0 Assigned ID: 1277 ----- Attempting Submission 1 (Fri Sep 30 20:54:15 GMT 2016) ----- The number of orbits used exceeds the number allocated 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. Sensitive exposures should have an ETC run number provided. Added level 3 for visit 2 after replicating it as visit 22, target 22. -478007294 ----- Attempting Submission 1 (Wed Dec 07 17:34:16 GMT 2016) ----- ----- Attempting Submission 2 (Mon Dec 12 21:33:46 GMT 2016) ----- ----- Attempting Submission 3 (Tue Feb 07 21:45:40 GMT 2017) ----- ----- Attempting Submission 4 (Tue Feb 14 19:39:19 GMT 2017) ----- ----- Attempting Submission 5 (Mon Mar 06 16:28:47 GMT 2017) ----- ----- Attempting Submission 6 (Wed Mar 15 21:22:12 GMT 2017) ----- ----- Attempting Submission 7 (Thu Apr 13 23:27:52 GMT 2017) ----- ETC runs are not required because we have used this observing mode previously Confirming the ice plumes of Europa The presence of plumes of water ice venting from the icy surface of Europa is of tremendous interest to the scientific community, NASA and the general public, as it offers the prospect of access to material that was once in Europa's ocean without the need to drill through many miles of ice. We secured three observations, from a sample of ten, showing plume candidates, using FUV HST imaging of Europa as it transits the smooth face of Jupiter (Sparks et al., 2016). Crucially, the most accurately localized candidate, which is also the candidate of highest statistical significance, appears to repeat in recent unpublished 2016 data. We propose to acquire additional transit images in order to assess the repeatability of this event, determine a timescale for activity, and to aid in quantifying the column density and mass required. The data will provide additional opportunities to isolate new plume candidates and further characterize the persistent absorption around the southern limb of Europa. We propose a campaign to image Europa in transit against Jupiter close to the April 2017 opposition, in order to maximize spatial resolution, sensitivity, and time sampling. These measurements have the potential to profoundly influence a topic of fundamental scientific importance and of great strategic interest to NASA. 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 use the high resolution TIME-TAG FUV imaging mode of STIS, to obtain six images of Europa in transit against the face of Jupiter, close to opposition in order to maximize spatial resolution, sensitivity. We will use the F25SRF2 filter and drift the image of Europa across the detector using moving target specifications to Level 3. Each image is a single visit, of maximum duration permitted by the orbit. We will avoid opposition itself in order that the shadow of Europa on Jupiter does not interfere with the observation. Solar System 3 false true false false false false SUPPORTED SOLAR SYSTEM SATELLITE Satellite Europa STD=JUPITER STD=EUROPA TYPE=POS_ANGLE,RAD=6.5,ANG=53.0,REF=NORTH,R_RAD=-51.,R_ANG=0,EPOCH=12-MAR-2017:15:45:30,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 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=240.6,REF=NORTH,R_RAD=-51.0,R_ANG=0,EPOCH=17-APR-2017:02:12:20,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=5.5,ANG=263.7,REF=NORTH,R_RAD=-51.0,R_ANG=0.0,EPOCH=10-APR-2017:00:06:30,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=41.0,REF=NORTH,R_RAD=-51.0,R_ANG=0.0,EPOCH=30-MAR-2017:09:45:35,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=235.0,REF=NORTH,R_RAD=-51.0,R_ANG=0.0,EPOCH=20-APR-2017:16:02:55,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=259.1,REF=NORTH,R_RAD=-51.0,R_ANG=0.0,EPOCH=27-APR-2017:18:06:20,EpochTimeScale=UTC TRANSIT OF EUROPA ACROSS JUPITER FROM EARTH, SEP OF EUROPA JUPITER FROM EARTH LT -5" EARTH STIS/FUV-MAMA Imaging No No F25SRF2 Using ephemeris for target 14891-02-EUROPA-TRANSIT-2 ephemeris data for target 14891-02-EUROPA-TRANSIT-2 does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 17.043 to 18.091. ephemeris interval: 17.059 to 19.060 The scheduling data was generated by CASM 25.0. CASM was run in Phase II mode. /private/var/folders/1q/dyycrp7x3rz1k0bm7714nz3w0003yh/T/OPVisit6879681494600098641.xml 1492394679000 124.58655439505361 (Tic-Visit :proposal-id 14891 :visit-id "02" :proposal-version -1 :trans-version "20170109" :date "13-Apr-2017 19:24:07.0" :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 14891 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14891 :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 The scheduling data was generated by CASM 25.0. CASM was run in Phase II mode. /private/var/folders/1q/dyycrp7x3rz1k0bm7714nz3w0003yh/T/OPVisit2009733207141639099.xml (Tic-Visit :proposal-id 14891 :visit-id "22" :proposal-version -1 :trans-version "20170109" :date "13-Apr-2017 19:24:09.0" :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 1809136 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14891 :visit-id "22" :obset-id "22" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14891 :visit-id "22" :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 14891-03-EUROPA-TRANSIT-3 ephemeris data for target 14891-03-EUROPA-TRANSIT-3 does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 17.043 to 18.091. ephemeris interval: 17.059 to 19.060 The scheduling data was generated by CASM 25.0. CASM was run in Phase II mode. /private/var/folders/1q/dyycrp7x3rz1k0bm7714nz3w0003yh/T/OPVisit6438554165719815250.xml 1491782332000 147.68244081927912 (Tic-Visit :proposal-id 14891 :visit-id "03" :proposal-version -1 :trans-version "20170109" :date "13-Apr-2017 19:24:10.0" :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 14891 :visit-id "03" :obset-id "03" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14891 :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 14891-04-EUROPA-TRANSIT-4 ephemeris data for target 14891-04-EUROPA-TRANSIT-4 does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 17.043 to 18.091. ephemeris interval: 17.059 to 19.060 The scheduling data was generated by CASM 25.0. CASM was run in Phase II mode. /private/var/folders/1q/dyycrp7x3rz1k0bm7714nz3w0003yh/T/OPVisit1387088868950349338.xml 1490866661000 290.0221359338799 (Tic-Visit :proposal-id 14891 :visit-id "04" :proposal-version -1 :trans-version "20170109" :date "13-Apr-2017 19:24:11.0" :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 14891 :visit-id "04" :obset-id "04" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14891 :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 14891-05-EUROPA-TRANSIT-5 ephemeris data for target 14891-05-EUROPA-TRANSIT-5 does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 17.043 to 18.091. ephemeris interval: 17.059 to 19.060 The scheduling data was generated by CASM 25.0. CASM was run in Phase II mode. /private/var/folders/1q/dyycrp7x3rz1k0bm7714nz3w0003yh/T/OPVisit7448812226443893068.xml 1492703653000 105.43229610271231 (Tic-Visit :proposal-id 14891 :visit-id "05" :proposal-version -1 :trans-version "20170109" :date "13-Apr-2017 19:24:12.0" :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 14891 :visit-id "05" :obset-id "05" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14891 :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 14891-06-EUROPA-TRANSIT-6 ephemeris data for target 14891-06-EUROPA-TRANSIT-6 does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 17.043 to 18.091. ephemeris interval: 17.059 to 19.060 The scheduling data was generated by CASM 25.0. CASM was run in Phase II mode. /private/var/folders/1q/dyycrp7x3rz1k0bm7714nz3w0003yh/T/OPVisit7776461047725400338.xml 1493315922000 143.1866833568771 (Tic-Visit :proposal-id 14891 :visit-id "06" :proposal-version -1 :trans-version "20170109" :date "13-Apr-2017 19:24:13.0" :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 1809136 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14891 :visit-id "06" :obset-id "06" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14891 :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 Using ephemeris for target 14891-01-EUROPA-TRANSIT-1 ephemeris data for target 14891-01-EUROPA-TRANSIT-1 does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 17.043 to 18.091. ephemeris interval: 17.059 to 19.060 The scheduling data was generated by CASM 25.0. CASM was run in Phase II mode. /private/var/folders/1q/dyycrp7x3rz1k0bm7714nz3w0003yh/T/OPVisit1512150032906717521.xml 1489333075000 297.05727931202307 (Tic-Visit :proposal-id 14891 :visit-id "01" :proposal-version -1 :trans-version "20170109" :date "13-Apr-2017 19:24:15.0" :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 1878720 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14891 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14891 :visit-id "01" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2825 :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 3210 :pcs-gap 0 ) true 1 0