The (Chandra) Bad Attitude Project

the Target Confirmation bot hung up on me several times, but i have the charts from a previous program for which this is a follow-up. 2nd submission: removed G285M exposures, as per recommendation, and put exposure time back into 4 splits of G160M (and any extra seconds remaining into the target ACQ exp, if possible) -1325103246 ----- Attempting Submission 1 (Wed Aug 19 21:52:58 GMT 2020) ----- ----- Attempting Submission 2 (Wed Aug 26 20:37:45 GMT 2020) ----- The (Chandra) Bad Attitude Project Spacecraft heating causes parts of Chandra X-ray Observatory's sky -- especially the Ecliptic poles (EP) -- to be undesirable for scheduling. Normally, the EPs are celestial sweet spots. Always 90 degrees from the Sun, they are good for observations by satellites and from the ground, and receive high exposurse by scanning missions like TESS and eROSITA. HST's recent "Ecliptic poles Stellar Survey" (EclipSS) identified 10 FUV-extreme stars among 49 late-type dwarfs of the original target sample. Objective is to obtain short exposures of these objects with Chandra's HRC-I camera (best soft response of the available sensors), to link coronal X-rays to the existing FUV material. Jointly, HST/COS will cover key parts of the spectrum (especially C IV 155 nm) reluctantly sacrificed in the original fast survey (single orbit per target). While the EP target attitudes are "bad" (for Chandra heating), the exploration science is great, and well worth the extra scheduling effort. The observing scenario is similar for the ten targets, requiring a single COS orbit each. Following the Guide Star acquisition, an NUV imaging ACQ is carried out, using the BOA and either Mirror A or B depending on the target brightness. The target coordinates, from Gaia DR2, are very accurate. The NUV ACQ is followed by exposures with G160M-1533 (134 nm - 171 nm) at the 4 standard FP-POS steps, with equal-length sub-exposures, about 550 s for the typical target. The original program had included additional observations with COS NUV, to capture the important chromospheric MgII 280 nm doublet, but discussions with the STScI staff indicated that the sensitivity of the G285M mode, which has been declining rapidly in recent years, would be unsatisfactory for the purpose, so the NUV exposures were dropped (STIS NUV could not be substituted, because COS and STIS cannot be used in the same visit, and the program has allocated only a single orbit per target.) SAFETY ISSUES. All the targets have been observed previously in the FUV by COS, with no safety issues, even considering the bright H I 121 nm Lyman-alpha line, which is not covered in the present program. ETC runs were based on the StarCAT UV spectrum of the active mid-G dwarf Kappa Ceti, scaled to the average visual magnitude of the 10 targets, V= 7.8+/-0.6 mag. Kap Cet has FUV f/f_BOL emission-line ratios typical of the (high) activity levels of the Bad Attitude targets. S/N at the important emission lines (e.g., FUV Si IV 139 nm) is predicted to exceed 10 per resel in a single (of the 4) FP splits. The integrated line fluxes will be captured at much higher S/N since the splits will be co-added and each (resolved) emission feature is many resels wide. PI Ayres has extensive experience with the Hubble UV spectrographs, dating back to Cycle 1. Stellar Physics 0 false false true false false false 0.0 0.0 false SUPPORTED STAR F0-F2 NO Gaia DR2 (2018yCat.1345....0G) via SIMBAD J2000 J2000 sptyp= F2V; (B-V)= 0.37 mag; dist= 82 pc STAR F3-F9 NO Gaia DR2 (2018yCat.1345....0G) via SIMBAD J2000 J2000 sptyp= F3V; (B-V)= 0.38 mag; dist= 57 pc STAR F3-F9 NO Gaia DR2 (2018yCat.1345....0G) via SIMBAD J2000 J2000 sptyp= F8V; (B-V)= 0.41 mag; dist= 81 pc STAR G V-IV NO Gaia DR2 (2018yCat.1345....0G) via SIMBAD J2000 J2000 sptyp= G3V; (B-V)= 0.64 mag; dist= 33 pc STAR G V-IV NO Gaia DR2 (2018yCat.1345....0G) via SIMBAD J2000 J2000 sptyp= G3V; (B-V)= 0.60 mag; dist= 28 pc STAR K V-IV NO Gaia DR2 (2018yCat.1345....0G) via SIMBAD J2000 J2000 sptyp= K1V; (B-V)= 0.87 mag; dist= 37 pc STAR F0-F2 NO Gaia DR2 (2018yCat.1345....0G) via SIMBAD J2000 J2000 sptyp= F2V; (B-V)= 0.38 mag; dist= 81 pc STAR K V-IV NO Gaia DR2 (2018yCat.1345....0G) via SIMBAD J2000 J2000 sptyp= K1V; (B-V)= 0.84 mag; dist= 42 pc STAR G V-IV NO Gaia DR2 (2018yCat.1345....0G) via SIMBAD J2000 J2000 sptyp= G3V; (B-V)= 0.58 mag; dist= 36 pc STAR F3-F9 NO Gaia DR2 (2018yCat.1345....0G) via SIMBAD J2000 J2000 sptyp= F8V; (B-V)= 0.58 mag; dist= 45 pc COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 COS/FUV Spectroscopic No No G130M 1291 COS/FUV Spectroscopic No No G130M 1327 1601057150010 The scheduling data was generated by CASM 28.2. CASM was run in Phase II mode. 1600157217000 83.05395935413708 (Tic-Visit :proposal-id 16376 :visit-id "01" :proposal-version -1 :trans-version "20200619" :date "25-Sep-2020 14:05:49.0" :trans-errors '(:WARNINGS 0 :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 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16376 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16376 :visit-id "01" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2996 :al-overhead-at-end 0 :internal-dur-at-end 331 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3389 :pcs-gap 0 ) true 1 0 1598473185256 The scheduling data was generated by CASM 28.2. CASM was run in Phase II mode. 1601436878000 309.0889467286653 (Tic-Visit :proposal-id 16376 :visit-id "02" :proposal-version -1 :trans-version "20200518" :date "26-Aug-2020 14:19:45.0" :trans-errors '(:WARNINGS 0 :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 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16376 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16376 :visit-id "02" :orbit-number 1 :pcs-time 393 :si-vis-utilization 3132 :al-overhead-at-end 0 :internal-dur-at-end 331 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3525 :pcs-gap 0 ) true 1 0 1598473225438 The scheduling data was generated by CASM 28.2. CASM was run in Phase II mode. 1599982761000 119.88551532320741 (Tic-Visit :proposal-id 16376 :visit-id "03" :proposal-version -1 :trans-version "20200518" :date "26-Aug-2020 14:20:25.0" :trans-errors '(:WARNINGS 0 :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 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16376 :visit-id "03" :obset-id "03" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16376 :visit-id "03" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2996 :al-overhead-at-end 0 :internal-dur-at-end 331 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3389 :pcs-gap 0 ) true 1 0 1598473280623 The scheduling data was generated by CASM 28.2. CASM was run in Phase II mode. 1599783847000 235.7455022561386 (Tic-Visit :proposal-id 16376 :visit-id "04" :proposal-version -1 :trans-version "20200518" :date "26-Aug-2020 14:21:20.0" :trans-errors '(:WARNINGS 0 :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 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16376 :visit-id "04" :obset-id "04" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16376 :visit-id "04" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2996 :al-overhead-at-end 0 :internal-dur-at-end 331 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3389 :pcs-gap 0 ) true 1 0 1598473347300 The scheduling data was generated by CASM 28.2. CASM was run in Phase II mode. 1599796702000 79.28299744380888 (Tic-Visit :proposal-id 16376 :visit-id "05" :proposal-version -1 :trans-version "20200518" :date "26-Aug-2020 14:22:27.0" :trans-errors '(:WARNINGS 0 :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 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16376 :visit-id "05" :obset-id "05" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16376 :visit-id "05" :orbit-number 1 :pcs-time 393 :si-vis-utilization 3126 :al-overhead-at-end 0 :internal-dur-at-end 331 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3519 :pcs-gap 0 ) true 1 0 1598473390744 The scheduling data was generated by CASM 28.2. CASM was run in Phase II mode. 1600177305000 268.81415026841415 (Tic-Visit :proposal-id 16376 :visit-id "06" :proposal-version -1 :trans-version "20200518" :date "26-Aug-2020 14:23:10.0" :trans-errors '(:WARNINGS 0 :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 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16376 :visit-id "06" :obset-id "06" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16376 :visit-id "06" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2892 :al-overhead-at-end 0 :internal-dur-at-end 331 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3285 :pcs-gap 0 ) true 1 0 1598473473219 The scheduling data was generated by CASM 28.2. CASM was run in Phase II mode. 1601064341000 275.0548900982143 (Tic-Visit :proposal-id 16376 :visit-id "07" :proposal-version -1 :trans-version "20200518" :date "26-Aug-2020 14:24:33.0" :trans-errors '(:WARNINGS 0 :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 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16376 :visit-id "07" :obset-id "07" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16376 :visit-id "07" :orbit-number 1 :pcs-time 393 :si-vis-utilization 3018 :al-overhead-at-end 0 :internal-dur-at-end 331 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3411 :pcs-gap 0 ) true 1 0 1598473539311 The scheduling data was generated by CASM 28.2. CASM was run in Phase II mode. AB 0.5" dHp=3.7 PA=176; ORIENT to separate fainter secondary from primary spectrum 1601058238000 281.0 (Tic-Visit :proposal-id 16376 :visit-id "08" :proposal-version -1 :trans-version "20200518" :date "26-Aug-2020 14:25:39.0" :trans-errors '(:WARNINGS 0 :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 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16376 :visit-id "08" :obset-id "08" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16376 :visit-id "08" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2892 :al-overhead-at-end 0 :internal-dur-at-end 331 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3285 :pcs-gap 0 ) true 1 0 1598473627641 The scheduling data was generated by CASM 28.2. CASM was run in Phase II mode. 1599802819000 109.72910472917943 (Tic-Visit :proposal-id 16376 :visit-id "09" :proposal-version -1 :trans-version "20200518" :date "26-Aug-2020 14:27:07.0" :trans-errors '(:WARNINGS 0 :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 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16376 :visit-id "09" :obset-id "09" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16376 :visit-id "09" :orbit-number 1 :pcs-time 393 :si-vis-utilization 3092 :al-overhead-at-end 0 :internal-dur-at-end 331 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3486 :pcs-gap 0 ) true 1 0 1601057154323 The scheduling data was generated by CASM 28.2. CASM was run in Phase II mode. 1599974494000 115.5849093985521 (Tic-Visit :proposal-id 16376 :visit-id "10" :proposal-version -1 :trans-version "20200619" :date "25-Sep-2020 14:05:54.0" :trans-errors '(:WARNINGS 0 :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 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16376 :visit-id "10" :obset-id "10" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16376 :visit-id "10" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2996 :al-overhead-at-end 0 :internal-dur-at-end 331 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3389 :pcs-gap 0 ) true 1 0 1601057150010 (Tic-Visit :proposal-id 16376 :visit-id "01" :proposal-version -1 :trans-version "20200619" :date "25-Sep-2020 14:05:49.0" :trans-errors '(:WARNINGS 0 :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 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16376 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16376 :visit-id "01" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2996 :al-overhead-at-end 0 :internal-dur-at-end 331 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3389 :pcs-gap 0 ) false 1 0 1601057154323 (Tic-Visit :proposal-id 16376 :visit-id "10" :proposal-version -1 :trans-version "20200619" :date "25-Sep-2020 14:05:54.0" :trans-errors '(:WARNINGS 0 :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 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16376 :visit-id "10" :obset-id "10" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16376 :visit-id "10" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2996 :al-overhead-at-end 0 :internal-dur-at-end 331 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3389 :pcs-gap 0 ) false 1 0 1598473473219 (Tic-Visit :proposal-id 16376 :visit-id "07" :proposal-version -1 :trans-version "20200518" :date "26-Aug-2020 14:24:33.0" :trans-errors '(:WARNINGS 0 :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 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16376 :visit-id "07" :obset-id "07" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16376 :visit-id "07" :orbit-number 1 :pcs-time 393 :si-vis-utilization 3018 :al-overhead-at-end 0 :internal-dur-at-end 331 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3411 :pcs-gap 0 ) false 1 0