 :al-overhead-at-end 0 :internal-dur-at-end 582 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3216 :pcs-gap 0 ) true 2 2 g=13.6 Saturation in 2.1 s, S/N=40 in 0.01 s g=13.6 0.34 cts/s in brightest pixel 0.34 cts/s in brightest pixel 1712938575221 The scheduling data was generated by CASM 32.0. CASM was run in Phase II mode. /Users/gregoryh/Downloads/OP-cache/17176_20240412-v02.xml 1696729484000 273.0926988532424 (Tic-Visit :proposal-id 17176 :visit-id "02" :proposal-version -1 :trans-version "20230626" :date "12-Apr-2024 11:16:14.0" :trans-errors '(:WARNINGS 2 :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 1239552 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17176 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17176 :visit-id "02" :orbit-number 1 :pcs-time 443 :si-vis-utilization 2529 :al-overhead-at-end 0 :internal-dur-at-end 2428 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2913 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17176 :visit-id "02" :orbit-number 2 :pcs-time 392 :si-vis-utilization 2530 :al-overhead-at-end 0 :internal-dur-at-end 623 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2913 :pcs-gap 0 ) true 2 2 g=10.6 0.25s for S/N=40, 41s to saturation g=10.6 brightest pixel: 4.6 cts/s Source count rate: 650 cts/s ETC 1809000 V836 Tau COS spectrum as input Brightest pixel: 0.0145 cts/s (0.03 for FU Ori) Count rate entire detector: 285 s (geocoronal Ly-alpha), source is 7.7 cts/s (=> 15 cts/s for FU Ori) If flat spectrum: 0.02 cts/s in brightest pixel ETC 1808982 1712938576824 The scheduling data was generated by CASM 32.0. CASM was run in Phase II mode. /Users/gregoryh/Downloads/OP-cache/17176_20240412-v08.xml (Tic-Visit :proposal-id 17176 :visit-id "08" :proposal-version -1 :trans-version "20230626" :date "12-Apr-2024 11:16:16.0" :trans-errors '(:WARNINGS 5 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 5 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 1774720 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17176 :visit-id "08" :obset-id "08" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17176 :visit-id "08" :orbit-number 1 :pcs-time 443 :si-vis-utilization 2529 :al-overhead-at-end 0 :internal-dur-at-end 178 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2913 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17176 :visit-id "08" :orbit-number 2 :pcs-time 392 :si-vis-utilization 2530 :al-overhead-at-end 0 :internal-dur-at-end 316 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2913 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17176 :visit-id "08" :orbit-number 3 :pcs-time 392 :si-vis-utilization 2530 :al-overhead-at-end 0 :internal-dur-at-end 2478 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2913 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17176 :visit-id "08" :orbit-number 4 :pcs-time 392 :si-vis-utilization 2530 :al-overhead-at-end 0 :internal-dur-at-end 316 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2913 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17176 :visit-id "08" :orbit-number 5 :pcs-time 392 :si-vis-utilization 2530 :al-overhead-at-end 0 :internal-dur-at-end 578 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2913 :pcs-gap 0 ) true 5 5 g=10.6 0.25s for S/N=40, 41s to saturation Bghtest pixel: 0.01 cts/s Bghtest pixel: 0.01 cts/s Bghtest pixel: 0.01 cts/s Brightest pixel: 0.1 cts/s Source cts: 245 cts/s Bghtest pixel: 0.1 cts/s Source cts: 245 cts/s 1712938577510 The scheduling data was generated by CASM 32.0. CASM was run in Phase II mode. /Users/gregoryh/Downloads/OP-cache/17176_20240412-v09.xml 1693146359000 155.15662152379173 (Tic-Visit :proposal-id 17176 :visit-id "09" :proposal-version -1 :trans-version "20230626" :date "12-Apr-2024 11:16:17.0" :trans-errors '(:WARNINGS 1 :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 420928 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17176 :visit-id "09" :obset-id "09" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17176 :visit-id "09" :orbit-number 1 :pcs-time 443 :si-vis-utilization 2845 :al-overhead-at-end 0 :internal-dur-at-end 440 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3216 :pcs-gap 0 ) true 1 1 g=14.1 from ASAS-SN brightest pixel: 0.2 cts/s 1707267008985 The scheduling data was generated by CASM 32.0. CASM was run in Phase II mode. 1712381705000 279.8 (Tic-Visit :proposal-id 17176 :visit-id "10" :proposal-version -1 :trans-version "20230626" :date "06-Feb-2024 18:50:08.0" :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 925392 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17176 :visit-id "10" :obset-id "10" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17176 :visit-id "10" :orbit-number 1 :pcs-time 443 :si-vis-utilization 2773 :al-overhead-at-end 0 :internal-dur-at-end 178 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3216 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17176 :visit-id "10" :orbit-number 2 :pcs-time 392 :si-vis-utilization 2824 :al-overhead-at-end 0 :internal-dur-at-end 582 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3216 :pcs-gap 0 ) true 2 0 g=14.4 Saturation in 7 s, S/N=40 in 0.04 s g=14.4 0.15 cts/s in brightest pixel 0.15 cts/s in brightest pixel 1712938578477 The scheduling data was generated by CASM 32.0. CASM was run in Phase II mode. /Users/gregoryh/Downloads/OP-cache/17176_20240412-v11.xml (Tic-Visit :proposal-id 17176 :visit-id "11" :proposal-version -1 :trans-version "20230626" :date "12-Apr-2024 11:16:18.0" :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 925392 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17176 :visit-id "11" :obset-id "11" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17176 :visit-id "11" :orbit-number 1 :pcs-time 443 :si-vis-utilization 2773 :al-overhead-at-end 0 :internal-dur-at-end 178 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3216 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17176 :visit-id "11" :orbit-number 2 :pcs-time 392 :si-vis-utilization 2824 :al-overhead-at-end 0 :internal-dur-at-end 582 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3216 :pcs-gap 0 ) true 2 0 g=14.4 Saturation in 7 s, S/N=40 in 0.04 s g=14.4 0.15 cts/s in brightest pixel 0.15 cts/s in brightest pixel