Dec 29, 2025 Visit A2 is a repeat of Visit 02 approved via HOPR 93419 Visit A3 is a repeat of Visit 03 approved via HOPR 93412 --- Jan 2, 2025 Visit A1 is a repeat of Visit 01 approved via HOPR 93428 -733808250 ----- Attempting Submission 1 (Mon Aug 04 20:39:08 GMT 2025) ----- ----- Attempting Submission 2 (Mon Dec 29 21:22:05 GMT 2025) ----- ----- Attempting Submission 3 (Fri Jan 02 23:47:15 GMT 2026) ----- WFC3 IR Photometry Monitor the IR photometric throughput and time-dependent sensitivity losses with staring mode observations of four CALSPEC standard stars. Compute new time-dependent inverse sensitivities and encircled energies, if needed. Observations of three hot white dwarfs (GD153, GD71, GRW+70D5824) and the G-type standard (P330E) will be aquired in all IR imaging filters using subarrays at the center of the detector. Large dithers are used to mitigate contamination from self-persistence from exposure-to-exposure through the orbit. 0 false false RESTRICTED CALIBRATION PHOTOMETRIC This object was generated by the targetselector and retrieved from the SIMBAD database. SIMBAD listed proper motion for this target. When retrieving targets with PM from SIMBAD, APT requests the coordinates be calculated with an epoch of the year 2000. Do not modify this epoch. Always review coordinates using the Target Confirmation tool, which graphically displays the PM. J2000 CALIBRATION PHOTOMETRIC This object was generated by the targetselector and retrieved from the SIMBAD database. SIMBAD listed proper motion for this target. When retrieving targets with PM from SIMBAD, APT requests the coordinates be calculated with an epoch of the year 2000. Do not modify this epoch. Always review coordinates using the Target Confirmation tool, which graphically displays the PM. J2000 CALIBRATION PHOTOMETRIC This object was generated by the targetselector and retrieved from the SIMBAD database. SIMBAD listed proper motion for this target. When retrieving targets with PM from SIMBAD, APT requests the coordinates be calculated with an epoch of the year 2000. Do not modify this epoch. Always review coordinates using the Target Confirmation tool, which graphically displays the PM. J2000 CALIBRATION PHOTOMETRIC This object was generated by the targetselector and retrieved from the SIMBAD database. SIMBAD listed proper motion for this target. When retrieving targets with PM from SIMBAD, APT requests the coordinates be calculated with an epoch of the year 2000. Do not modify this epoch. Always review coordinates using the Target Confirmation tool, which graphically displays the PM. J2000 POS-TARG DITHER 0.636 LINE false false 2 41.788 WFC3-IR-DITHER-LINE 2 false POS-TARG DITHER 0.605 LINE false false 3 41.788 WFC3-IR-DITHER-LINE-3PT 3 false POS-TARG DITHER 2 LINE false false 2 0 LINE 4 false POS-TARG DITHER 1.3 LINE false false 3 15 LINE 5 false The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. All filters except F128N, F130N 1766659171000 295.48160955505557 (Tic-Visit :proposal-id 17961 :visit-id "01" :proposal-version -1 :trans-version "20250624" :date "29-Dec-2025 16:20:23.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 355744 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17961 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17961 :visit-id "01" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2440 :al-overhead-at-end 0 :internal-dur-at-end 95 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) true 1 0 This filter was OMITTED in last cycle in program 16415 The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/k1/c8wp1tgx1jv8tzjrsc86xwtc00058c/T/OPVisit10184994997933821826.xml All filters except F128N, F130N (Tic-Visit :proposal-id 17961 :visit-id "A1" :proposal-version -1 :trans-version "20250624" :date "02-Jan-2026 18:42:31.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 355744 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17961 :visit-id "A1" :obset-id "A1" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17961 :visit-id "A1" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2440 :al-overhead-at-end 0 :internal-dur-at-end 95 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) true 1 0 This filter was OMITTED in last cycle in program 16415 The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. All filters except F167N 1766202633000 302.5263815997801 (Tic-Visit :proposal-id 17961 :visit-id "02" :proposal-version -1 :trans-version "20250624" :date "29-Dec-2025 16:20:26.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 810672 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17961 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17961 :visit-id "02" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2693 :al-overhead-at-end 0 :internal-dur-at-end 409 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3121 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. All filters except F167N (Tic-Visit :proposal-id 17961 :visit-id "A2" :proposal-version -1 :trans-version "20250624" :date "23-Dec-2025 15:06:16.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 810672 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17961 :visit-id "A2" :obset-id "A2" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17961 :visit-id "A2" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2693 :al-overhead-at-end 0 :internal-dur-at-end 409 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3121 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. All filters except F128N, F132N 1765144407000 299.888448393501 (Tic-Visit :proposal-id 17961 :visit-id "03" :proposal-version -1 :trans-version "20250624" :date "29-Dec-2025 16:20:29.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 458064 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17961 :visit-id "03" :obset-id "03" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17961 :visit-id "03" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2564 :al-overhead-at-end 0 :internal-dur-at-end 121 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2976 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. All filters except F128N, F132N (Tic-Visit :proposal-id 17961 :visit-id "A3" :proposal-version -1 :trans-version "20250624" :date "23-Dec-2025 15:06:18.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 458064 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17961 :visit-id "A3" :obset-id "A3" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17961 :visit-id "A3" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2564 :al-overhead-at-end 0 :internal-dur-at-end 121 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2976 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. All filters plus both grisms Orients changes from last cycle to avoid a faint contaminator. These are consistent with the updated orients in the IR grism flux monitor, program 17968. OLD=180-240, NEW=240,260 (Tic-Visit :proposal-id 17961 :visit-id "04" :proposal-version -1 :trans-version "20250624" :date "23-Dec-2025 15:06:22.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 800736 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17961 :visit-id "04" :obset-id "04" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17961 :visit-id "04" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2180 :al-overhead-at-end 0 :internal-dur-at-end 721 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2987 :pcs-gap 0 ) true 1 0