Chilly Pairs: A Search for the Latest-type Brown Dwarf Binaries and the Prototype Y Dwarf

Chilly Pairs: A Search for the Latest-type Brown Dwarf Binaries and the Prototype Y Dwarf We propose to use HST/NICMOS to image a sample of 27 of the nearest (< 20 pc) and lowest luminosity T-type brown dwarfs in order to identify and characterize new very low mass binary systems. Only 3 late-type T dwarf binaries have been found to date, despite that fact that these systems are critical benchmarks for evolutionary and atmospheric models at the lowest masses. They are also the most likely systems to harbor Y dwarf companions, an as yet unpopulated putative class of very cold (T < 600 K) brown dwarfs. Our proposed program will more than double the number of T5-T9 dwarfs imaged at high resolution, with an anticipated yield of ~5 new binaries with initial characterization of component spectral types. We will be able to probe separations sufficient to identify systems suitable for astrometric orbit and dynamical mass measurements. We also expect one of our discoveries to contain the first Y-type brown dwarf. Our proposed program complements and augments ongoing ground-based adaptive optics surveys and provides pathway science for JWST.

We will obtain NICMOS NIC1 images of each T dwarf target using the F110W and F170M filters, which sample the spectral flux peak and 1.6 micron CH4 absorption band, respectively. F110W-F170M has been shown to be an excellent discriminator of spectral type for late-type T dwarfs. Sources will be observed for total integrations of ~900s and ~1500s in F110W and F170M, respectively, in a single orbit visit. Total integrations will be broken into multiaccum exposures with 3-6 dither positions (1"3 throw) in order to minimize the influence of bad pixels and enable sub-sampling of the PSF. Remaining visibility in each orbit will be used to obtain a short F090M exposure for background source discrimination (as described in the Experimental Design). Two sources (ULAS 0034-0052 and ULAS 1238+0953) will be observed in two orbits in order to probe deeper on these intrinsically fainter objects. Note that we have made the following substitutions in the Phase II program, which have been approved by the TTRB (Program Change Request no. 1518): Removed: CFBDS 0059-0114 (2 orbits): Delorme et al. (2008) have obtained LGS AO observations of this source for which our HST observations would not add significantly in depth 2MASS 0034+0523 (1 orbit): Co-I Liu has since acquired improved LGS AO observations of this source for which our HST observations would not add significantly in depth SDSS 1615+1340 (1 orbit): Co-I Liu has since acquired improved LGS AO observations of this source for which our HST observations would not add significantly in depth Added: ULAS 1238+0953 (T8.5, 2 orbits): Recently published in Buringham et al. (2008), cannot be done with LGS AO SDSS 0741+2351 (T5.5, 1 orbit): very poor LGS AO data obtained by Co-I Liu SDSS 1250+3925 (T4, 1 orbit): cannot be done with LGS AO Note that we have not yet acquired a proper motion measurement of 2MASS 2237+7228; we will attempt to obtain this prior to the scheduled observations. COOL STARS 12 false 0.0 0.0 false false false false false false SUPPORTED STAR BROWN DWARF T J=18.14; SpT=T8.5; d=19 J2000 00 34 2.7700 -00 52 6.70 J2000 STAR BROWN DWARF T J=16.16; SpT=T5; d=20 J2000 00 34 51.5700 +05 23 5.00 J2000 STAR BROWN DWARF T J=15.93; SpT=T7; d=9 J2000 00 50 19.9400 -33 22 40.20 J2000 STAR BROWN DWARF T J=18.78; SpT=T8.5; d=20 J2000 00 59 10.8300 -01 14 1.30 J2000 STAR BROWN DWARF T J=16.25; SpT=T5.5; d=16 J2000 03 25 53.2200 +04 25 40.60 J2000 STAR BROWN DWARF T J=16.06; SpT=T5; d=18 J2000 04 07 8.8500 +15 14 56.50 J2000 STAR BROWN DWARF T J=16.22; SpT=T5; d=20 J2000 05 10 35.2000 -42 08 14.00 J2000 STAR BROWN DWARF T J=15.60; SpT=T7; d=9 J2000 07 27 18.2400 +17 10 1.20 J2000 STAR BROWN DWARF T J=15.92; SpT=T8pec; d=7 J2000 07 29 0.0200 -39 54 4.30 J2000 STAR BROWN DWARF T J=15.98; SpT=T8; d=6 J2000 09 39 35.4800 -24 48 27.90 J2000 STAR BROWN DWARF T J=15.65; SpT=T5; d=16 J2000 10 07 33.6900 -45 55 14.70 J2000 STAR BROWN DWARF T J=15.86; SpT=T7.5; d=7 J2000 11 14 51.3300 -26 18 23.50 J2000 STAR BROWN DWARF T J=15.57; SpT=T5.5; d=11 J2000 12 31 47.5300 +08 47 33.10 J2000 STAR BROWN DWARF T J=16.00; SpT=T6.5; d=14 J2000 13 46 46.3400 -00 31 50.10 J2000 STAR BROWN DWARF T J=17.03; SpT=T7; d=14 J2000 15 04 11.5500 +10 27 19.50 J2000 STAR BROWN DWARF T J=16.50; SpT=T4: d=20 J2000 16 15 4.1300 +13 40 7.90 J2000 STAR BROWN DWARF T J=16.46; SpT=T7; d=10 J2000 16 28 38.5500 +23 08 24.10 J2000 STAR BROWN DWARF T J=15.80; SpT=T5; d=15 J2000 17 54 54.4000 +16 49 20.00 J2000 STAR BROWN DWARF T J=16.15; SpT=T6.5; d=12 J2000 17 58 5.4500 +46 33 9.90 J2000 STAR BROWN DWARF T J=15.18; SpT=T5.5; d=9 J2000 18 28 35.7200 -48 49 4.60 J2000 STAR BROWN DWARF T J=15.86; SpT=T5; d=14 J2000 19 01 6.0100 +47 18 13.60 J2000 STAR BROWN DWARF T J=16.03; SpT=T5; d=20 J2000 21 24 13.8700 +00 59 59.90 J2000 STAR BROWN DWARF T J=15.66; SpT=T6; d=12 J2000 21 54 33.1800 +59 42 18.70 J2000 STAR BROWN DWARF T J=15.66; SpT=T5; d=14 J2000 23 31 23.7800 -47 18 27.40 J2000 STAR BROWN DWARF T J=16.16; SpT=T8; d=6 J2000 23 59 40.3300 -73 35 5.30 J2000 STAR BROWN DWARF T J=16.16; SpT=T7.5; d=11 J2000 00 39 19.1000 +21 15 16.00 J2000 STAR BROWN DWARF T J=15.76; SpT=T6; d=13 J2000 22 37 20.5600 +72 28 35.10 J2000 NIC1 Imaging No No F110W NIC1 Imaging No No F170M NIC1 Imaging No No F110W NIC1 Imaging No No F170M NIC1 Imaging No No F110W NIC1 Imaging No No F170M NIC1 Imaging No No F110W NIC1 Imaging No No F170M NIC1 Imaging No No F110W NIC1 Imaging No No F170M NIC1 Imaging No No F110W NIC1 Imaging No No F170M NIC1 Imaging No No F110W NIC1 Imaging No No F170M NIC1 Imaging No No F110W NIC1 Imaging No No F170M NIC1 Imaging No No F110W NIC1 Imaging No No F170M NIC1 Imaging No No F110W NIC1 Imaging No No F170M NIC1 Imaging No No F110W NIC1 Imaging No No F170M NIC1 Imaging No No F110W NIC1 Imaging No No F170M NIC1 Imaging No No F110W NIC1 Imaging No No F170M NIC1 Imaging No No F110W NIC1 Imaging No No F170M NIC1 Imaging No No F110W NIC1 Imaging No No F170M NIC1 Imaging No No F110W NIC1 Imaging No No F170M NIC1 Imaging No No F110W NIC1 Imaging No No F170M NIC1 Imaging No No F110W NIC1 Imaging No No F170M NIC1 Imaging No No F110W NIC1 Imaging No No F170M NIC1 Imaging No No F110W NIC1 Imaging No No F170M NIC1 Imaging No No F110W NIC1 Imaging No No F170M NIC1 Imaging No No F110W NIC1 Imaging No No F170M NIC1 Imaging No No F110W NIC1 Imaging No No F170M NIC1 Imaging No No F110W NIC1 Imaging No No F170M NIC1 Imaging No No F110W NIC1 Imaging No No F170M NIC1 Imaging No No F110W NIC1 Imaging No No F170M NIC1 Imaging No No F110W NIC1 Imaging No No F170M POS-TARG DITHER 0.572 LINE false false 3 0 SPIRAL 1

false

POS-TARG DITHER 0.572 LINE 0.572 false false 74.653 4 18.528 WFC3-IR-DITHER-BOX-MIN 3

false

The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 11666 :visit-id "01" :proposal-version -1 :trans-version "20090130" :date "22-Apr-2009 15:13:38.0" :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 1522384 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11666 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11666 :visit-id "01" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2895 :al-overhead-at-end 0 :internal-dur-at-end 516 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3236 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. 1257727716000 278.792909405449 (Tic-Visit :proposal-id 11666 :visit-id "02" :proposal-version -1 :trans-version "20090130" :date "22-Apr-2009 15:14:00.0" :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 1525984 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11666 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11666 :visit-id "02" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2919 :al-overhead-at-end 0 :internal-dur-at-end 516 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3258 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 11666 :visit-id "03" :proposal-version -1 :trans-version "20090130" :date "22-Apr-2009 15:14:03.0" :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 1529584 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11666 :visit-id "03" :obset-id "03" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11666 :visit-id "03" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2940 :al-overhead-at-end 0 :internal-dur-at-end 516 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3283 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 11666 :visit-id "04" :proposal-version -1 :trans-version "20090130" :date "22-Apr-2009 15:14:06.0" :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 1522384 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11666 :visit-id "04" :obset-id "04" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11666 :visit-id "04" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2895 :al-overhead-at-end 0 :internal-dur-at-end 516 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3242 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 11666 :visit-id "05" :proposal-version -1 :trans-version "20090130" :date "22-Apr-2009 15:14:09.0" :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 1522384 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11666 :visit-id "05" :obset-id "05" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11666 :visit-id "05" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2895 :al-overhead-at-end 0 :internal-dur-at-end 516 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3236 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 11666 :visit-id "06" :proposal-version -1 :trans-version "20090130" :date "22-Apr-2009 15:14:11.0" :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 1525984 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11666 :visit-id "06" :obset-id "06" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11666 :visit-id "06" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2919 :al-overhead-at-end 0 :internal-dur-at-end 516 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3257 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 11666 :visit-id "07" :proposal-version -1 :trans-version "20090130" :date "22-Apr-2009 15:14:15.0" :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 1567408 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11666 :visit-id "07" :obset-id "07" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11666 :visit-id "07" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3000 :al-overhead-at-end 0 :internal-dur-at-end 516 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3351 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. 1257894587000 280.9953065582687 (Tic-Visit :proposal-id 11666 :visit-id "08" :proposal-version -1 :trans-version "20090130" :date "22-Apr-2009 15:14:17.0" :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 1525984 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11666 :visit-id "08" :obset-id "08" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11666 :visit-id "08" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2919 :al-overhead-at-end 0 :internal-dur-at-end 516 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3257 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 11666 :visit-id "09" :proposal-version -1 :trans-version "20090130" :date "22-Apr-2009 15:14:20.0" :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 1533184 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11666 :visit-id "09" :obset-id "09" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11666 :visit-id "09" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2961 :al-overhead-at-end 0 :internal-dur-at-end 516 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3310 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 11666 :visit-id "10" :proposal-version -1 :trans-version "20090130" :date "22-Apr-2009 15:14:22.0" :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 1525984 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11666 :visit-id "10" :obset-id "10" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11666 :visit-id "10" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2919 :al-overhead-at-end 0 :internal-dur-at-end 516 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3258 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 11666 :visit-id "11" :proposal-version -1 :trans-version "20090130" :date "22-Apr-2009 15:14:25.0" :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 1655040 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11666 :visit-id "11" :obset-id "11" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11666 :visit-id "11" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3311 :al-overhead-at-end 0 :internal-dur-at-end 497 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3658 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 11666 :visit-id "12" :proposal-version -1 :trans-version "20090130" :date "22-Apr-2009 15:14:28.0" :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 1525984 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11666 :visit-id "12" :obset-id "12" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11666 :visit-id "12" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2919 :al-overhead-at-end 0 :internal-dur-at-end 516 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3258 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 11666 :visit-id "13" :proposal-version -1 :trans-version "20090130" :date "22-Apr-2009 15:14:31.0" :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 1574608 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11666 :visit-id "13" :obset-id "13" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11666 :visit-id "13" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3045 :al-overhead-at-end 0 :internal-dur-at-end 516 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3398 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 11666 :visit-id "14" :proposal-version -1 :trans-version "20090130" :date "22-Apr-2009 15:14:33.0" :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 1525984 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11666 :visit-id "14" :obset-id "14" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11666 :visit-id "14" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2919 :al-overhead-at-end 0 :internal-dur-at-end 516 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3267 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 11666 :visit-id "15" :proposal-version -1 :trans-version "20090130" :date "22-Apr-2009 15:14:36.0" :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 1522384 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11666 :visit-id "15" :obset-id "15" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11666 :visit-id "15" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2895 :al-overhead-at-end 0 :internal-dur-at-end 516 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3242 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 11666 :visit-id "16" :proposal-version -1 :trans-version "20090130" :date "22-Apr-2009 15:14:40.0" :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 1522384 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11666 :visit-id "16" :obset-id "16" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11666 :visit-id "16" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2895 :al-overhead-at-end 0 :internal-dur-at-end 516 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3236 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 11666 :visit-id "17" :proposal-version -1 :trans-version "20090130" :date "22-Apr-2009 15:14:42.0" :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 1522384 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11666 :visit-id "17" :obset-id "17" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11666 :visit-id "17" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2895 :al-overhead-at-end 0 :internal-dur-at-end 516 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3251 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 11666 :visit-id "18" :proposal-version -1 :trans-version "20090130" :date "22-Apr-2009 15:14:45.0" :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 1533184 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11666 :visit-id "18" :obset-id "18" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11666 :visit-id "18" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2961 :al-overhead-at-end 0 :internal-dur-at-end 516 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3310 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 11666 :visit-id "19" :proposal-version -1 :trans-version "20090130" :date "22-Apr-2009 15:14:47.0" :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 1525984 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11666 :visit-id "19" :obset-id "19" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11666 :visit-id "19" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2919 :al-overhead-at-end 0 :internal-dur-at-end 516 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3258 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 11666 :visit-id "20" :proposal-version -1 :trans-version "20090130" :date "22-Apr-2009 15:14:51.0" :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 1525984 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11666 :visit-id "20" :obset-id "20" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11666 :visit-id "20" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2919 :al-overhead-at-end 0 :internal-dur-at-end 516 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3257 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 11666 :visit-id "21" :proposal-version -1 :trans-version "20090130" :date "22-Apr-2009 15:14:53.0" :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 1574608 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11666 :visit-id "21" :obset-id "21" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11666 :visit-id "21" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3045 :al-overhead-at-end 0 :internal-dur-at-end 516 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3398 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. 1257310265000 104.56773028918258 (Tic-Visit :proposal-id 11666 :visit-id "22" :proposal-version -1 :trans-version "20090130" :date "22-Apr-2009 15:14:56.0" :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 1574608 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11666 :visit-id "22" :obset-id "22" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11666 :visit-id "22" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3045 :al-overhead-at-end 0 :internal-dur-at-end 516 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3398 :pcs-gap 0 ) true 1 0 Copy of visit 22 which was scheduled to execute but failed due to a SI C&DH lockup. (Tic-Visit :proposal-id 11666 :visit-id "22" :proposal-version -1 :trans-version "20090130" :date "22-Apr-2009 15:14:56.0" :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 1574608 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11666 :visit-id "22" :obset-id "22" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11666 :visit-id "22" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3045 :al-overhead-at-end 0 :internal-dur-at-end 516 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3398 :pcs-gap 0 ) false 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 11666 :visit-id "23" :proposal-version -1 :trans-version "20090130" :date "22-Apr-2009 15:14:58.0" :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 1574608 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11666 :visit-id "23" :obset-id "23" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11666 :visit-id "23" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3045 :al-overhead-at-end 0 :internal-dur-at-end 516 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3398 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 11666 :visit-id "24" :proposal-version -1 :trans-version "20090130" :date "22-Apr-2009 15:15:02.0" :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 1522384 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11666 :visit-id "24" :obset-id "24" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11666 :visit-id "24" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2895 :al-overhead-at-end 0 :internal-dur-at-end 516 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3236 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 11666 :visit-id "25" :proposal-version -1 :trans-version "20090130" :date "22-Apr-2009 15:15:04.0" :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 1602816 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11666 :visit-id "25" :obset-id "25" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11666 :visit-id "25" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3161 :al-overhead-at-end 0 :internal-dur-at-end 478 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3517 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 11666 :visit-id "26" :proposal-version -1 :trans-version "20090130" :date "22-Apr-2009 15:15:07.0" :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 1574608 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11666 :visit-id "26" :obset-id "26" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11666 :visit-id "26" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3045 :al-overhead-at-end 0 :internal-dur-at-end 516 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3398 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. 1257109450000 35.74340345558929 (Tic-Visit :proposal-id 11666 :visit-id "27" :proposal-version -1 :trans-version "20090130" :date "22-Apr-2009 15:15:09.0" :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 1655040 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11666 :visit-id "27" :obset-id "27" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11666 :visit-id "27" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3311 :al-overhead-at-end 0 :internal-dur-at-end 497 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3658 :pcs-gap 0 ) true 1 0