0 Assigned ID: 865 ----- Attempting Submission 1 (Fri Mar 06 22:36:41 GMT 2020) ----- 0 ----- Attempting Submission 1 (Mon Jun 29 23:43:34 GMT 2020) ----- ----- Attempting Submission 2 (Mon Aug 24 18:08:33 GMT 2020) ----- HST Phase II Proposal 16243 successfully submitted. Receipt: # 16243-2 ----- Attempting Submission 3 (Mon Aug 24 23:57:18 GMT 2020) ----- HST Phase II Proposal 16243 successfully submitted. Receipt: # 16243-3 ----- Attempting Submission 4 (Tue Aug 25 23:15:04 GMT 2020) ----- Determining the low-mass cutoff for star formation With recent advances in the discovery of very low temperature brown dwarfs, we are now able to discern the shape of the low-mass end of the field mass function and define the low-mass cutoff itself. We propose to do this with a volume-limited (d < 20 pc) sample of the coldest known spectral types, Y dwarfs. Our multi-telescope campaign to obtain high-quality astrometry and photometry for this sample is well underway. HST is essential to complete the trigonometric measurement of parallaxes for the 14 faintest and coldest members of our sample. These are only accessible via HST. A combination of publicly available WISE and Spitzer data together with HST WFC3 F110W data will complete the distance and temperature determination for this sample. Having distances and temperatures for all of the coldest objects in the the Solar neighborhood provides an unprecedented look at the low-mass end of the mass function, and brings us one step closer to answering some of the most important questions in all of astrophysics: how can star formation create objects of extremely low mass? With what efficiency? Is there a low-mass cutoff to star formation? We seek to obtain high signal-to-noise-ratio F110W images for 14 cold brown dwarfs within 20pc of the Sun. The images will be used to supplement our Spitzer data to measure high-accuracy parallaxes. Our precision requirement is 3 mas, which ensures we will be able to measure parallaxes to a precision of 10% or better for all of the targets. We require either one or two visits per target, depending on the previous sampling of the parallsctic ellipse provided by Spitzer. For targets with Spitzer observations at each vertex of the parallactic ellipse, one HST visit at the vertex of the parallctic ellipse that is currently poorly sampled with Spitzer is sufficient. For targets with Spitzer observations at only one vertex of the parallactic ellipse, we need one HST visit at each vertex of the parallactic ellipse. HST visits must be scheduled within a 7-day window centered around the time of maximum parallax factor (i.e. the time when the target is at one vertex of the parallactic ellipse). While the ideal measurements would be taken at exactly maximum parallax factor, this would put excessive pressure on the scheduling. Kirkpatrick et al. (2019) found that relaxing timing constraints to within +-3.5 days of maximum parallax factor does not impact the accuracy and precision of the measured parallax, while at the same time significantly increases the schedulability of the observations. For 11 out of 14 targets, each visit consists of one WFC3-IR-DITHER-BOX-MIN pattern with the default parameters, to obtain a good pixel phase coverage, to compensate for the undersampling of the PSF in the F110W filter. Observations use the STEP100 sampling with NSAMP=12. The STEP100 sampling allows us to reach the desired signal-to-noise-ratio for our faint targets, while providing unsaturated reads for the brighter stars in the field which will be used for astrometric calibration. For the remaining three targets, each visit consists of one WFC3-IR-DITHER-BLOB pattern, with the WFC3-IR-DITHER-BOX-MIN as subpattern. The number of points in the WFC3-IR-DITHER-BLOB pattern depends on the time required to reach the desired signal-to-noise-ratio. The large offset between positions in the WFC3-IR-DITHER-BLOB pattern allows us to sample different parts of the astrometric distortion solution, averaging down known errors. Observations use the STEP100 sampling with NSAMP=12. PI Dr. Federico Marocco has extensive expertise in ground-based astrometric data reduction and analysis for cold brown dwarfs (e.g. Marocco et al. 2010, Marocco et al. 2013). He played a leading role in the development and quality assurance of the CatWISE Catalog, and the subsequent search and follow-up of cold Y dwarfs in the solar neighborhood (Marocco et al. 2019; 2020; also Meisner et al. 2020). He will be leading the data reduction, astrometric fitting, and analysis of the results. Dr. Peter Eisenhardt is the PI of the ADAP-funded CatWISE Catalog program. He provides insitutional representation on the proposal, contributed to target selection, and will assist with analysis and publication of the results. Dr. J. Davy Kirkpatrick is the PI of five Spitzer astrometric programs targeting the coldest brown dwarfs (program ID 90007, 13012, 14000, 14224, 14326), awarded a total of ~790 hours. Results from these programs have led to several publications, including Kirkpatrick et al. 2014 (ApJ, 783, 122), Martin et al. 2018 (ApJ, 867, 109), Kirkpatrick et al. 2019 (ApJS, 240, 19). He will play a leading role in observations planning, astrometric data reduction, and analysis of the mass function. Dan Caselden is a citizen scientist with applicable backgrounds in computer and data science. He co-created the WiseView visualization tool (http://byw.tools/wiseview-v2) used to vet targets for Backyard Worlds: Planet 9 and CatWISE. Prof. Michael C. Cushing was PI of a 125 hour large HST program to obtain NIR spectra of the first Y dwarfs (Kirkpatrick et al. 2013, Schneider et al. 2016) and is an expert in characterizing cool brown dwarfs. He will assist with analysis and publication of the results. Dr. Jacqueline K. Faherty is an expert in brown dwarf characterization studies. She is a co-founder of the citizen science project called Backyard Worlds: Planet 9, a CatWISE team member and the PI of a significant amount of Spitzer space telescope data that is critical to Y dwarf characterization studies. She will assist with analysis and publication of the results. Dr. Christopher R. Gelino has considerable experience with ground- and space-based photometry and brown dwarf multiplicity. He will assist with the photometry, the search for close companions, and the analysis and publication of the results. Dr. Marc Kuchner is the PI of the Backyard Worlds: Planet 9 citizen science project, the source of several of these targets. He will help communicate the findings of this project to citizen scientists and help them get involved in the analysis of this HST data if possible. Dr. Aaron Meisner is a CatWISE team member and Backyard Worlds co-founder. He was also the principal investigator of a Spitzer Cycle 14 program which represented a major early step toward defining the present proposal's sample of cold brown dwarf targets. Dr. Adam Schneider is an expert in characterizing the lowest-temperature brown dwarfs with HST (Schneider et al. 2015, 2016) and is a co-founder of the Backyard Worlds: Planet 9 citizen science project. He contributed to the target selection and observation planning, and will contribute to the analysis of the results. Prof. Edward L. Wright has more than 40 years of experience in space IR astronomy working on COBE, WMAP, Spitzer, and as the PI on WISE. He will contribute to the astrometric data reduction and publication of the results. Stellar Physics and Stellar Types 6 false false false false false false false false SUPPORTED STAR BROWN DWARF J2000 J2000 F110W ~ 23.8 mag STAR BROWN DWARF J2000 J2000 F110W ~ 23.6 mag STAR BROWN DWARF J2000 J2000 F110W ~ 22.6 mag STAR BROWN DWARF J2000 J2000 F110W ~ 22.3 mag STAR BROWN DWARF J2000 J2000 F110W ~ 23.8 mag STAR BROWN DWARF J2000 J2000 F110W ~ 22.6 mag STAR BROWN DWARF J2000 J2000 F110W ~ 24.4 mag STAR BROWN DWARF J2000 J2000 F110W ~ 22.2 mag STAR BROWN DWARF J2000 J2000 F110W ~ 25.1 mag STAR BROWN DWARF J2000 J2000 F110W ~ 21.8 mag STAR BROWN DWARF J2000 J2000 F110W ~ 24.8 mag STAR BROWN DWARF J2000 J2000 F110W ~ 21.8 mag STAR BROWN DWARF J2000 J2000 F110W ~ 21.3 mag STAR BROWN DWARF J2000 J2000 F110W ~ 23.9 mag WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F110W WFC3/IR Imaging No No F110W POS-TARG DITHER 0.572 LINE 0.365 false false 74.653 4 18.528 WFC3-IR-DITHER-BOX-MIN 1 false POS-TARG DITHER DITHER 4 5.183 WFC3-IR-DITHER-BOX-MIN true 74.653 true 0.365 0.572 3 41.859 POS-TARG WFC3-IR-DITHER-BLOB 18.528 2 true POS-TARG DITHER DITHER 4 5.183 WFC3-IR-DITHER-BOX-MIN true 74.653 true 0.365 0.572 5 41.859 POS-TARG WFC3-IR-DITHER-BLOB 18.528 3 true POS-TARG DITHER DITHER 4 5.183 WFC3-IR-DITHER-BOX-MIN true 74.653 true 0.365 0.572 4 41.859 POS-TARG WFC3-IR-DITHER-BLOB 18.528 4 true The scheduling data was generated by CASM 28.2. CASM was run in Phase II mode. 1610878156000 57.02983071493671 (Tic-Visit :proposal-id 16243 :visit-id "01" :proposal-version -1 :trans-version "20200518" :date "24-Aug-2020 09:54:44.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 905248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16243 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16243 :visit-id "01" :orbit-number 1 :pcs-time 383 :si-vis-utilization 2624 :al-overhead-at-end 0 :internal-dur-at-end 671 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3149 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 28.2. CASM was run in Phase II mode. 1613640997000 80.1233293108528 (Tic-Visit :proposal-id 16243 :visit-id "02" :proposal-version -1 :trans-version "20200518" :date "24-Aug-2020 09:54:44.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 905248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16243 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16243 :visit-id "02" :orbit-number 1 :pcs-time 383 :si-vis-utilization 2624 :al-overhead-at-end 0 :internal-dur-at-end 671 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3165 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 28.2. CASM was run in Phase II mode. 1604268526000 284.82920711324 (Tic-Visit :proposal-id 16243 :visit-id "03" :proposal-version -1 :trans-version "20200518" :date "24-Aug-2020 09:54:45.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 905248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16243 :visit-id "03" :obset-id "03" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16243 :visit-id "03" :orbit-number 1 :pcs-time 383 :si-vis-utilization 2624 :al-overhead-at-end 0 :internal-dur-at-end 671 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3333 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 28.2. CASM was run in Phase II mode. 1612944713000 20.291383809954397 (Tic-Visit :proposal-id 16243 :visit-id "04" :proposal-version -1 :trans-version "20200518" :date "24-Aug-2020 09:38:09.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 905248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16243 :visit-id "04" :obset-id "04" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16243 :visit-id "04" :orbit-number 1 :pcs-time 383 :si-vis-utilization 2624 :al-overhead-at-end 0 :internal-dur-at-end 671 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3145 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 28.2. CASM was run in Phase II mode. 1605280604000 285.84310255086257 (Tic-Visit :proposal-id 16243 :visit-id "05" :proposal-version -1 :trans-version "20200518" :date "24-Aug-2020 09:54:45.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 905248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16243 :visit-id "05" :obset-id "05" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16243 :visit-id "05" :orbit-number 1 :pcs-time 383 :si-vis-utilization 2624 :al-overhead-at-end 0 :internal-dur-at-end 671 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3333 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 28.2. CASM was run in Phase II mode. 1606664349000 285.7637999582358 (Tic-Visit :proposal-id 16243 :visit-id "06" :proposal-version -1 :trans-version "20200518" :date "24-Aug-2020 09:54:45.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 905248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16243 :visit-id "06" :obset-id "06" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16243 :visit-id "06" :orbit-number 1 :pcs-time 383 :si-vis-utilization 2624 :al-overhead-at-end 0 :internal-dur-at-end 671 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3333 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 28.2. CASM was run in Phase II mode. 1611189818000 286.7550190356219 (Tic-Visit :proposal-id 16243 :visit-id "09" :proposal-version -1 :trans-version "20200518" :date "24-Aug-2020 09:54:46.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 905248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16243 :visit-id "09" :obset-id "09" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16243 :visit-id "09" :orbit-number 1 :pcs-time 383 :si-vis-utilization 2624 :al-overhead-at-end 0 :internal-dur-at-end 671 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3238 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 28.2. CASM was run in Phase II mode. 1613003295000 284.0383932777571 (Tic-Visit :proposal-id 16243 :visit-id "11" :proposal-version -1 :trans-version "20200518" :date "24-Aug-2020 09:54:46.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 905248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16243 :visit-id "11" :obset-id "11" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16243 :visit-id "11" :orbit-number 1 :pcs-time 383 :si-vis-utilization 2624 :al-overhead-at-end 0 :internal-dur-at-end 671 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3149 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 28.2. 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CASM was run in Phase II mode. 1622326892000 247.98990318618917 (Tic-Visit :proposal-id 16243 :visit-id "14" :proposal-version -1 :trans-version "20200518" :date "24-Aug-2020 09:54:47.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 905248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16243 :visit-id "14" :obset-id "14" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16243 :visit-id "14" :orbit-number 1 :pcs-time 383 :si-vis-utilization 2624 :al-overhead-at-end 0 :internal-dur-at-end 671 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3149 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 28.2. 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CASM was run in Phase II mode. 1608601720000 70.0 (Tic-Visit :proposal-id 16243 :visit-id "17" :proposal-version -1 :trans-version "20200518" :date "24-Aug-2020 09:54:48.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 905248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16243 :visit-id "17" :obset-id "17" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16243 :visit-id "17" :orbit-number 1 :pcs-time 383 :si-vis-utilization 2624 :al-overhead-at-end 0 :internal-dur-at-end 671 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3285 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 28.2. CASM was run in Phase II mode. 1623871011000 251.18144017994206 (Tic-Visit :proposal-id 16243 :visit-id "18" :proposal-version -1 :trans-version "20200518" :date "24-Aug-2020 09:54:49.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 905248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16243 :visit-id "18" :obset-id "18" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16243 :visit-id "18" :orbit-number 1 :pcs-time 383 :si-vis-utilization 2624 :al-overhead-at-end 0 :internal-dur-at-end 671 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3285 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 29.2. CASM was run in Phase II mode. /private/var/folders/0b/qbp4bysx6vdbfxvp_xw3dyxw00023y/T/OPVisit3819869533653583725.xml (Tic-Visit :proposal-id 16243 :visit-id "Z6" :proposal-version -1 :trans-version "20210514" :date "24-Aug-2021 09:06:55.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 905248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16243 :visit-id "Z6" :obset-id "Z6" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16243 :visit-id "Z6" :orbit-number 1 :pcs-time 383 :si-vis-utilization 2624 :al-overhead-at-end 0 :internal-dur-at-end 671 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3200 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 29.2. CASM was run in Phase II mode. /private/var/folders/0b/qbp4bysx6vdbfxvp_xw3dyxw00023y/T/OPVisit7081242035060289365.xml (Tic-Visit :proposal-id 16243 :visit-id "Z8" :proposal-version -1 :trans-version "20210514" :date "24-Aug-2021 09:06:56.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 905248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16243 :visit-id "Z8" :obset-id "Z8" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16243 :visit-id "Z8" :orbit-number 1 :pcs-time 383 :si-vis-utilization 2624 :al-overhead-at-end 0 :internal-dur-at-end 671 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3285 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 28.2. CASM was run in Phase II mode. 1609593519000 278.59647493804636 (Tic-Visit :proposal-id 16243 :visit-id "07" :proposal-version -1 :trans-version "20200518" :date "24-Aug-2020 09:54:49.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 3 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 2715744 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16243 :visit-id "07" :obset-id "07" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16243 :visit-id "07" :orbit-number 1 :pcs-time 383 :si-vis-utilization 2624 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3525 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16243 :visit-id "07" :orbit-number 2 :pcs-time 392 :si-vis-utilization 2624 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3525 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16243 :visit-id "07" :orbit-number 3 :pcs-time 392 :si-vis-utilization 2624 :al-overhead-at-end 0 :internal-dur-at-end 690 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3525 :pcs-gap 0 ) true 3 0 The scheduling data was generated by CASM 29.2. CASM was run in Phase II mode. /private/var/folders/0b/qbp4bysx6vdbfxvp_xw3dyxw00023y/T/OPVisit9407463692333541078.xml (Tic-Visit :proposal-id 16243 :visit-id "08" :proposal-version -1 :trans-version "20210514" :date "24-Aug-2021 09:06:57.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 3 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 2715744 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16243 :visit-id "08" :obset-id "08" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16243 :visit-id "08" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2624 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3525 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16243 :visit-id "08" :orbit-number 2 :pcs-time 392 :si-vis-utilization 2624 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3525 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16243 :visit-id "08" :orbit-number 3 :pcs-time 392 :si-vis-utilization 2624 :al-overhead-at-end 0 :internal-dur-at-end 690 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3525 :pcs-gap 0 ) true 3 0 The scheduling data was generated by CASM 28.2. CASM was run in Phase II mode. 1612270714000 287.1478141818428 (Tic-Visit :proposal-id 16243 :visit-id "10" :proposal-version -1 :trans-version "20200518" :date "24-Aug-2020 09:54:52.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 5 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 4526240 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16243 :visit-id "10" :obset-id "10" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16243 :visit-id "10" :orbit-number 1 :pcs-time 383 :si-vis-utilization 2624 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3157 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16243 :visit-id "10" :orbit-number 2 :pcs-time 392 :si-vis-utilization 2624 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3157 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16243 :visit-id "10" :orbit-number 3 :pcs-time 392 :si-vis-utilization 2624 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3157 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16243 :visit-id "10" :orbit-number 4 :pcs-time 392 :si-vis-utilization 2624 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3157 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16243 :visit-id "10" :orbit-number 5 :pcs-time 392 :si-vis-utilization 2624 :al-overhead-at-end 0 :internal-dur-at-end 690 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3157 :pcs-gap 0 ) true 5 0 The scheduling data was generated by CASM 28.2. CASM was run in Phase II mode. 1606262043000 73.74725943414239 (Tic-Visit :proposal-id 16243 :visit-id "12" :proposal-version -1 :trans-version "20200518" :date "24-Aug-2020 09:54:54.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 4 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 3620992 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16243 :visit-id "12" :obset-id "12" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16243 :visit-id "12" :orbit-number 1 :pcs-time 383 :si-vis-utilization 2624 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3165 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16243 :visit-id "12" :orbit-number 2 :pcs-time 392 :si-vis-utilization 2624 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3165 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16243 :visit-id "12" :orbit-number 3 :pcs-time 392 :si-vis-utilization 2624 :al-overhead-at-end 0 :internal-dur-at-end 0 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3165 :pcs-gap 0 ) (Tic-Orbit :proposal-id 16243 :visit-id "12" :orbit-number 4 :pcs-time 392 :si-vis-utilization 2624 :al-overhead-at-end 0 :internal-dur-at-end 690 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3165 :pcs-gap 0 ) true 4 0