0 Assigned ID: 3514 ----- Attempting Submission 1 (Fri Mar 25 20:33:38 GMT 2022) ----- This target is not used in this proposal. A target acquisition should probably be performed before doing spectroscopy or coronography with STIS or COS. Sensitive exposures should have an ETC run number provided. Sensitive exposures should have an ETC run number provided. The specified GS Acq Scenario is not in the current list of valid scenarios. Sensitive exposures should have an ETC run number provided. Sensitive exposures should have an ETC run number provided. A target acquisition should probably be performed before doing spectroscopy or coronography with STIS or COS. Sensitive exposures should have an ETC run number provided. Sensitive exposures should have an ETC run number provided. A target acquisition should probably be performed before doing spectroscopy or coronography with STIS or COS. Sensitive exposures should have an ETC run number provided. Sensitive exposures should have an ETC run number provided. A target acquisition should probably be performed before doing spectroscopy or coronography with STIS or COS. Sensitive exposures should have an ETC run number provided. The specified GS Acq Scenario is not in the current list of valid scenarios. Sensitive exposures should have an ETC run number provided. The specified GS Acq Scenario is not in the current list of valid scenarios. Sensitive exposures should have an ETC run number provided. Visit 01 (5 orbits) is now split into two visits of 3 orbits (visit 01) and 2 orbits (new visit 03). 25 Oct 2022: Changes in BUFFER time for COS visit. Change in TA expsoure time for COS visit. 3 Nov 2022: Changes in expsoure times and buffer times or visit 02 (COS). 22 May 2023: Change from 6x6 aperture to 52x2D1 (after evaluation of visit taken in 2022) 14 August 2023: Added acquisitions for visits 51 and 53. For visit 51 (entering eclipse) I used Ganymede as acquisition target. For Visit 53 (egress) I used Europa as target, but it can be substituted by Io or Callisto (CHECKBOX needs to be adjusted) 9 August 2024: Removed acqustion from visit 54, following the example of succesful visit 53 using blind poitining. I also left about 60 seconds of unused exposure time in each exposure, as Bill J pointed out that only then the visit is schedulable. -663149364 ----- Attempting Submission 1 (Mon Jul 04 08:16:06 GMT 2022) ----- Your proposal could not be saved. Submission aborted. ----- Attempting Submission 3 (Fri Oct 07 14:53:21 GMT 2022) ----- ----- Attempting Submission 4 (Mon Oct 10 11:43:09 GMT 2022) ----- ----- Attempting Submission 5 (Tue Oct 25 08:05:44 GMT 2022) ----- ----- Attempting Submission 6 (Thu Nov 03 09:33:23 GMT 2022) ----- ----- Attempting Submission 7 (Mon May 22 06:34:40 GMT 2023) ----- ----- Attempting Submission 8 (Mon Aug 14 19:10:24 GMT 2023) ----- ----- Attempting Submission 9 (Fri Aug 09 14:19:18 GMT 2024) ----- The STIS setups have been used frequently and therefore we consider ETC runs not necessary. A recent analysis of HST/STIS images has revealed the presence of water vapor in the atmosphere of Ganymede, the largest moon of Jupiter and in the entire solar system. The derivation of H2O was through emissions from oxygen, using the relative brightness of far-UV multiplets at 1304 A and at 1356 A. The findings constitute the first detection of sublimated H2O in the outer solar system. This atmosphere likely collapses when Ganymede is eclipsed by Jupiter since surface temperature and sublimation flux are expected to decrease considerably. Here we propose follow-up observations to confirm the detection of H2O in the atmosphere and characterize the response of the H2O component to eclipse. For this, we use the succesful STIS FUV spectral imaging mode to monitor and map the diagnostic 1304 A and at 1356 A emissions from before to after a ~3-hour eclipse passage of Ganymede. During another eclipse occasion, we use COS and the G230L mode to measure OH aurora from dissociative excitation of H2O for the first time. This visit provides an independent confirmation of the H2O atmosphere. Ganymede is a primary target of ESA's JUpiter Icy Moon Explorer (JUICE) and NASA's Europa Clipper mission. An improved understanding of the moon's neutral environment delivers important information for optimal science planning and addressing the habitability goals for these milestone missions. In visit 1, we use five orbits of STIS FUV-MAMA G140L long-slit spectral imaging for a complete scan of an eclipse passage of Ganymede. With this mode, the OI 1304 A and OI 1356 A are imaged simultaneously. The orbits should optimally be aligned such that Ganymede is in sunlight during the first and last orbit and as much time as possible in eclipse durng the other three orbits. In visit 2, we use two contiguous orbits using COS in the NUV-MAMA G230L mode centered at 3000 A to measure the OH (A-X) band emission in eclipse. For acquisition, we need to use one of the three other Galilean moon and then sweep to Ganymede (which is eclipsed). After acqusition, we use the remaining time for the science exposures. The team is composed of experts on different parts of the project from planing of the observations to data analysis and modeling for the interpretation. The PI Lorenz Roth has experience from leading 7 successful HST programs as PI. He has proven to lead the HST observing programs from the beginning to succesful publications, including programs with eclipse observations of Europa technically similar to the observations proposed here for Ganymede. Joachim Saur is expert in the plasma interactions of the Jupiter moons with the magnetosphere and will provide input plasma sputtering processes for the surface and atmosphere. Joachim Saur, Kurt Retherford, Pippa Molyneux and Carl Schmidt have furthermore extensive experience with HST and STIS, inlcuding as PIs of several GO programs. Molyneux and Saur have led HST/STIS and COS programs for Ganymede in the last two cycles. The PI and three CoIs are members of the JUICE and Europa Clipper science teams. Solar System Astronomy 6 false false true false false false false false AVAILABLE SOLAR SYSTEM YES SATELLITE Ganymede near or in eclipse STD=JUPITER STD=GANYMEDE NOT OCC OF GANYMEDE BY JUPITER FROM EARTH EARTH SOLAR SYSTEM YES SATELLITE Ganymede near or in eclipse STD=JUPITER STD=GANYMEDE NOT OCC OF GANYMEDE-ECLIPSE BY JUPITER FROM EARTH, ECL U FULL OF GANYMEDE BY JUPITER FROM EARTH EARTH SOLAR SYSTEM YES This target is being used to do the target Acqs SATELLITE Galiliean Moon other than Europa for acquisition STD=JUPITER STD=IO NOT OCC OF IO-ACQ BY JUPITER FROM EARTH, SEP OF IO-ACQ EUROPA FROM EARTH GT 10", SEP OF IO-ACQ GANYMEDE FROM EARTH GT 10", SEP OF IO-ACQ CALLISTO FROM EARTH GT 10" EARTH SOLAR SYSTEM YES This target is being used to do the target Acqs SATELLITE Galiliean Moon other than Europa for acquisition STD=JUPITER STD=EUROPA NOT OCC OF EUROPA-ACQ BY JUPITER FROM EARTH, SEP OF EUROPA-ACQ IO FROM EARTH GT 10", SEP OF EUROPA-ACQ GANYMEDE FROM EARTH GT 10", SEP OF EUROPA-ACQ CALLISTO FROM EARTH GT 10" EARTH STIS/FUV-MAMA Spectroscopic No No G140L 1425 COS/NUV Spectroscopic No No G230L 3000 1665434909993 Using ephemeris for target 17099-01-GANYMEDE Using ephemeris for target 17099-01-GANYMEDE-ECLIPSE The scheduling data was generated by CASM 30.3. CASM was run in Phase II mode. /System/Volumes/Data/solaris/user1/williamj/hst/work/cycle30/OP-cache/17099-v01.xml Will execute during Oct 30 eclipse 1667123755000 66.24221124363851 (Tic-Visit :proposal-id 17099 :visit-id "01" :proposal-version -1 :trans-version "20220630" :date "10-Oct-2022 16:48:29.0" :trans-errors '(:WARNINGS 1 :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 521840 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17099 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Obset :proposal-id 17099 :visit-id "01" :obset-id "A1" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17099 :visit-id "01" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2100 :al-overhead-at-end 0 :internal-dur-at-end 2613 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2782 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17099 :visit-id "01" :orbit-number 2 :pcs-time 392 :si-vis-utilization 2406 :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 2782 :pcs-gap 0 ) false 2 1 6"x6" aperture is being used to enable a blind pointing on Ganymede. 1692042495264 /System/Volumes/Data/solaris/user1/williamj/hst/work/cycle30/OP-cache/17099-v51.xml HOPR repeat of visit 1 1693752946000 250.07948299446275 (Tic-Visit :proposal-id 17099 :visit-id "51" :proposal-version -1 :trans-version "20220630" :date "14-Aug-2023 15:48:15.0" :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 452960 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17099 :visit-id "51" :obset-id "51" :pcs-mode "FGS" ) (Tic-Obset :proposal-id 17099 :visit-id "51" :obset-id "A1" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17099 :visit-id "51" :orbit-number 1 :pcs-time 383 :si-vis-utilization 2381 :al-overhead-at-end 0 :internal-dur-at-end 2631 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2782 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17099 :visit-id "51" :orbit-number 2 :pcs-time 392 :si-vis-utilization 2390 :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 2782 :pcs-gap 0 ) false 2 0 6"x6" aperture is being used to enable a blind pointing on Ganymede. 1723212955108 Using ephemeris for target 17099-54-GANYMEDE ephemeris data for target 17099-54-GANYMEDE does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 22.273 to 25.213. ephemeris interval: 24.213 to 26.213 The scheduling data was generated by CASM 32.1.1. CASM was run in Phase II mode. HOPR repeat of visit 51 (Tic-Visit :proposal-id 17099 :visit-id "54" :proposal-version -1 :trans-version "20240604" :date "09-Aug-2024 16:15:55.0" :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 452256 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17099 :visit-id "54" :obset-id "54" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17099 :visit-id "54" :orbit-number 1 :pcs-time 380 :si-vis-utilization 1907 :al-overhead-at-end 0 :internal-dur-at-end 178 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2645 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17099 :visit-id "54" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2197 :al-overhead-at-end 0 :internal-dur-at-end 623 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2645 :pcs-gap 0 ) true 2 0 6"x6" aperture is being used to enable a blind pointing on Ganymede. 1665434909993 Will execute during Nov 13 eclipse 1668363509000 50.56449928372791 (Tic-Visit :proposal-id 17099 :visit-id "01" :proposal-version -1 :trans-version "20220630" :date "10-Oct-2022 16:48:29.0" :trans-errors '(:WARNINGS 1 :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 521840 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17099 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Obset :proposal-id 17099 :visit-id "01" :obset-id "A1" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17099 :visit-id "01" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2100 :al-overhead-at-end 0 :internal-dur-at-end 2613 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2782 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17099 :visit-id "01" :orbit-number 2 :pcs-time 392 :si-vis-utilization 2406 :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 2782 :pcs-gap 0 ) false 2 1 6"x6" aperture is being used to enable a blind pointing on Ganymede. 1701696234006 /System/Volumes/Data/solaris/user1/williamj/hst/work/cycle30/OP-cache/17099-v53.xml HOPR repeat of visit 03. 1703664576000 57.84320012963519 (Tic-Visit :proposal-id 17099 :visit-id "53" :proposal-version -1 :trans-version "20230626" :date "04-Dec-2023 08:23:53.0" :trans-errors '(:WARNINGS 1 :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 521840 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17099 :visit-id "53" :obset-id "53" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17099 :visit-id "53" :orbit-number 1 :pcs-time 443 :si-vis-utilization 1997 :al-overhead-at-end 0 :internal-dur-at-end 178 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2776 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17099 :visit-id "53" :orbit-number 2 :pcs-time 392 :si-vis-utilization 2337 :al-overhead-at-end 0 :internal-dur-at-end 623 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2776 :pcs-gap 0 ) true 2 0 52 x 2 aperture is being used to enable a blind pointing on Ganymede. 1665434853382 /System/Volumes/Data/solaris/user1/williamj/hst/work/cycle30/OP-cache/17099-v04.xml Will execute during Nov 13 eclipse 1668375241000 50.82514463901421 (Tic-Visit :proposal-id 17099 :visit-id "04" :proposal-version -1 :trans-version "20220630" :date "10-Oct-2022 16:47:33.0" :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 157136 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17099 :visit-id "04" :obset-id "04" :pcs-mode "FGS" ) (Tic-Obset :proposal-id 17099 :visit-id "04" :obset-id "A4" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17099 :visit-id "04" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2253 :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 2782 :pcs-gap 0 ) false 1 0 1668958193490 /System/Volumes/Data/solaris/user1/williamj/hst/work/cycle30/OP-cache/17099-v02.xml Will execute during Dec 5 eclipse 1670220310000 49.3250941957715 (Tic-Visit :proposal-id 17099 :visit-id "02" :proposal-version -1 :trans-version "20220630" :date "20-Nov-2022 10:29:53.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 2 :saa-model "32" :si-bright-earth-limb-angle 20.0 :data-volume 374128 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17099 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Obset :proposal-id 17099 :visit-id "02" :obset-id "A2" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17099 :visit-id "02" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2158 :al-overhead-at-end 0 :internal-dur-at-end 38 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2782 :pcs-gap 0 ) (Tic-Orbit :proposal-id 17099 :visit-id "02" :orbit-number 2 :pcs-time 392 :si-vis-utilization 2390 :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 2782 :pcs-gap 0 ) true 2 0 This acquisition mode/setup was used successfully used in program 16211.