copy visit 7 to 57 to repeat the visit lost in the safing. visibility interval added to compensate for the difference in overhead since submission ----- Attempting Submission 1 (Wed Jun 25 20:57:29 GMT 2008) ----- ----- Attempting Submission 2 (Mon Mar 23 13:50:49 GMT 2009) ----- ----- Attempting Submission 3 (Wed Oct 28 12:06:29 GMT 2009) ----- Phase II Proposal 11737 (11737.apt) successfully submitted. ----- Attempting Submission 4 (Wed Oct 28 12:22:46 GMT 2009) ----- Assigned ID: 185 ----- Attempting Submission 1 (Thu Mar 06 20:19:57 GMT 2008) ----- The Distance Dependence of the Interstellar N/O Abundance Ratio: A Gould Belt Influence? The degree of elemental abundance homogeneity in the interstellar medium is a function of the enrichment and mixing processes that govern Galactic chemical evolution. Observations of young stars and the interstellar gas within ~500 pc of the Sun have revealed a local ISM that is so well-mixed it is having an impact on ideas regarding the formation of extrasolar planets. However, the situation just beyond the local ISM is not so clear. Sensitive UV absorption line measurements have recently revealed a pattern of inhomogeneities in the interstellar O, N, and Kr gas-phase abundances at distances of ~500 pc and beyond that appear nucleosynthetic in origin rather than due to dust depletion. In particular, based on a sample of 13 sightlines, Knauth et al. (2006) have found that the nearby stars (d < 500 pc) exhibit a mean interstellar N/O abundance ratio that is significantly higher (0.18 dex) than that toward the more distant stars. Interestingly, all of their sightlines lie in the sky vicinity of the Gould Belt of OB associations, molecular clouds, and diffuse gas encircling the Sun at a distance of ~400 pc. Is it possible that mixing processes have not yet smoothed out the recent ISM enrichment by massive stars in the young Belt region? By measuring the interstellar N/O ratios in a strategic new sample of sightlines with STIS, we propose to test the apparent N/O homogeneity inside the Gould Belt and determine if the apparent decline in the N/O ratio with distance is robust and associated with the Belt region.
We propose to obtain STIS high-resolution spectra of the interstellar N I 1160, 1161 A absorption toward 14 stars in an effort to test the apparent homogeneity in the local ISM N/O abundance ratio and determine if the apparent decline in this ratio with distance is robust and associated with the Gould Belt. These particular stars are being targeted because: (1) they are among the brightest UV background sources with appreciable, well-measured O I column densities from previous STIS observations of the interstellar O I 1356 A line, (2) they sample a wide range in pathlength distance and sky location, and (3) they are all rapidly-rotating early-type stars suitable for UV interstellar absorption line studies. The target list includes the observational parameters for our N I targets including their UV fluxes at 1160 A based primarily upon low dispersion, large aperture IUE observations. The equivalent widths for the weaker line (1161 A) of the N I doublet have been estimated based on the O I column densities, the solar N/O ratio, and no line saturation. Since the interstellar gas-phase N/O values measured to date are either at or above the solar ratio, the measured N I 1161 A line strengths are likely to be comparable to or higher than these estimated equivalent widths. Although the presence of line saturation could lower these values a bit, it should not be a significant issue given the expected weakness (W < 10 mA) of these lines. The high-resolution N I profiles provided by the E140H R ~ 110,000 observations plus the curve-of-growth lever arm associated with the factor of 3.6 difference in the 1160 and 1161 A oscillator strengths will allow for straightforward corrections of the effects of any such saturation in arriving at accurate N I column densities. In terms of measuring the line strengths, the estimated equivalent widths form the basis of our desired spectral sensitivities in making the proposed N I observations. Specifically, utilizing the E140H grating centered at 1234 A and the 0.2 x 0.09 arc sec aperture, our sensitivity objective is to achieve net spectra with S/N ratios of at least 20 and thereby measure the N I 1161 A line strengths to an accuracy of at least 5 sigma. The net exposure times needed to meet this objective for each target were calculated from their UV fluxes using the STIS Spectroscopic Exposure Time Calculator. The number of HST orbits required for each target is based on these exposure times, the appropriate HST acquisition and STIS exposure overheads, and the targets' orbital visibilities. Ten of the targets will require only one orbit each (one of these CVZ) and the other four targets will need two orbits each. The resulting spectra will lead to 14 new measurements of the interstellar N/O ratio at a sensitivity greater than or equal to that of the sightlines in the Knauth et al. (2006) study. The bottom line is that we can achieve the scientific goals of this project with a total allocation of 18 HST orbits. ISM AND CIRCUMSTELLAR MATTER 12 false 0.0 0.0 false false false false false false SUPPORTED STAR B0-B2 III-I This object was generated by the targetselector and retrieved from the SIMBAD database. TYPE=B1III, E(B-V)=0.34, F(1160)=2.3E-11 J2000 12 29 9.5140 -60 48 17.55 J2000 STAR B3-B5 V-IV This object was generated by the targetselector and retrieved from the SIMBAD database. TYPE=B3V, E(B-V)=0.52, F(1160)=3.0E-11 J2000 16 25 24.2820 -23 27 36.79 J2000 STAR B3-B5 V-IV This object was generated by the targetselector and retrieved from the SIMBAD database. TYPE=B3V, E(B-V)=0.36, F(1160)=5.0E-11 J2000 11 28 18.4128 -72 28 26.32 J2000 STAR B0-B2 V-IV This object was generated by the targetselector and retrieved from the SIMBAD database. TYPE=B2V, E(B-V)=0.28, F(1160)=4.5E-11 J2000 03 52 18.9587 +34 13 19.60 J2000 STAR B0-B2 V-IV This object was generated by the targetselector and retrieved from the SIMBAD database. TYPE=B1.5V, E(B-V)=0.35, F(1160)=2.5E-11 J2000 05 41 38.3881 -02 15 32.48 J2000 STAR B0-B2 V-IV This object was generated by the targetselector and retrieved from the SIMBAD database. TYPE=B1V, E(B-V)=0.45, F(1160)=1.3E-10 J2000 05 35 31.3650 -05 16 2.58 J2000 STAR B0-B2 III-I This object was generated by the targetselector and retrieved from the SIMBAD database. TYPE=B0.5II, E(B-V)=0.18, F(1160)=1.3E-10 J2000 08 14 3.7990 -36 57 7.94 J2000 STAR MAIN SEQUENCE O This object was generated by the targetselector and retrieved from the SIMBAD database. TYPE=O9V, E(B-V)=0.28, F(1160)=8.0E-11 J2000 07 00 21.0763 -05 49 35.96 J2000 STAR B0-B2 V-IV This object was generated by the targetselector and retrieved from the SIMBAD database. TYPE=B0.5V, E(B-V)=0.50, F(1160)=2.4E-11 J2000 19 38 27.4827 +17 15 26.05 J2000 STAR GIANT O This object was generated by the targetselector and retrieved from the SIMBAD database. TYPE=O9III, E(B-V)=0.40, F(1160)=4.5E-11 J2000 18 06 4.6820 -24 11 43.89 J2000 STAR B0-B2 III-I This object was generated by the targetselector and retrieved from the SIMBAD database. TYPE=B0IA, E(B-V)=0.36, F(1160)=7.0E-11 J2000 14 06 25.1569 -59 42 57.26 J2000 STAR MAIN SEQUENCE O This object was generated by the targetselector and retrieved from the SIMBAD database. TYPE=O7V, E(B-V)=0.27, F(1160)=5.0E-11 J2000 10 34 46.6319 -58 09 22.04 J2000 STAR MAIN SEQUENCE O This object was generated by the targetselector and retrieved from the SIMBAD database. TYPE=O9V, E(B-V)=0.32, F(1160)=8.0E-11 J2000 21 07 55.4153 +33 23 49.24 J2000 STAR SUPERGIANT O This object was generated by the targetselector and retrieved from the SIMBAD database. TYPE=O9IB, E(B-V)=0.33, F(1160)=2.2E-11 J2000 22 11 38.6003 +52 25 47.95 J2000 STIS/FUV-MAMA Spectroscopic No No E140H 1234 STIS/FUV-MAMA Spectroscopic No No E140H 1234 STIS/FUV-MAMA Spectroscopic No No E140H 1234 STIS/FUV-MAMA Spectroscopic No No E140H 1234 STIS/FUV-MAMA Spectroscopic No No E140H 1234 STIS/FUV-MAMA Spectroscopic No No E140H 1234 STIS/FUV-MAMA Spectroscopic No No E140H 1234 STIS/FUV-MAMA Spectroscopic No No E140H 1234 STIS/FUV-MAMA Spectroscopic No No E140H 1234 STIS/FUV-MAMA Spectroscopic No No E140H 1234 STIS/FUV-MAMA Spectroscopic No No E140H 1234 STIS/FUV-MAMA Spectroscopic No No E140H 1234 STIS/FUV-MAMA Spectroscopic No No E140H 1234 STIS/FUV-MAMA Spectroscopic No No E140H 1234 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 11737 :visit-id "01" :proposal-version -1 :trans-version "20080609" :date "25-Jun-2008 15:46:54.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 174512 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11737 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :cvz T :proposal-id 11737 :visit-id "01" :orbit-number 1 :pcs-time 333 :si-vis-utilization 4934 :al-overhead-at-end 86 :internal-dur-at-end 396 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 0 :low-sky "N" :pcs-visibility 0 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. 1254509296000 100.2252777665326 (Tic-Visit :proposal-id 11737 :visit-id "02" :proposal-version -1 :trans-version "20080609" :date "25-Jun-2008 15:47:04.0" :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 244096 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11737 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11737 :visit-id "02" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2925 :al-overhead-at-end 0 :internal-dur-at-end 115 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3258 :pcs-gap 0 ) (Tic-Orbit :proposal-id 11737 :visit-id "02" :orbit-number 2 :pcs-time 195 :si-vis-utilization 3062 :al-overhead-at-end 0 :internal-dur-at-end 377 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3258 :pcs-gap 0 ) true 2 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 11737 :visit-id "03" :proposal-version -1 :trans-version "20080609" :date "25-Jun-2008 15:47:13.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 157104 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11737 :visit-id "03" :obset-id "03" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11737 :visit-id "03" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3324 :al-overhead-at-end 0 :internal-dur-at-end 377 :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 11737 :visit-id "04" :proposal-version -1 :trans-version "20080609" :date "25-Jun-2008 15:47:19.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 157104 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11737 :visit-id "04" :obset-id "04" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11737 :visit-id "04" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2950 :al-overhead-at-end 0 :internal-dur-at-end 377 :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 11737 :visit-id "05" :proposal-version -1 :trans-version "20080609" :date "25-Jun-2008 15:47:27.0" :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 244096 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11737 :visit-id "05" :obset-id "05" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11737 :visit-id "05" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2903 :al-overhead-at-end 0 :internal-dur-at-end 115 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3236 :pcs-gap 0 ) (Tic-Orbit :proposal-id 11737 :visit-id "05" :orbit-number 2 :pcs-time 195 :si-vis-utilization 3040 :al-overhead-at-end 0 :internal-dur-at-end 377 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3236 :pcs-gap 0 ) true 2 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 11737 :visit-id "06" :proposal-version -1 :trans-version "20080609" :date "25-Jun-2008 15:47:39.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 157104 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11737 :visit-id "06" :obset-id "06" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11737 :visit-id "06" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2908 :al-overhead-at-end 0 :internal-dur-at-end 377 :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. 1256286825000 275.8712261271288 (Tic-Visit :proposal-id 11737 :visit-id "07" :proposal-version -1 :trans-version "20080609" :date "25-Jun-2008 15:47:45.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 157104 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11737 :visit-id "07" :obset-id "07" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11737 :visit-id "07" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2976 :al-overhead-at-end 0 :internal-dur-at-end 377 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3310 :pcs-gap 0 ) false 1 0 /private/tmp/OPVisit2381339441413061561.xml copy of visit 7 lost during a safing (Tic-Visit :proposal-id 11737 :visit-id "57" :proposal-version -1 :trans-version "20090702" :date "28-Oct-2009 08:21:58.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 157104 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11737 :visit-id "57" :obset-id "57" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11737 :visit-id "57" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3091 :al-overhead-at-end 0 :internal-dur-at-end 377 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3600.0 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. 1255950351000 281.0454130613618 (Tic-Visit :proposal-id 11737 :visit-id "08" :proposal-version -1 :trans-version "20080609" :date "25-Jun-2008 15:47:50.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 157104 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11737 :visit-id "08" :obset-id "08" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11737 :visit-id "08" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2909 :al-overhead-at-end 0 :internal-dur-at-end 377 :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 11737 :visit-id "09" :proposal-version -1 :trans-version "20080609" :date "25-Jun-2008 15:47:57.0" :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 244096 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11737 :visit-id "09" :obset-id "09" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11737 :visit-id "09" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2924 :al-overhead-at-end 0 :internal-dur-at-end 115 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3257 :pcs-gap 0 ) (Tic-Orbit :proposal-id 11737 :visit-id "09" :orbit-number 2 :pcs-time 195 :si-vis-utilization 3062 :al-overhead-at-end 0 :internal-dur-at-end 377 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3257 :pcs-gap 0 ) true 2 0 The scheduling data was generated by CASM 17.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 11737 :visit-id "10" :proposal-version -1 :trans-version "20080609" :date "25-Jun-2008 15:48:03.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 157104 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11737 :visit-id "10" :obset-id "10" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11737 :visit-id "10" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2924 :al-overhead-at-end 0 :internal-dur-at-end 377 :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 11737 :visit-id "11" :proposal-version -1 :trans-version "20080609" :date "25-Jun-2008 15:48:09.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 157104 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11737 :visit-id "11" :obset-id "11" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11737 :visit-id "11" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3184 :al-overhead-at-end 0 :internal-dur-at-end 377 :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 11737 :visit-id "12" :proposal-version -1 :trans-version "20080609" :date "25-Jun-2008 15:48:14.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 157104 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11737 :visit-id "12" :obset-id "12" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11737 :visit-id "12" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3183 :al-overhead-at-end 0 :internal-dur-at-end 377 :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 11737 :visit-id "13" :proposal-version -1 :trans-version "20080609" :date "25-Jun-2008 15:48:20.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 157104 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11737 :visit-id "13" :obset-id "13" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11737 :visit-id "13" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2950 :al-overhead-at-end 0 :internal-dur-at-end 377 :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 11737 :visit-id "14" :proposal-version -1 :trans-version "20080609" :date "25-Jun-2008 15:48:28.0" :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 244096 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 11737 :visit-id "14" :obset-id "14" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 11737 :visit-id "14" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3120 :al-overhead-at-end 0 :internal-dur-at-end 115 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3453 :pcs-gap 0 ) (Tic-Orbit :proposal-id 11737 :visit-id "14" :orbit-number 2 :pcs-time 195 :si-vis-utilization 3258 :al-overhead-at-end 0 :internal-dur-at-end 377 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3453 :pcs-gap 0 ) true 2 0