0 Assigned ID: 1183 ----- Attempting Submission 1 (Fri Nov 29 21:20:09 GMT 2019) ----- 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 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 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 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 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 RESUBMIT Dec 18 --- PC has identified Jan 07 timing window. I added exp. 5 (F467M) to exploit unused visibility in scheduling window. I switched non-Quad frames to use C512C-SUB instead of M512C-SUB, because C512C is closer to the readout amp and thus has better CTE performance. 396076711 ----- Attempting Submission 1 (Sat Dec 07 00:44:39 GMT 2019) ----- ----- Attempting Submission 2 (Wed Dec 18 19:22:29 GMT 2019) ----- FLASH warning - As described now in the warning explanation, we benefit from diffuse light from the science target to fill traps and improve CTE. POS TARG + PATTERN warning - POS TARG values have been carefully determined to place the target close to the vignetted region but not too close. This decreases the overall slew distance for the visit and thus hopefully increases guide star availability. Dark Vortex Disruption Annual HST observations of Neptune, last obtained at the end of September 2019, show that the planet's dark spot is drifting toward the equator. This feature, named "NDS-2018" for its discovery date, is the first dark spot seen to behave like the Great Dark Spot discovered by Voyager 2. Its equatorward migration is similar to numerical simulations, which also find that vortices drifting too close to the equator will become disrupted, creating a planetary-scale disturbance. The formation of NDS-2018 was witnessed by Hubble, unusual because only one other dark spot had a well-defined formation time. Similarly, only two (different) vortices were seen to dissipate by fading away. Late-time observations of NDS-2018 would thus create the only full record of the origin, evolution, and dissipation of a dark vortex, as well as the only observations of the dissipation pathway involving equatorward drift and disruption (conjectured, but never observed). New observations are urgently requested before Neptune reaches HST's solar exclusion limit on January 12, 2020. The observations would either (1) measure the morphology, position, and drift of the vortex prior to disruption; (2) witness a never-before seen planetary-scale disturbance long anticipated from model simulations; or (3) give tight constraints on the complete lifetime of a dark vortex for the first time. Rather than fading, the vortex increased in contrast from 2018 to 2019, while also shrinking in overall area. New photometric and morphological measurements will determine whether the vortex evolution continues to resemble a vorticity-preserving column-stretching process. A set of 4-5 identical orbits, equally spaced in longitude over one Neptune rotation (16 hours). We need to cover all possible longitudes because the longitudinal drift rate of NDS-2018 varied between 2018 and 2019 data, leading to large uncertainties in the longitude at the time of observation. The program must be executed in December or January, prior to conjunction (Neptune is 55 deg from the Sun on 2020-Jan-12). We request observations as soon as feasible (but not disruptive) during the period before conjunction. All timing constraints are described in more detail in the Visit 1 comments. We mitigate unstable pixels by dithering both spatially and temporally (i.e., using Neptune's changing rotational phase to dither). The F467M filter provides the highest contrast for dark spots, so we acquire the most frames per orbit in this filter. The frames will be spread evenly throughout the orbit, to maximize the range of longitudes covered at low emission angle. F467M (512K SUB) F547M (512K SUB) F763M (512K SUB) F845M (512K SUB) FQ619N Team expertise is not included for DDT proposals. Solar System 0 false SUPPORTED SOLAR SYSTEM YES PLANET Neptune STD=NEPTUNE EARTH WFC3/UVIS Imaging No No F467M WFC3/UVIS Imaging No No F547M WFC3/UVIS Imaging No No F763M WFC3/UVIS Imaging No No F845M WFC3/UVIS Imaging No No FQ619N POS-TARG DITHER 0.145 Standard WFC3/UVIS 2-pt line dither, for PSF sampling and bad-pix amelioration. LINE false false 2 46.84 WFC3-UVIS-DITHER-LINE 1 false Using ephemeris for target 16057-01-NEPTUNE ephemeris data for target 16057-01-NEPTUNE does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 19.213 to 21.089. ephemeris interval: 19.334 to 21.335 Timing link suitability includes constraints ([Sequence (01 02 03 04 05) within 0.6 days] [05 After 01 by 0.5 to 0.6 days]) The scheduling data was generated by CASM 27.2. CASM was run in Phase II mode. /private/var/folders/wg/z95ckdqx6lg9p8lcchj84k6m0000gn/T/OPVisit6402136590637471647.xml Desired visit timing is every other HST orbit. If this cannot be scheduled soon, then we can accept a pair of consecutive orbits (and thus a gap of 2 orbits) somewhere in the sequence. To capture this, we set a SEQ ALL VISITS WITHIN 15 HOURS condition. Visit 5 must start 8 or 9 orbits after visit 1 (12:44 to 14:20 after), to span a full Neptune rotation, so we set a VISIT 5 AFTER VISIT 1 BY 12 TO 15 HOURS condition. All visits must complete before Neptune reaches 55 deg solar elongation, so we set a BEFORE 13-JAN-2020 condition on all visits (but presumably this constraint is already covered by the HST planning system). (Tic-Visit :proposal-id 16057 :visit-id "01" :proposal-version -1 :trans-version "20190514" :date "18-Dec-2019 11:15:58.0" :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 223152 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16057 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16057 :visit-id "01" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2617 :al-overhead-at-end 0 :internal-dur-at-end 280 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3142 :pcs-gap 0 ) true 1 0 Using ephemeris for target 16057-02-NEPTUNE ephemeris data for target 16057-02-NEPTUNE does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 19.213 to 21.089. ephemeris interval: 19.334 to 21.335 Timing link suitability includes constraints ([Sequence (01 02 03 04 05) within 0.6 days]) The scheduling data was generated by CASM 27.2. CASM was run in Phase II mode. /private/var/folders/wg/z95ckdqx6lg9p8lcchj84k6m0000gn/T/OPVisit8399519152838308127.xml (Tic-Visit :proposal-id 16057 :visit-id "02" :proposal-version -1 :trans-version "20190514" :date "18-Dec-2019 11:16:00.0" :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 223152 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16057 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16057 :visit-id "02" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2617 :al-overhead-at-end 0 :internal-dur-at-end 280 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3142 :pcs-gap 0 ) true 1 0 Using ephemeris for target 16057-03-NEPTUNE ephemeris data for target 16057-03-NEPTUNE does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 19.213 to 21.089. ephemeris interval: 19.334 to 21.335 Timing link suitability includes constraints ([Sequence (01 02 03 04 05) within 0.6 days]) The scheduling data was generated by CASM 27.2. CASM was run in Phase II mode. /private/var/folders/wg/z95ckdqx6lg9p8lcchj84k6m0000gn/T/OPVisit5048014070504245361.xml (Tic-Visit :proposal-id 16057 :visit-id "03" :proposal-version -1 :trans-version "20190514" :date "18-Dec-2019 11:16:03.0" :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 223152 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16057 :visit-id "03" :obset-id "03" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16057 :visit-id "03" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2617 :al-overhead-at-end 0 :internal-dur-at-end 280 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3142 :pcs-gap 0 ) true 1 0 Using ephemeris for target 16057-04-NEPTUNE ephemeris data for target 16057-04-NEPTUNE does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 19.213 to 21.089. ephemeris interval: 19.334 to 21.335 Timing link suitability includes constraints ([Sequence (01 02 03 04 05) within 0.6 days]) The scheduling data was generated by CASM 27.2. CASM was run in Phase II mode. /private/var/folders/wg/z95ckdqx6lg9p8lcchj84k6m0000gn/T/OPVisit5144559012344582309.xml (Tic-Visit :proposal-id 16057 :visit-id "04" :proposal-version -1 :trans-version "20190514" :date "18-Dec-2019 11:16:06.0" :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 223152 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16057 :visit-id "04" :obset-id "04" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16057 :visit-id "04" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2617 :al-overhead-at-end 0 :internal-dur-at-end 280 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3142 :pcs-gap 0 ) true 1 0 Using ephemeris for target 16057-05-NEPTUNE ephemeris data for target 16057-05-NEPTUNE does not cover planning interval. Physical constraints are assumed to be unschedulable outside of the ephemeris data. Planning interval: 19.213 to 21.089. ephemeris interval: 19.334 to 21.335 Timing link suitability includes constraints ([Sequence (01 02 03 04 05) within 0.6 days] [05 After 01 by 0.5 to 0.6 days]) The scheduling data was generated by CASM 27.2. CASM was run in Phase II mode. /private/var/folders/wg/z95ckdqx6lg9p8lcchj84k6m0000gn/T/OPVisit5022017727433774219.xml (Tic-Visit :proposal-id 16057 :visit-id "05" :proposal-version -1 :trans-version "20190514" :date "18-Dec-2019 11:16:08.0" :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 223152 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 16057 :visit-id "05" :obset-id "05" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 16057 :visit-id "05" :orbit-number 1 :pcs-time 393 :si-vis-utilization 2617 :al-overhead-at-end 0 :internal-dur-at-end 280 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3142 :pcs-gap 0 ) true 1 0