Incorporated some minor corrections from a co-I. 2070662327 Assigned ID: 2693 ----- Attempting Submission 1 (Mon Jan 31 22:58:46 GMT 2022) ----- HST Phase I Proposal 2693 successfully submitted. Receipt: # 2693-1 ----- Attempting Submission 2 (Tue Feb 01 04:12:50 GMT 2022) ----- FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser POS TARG & PATTERN should be used carefully with WFC3 quad filters to avoid placing the target on the vignetted part of the field of view or moving it to another quadrant. FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser POS TARG & PATTERN should be used carefully with WFC3 quad filters to avoid placing the target on the vignetted part of the field of view or moving it to another quadrant. FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser POS TARG & PATTERN should be used carefully with WFC3 quad filters to avoid placing the target on the vignetted part of the field of view or moving it to another quadrant. FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser POS TARG & PATTERN should be used carefully with WFC3 quad filters to avoid placing the target on the vignetted part of the field of view or moving it to another quadrant. FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser POS TARG & PATTERN should be used carefully with WFC3 quad filters to avoid placing the target on the vignetted part of the field of view or moving it to another quadrant. FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser POS TARG & PATTERN should be used carefully with WFC3 quad filters to avoid placing the target on the vignetted part of the field of view or moving it to another quadrant. FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser POS TARG & PATTERN should be used carefully with WFC3 quad filters to avoid placing the target on the vignetted part of the field of view or moving it to another quadrant. FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser POS TARG & PATTERN should be used carefully with WFC3 quad filters to avoid placing the target on the vignetted part of the field of view or moving it to another quadrant. FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser POS TARG & PATTERN should be used carefully with WFC3 quad filters to avoid placing the target on the vignetted part of the field of view or moving it to another quadrant. FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser POS TARG & PATTERN should be used carefully with WFC3 quad filters to avoid placing the target on the vignetted part of the field of view or moving it to another quadrant. FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser POS TARG & PATTERN should be used carefully with WFC3 quad filters to avoid placing the target on the vignetted part of the field of view or moving it to another quadrant. FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser POS TARG & PATTERN should be used carefully with WFC3 quad filters to avoid placing the target on the vignetted part of the field of view or moving it to another quadrant. FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser POS TARG & PATTERN should be used carefully with WFC3 quad filters to avoid placing the target on the vignetted part of the field of view or moving it to another quadrant. FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser POS TARG & PATTERN should be used carefully with WFC3 quad filters to avoid placing the target on the vignetted part of the field of view or moving it to another quadrant. FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser FLASH level may be too low for this exposure or a short subexposure. See extended explanation in the diagnostic browser Resubmit with timing changes for Visit 4 to coordinate with JWST ERS/GTO observations of GRS. 787831006 ----- Attempting Submission 1 (Fri Mar 18 20:09:44 GMT 2022) ----- ----- Attempting Submission 2 (Mon Apr 25 18:39:00 GMT 2022) ----- ----- Attempting Submission 3 (Tue May 24 20:40:09 GMT 2022) ----- ----- Attempting Submission 4 (Fri Jul 08 17:19:57 GMT 2022) ----- FLASH - Diffuse light from the science target will mitigate CTI (see Fig. 2 of Wong et al. 2020, doi:10.3847/1538-4365/ab775f). POS TARG & PATTERN - POS-TARGs are used for positioning as described in Fig. 1 and Table 2 of Wong et al. 2020. There are also extensive comments in the Phase 2 Observing description and individual exposure comments to justify the offsets selected. The PJ 45 POS-TARG values had to be increased beyond our desired values to avoid spilling over into a second orbit with a guide star reacquisition. BLADE=A - We would like to request use of this parameter, only 1 time per orbit (so 6 times in the whole program). This is for 4 sec exposure times that may be affected by shutter vibration otherwise. TIMING - Visit BETWEEN and target CML observing window constraints are used to manage observation timing. PC can override these constraints as needed to schedule the observations. Intent behind the constraints is described in the visit comments and the target comments. Jupiter's North Equatorial Belt (NEB), a dark reddish/brown band just to the north of the Equatorial Zone, regularly varies in width and color. The current NEB cycle is more extreme than any previous transition since 1928, and it includes rarely seen convective eruptions at an active longitude moving around the planet. The current convective activity is a stealth superstorm, because it shares the long-term activity of a major superstorm, but it does not reach the same high altitudes. This newly recognized transitional case between the sporadic minor convective storms common in Jupiter's belts (but never detected on Saturn), and the major convective superstorms sending plumes up to high altitudes in the atmospheres of both gas giants, probes differences in convective styles related to the deep water abundance. HST observations of the stealth superstorm system would define 3D cloud structure by mapping deep water clouds and constraining plume heights. Observations require 200-km scale resolution (inaccessible to ground-based visible wavelength imaging) to distinguish anisotropic cloud structure in the stealth superstorm region and near the Juno spacecraft track. Juno's microwave observations have revealed that spectacular convective storms in 2016 (observed at cloud tops in the visible and infrared), are connected to changes in ammonia and temperature at great depth, both above and below the water-cloud layers. Data from Juno collected in 2021 and 2022 will test whether deep changes also accompany the current NEB cycle, with its newly recognized stealth superstorm activity. RATIONALE AND TIMING ------------------ Four orbits seeking simultaneous imaging with Juno spacecraft passes (or PJs), to provide context for atmospheric observations from Juno. Additional two orbits to image "stealth thunderstorms" drifting around near 10 deg N in the North Equatorial Belt. The storms tend to erupt at a special longitude that drifts westward at a rate of -6.38 deg/day in the System III longitude system. For PJ 42 and 43, the storm is not close to the Juno track. Observations should be somewhat close in time to Juno, about +/- 6 days from the spacecraft encounter. This enables the storm evolution to be tied to widespread/deep atmospheric properties separately measured by Juno. For PJ 44 and 45, the storm is currently predicted to fall close to the Juno spacecraft track, so the HST orbits timed to coincide with Juno should also capture images of the storm eruptions (if still present). Storm orbit timing (particularly the CML observing window constraints) may need to be adjusted based on updated tracking data from amateur astronomers. POS-TARGs ------------------ POS-TARGs are used on all quad and 2K exposures, to shift the target close enough to UVIS-center so that the same guide stars can be used for the whole visit. POS-TARG amounts are optimized to maximize the shift while avoiding placement of the target on detector regions affected by quad filter edges. In some cases, the limb of the planet may actually intrude into these detector regions, either for PJ 45 where Jupiter is so large (49.9" dia), or for FQ889N exposures where an additional large (0.87") dither patter is used to mitigate some fringing artifacts. In the case of FQ889N, good photometry near disk center was prioritized over good photometry on the limb. Team expertise is not required for Mid-Cycle proposals. Solar System Astronomy 3 false false false false false true false AVAILABLE SOLAR SYSTEM YES PJ 42 Juno equator-crossing longitude: 91.70 Closest approach time at spacecraft: 2022-05-23 02:35 Spacecraft to Earth 1-way light time: 44.91619224 min PLANET Jupiter STD=JUPITER CML OF JUPITER FROM EARTH BETWEEN 65 112 EARTH SOLAR SYSTEM YES Use same GRS longitude rates as for JWST ERS proposal 1373: Lon 294 on July 30. PLANET Jupiter STD=JUPITER CML OF JUPITER FROM EARTH BETWEEN 260 330 EARTH SOLAR SYSTEM YES PJ 43 Juno equator-crossing longitude: 327.6 PJ 43 Juno perijove longitude (at 36 N): 314.2 Closest approach time at spacecraft: 2022-07-05 09:17 Spacecraft to Earth 1-way light time: 39.58957185 min PLANET Jupiter STD=JUPITER CML OF JUPITER FROM EARTH BETWEEN 288 354 EARTH SOLAR SYSTEM YES Predicted superstorm longitude: 102.15 deg Sys III at 2022-07-05 09:17, with a drift rate of -6.379344658 deg/day. CML observing window should also shift by -6.38 deg/day from this time, but there is no obvious way to do that in APT while still tracking Jupiter center in the observations. PLANET Jupiter STD=JUPITER CML OF JUPITER FROM EARTH BETWEEN 46 179 EARTH SOLAR SYSTEM YES PJ 44 Juno equator-crossing longitude: 158.9 Closest approach time at spacecraft: 2022-08-17 14:45 Spacecraft to Earth 1-way light time: 34.71005428 min PLANET Jupiter STD=JUPITER CML OF JUPITER FROM EARTH BETWEEN 110 200 EARTH SOLAR SYSTEM YES PJ 45 Juno equator-crossing longitude: 240.0 Closest approach time at spacecraft: 2022-09-29 17:11 Spacecraft to Earth 1-way light time: 32.88914252 min PLANET Jupiter STD=JUPITER CML OF JUPITER FROM EARTH BETWEEN 200 270 EARTH WFC3/UVIS Imaging No No F225W WFC3/UVIS Imaging No No F275W WFC3/UVIS Imaging No No F343N WFC3/UVIS Imaging No No F395N WFC3/UVIS Imaging No No F502N WFC3/UVIS Imaging No No F631N WFC3/UVIS Imaging No No F658N WFC3/UVIS Imaging No No FQ727N WFC3/UVIS Imaging No No FQ750N WFC3/UVIS Imaging No No FQ889N WFC3/UVIS Imaging No No F225W WFC3/UVIS Imaging No No F275W WFC3/UVIS Imaging No No F343N WFC3/UVIS Imaging No No F395N WFC3/UVIS Imaging No No F502N WFC3/UVIS Imaging No No F631N WFC3/UVIS Imaging No No F658N WFC3/UVIS Imaging No No FQ727N WFC3/UVIS Imaging No No FQ750N WFC3/UVIS Imaging No No FQ889N WFC3/UVIS Imaging No No F225W WFC3/UVIS Imaging No No F275W WFC3/UVIS Imaging No No F343N WFC3/UVIS Imaging No No F395N WFC3/UVIS Imaging No No F502N WFC3/UVIS Imaging No No F631N WFC3/UVIS Imaging No No F658N WFC3/UVIS Imaging No No FQ727N WFC3/UVIS Imaging No No FQ750N WFC3/UVIS Imaging No No FQ889N WFC3/UVIS Imaging No No F225W WFC3/UVIS Imaging No No F275W WFC3/UVIS Imaging No No F343N WFC3/UVIS Imaging No No F395N WFC3/UVIS Imaging No No F502N WFC3/UVIS Imaging No No F631N WFC3/UVIS Imaging No No F658N WFC3/UVIS Imaging No No FQ727N WFC3/UVIS Imaging No No FQ750N WFC3/UVIS Imaging No No FQ889N POS-TARG DITHER 0.87 LINE false false 2 46.84 WFC3-UVIS-DITHER-LINE 2 false 1650911792223 Using ephemeris for target 16913-02-JUPITER-PJ42 ephemeris data for target 16913-02-JUPITER-PJ42 does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 21.213 to 23.091. ephemeris interval: 22.090 to 24.092 The scheduling data was generated by CASM 30.1. CASM was run in Phase II mode. Visit should fall within +/- 2 Jupiter rotations (about 20 hours) from PJ time: Closest approach time at spacecraft: 2022-05-23 02:35 Spacecraft to Earth 1-way light time: 44.91619224 min 1653174699000 245.89006727090612 (Tic-Visit :proposal-id 16913 :visit-id "02" :proposal-version -1 :trans-version "20211222" :date "25-Apr-2022 11:36:31.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 508608 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16913 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16913 :visit-id "02" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2472 :al-overhead-at-end 0 :internal-dur-at-end 592 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3142 :pcs-gap 0 ) false 1 0 Request BLADE=A for this exposure only 1657623452062 Using ephemeris for target 16913-04-JUPITER-GRS ephemeris data for target 16913-04-JUPITER-GRS does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 22.111 to 23.182. ephemeris interval: 22.181 to 24.183 The scheduling data was generated by CASM 30.3. CASM was run in Phase II mode. Observe Jupiter close to time of JWST ERS/GTO observations 1659021570000 246.5 (Tic-Visit :proposal-id 16913 :visit-id "04" :proposal-version -1 :trans-version "20220516" :date "12-Jul-2022 06:57:31.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 703872 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16913 :visit-id "04" :obset-id "04" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16913 :visit-id "04" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2539 :al-overhead-at-end 0 :internal-dur-at-end 575 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3142 :pcs-gap 0 ) false 1 0 Request BLADE=A for this exposure only 1653583101820 Using ephemeris for target 16913-03-JUPITER-PJ43 ephemeris data for target 16913-03-JUPITER-PJ43 does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 22.111 to 23.121. ephemeris interval: 22.120 to 24.122 The scheduling data was generated by CASM 30.1. CASM was run in Phase II mode. Visit should fall within +/- 2 Jupiter rotations (about 20 hours) from PJ time: Closest approach time at spacecraft: 2022-07-05 09:17 Spacecraft to Earth 1-way light time: 39.58957185 min (24 May edit: BETWEEN expanded to +/- 4 Jupiter rotations to improve scheduling options) 1657055658000 244.23462439015253 (Tic-Visit :proposal-id 16913 :visit-id "03" :proposal-version -1 :trans-version "20211222" :date "26-May-2022 12:38:21.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 703872 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16913 :visit-id "03" :obset-id "03" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16913 :visit-id "03" :orbit-number 1 :pcs-time 301 :si-vis-utilization 2462 :al-overhead-at-end 0 :internal-dur-at-end 652 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3142 :pcs-gap 0 ) false 1 0 Request BLADE=A for this exposure only 1653424452456 Using ephemeris for target 16913-05-JUPITER-PJ43-STORM ephemeris data for target 16913-05-JUPITER-PJ43-STORM does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 22.111 to 23.121. ephemeris interval: 22.120 to 24.122 The scheduling data was generated by CASM 30.1. CASM was run in Phase II mode. Relaxed timing for observation of storm, within about +/- 6 days of Juno perijove. 1657038442000 227.87141509344167 (Tic-Visit :proposal-id 16913 :visit-id "05" :proposal-version -1 :trans-version "20211222" :date "24-May-2022 16:34:12.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 703872 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16913 :visit-id "05" :obset-id "05" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16913 :visit-id "05" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2537 :al-overhead-at-end 0 :internal-dur-at-end 575 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3142 :pcs-gap 0 ) false 1 0 Request BLADE=A for this exposure only 1653424453321 Using ephemeris for target 16913-06-JUPITER-PJ44 ephemeris data for target 16913-06-JUPITER-PJ44 does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 22.111 to 23.121. ephemeris interval: 22.120 to 24.122 The scheduling data was generated by CASM 30.1. CASM was run in Phase II mode. Visit should fall within +/- 2 Jupiter rotations (about 20 hours) from PJ time: Closest approach time at spacecraft: 2022-08-17 14:45 Spacecraft to Earth 1-way light time: 34.71005428 min (Tic-Visit :proposal-id 16913 :visit-id "06" :proposal-version -1 :trans-version "20211222" :date "24-May-2022 16:34:13.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 703872 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16913 :visit-id "06" :obset-id "06" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16913 :visit-id "06" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2537 :al-overhead-at-end 0 :internal-dur-at-end 575 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3142 :pcs-gap 0 ) false 1 0 Request BLADE=A for this exposure only 1660051376130 Using ephemeris for target 16913-07-JUPITER-PJ45 ephemeris data for target 16913-07-JUPITER-PJ45 does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 22.111 to 23.213. ephemeris interval: 22.212 to 24.214 The scheduling data was generated by CASM 30.3. CASM was run in Phase II mode. /private/var/folders/zc/ljhf1lgn10b1yd9ytmwlp4jr00070l/T/OPVisit5731952797461093283.xml Visit should fall within +/- 2 Jupiter rotations (about 20 hours) from PJ time: Closest approach time at spacecraft: 2022-09-29 17:11 Spacecraft to Earth 1-way light time: 32.88914252 min (Tic-Visit :proposal-id 16913 :visit-id "07" :proposal-version -1 :trans-version "20220516" :date "09-Aug-2022 09:22:55.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 20.0 :data-volume 703872 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16913 :visit-id "07" :obset-id "07" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16913 :visit-id "07" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2425 :al-overhead-at-end 0 :internal-dur-at-end 652 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3142 :pcs-gap 0 ) true 1 0 POS-TARGS are large enough that part of Jupiter on this exposure may fall into regions where quad filter edge effects affect the image. This will only render the pixels closest to detector center unusable for photometry. This sacrifice is needed to avoid a second guide-star acquisition, because Quad-A and Quad-D are so far apart. Request BLADE=A for this exposure only