0 Assigned ID: 425 ----- Attempting Submission 1 (Fri Apr 11 11:04:43 GMT 2014) ----- HST Phase I Proposal 425 (L16.apt) successfully submitted. ----- Attempting Submission 2 (Fri Apr 11 19:06:00 GMT 2014) ----- The number of orbits used exceeds the number allocated This target is not used in this proposal. 0 ----- Attempting Submission 1 (Tue Jul 22 08:00:19 GMT 2014) ----- The two warnig are for the following reason. 1) target LUHMAN16AB is not used, but it gives the true position of the objects at epoch 2014-02-14, the used targets instead are only auxiliary targets, which combined with WFC3/UVIS apertures place optimally the FIELD at every given epoch. 2) the second warning, is because we included also the two epochs scheduled for Cycle 23. We think it is important, for completeness to keep all the visits epochs in the same place, useful to the STScI reviers but also for the observers, as even if the last epochs will not be scheduled during Cy22, it will keep a record of their precise plannings. Astrometric search for Planets in the closest Brown Dwarf Binary system Luhman 16AB Located at 2.0 pc, the L8+T1 dwarfs system Luhman16AB is the third closest system known to Earth, making it a key benchmark for detailed investigation of brown dwarf atmospheric properties, thermal evolution, multiplicity and planet-hosting frequency. Indeed, a recent ground-based astrometric campaign suggested this system to host a 5-30 Jupiter masses exoplanet. We propose to use HST in spatial-scanning mode to obtain the most accurate annual parallax of any brown dwarf to date, achieving an unprecedented accuracy of 1 part in 10000 (50 micro-arcsecond) for each of the two components of Luh16, and to constrain their absolute space motions with similar accuracy. Most importantly, we will be able to confirm the giant planet candidate and to search for faint companions co-moving with the targets, either resolved or through astrometric perturbations of the A-B orbital motion, the latter probing down to few Earth-masses. Present-day ground-based direct imaging and AO facilities have fundamental limitations (field of view, PSF stability, differential chromatic effects, visibility) which introduce systematic and seasonal errors that are hard to quantify, and which have already resulted many times in clamorous false alarm in the recent past. This is particularly true for faint and red objects. Luhman 16A and B will be problematic for GAIA (faint, color, crowding, visibility), and the here proposed HST spatial-scanning mode observations will actually be an important complementary validation of the final GAIA catalog itself (expected 2020). Similarly, JWST is not expected to provide any better astrometry than HST because of its broader and irregular PSFs. Each visit is scheduled in a 4-10 days window, centered at a well defined epoch. These epochs are choose as to better constraints the maxima elongation along the major and minor axis of the annual parallax of Luh16AB, its proper motions, the cusp and curve of the resulting cycloid combined motions, and to sample presence of possible extrasolar planets with periods between ~15 days and ~6months. Three epochs are taken at the maxima elongation along the annual parallax semi-major axis. Five epochs at the maxima elongations along the semi-minor axis of the annual parallax. Three epochs are taken at the cycloid (pms+annaual annual parallax) curles of the Luh16AB proper motions (visits labeled "ricciolo"), and two epochs at the bottom of the cycloid motion (visits labeled "pancia"). For total of 3+5+3+2 = 13 epochs. Eleven of these epochs should be taken within Cycle 22, and the last two within Cycle 23. The first epoch should be taken as early as possible (this should be in this August 29th, 2014). Each epoch contains three images in point source imaging mode, and four in spatial-scanning mode with WFC3/UVIS. In addition to the images taken in spatial scan mode and to the short two point-source images at the beginning and at the end of the single orbit-visits --- as requested at the phase I stage --- it turned out possible to fit in the orbit one extra point source images of 348s in F606W. The color information will be a precious to discriminate the nature (and so the distance) of the reference sources in the field (for example to separate slow close by red dwarf from far away giants). EXTRA-SOLAR PLANETS Default false false false false false SUPPORTED STAR BROWN DWARF We have mapped the relative path of Luhman 16AB between 2014 and 2016 J2000 J2000 Sloan-i = 15 +/- .5 STAR BROWN DWARF We have mapped the relative path of Luhman 16AB between 2014 and 2016 J2000 J2000 Sloan-i = 15 +/- .5 STAR BROWN DWARF We have mapped the relative path of Luhman 16AB between 2014 and 2016 J2000 J2000 Sloan-i = 15 +/- .5 STAR BROWN DWARF We have mapped the relative path of Luhman 16AB between 2014 and 2016 J2000 J2000 Sloan-i = 15 +/- .5 STAR BROWN DWARF We have mapped the relative path of Luhman 16AB between 2014 and 2016 J2000 J2000 Sloan-i = 15 +/- .5 STAR BROWN DWARF We have mapped the relative path of Luhman 16AB between 2014 and 2016 J2000 J2000 Sloan-i = 15 +/- .5 WFC3/UVIS Imaging No No F814W /home/bedin/Cycle22/GO/Luhman16AB/PhII/OP-cache/Luh16AB_ph2-v01.xml The scheduling data was generated by CASM 22.2. CASM was run in Phase II mode. Epoch 2015-07-09. This is the epoch is taken at the maximum NW-elongation in the major axis of the annual parallax (AP). The epoch must be around 2015-07-09 +/- 15 days Then we want to scan perpendicularly to the major axis. ORIENTATION = ~ 0d or ~180d +/- 35d main SCAN along Y, where CTE are worse, so SCAN ORIENT. secondary SCAN along X. A suitalbe window seems to be between 2 July 2015 and and 16 July 2016. The closer to the July 9th, the better. (Tic-Visit :proposal-id 13748 :visit-id "01" :proposal-version -1 :trans-version "20140605" :date "15-Jul-2014 11:26:39.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 2021248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 13748 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 13748 :visit-id "01" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3076 :al-overhead-at-end 125 :internal-dur-at-end 668 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3409 :pcs-gap 0 ) true 1 0 /home/bedin/Cycle22/GO/Luhman16AB/PhII/OP-cache/Luh16AB_ph2-v02.xml The scheduling data was generated by CASM 22.2. CASM was run in Phase II mode. Epoch 2015-01-04. This is the epoch is taken at the maximum SE-elongation in the major axis of the annual parallax (AP). The epococh must be around 2015-01-04 +/- 15 days Then we want to scan perpendicularly to the major axis. ORIENTATION = ~ 0d or ~180d +/- 35d main SCAN along Y, where CTE are worse, so SCAN ORIENT. secondary SCAN along X. A suitalbe window seems to be between 1 Jan 2014 and and 8 Jan 2015. The closer to the Jan 4th, the better. (Tic-Visit :proposal-id 13748 :visit-id "02" :proposal-version -1 :trans-version "20140605" :date "15-Jul-2014 11:26:42.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 2021248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 13748 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 13748 :visit-id "02" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2819 :al-overhead-at-end 125 :internal-dur-at-end 668 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3409 :pcs-gap 0 ) true 1 0 /home/bedin/Cycle22/GO/Luhman16AB/PhII/OP-cache/Luh16AB_ph2-v03.xml The scheduling data was generated by CASM 22.2. CASM was run in Phase II mode. Epoch 2016-01-04. This is the epoch is taken at the maximum SE-elongation in the major axis of the annual parallax (AP). The epococh must be around 2016-01-04 +/- 25 days Then we want to scan perpendicularly to the major axis. ORIENTATION = ~ 0d or ~180d +/- 35d main SCAN along Y, where CTE are worse, so SCAN ORIENT. secondary SCAN along X. A suitalbe window seems to be between 15 Dec 2015 and 4 Feb 2016. The closer to the Jan 4th, the better. (Tic-Visit :proposal-id 13748 :visit-id "03" :proposal-version -1 :trans-version "20140605" :date "15-Jul-2014 11:26:45.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 2021248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 13748 :visit-id "03" :obset-id "03" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 13748 :visit-id "03" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2819 :al-overhead-at-end 125 :internal-dur-at-end 668 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3409 :pcs-gap 0 ) true 1 0 /home/bedin/Cycle22/GO/Luhman16AB/PhII/OP-cache/Luh16AB_ph2-v04.xml The scheduling data was generated by CASM 22.2. CASM was run in Phase II mode. Epoch 2014-10-06. This is the epoch is taken at the minimum NE-elongation in the minor axis of the annual parallax (AP). The epococh must be around 2014-10-06 +/- 25 days Then we want to scan perpendicularly to the minor axis. ORIENTATION = ~ 90d or ~270d +/- 35d main SCAN along Y, where CTE are worse, so SCAN ORIENT. secondary SCAN along X. A suitalbe window seems to be between 28 September 2014 and 15 Oct 2014. The closer to the Oct 6th, the better. (Tic-Visit :proposal-id 13748 :visit-id "04" :proposal-version -1 :trans-version "20140605" :date "15-Jul-2014 11:26:47.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 2021248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 13748 :visit-id "04" :obset-id "04" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 13748 :visit-id "04" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2819 :al-overhead-at-end 125 :internal-dur-at-end 668 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3409 :pcs-gap 0 ) true 1 0 /home/bedin/Cycle22/GO/Luhman16AB/PhII/OP-cache/Luh16AB_ph2-v05.xml The scheduling data was generated by CASM 22.2. CASM was run in Phase II mode. Epoch 2015-10-06. This is the epoch is taken at the minimum NE-elongation in the minor axis of the annual parallax (AP). The epococh must be around 2015-10-06 +/- 25 days Then we want to scan perpendicularly to the minor axis. ORIENTATION = ~ 90d or ~270d +/- 35d main SCAN along Y, where CTE are worse, so SCAN ORIENT. secondary SCAN along X. A suitalbe window seems to be between 28 September 2015 and 15 Oct 2015. The closer to the Oct 6th, the better. (Tic-Visit :proposal-id 13748 :visit-id "05" :proposal-version -1 :trans-version "20140605" :date "15-Jul-2014 11:26:49.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 2021248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 13748 :visit-id "05" :obset-id "05" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 13748 :visit-id "05" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3026 :al-overhead-at-end 125 :internal-dur-at-end 668 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3409 :pcs-gap 0 ) true 1 0 /home/bedin/Cycle22/GO/Luhman16AB/PhII/OP-cache/Luh16AB_ph2-v06.xml The scheduling data was generated by CASM 22.2. CASM was run in Phase II mode. Epoch 2016-10-05. This is the epoch is taken at the minimum NE-elongation in the minor axis of the annual parallax (AP). The epococh must be around 2016-10-05 +/- 25 days Then we want to scan perpendicularly to the minor axis. ORIENTATION = ~ 90d or ~270d +/- 35d main SCAN along Y, where CTE are worse, so SCAN ORIENT. secondary SCAN along X. A suitalbe window seems to be between 28 September 2015 and 15 Oct 2016. The closer to the Oct 5th 2016, the better. (Tic-Visit :proposal-id 13748 :visit-id "06" :proposal-version -1 :trans-version "20140605" :date "15-Jul-2014 11:26:51.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 2021248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 13748 :visit-id "06" :obset-id "06" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 13748 :visit-id "06" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2819 :al-overhead-at-end 125 :internal-dur-at-end 668 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3409 :pcs-gap 0 ) true 1 0 /home/bedin/Cycle22/GO/Luhman16AB/PhII/OP-cache/Luh16AB_ph2-v07.xml The scheduling data was generated by CASM 22.2. CASM was run in Phase II mode. Epoch 2015-04-07. This is the epoch is taken at the minimum SW-elongation in the minor axis of the annual parallax (AP). The epococh must be around 2015-04-07 +/- 25 days Then we want to scan perpendicularly to the minor axis. ORIENTATION = ~ 90d or ~270d +/- 35d main SCAN along Y, where CTE are worse, so SCAN ORIENT. secondary SCAN along X. A suitalbe window seems to be between 1 April 2015 and 15 April 2015. The closer to the Apr 7th 2015, the better. (Tic-Visit :proposal-id 13748 :visit-id "07" :proposal-version -1 :trans-version "20140605" :date "15-Jul-2014 11:26:53.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 2021248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 13748 :visit-id "07" :obset-id "07" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 13748 :visit-id "07" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2819 :al-overhead-at-end 125 :internal-dur-at-end 668 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3409 :pcs-gap 0 ) true 1 0 /home/bedin/Cycle22/GO/Luhman16AB/PhII/OP-cache/Luh16AB_ph2-v08.xml The scheduling data was generated by CASM 22.2. CASM was run in Phase II mode. Epoch 2016-04-07. This is the epoch is taken at the minimum SW-elongation in the minor axis of the annual parallax (AP). The epococh must be around 2016-04-07 +/- 25 days Then we want to scan perpendicularly to the minor axis. ORIENTATION = ~ 90d or ~270d +/- 35d main SCAN along Y, where CTE are worse, so SCAN ORIENT. secondary SCAN along X. A suitalbe window seems to be between 1 April 2016 and 15 April 2015. The closer to the Apr 7th 2015, the better. (Tic-Visit :proposal-id 13748 :visit-id "08" :proposal-version -1 :trans-version "20140605" :date "15-Jul-2014 11:26:55.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 2021248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 13748 :visit-id "08" :obset-id "08" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 13748 :visit-id "08" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2819 :al-overhead-at-end 125 :internal-dur-at-end 668 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3409 :pcs-gap 0 ) true 1 0 /home/bedin/Cycle22/GO/Luhman16AB/PhII/OP-cache/Luh16AB_ph2-v09.xml The scheduling data was generated by CASM 22.2. CASM was run in Phase II mode. Epoch 2014-08-29. This is the epoch is taken at the ricciolo of the cycloid apparent motion. The epoch must be around 2014-08-29 +/- 15 days main SCAN along Y, where CTE are worse, so SCAN ORIENT. secondary SCAN along X. (Tic-Visit :proposal-id 13748 :visit-id "09" :proposal-version -1 :trans-version "20140605" :date "15-Jul-2014 11:10:18.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 2021248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 13748 :visit-id "09" :obset-id "09" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 13748 :visit-id "09" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2819 :al-overhead-at-end 125 :internal-dur-at-end 668 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3409 :pcs-gap 0 ) true 1 0 /home/bedin/Cycle22/GO/Luhman16AB/PhII/OP-cache/Luh16AB_ph2-v10.xml The scheduling data was generated by CASM 22.2. CASM was run in Phase II mode. Epoch 2015-08-29. This is the epoch is taken at the ricciolo of the cycloid apparent motion. The epoch must be around 2015-08-29 +/- 15 days main SCAN along Y, where CTE are worse, so SCAN ORIENT. secondary SCAN along X. (Tic-Visit :proposal-id 13748 :visit-id "10" :proposal-version -1 :trans-version "20140605" :date "15-Jul-2014 11:10:20.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 2021248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 13748 :visit-id "10" :obset-id "10" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 13748 :visit-id "10" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2819 :al-overhead-at-end 125 :internal-dur-at-end 668 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3409 :pcs-gap 0 ) true 1 0 /home/bedin/Cycle22/GO/Luhman16AB/PhII/OP-cache/Luh16AB_ph2-v11.xml The scheduling data was generated by CASM 22.2. CASM was run in Phase II mode. Epoch 2016-08-29. This is the epoch is taken at the ricciolo of the cycloid apparent motion. The epoch must be around 2016-08-29 +/- 15 days main SCAN along Y, where CTE are worse, so SCAN ORIENT. secondary SCAN along X. (Tic-Visit :proposal-id 13748 :visit-id "11" :proposal-version -1 :trans-version "20140605" :date "15-Jul-2014 11:10:23.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 2021248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 13748 :visit-id "11" :obset-id "11" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 13748 :visit-id "11" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2819 :al-overhead-at-end 125 :internal-dur-at-end 668 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3409 :pcs-gap 0 ) true 1 0 /home/bedin/Cycle22/GO/Luhman16AB/PhII/OP-cache/Luh16AB_ph2-v12.xml The scheduling data was generated by CASM 22.2. CASM was run in Phase II mode. Epoch 2015-02-11. This is the epoch is taken at the pancia of the cycloid apparent motion. The epoch must be around 2015-02-11 +/- 15 days. main SCAN along Y, where CTE are worse, so SCAN ORIENT. secondary SCAN along X. (Tic-Visit :proposal-id 13748 :visit-id "12" :proposal-version -1 :trans-version "20140605" :date "15-Jul-2014 11:10:25.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 2021248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 13748 :visit-id "12" :obset-id "12" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 13748 :visit-id "12" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2819 :al-overhead-at-end 125 :internal-dur-at-end 668 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3409 :pcs-gap 0 ) true 1 0 /home/bedin/Cycle22/GO/Luhman16AB/PhII/OP-cache/Luh16AB_ph2-v13.xml The scheduling data was generated by CASM 22.2. CASM was run in Phase II mode. Epoch 2016-02-11. This is the epoch is taken at the pancia of the cycloid apparent motion. The epoch must be around 2016-02-11 +/- 15 days. main SCAN along Y, where CTE are worse, so SCAN ORIENT. secondary SCAN along X. (Tic-Visit :proposal-id 13748 :visit-id "13" :proposal-version -1 :trans-version "20140605" :date "15-Jul-2014 11:10:27.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 2021248 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 13748 :visit-id "13" :obset-id "13" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 13748 :visit-id "13" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2819 :al-overhead-at-end 125 :internal-dur-at-end 668 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3409 :pcs-gap 0 ) true 1 0