0 Assigned ID: 745 ----- Attempting Submission 1 (Fri Apr 07 18:58:19 GMT 2017) ----- HST Phase I Proposal 745 (cycle25_PCEB.apt) successfully submitted. Receipt: # 745-1 ----- Attempting Submission 2 (Fri Apr 07 19:22:09 GMT 2017) ----- For the best data quality, it is strongly recommended that the maximum number of allowed FP-POS positions is used when observing at a given COS CENWAVE setting. See full description for details. INEFFICIENT ORDERING OF FP-POS POSITIONS For the best data quality, it is strongly recommended that the maximum number of allowed FP-POS positions is used when observing at a given COS CENWAVE setting. See full description for details. INEFFICIENT ORDERING OF FP-POS POSITIONS For the best data quality, it is strongly recommended that the maximum number of allowed FP-POS positions is used when observing at a given COS CENWAVE setting. See full description for details. INEFFICIENT ORDERING OF FP-POS POSITIONS For the best data quality, it is strongly recommended that the maximum number of allowed FP-POS positions is used when observing at a given COS CENWAVE setting. See full description for details. INEFFICIENT ORDERING OF FP-POS POSITIONS For the best data quality, it is strongly recommended that the maximum number of allowed FP-POS positions is used when observing at a given COS CENWAVE setting. See full description for details. INEFFICIENT ORDERING OF FP-POS POSITIONS For the best data quality, it is strongly recommended that the maximum number of allowed FP-POS positions is used when observing at a given COS CENWAVE setting. See full description for details. INEFFICIENT ORDERING OF FP-POS POSITIONS For the best data quality, it is strongly recommended that the maximum number of allowed FP-POS positions is used when observing at a given COS CENWAVE setting. See full description for details. INEFFICIENT ORDERING OF FP-POS POSITIONS For the best data quality, it is strongly recommended that the maximum number of allowed FP-POS positions is used when observing at a given COS CENWAVE setting. See full description for details. INEFFICIENT ORDERING OF FP-POS POSITIONS For the best data quality, it is strongly recommended that the maximum number of allowed FP-POS positions is used when observing at a given COS CENWAVE setting. See full description for details. INEFFICIENT ORDERING OF FP-POS POSITIONS For the best data quality, it is strongly recommended that the maximum number of allowed FP-POS positions is used when observing at a given COS CENWAVE setting. See full description for details. INEFFICIENT ORDERING OF FP-POS POSITIONS For the best data quality, it is strongly recommended that the maximum number of allowed FP-POS positions is used when observing at a given COS CENWAVE setting. See full description for details. INEFFICIENT ORDERING OF FP-POS POSITIONS 0 ----- Attempting Submission 1 (Thu Jul 20 11:52:00 GMT 2017) ----- HST Phase II Proposal 15189 (pceb_15189_phaseII.apt) successfully submitted. Receipt: # 15189-1 ----- Attempting Submission 2 (Thu Jul 20 17:50:54 GMT 2017) ----- HST Phase II Proposal 15189 (pceb_15189_phaseII.apt) successfully submitted. Receipt: # 15189-2 ----- Attempting Submission 3 (Wed Sep 27 16:34:49 GMT 2017) ----- HST Phase II Proposal 15189 (2FPOS_pceb_15189_phaseII.apt) successfully submitted. Receipt: # 15189-3 ----- Attempting Submission 4 (Fri Sep 29 15:36:18 GMT 2017) ----- HST Phase II Proposal 15189 (2FPOS_pceb_15189_phaseII.apt) successfully submitted. Receipt: # 15189-4 ----- Attempting Submission 5 (Wed Oct 18 14:24:22 GMT 2017) ----- Warnings are due to FP-POS choices Post Common Envelope Binaries as probes of M dwarf stellar wind and habitable zone radiation environments M dwarf stars are promising targets in the search for extrasolar habitable planets, as their small size and close-in habitable zones make the detection of Earth-analog planets easier than at Solar-type stars. However, the effects of the high stellar activity of M dwarf hosts has uncertain effects on such planets, and may render them uninhabitable. Studying stellar activity at M dwarfs is hindered by a lack of measurements of high-energy radiation, flare activity and, in particular, stellar wind rates. We propose to rectify this by observing a sample of Post Common Envelope Binaries (PCEBs) with HST and XMM-Newton. PCEBs consist of an M dwarf with a white dwarf companion, which experiences the same stellar wind and radiation environment as a close-in planet. The stellar wind of the M dwarf accretes onto the otherwise pure hydrogen atmosphere white dwarf, producing metal lines detectable with ultraviolet spectroscopy. The metal lines can be used to measure accretion rates onto the white dwarf, from with we can accurately infer the stellar wind mass loss rate of the M dwarf, along with abundances of key elements. Simultaneous observations with XMM-Newton will probe X-ray flare occurrence rate and strength, in addition to coronal temperatures. Performing these measurements over twelve PCEBs will provide a sample of M dwarf stellar wind strengths, flare occurrence and X-ray/UV activity that will finally shed light on the true habitability of planets around small stars. The scientific goal of the proposed observations is to obtain high-quality high-resolution FUV spectroscopy of the white dwarfs in thirteen post-common envelope binaries. Instrument setup: We will observe all stars using COS with the G130M grating with the new central wavelength of 1223A, with the exception of BPM6502, which is too bright for COS, and will be observed using STIS with the E140M grating. We will use all four FP-POS positions to minimize the impact of fixed pattern noise. For the COS observations, the acquisitions will be carried out in dispersed light, the STIS observation will be acquired with the STIS CCD and the F28x50LP long pass fillter. We should achieve a signal-to-noise ratio of 25-35 in a single-orbit visit. Since submitting the proposal, we have discovered that target WD1504+546 is an eclipsing binary. If possible, the observation should not take place during the eclipse, as little to no UV flux would be detected. Full details and the ephemeris are provided in Visit 11. Each target will also be observed simultaneously with XMM-Newton. Planets and Planet Formation Stellar Physics 6 false true false false false 43.2 true SUPPORTED STAR DA M V-IV NO This object was generated by the targetselector and retrieved from the SIMBAD database. J2000 J2000 fuv_mag: 14.03 nuv_mag: 14.51 STAR DA M III-I NO This object was generated by the targetselector and retrieved from the SIMBAD database. J2000 J2000 fuv_mag 13.46 nuv_mag 14.33 STAR DA M III-I NO This object was generated by the targetselector and retrieved from the SIMBAD database. J2000 J2000 fuv_mag: 14.70 nuv_mag: 15.18 STAR DA M V-IV NO This object was generated by the targetselector and retrieved from the SIMBAD database. J2000 J2000 fuv_mag: n/a nuv_mag: 14.32 STAR BROWN DWARF DA NO This object was generated by the targetselector and retrieved from the SIMBAD database. J2000 J2000 fuv_mag: 15.03 nuv_mag: 15.14 STAR DA M III-I NO This object was generated by the targetselector and retrieved from the SIMBAD database. J2000 J2000 fuv_mag: n/a nuv_mag: 14.22 STAR DA M V-IV NO This object was generated by the targetselector and retrieved from the SIMBAD database. J2000 J2000 IUE BPM FLux: 1.3x10^-12 ergs cm^-2 A^-1 STAR DA M III-I NO J2000 J2000 fuv_mag: 15.068 nuv_mag: 15.615 STAR DA M III-I NO J2000 J2000 fuv_mag: 15.389 nuv_mag:15.809 STAR DA M V-IV NO J2000 J2000 nuv_mag: 15.5 STAR DA M III-I NO Enhanced timing constraints due to eclipse, see visit for details J2000 J2000 fuv_mag: 15.476 nuv_mag: 15.919 STAR DA M V-IV NO J2000 J2000 fuv_mag: 14.747 nuv_mag:15.203 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1291 STIS/FUV-MAMA Spectroscopic No No G140M 1272 /private/var/folders/8k/sxlgy5ts2xdbykzf_vw6jrfw0001c5/T/OPVisit6037850521203794503.xml The scheduling data was generated by CASM 25.2. CASM was run in Phase II mode. 1517528238000 73.6355311125948 (Tic-Visit :proposal-id 15189 :visit-id "01" :proposal-version -1 :trans-version "20171009" :date "26-Feb-2018 12:23:25.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 513232 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15189 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15189 :visit-id "01" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2770 :al-overhead-at-end 0 :internal-dur-at-end 369 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3205 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 25.2. CASM was run in Phase II mode. /private/var/folders/8k/sxlgy5ts2xdbykzf_vw6jrfw0001c5/T/OPVisit674987834427059557.xml (Tic-Visit :proposal-id 15189 :visit-id "51" :proposal-version -1 :trans-version "20171009" :date "26-Feb-2018 12:23:16.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 513232 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15189 :visit-id "51" :obset-id "51" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15189 :visit-id "51" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2770 :al-overhead-at-end 0 :internal-dur-at-end 369 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3205 :pcs-gap 0 ) true 1 0 /private/var/folders/8k/sxlgy5ts2xdbykzf_vw6jrfw0001c5/T/OPVisit8463020927645199074.xml The scheduling data was generated by CASM 25.2. CASM was run in Phase II mode. 1510767012000 289.327609589203 (Tic-Visit :proposal-id 15189 :visit-id "03" :proposal-version -1 :trans-version "20171009" :date "26-Feb-2018 12:23:26.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 513232 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15189 :visit-id "03" :obset-id "03" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15189 :visit-id "03" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2869 :al-overhead-at-end 0 :internal-dur-at-end 369 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3202 :pcs-gap 0 ) true 1 0 Flare simulation http://etc.stsci.edu/etc/results/COS.sa.1027131 Flare simulation http://etc.stsci.edu/etc/results/COS.sp.1026865/ /private/var/folders/8k/sxlgy5ts2xdbykzf_vw6jrfw0001c5/T/OPVisit8120740383405791200.xml The scheduling data was generated by CASM 25.2. CASM was run in Phase II mode. 1513519756000 301.3706324811592 (Tic-Visit :proposal-id 15189 :visit-id "04" :proposal-version -1 :trans-version "20171009" :date "26-Feb-2018 12:23:27.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 295776 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15189 :visit-id "04" :obset-id "04" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15189 :visit-id "04" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2805 :al-overhead-at-end 0 :internal-dur-at-end 398 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3240 :pcs-gap 0 ) true 1 0 /private/var/folders/8k/sxlgy5ts2xdbykzf_vw6jrfw0001c5/T/OPVisit7047554258154775999.xml The scheduling data was generated by CASM 25.2. CASM was run in Phase II mode. 1512494209000 295.0 (Tic-Visit :proposal-id 15189 :visit-id "05" :proposal-version -1 :trans-version "20171009" :date "26-Feb-2018 12:23:28.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 295776 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15189 :visit-id "05" :obset-id "05" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15189 :visit-id "05" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2959 :al-overhead-at-end 0 :internal-dur-at-end 398 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3393 :pcs-gap 0 ) true 1 0 /private/var/folders/8k/sxlgy5ts2xdbykzf_vw6jrfw0001c5/T/OPVisit904416301108845258.xml The scheduling data was generated by CASM 25.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 15189 :visit-id "06" :proposal-version -1 :trans-version "20171009" :date "26-Feb-2018 12:23:30.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 148000 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15189 :visit-id "06" :obset-id "06" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15189 :visit-id "06" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2804 :al-overhead-at-end 0 :internal-dur-at-end 360 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3240 :pcs-gap 0 ) true 1 0 /private/var/folders/8k/sxlgy5ts2xdbykzf_vw6jrfw0001c5/T/OPVisit1614858815223078756.xml The scheduling data was generated by CASM 25.2. CASM was run in Phase II mode. 1519731408000 81.40506595755511 (Tic-Visit :proposal-id 15189 :visit-id "07" :proposal-version -1 :trans-version "20171009" :date "26-Feb-2018 12:23:31.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 330528 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15189 :visit-id "07" :obset-id "07" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15189 :visit-id "07" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2760 :al-overhead-at-end 0 :internal-dur-at-end 407 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3216 :pcs-gap 0 ) true 1 0 /private/var/folders/8k/sxlgy5ts2xdbykzf_vw6jrfw0001c5/T/OPVisit5357267845247384550.xml The scheduling data was generated by CASM 25.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 15189 :visit-id "08" :proposal-version -1 :trans-version "20171009" :date "26-Feb-2018 12:23:32.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 261008 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15189 :visit-id "08" :obset-id "08" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15189 :visit-id "08" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3035 :al-overhead-at-end 0 :internal-dur-at-end 388 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3471 :pcs-gap 0 ) true 1 0 /private/var/folders/8k/sxlgy5ts2xdbykzf_vw6jrfw0001c5/T/OPVisit2489302035820747121.xml The scheduling data was generated by CASM 25.2. CASM was run in Phase II mode. (Tic-Visit :proposal-id 15189 :visit-id "09" :proposal-version -1 :trans-version "20171009" :date "26-Feb-2018 12:23:33.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 148000 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15189 :visit-id "09" :obset-id "09" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15189 :visit-id "09" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2784 :al-overhead-at-end 0 :internal-dur-at-end 360 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3217 :pcs-gap 0 ) true 1 0 /private/var/folders/8k/sxlgy5ts2xdbykzf_vw6jrfw0001c5/T/OPVisit2377834784197613138.xml The scheduling data was generated by CASM 25.2. CASM was run in Phase II mode. 1517324918000 283.8845 (Tic-Visit :proposal-id 15189 :visit-id "10" :proposal-version -1 :trans-version "20171009" :date "26-Feb-2018 12:23:34.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 148000 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15189 :visit-id "10" :obset-id "10" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15189 :visit-id "10" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2780 :al-overhead-at-end 0 :internal-dur-at-end 360 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3216 :pcs-gap 0 ) true 1 0 /private/var/folders/8k/sxlgy5ts2xdbykzf_vw6jrfw0001c5/T/OPVisit7024544666389618356.xml Phase windows are not calculated when the gap between schedulable intervals is less than 1 days, assuming no scheduling restrictions for constraint Phase 0.050/0.950. The scheduling data was generated by CASM 25.2. CASM was run in Phase II mode. WD1504+546 was discovered to be an eclipsing binary after this proposal was submitted. As no UV flux is expected during the eclipse and the eclipse duration is similar to the time on target, we request that the observation completely avoid the eclipse. The ephemeris is as follows, in days: T0 2457257.3662594743 T0_error 0.0014085256 E 0.93071526149955708 E_error 6.25E-06 Eclipse duration = 39 minuites Please let me know if you require further details. 1516648903000 294.5 (Tic-Visit :proposal-id 15189 :visit-id "11" :proposal-version -1 :trans-version "20171009" :date "26-Feb-2018 12:23:35.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 174064 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15189 :visit-id "11" :obset-id "11" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15189 :visit-id "11" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2960 :al-overhead-at-end 0 :internal-dur-at-end 369 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3393 :pcs-gap 0 ) true 1 0 /private/var/folders/8k/sxlgy5ts2xdbykzf_vw6jrfw0001c5/T/OPVisit5359647813559737620.xml The scheduling data was generated by CASM 25.2. CASM was run in Phase II mode. 1513036016000 69.6442495598493 (Tic-Visit :proposal-id 15189 :visit-id "12" :proposal-version -1 :trans-version "20171009" :date "26-Feb-2018 12:23:36.0" :trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 278384 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15189 :visit-id "12" :obset-id "12" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15189 :visit-id "12" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2792 :al-overhead-at-end 0 :internal-dur-at-end 398 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3225 :pcs-gap 0 ) true 1 0 /private/var/folders/8k/sxlgy5ts2xdbykzf_vw6jrfw0001c5/T/OPVisit4338291556585430869.xml The scheduling data was generated by CASM 25.2. CASM was run in Phase II mode. 1515142416000 309.7847124024926 (Tic-Visit :proposal-id 15189 :visit-id "02" :proposal-version -1 :trans-version "20171009" :date "26-Feb-2018 12:23:37.0" :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 800640 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 15189 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 15189 :visit-id "02" :orbit-number 1 :pcs-time 333 :si-vis-utilization 3213 :al-overhead-at-end 0 :internal-dur-at-end 578 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3546 :pcs-gap 0 ) true 1 0