WFC3 UVIS CTI Monitor (EPER)

The list of Investigators does not match the STScI records for this program. WFC3 EXPOSURE TIME ADJUSTED WFC3 EXPOSURE TIME ADJUSTED 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 MAXIMUM DURATION EXCEEDED FOR INTERNAL OR EARTH CALIB VISIT WFC3 EXPOSURE TIME ADJUSTED WFC3 EXPOSURE TIME ADJUSTED 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 WFC3 EXPOSURE TIME ADJUSTED WFC3 EXPOSURE TIME ADJUSTED 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 WFC3 EXPOSURE TIME ADJUSTED WFC3 EXPOSURE TIME ADJUSTED MAXIMUM DURATION EXCEEDED FOR INTERNAL OR EARTH CALIB VISIT 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 WFC3 EXPOSURE TIME ADJUSTED WFC3 EXPOSURE TIME ADJUSTED 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 MAXIMUM DURATION EXCEEDED FOR INTERNAL OR EARTH CALIB VISIT WFC3 EXPOSURE TIME ADJUSTED WFC3 EXPOSURE TIME ADJUSTED 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 WFC3 EXPOSURE TIME ADJUSTED WFC3 EXPOSURE TIME ADJUSTED 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 WFC3 EXPOSURE TIME ADJUSTED WFC3 EXPOSURE TIME ADJUSTED MAXIMUM DURATION EXCEEDED FOR INTERNAL OR EARTH CALIB VISIT 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 WFC3 EXPOSURE TIME ADJUSTED WFC3 EXPOSURE TIME ADJUSTED 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 WFC3 EXPOSURE TIME ADJUSTED WFC3 EXPOSURE TIME ADJUSTED MAXIMUM DURATION EXCEEDED FOR INTERNAL OR EARTH CALIB VISIT 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 WFC3 EXPOSURE TIME ADJUSTED WFC3 EXPOSURE TIME ADJUSTED 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 MAXIMUM DURATION EXCEEDED FOR INTERNAL OR EARTH CALIB VISIT WFC3 EXPOSURE TIME ADJUSTED WFC3 EXPOSURE TIME ADJUSTED 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 0 ----- Attempting Submission 1 (Wed Jul 23 18:28:29 GMT 2025) ----- egarding the following warnings: Warning (Form) FLASH level may be too low for this exposure or a short subexposure and Warning (Orbit Planner) MAXIMUM DURATION EXCEEDED FOR INTERNAL OR EARTH CALIB VISIT: These errors are expected and can be ignored. Long internal orbits are required to obtain the necessary calibration data. WFC3 UVIS CTI Monitor (EPER) This proposal measures CTI (Charge Transfer Inefficiency) for WFC3/UVIS, making use of the EPER mode, Extended Pixel Edge Response. EPER is not unique to WFC3 (also used on ACS) and measures trailing charge in detector overscan regions increased by extended pixels. The EPER program has many cycles worth of similar comparison, including proposals 11924, 12347, 12691, 13082, 12565, 14011, 14377, 14540, 14989, 15575, 15720, 16400, 17008, 17353, 17673 In this 12 orbit program we take pairs of internal flat fields at varying levels of illumination. We take "biases" for this proposals as 1/2 second darks; WFC3/UVIS flight software is unable to take 0 second exposures in the non-standard EPER mode. Every visit pair includes two half-second darks, three F390M internal tungsten flats, and two F438W internal flats. The proposal lasts a full year, made up of 8 week visit pair increments . The analysis is done with a pipeline to remove noise, calibrate images, and look for trends in CTI data, based on the work of Robberto (ISR 2007-13), automated by Bourque & Kozhurina-Platais (TIR 2012-03), and furthered by Khandrika (ISR 2020-06) and O'Connor & Khandrika (ISR 2025-02). --------- Additional Comments ---------- Formerly, EPER programs took monthly instead of bi-monthly data. 0 false false RESTRICTED 1753294937937 Timing link suitability includes constraints ([Group (01 02) Within 1.0 days]) The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/5k/mhc4byc107347yt81lt7vj_40005fz/T/OPVisit16851995015615361603.xml (Tic-Visit :proposal-id 17952 :visit-id "01" :proposal-version -1 :trans-version "20250624" :date "23-Jul-2025 14:22:17.0" :trans-errors '(:WARNINGS 2 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 0.0 :data-volume 807344 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17952 :visit-id "01" :obset-id "01" :pcs-mode "GYRO" ) (Tic-Orbit :proposal-id 17952 :visit-id "01" :orbit-number 1 :pcs-time 0 :si-vis-utilization 0 :al-overhead-at-end 0 :internal-dur-at-end 1506 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) true 1 0 1753294938408 Timing link suitability includes constraints ([Group (01 02) Within 1.0 days]) The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/5k/mhc4byc107347yt81lt7vj_40005fz/T/OPVisit12600114574184108680.xml (Tic-Visit :proposal-id 17952 :visit-id "02" :proposal-version -1 :trans-version "20250624" :date "23-Jul-2025 14:22:18.0" :trans-errors '(:WARNINGS 3 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 0.0 :data-volume 1076464 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17952 :visit-id "02" :obset-id "02" :pcs-mode "GYRO" ) (Tic-Orbit :proposal-id 17952 :visit-id "02" :orbit-number 1 :pcs-time 0 :si-vis-utilization 0 :al-overhead-at-end 0 :internal-dur-at-end 2006 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) true 1 0 1753294938777 Timing link suitability includes constraints ([Group (03 04) Within 1.0 days]) The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/5k/mhc4byc107347yt81lt7vj_40005fz/T/OPVisit9958100930914362682.xml (Tic-Visit :proposal-id 17952 :visit-id "03" :proposal-version -1 :trans-version "20250624" :date "23-Jul-2025 14:22:18.0" :trans-errors '(:WARNINGS 2 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 0.0 :data-volume 807344 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17952 :visit-id "03" :obset-id "03" :pcs-mode "GYRO" ) (Tic-Orbit :proposal-id 17952 :visit-id "03" :orbit-number 1 :pcs-time 0 :si-vis-utilization 0 :al-overhead-at-end 0 :internal-dur-at-end 1506 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) true 1 0 1753294939194 Timing link suitability includes constraints ([Group (03 04) Within 1.0 days]) The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/5k/mhc4byc107347yt81lt7vj_40005fz/T/OPVisit10104563352824254056.xml (Tic-Visit :proposal-id 17952 :visit-id "04" :proposal-version -1 :trans-version "20250624" :date "23-Jul-2025 14:22:19.0" :trans-errors '(:WARNINGS 3 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 0.0 :data-volume 1076464 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17952 :visit-id "04" :obset-id "04" :pcs-mode "GYRO" ) (Tic-Orbit :proposal-id 17952 :visit-id "04" :orbit-number 1 :pcs-time 0 :si-vis-utilization 0 :al-overhead-at-end 0 :internal-dur-at-end 2006 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) true 1 0 1753294939566 Timing link suitability includes constraints ([Group (05 06) Within 1.0 days]) The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/5k/mhc4byc107347yt81lt7vj_40005fz/T/OPVisit3002114895263544993.xml (Tic-Visit :proposal-id 17952 :visit-id "05" :proposal-version -1 :trans-version "20250624" :date "23-Jul-2025 14:22:19.0" :trans-errors '(:WARNINGS 2 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 0.0 :data-volume 807344 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17952 :visit-id "05" :obset-id "05" :pcs-mode "GYRO" ) (Tic-Orbit :proposal-id 17952 :visit-id "05" :orbit-number 1 :pcs-time 0 :si-vis-utilization 0 :al-overhead-at-end 0 :internal-dur-at-end 1506 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) true 1 0 1753294939991 Timing link suitability includes constraints ([Group (05 06) Within 1.0 days]) The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/5k/mhc4byc107347yt81lt7vj_40005fz/T/OPVisit7655699113958124206.xml (Tic-Visit :proposal-id 17952 :visit-id "06" :proposal-version -1 :trans-version "20250624" :date "23-Jul-2025 14:22:19.0" :trans-errors '(:WARNINGS 3 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 0.0 :data-volume 1076464 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17952 :visit-id "06" :obset-id "06" :pcs-mode "GYRO" ) (Tic-Orbit :proposal-id 17952 :visit-id "06" :orbit-number 1 :pcs-time 0 :si-vis-utilization 0 :al-overhead-at-end 0 :internal-dur-at-end 2006 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) true 1 0 1753294940345 Timing link suitability includes constraints ([Group (07 08) Within 1.0 days]) The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/5k/mhc4byc107347yt81lt7vj_40005fz/T/OPVisit9221284606770304829.xml (Tic-Visit :proposal-id 17952 :visit-id "07" :proposal-version -1 :trans-version "20250624" :date "23-Jul-2025 14:22:20.0" :trans-errors '(:WARNINGS 2 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 0.0 :data-volume 807344 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17952 :visit-id "07" :obset-id "07" :pcs-mode "GYRO" ) (Tic-Orbit :proposal-id 17952 :visit-id "07" :orbit-number 1 :pcs-time 0 :si-vis-utilization 0 :al-overhead-at-end 0 :internal-dur-at-end 1506 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) true 1 0 1753294940759 Timing link suitability includes constraints ([Group (07 08) Within 1.0 days]) The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/5k/mhc4byc107347yt81lt7vj_40005fz/T/OPVisit5743616314522321786.xml (Tic-Visit :proposal-id 17952 :visit-id "08" :proposal-version -1 :trans-version "20250624" :date "23-Jul-2025 14:22:20.0" :trans-errors '(:WARNINGS 3 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 0.0 :data-volume 1076464 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17952 :visit-id "08" :obset-id "08" :pcs-mode "GYRO" ) (Tic-Orbit :proposal-id 17952 :visit-id "08" :orbit-number 1 :pcs-time 0 :si-vis-utilization 0 :al-overhead-at-end 0 :internal-dur-at-end 2006 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) true 1 0 1753294941125 Timing link suitability includes constraints ([Group (09 10) Within 1.0 days]) The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/5k/mhc4byc107347yt81lt7vj_40005fz/T/OPVisit16270889929881627869.xml (Tic-Visit :proposal-id 17952 :visit-id "09" :proposal-version -1 :trans-version "20250624" :date "23-Jul-2025 14:22:21.0" :trans-errors '(:WARNINGS 2 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 0.0 :data-volume 807344 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17952 :visit-id "09" :obset-id "09" :pcs-mode "GYRO" ) (Tic-Orbit :proposal-id 17952 :visit-id "09" :orbit-number 1 :pcs-time 0 :si-vis-utilization 0 :al-overhead-at-end 0 :internal-dur-at-end 1506 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) true 1 0 1753294941546 Timing link suitability includes constraints ([Group (09 10) Within 1.0 days]) The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/5k/mhc4byc107347yt81lt7vj_40005fz/T/OPVisit491248225396302995.xml (Tic-Visit :proposal-id 17952 :visit-id "10" :proposal-version -1 :trans-version "20250624" :date "23-Jul-2025 14:22:21.0" :trans-errors '(:WARNINGS 3 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 0.0 :data-volume 1076464 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17952 :visit-id "10" :obset-id "10" :pcs-mode "GYRO" ) (Tic-Orbit :proposal-id 17952 :visit-id "10" :orbit-number 1 :pcs-time 0 :si-vis-utilization 0 :al-overhead-at-end 0 :internal-dur-at-end 2006 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) true 1 0 1753294941920 Timing link suitability includes constraints ([Group (11 12) Within 1.0 days]) The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/5k/mhc4byc107347yt81lt7vj_40005fz/T/OPVisit3577174155185013433.xml (Tic-Visit :proposal-id 17952 :visit-id "11" :proposal-version -1 :trans-version "20250624" :date "23-Jul-2025 14:22:21.0" :trans-errors '(:WARNINGS 2 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 0.0 :data-volume 807344 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17952 :visit-id "11" :obset-id "11" :pcs-mode "GYRO" ) (Tic-Orbit :proposal-id 17952 :visit-id "11" :orbit-number 1 :pcs-time 0 :si-vis-utilization 0 :al-overhead-at-end 0 :internal-dur-at-end 1506 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) true 1 0 1753294942344 Timing link suitability includes constraints ([Group (11 12) Within 1.0 days]) The scheduling data was generated by CASM 33.1. CASM was run in Phase II mode. /private/var/folders/5k/mhc4byc107347yt81lt7vj_40005fz/T/OPVisit1097253061801981611.xml (Tic-Visit :proposal-id 17952 :visit-id "12" :proposal-version -1 :trans-version "20250624" :date "23-Jul-2025 14:22:22.0" :trans-errors '(:WARNINGS 3 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "29" :si-bright-earth-limb-angle 0.0 :data-volume 1076464 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17952 :visit-id "12" :obset-id "12" :pcs-mode "GYRO" ) (Tic-Orbit :proposal-id 17952 :visit-id "12" :orbit-number 1 :pcs-time 0 :si-vis-utilization 0 :al-overhead-at-end 0 :internal-dur-at-end 2006 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) true 1 0