0 Assigned ID: 495 ----- Attempting Submission 1 (Fri Apr 10 14:42:12 GMT 2015) ----- HST Phase I Proposal 495 (Europa_c23.apt) successfully submitted. Receipt: # 495-1 ----- Attempting Submission 2 (Fri Apr 10 14:56:40 GMT 2015) ----- HST Phase I Proposal 495 (Europa_c23.apt) successfully submitted. Receipt: # 495-2 ----- Attempting Submission 3 (Fri Apr 10 19:21:19 GMT 2015) ----- Sensitive exposures should have an ETC run number provided. Sensitive exposures should have an ETC run number provided. Sensitive exposures should have an ETC run number provided. Sensitive exposures should have an ETC run number provided. Sensitive exposures should have an ETC run number provided. Sensitive exposures should have an ETC run number provided. Re-ordered epoch specification on visits 2054046728 ----- Attempting Submission 1 (Thu Jul 23 19:18:03 GMT 2015) ----- ----- Attempting Submission 2 (Fri Jan 15 13:40:10 GMT 2016) ----- ----- Attempting Submission 3 (Thu Jan 28 16:06:24 GMT 2016) ----- ETC run not necessary: STIS C23 instrument handbook p162 "all FUV-MAMA imaging modes are safe" Monitoring the ice plumes of Europa Crucial evidence has been found for plumes of water ice venting from the South polar region of Europa (Roth et al 2014) - spectroscopic detection of off-limb line emission from the dissociation products of water. We are engaged in a sensitive FUV HST imaging program to seek the Europa plumes and exosphere. The data reveal intriguing evidence for off-limb features, both in absorption as Europa transits the face of Jupiter, and emission, away from transit. Subsequent efforts by Roth et al to re-observe the plumes have yielded only upper limits, requiring that they are variable. The cause of the variability has not been established. Here, we propose a modest, sensitive monitoring program to continue to enhance our understanding of this important phenomenon, and to progress towards a determination of the frequency with which they appear. In transit, our strategy places firm limits on, or measurements of, absorbing columns and their distribution with altitude above the surface of Europa. Out of transit, we are sensitive to FUV emission from forward- or back-scattered sunlight and line emission. If the ice plumes of Europa arise from the deep ocean, we have gained access to probably the most astrobiologically interesting location in the Solar System. We will obtain a single ACS/SBC prism observation inside and outside eclipse. We will obtain one orbit that sweeps through all filters outside eclipse and the remaining four orbits will be inside eclipse. Three use broad filters and one uses the narrow band optical filters to seek auroral emission. SOLAR SYSTEM 12 false true false false 0.0 SUPPORTED SOLAR SYSTEM SATELLITE Satellite Europa STD=JUPITER STD=EUROPA TYPE=POS_ANGLE,RAD=6.5,ANG=224,REF=NORTH,R_RAD=-51.0,R_ANG=0.0,EPOCH=2016.053:20:22:00,EpochTimeScale=UTC TRANSIT OF EUROPA ACROSS JUPITER FROM EARTH, SEP OF EUROPA JUPITER FROM EARTH LT -5" EARTH SOLAR SYSTEM SATELLITE Satellite Europa STD=JUPITER STD=EUROPA TYPE=POS_ANGLE,RAD=6.5,ANG=44,REF=NORTH,R_RAD=-51.0,R_ANG=0.0,EPOCH=2016.064:10:51:00,EpochTimeScale=UTC TRANSIT OF EUROPA ACROSS JUPITER FROM EARTH, SEP OF EUROPA JUPITER FROM EARTH LT -5" EARTH SOLAR SYSTEM SATELLITE Satellite Europa STD=JUPITER STD=EUROPA TYPE=POS_ANGLE,RAD=6.5,ANG=44,REF=NORTH,R_RAD=-51.0,R_ANG=0.0,EPOCH=2016.070:05:12:00,EpochTimeScale=UTC OLG OF EUROPA BETWEEN 40 50 EARTH SOLAR SYSTEM SATELLITE Satellite Europa STD=JUPITER STD=EUROPA TYPE=POS_ANGLE,RAD=6.5,ANG=44,REF=NORTH,R_RAD=-51.0,R_ANG=0.0,EPOCH=2016.060:11:25:00,EpochTimeScale=UTC OLG OF EUROPA BETWEEN 130 140 EARTH SOLAR SYSTEM SATELLITE Satellite Europa STD=JUPITER STD=EUROPA TYPE=POS_ANGLE,RAD=6.5,ANG=44,REF=NORTH,R_RAD=-51.0,R_ANG=0.0,EPOCH=2016.057:19:47:30,EpochTimeScale=UTC OLG OF EUROPA BETWEEN 220 230 EARTH SOLAR SYSTEM SATELLITE Satellite Europa STD=JUPITER STD=EUROPA TYPE=POS_ANGLE,RAD=6.5,ANG=44,REF=NORTH,R_RAD=-51.0,R_ANG=0.0,EPOCH=2016.051:14:18:00,EpochTimeScale=UTC OLG OF EUROPA BETWEEN 310 320 EARTH STIS/FUV-MAMA Imaging No No F25QTZ STIS/FUV-MAMA Imaging No No F25SRF2 Using ephemeris for target 14112-01-EUROPA-NOTRANSIT-45 ephemeris data for target 14112-01-EUROPA-NOTRANSIT-45 does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 15.213 to 17.089. ephemeris interval: 15.365 to 18.001 The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. /private/var/folders/1q/dyycrp7x3rz1k0bm7714nz3w0003yh/T/OPVisit2180909008728912317.xml (Tic-Visit :proposal-id 14112 :visit-id "01" :proposal-version -1 :trans-version "20150609" :date "28-Jan-2016 11:01:51.0" :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 1809136 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14112 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14112 :visit-id "01" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2676 :al-overhead-at-end 0 :internal-dur-at-end 440 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3009 :pcs-gap 0 ) true 1 0 Using ephemeris for target 14112-02-EUROPA-NOTRANSIT-135 ephemeris data for target 14112-02-EUROPA-NOTRANSIT-135 does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 15.213 to 17.089. ephemeris interval: 15.365 to 18.001 The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. /private/var/folders/1q/dyycrp7x3rz1k0bm7714nz3w0003yh/T/OPVisit9182542976511490657.xml (Tic-Visit :proposal-id 14112 :visit-id "02" :proposal-version -1 :trans-version "20150609" :date "28-Jan-2016 11:01:52.0" :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 1809136 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14112 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14112 :visit-id "02" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2676 :al-overhead-at-end 0 :internal-dur-at-end 440 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3009 :pcs-gap 0 ) true 1 0 Using ephemeris for target 14112-03-EUROPA-NOTRANSIT-225 ephemeris data for target 14112-03-EUROPA-NOTRANSIT-225 does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 15.213 to 17.089. ephemeris interval: 15.365 to 18.001 The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. /private/var/folders/1q/dyycrp7x3rz1k0bm7714nz3w0003yh/T/OPVisit3284363474058674224.xml (Tic-Visit :proposal-id 14112 :visit-id "03" :proposal-version -1 :trans-version "20150609" :date "28-Jan-2016 11:01:53.0" :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 1809136 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14112 :visit-id "03" :obset-id "03" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14112 :visit-id "03" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2676 :al-overhead-at-end 0 :internal-dur-at-end 440 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3009 :pcs-gap 0 ) true 1 0 Using ephemeris for target 14112-04-EUROPA-NOTRANSIT-315 ephemeris data for target 14112-04-EUROPA-NOTRANSIT-315 does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 15.213 to 17.089. ephemeris interval: 15.365 to 18.001 The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. /private/var/folders/1q/dyycrp7x3rz1k0bm7714nz3w0003yh/T/OPVisit3489513689123168790.xml (Tic-Visit :proposal-id 14112 :visit-id "04" :proposal-version -1 :trans-version "20150609" :date "28-Jan-2016 11:01:54.0" :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 1809136 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14112 :visit-id "04" :obset-id "04" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14112 :visit-id "04" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2676 :al-overhead-at-end 0 :internal-dur-at-end 440 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3009 :pcs-gap 0 ) true 1 0 Using ephemeris for target 14112-05-EUROPA-TRANSITA ephemeris data for target 14112-05-EUROPA-TRANSITA does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 15.213 to 17.089. ephemeris interval: 15.365 to 18.001 The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. /private/var/folders/1q/dyycrp7x3rz1k0bm7714nz3w0003yh/T/OPVisit6934621942450574302.xml Time constraints are so that Sun-Target-Observer angle is greater than 0.6 deg (latter to avoid shadow behind target) and Europa diameter is >0.95 arcsec (Tic-Visit :proposal-id 14112 :visit-id "05" :proposal-version -1 :trans-version "20150609" :date "28-Jan-2016 11:01:55.0" :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 1809136 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14112 :visit-id "05" :obset-id "05" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14112 :visit-id "05" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2676 :al-overhead-at-end 0 :internal-dur-at-end 440 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3009 :pcs-gap 0 ) true 1 0 Using ephemeris for target 14112-06-EUROPA-TRANSITB ephemeris data for target 14112-06-EUROPA-TRANSITB does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 15.213 to 17.089. ephemeris interval: 15.365 to 18.001 The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. /private/var/folders/1q/dyycrp7x3rz1k0bm7714nz3w0003yh/T/OPVisit2904051341758469948.xml Time constraints are so that Sun-Target-Observer angle is greater than 0.6 deg (latter to avoid shadow behind target) and Europa diameter is >0.95 arcsec (Tic-Visit :proposal-id 14112 :visit-id "06" :proposal-version -1 :trans-version "20150609" :date "28-Jan-2016 11:01:56.0" :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 1809136 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14112 :visit-id "06" :obset-id "06" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14112 :visit-id "06" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2676 :al-overhead-at-end 0 :internal-dur-at-end 440 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3009 :pcs-gap 0 ) true 1 0