The list of Investigators does not match the STScI records for this program. Submission 1 of Cycle 30 WFC3 IR grisms flux/trace calibration program 842995545 ----- Attempting Submission 1 (Thu Jul 14 20:16:30 GMT 2022) ----- Co-I changed in Cycle 30 WFC3 IR Grism Flux/Trace Calibration This program will observe GD-153, GD-71 and GRW+70 to verify the flux calibration near the center of the field (-20, 0) and a few other positions using the WFC3 IR G102 and G141 grisms. These calibrations will be compared with those derived from previous programs: 16583 (GD-153, GD-71, GRW+70), 16408 (GD-153, GD-71, GRW+70), 15728 (GD-153), 15587 (GD-153), 14994 (GD-153), 14544 (GD-153), 14386 (GD-153), 14024 (GD-71), 13579 (GD-153), 13092 (GD-153), 12702 (GD-71), 12357 (GD-71), 11937 (GD-71) to check for any time evolution. The data will also be used to calculate wavelength solutions for the grisms and to check for time dependent sensitivity evolution of the G102 and G141 observing modes. Observations of GD-153 to verify the flux calibration near the center of the field and at a few other previously observed positions using the WFC3 IR G102 and G141 grisms. These calibrations will be compared with those derived from previous programs. The data will also be used to calculate wavelength solutions for the grisms, and will be used to check time dependant sensitivity of G102 and G141 observing modes. Observations will be taken with postargs of (-20,-0) (-20,+15) (-20,-15) Observations of GD-71 to verify the flux calibration near the center of the field and at a few other previously observed positions using the WFC3 IR G102 and G141 grisms. These calibrations will be compared with those derived from previous programs. The data will also be used to calculate wavelength solutions for the grisms, and will be used to check time dependant sensitivity of G102 and G141 observing modes. Observations will be taken with postargs of (-20,-0) (-20,+15) (-20,-15) (-40,+0) Direct imaging done with only one imaging filter: F098M for G102 and F140W for G141 ORIENT restrictions applied to minimize contamination in this crowded field. Observations of GRW+70 to verify the flux calibration near the center of the field and at a few other previously observed positions using the WFC3 IR G102 and G141 grisms. These calibrations will be compared with those derived from previous programs. The data will also be used to calculate wavelength solutions for the grisms, and will be used to check time dependant sensitivity of G102 and G141 observing modes. Observations will be taken with postargs of (-20,-0) (-20,+15) (-20,-15) (-40,+0) Direct imaging done with only one imaging filter: F098M for G102 and F140W for G141 ORIENT restrictions applied to avoid contamination 0 false false RESTRICTED STAR DA According to ISR WFC3-2011-05, GD-153 is used as the primary flux calibrator for the WFC3 IR grisms. J2000 J2000 STAR DA GD-71 is a primary HST flux standard that has been used in the past to calibrate the NICMOS and ACS grism modes, which provides us with the ability to cross-calibrate between instruments. GD-71 is specifically chosen for the WFC3 IR grism calibration because it will provide an aditional flux calibration target (GD-153 is used in SMOV for the IR grism calibration), so that the calibration is not based on a single target. An additional calibration target also minimizes the potential for problems from other nearby sources in the field. J2000 J2000 CALIBRATION PHOTOMETRIC GRW+70 is a primary HST flux standard. GRW+70 is specifically chosen for the WFC3 IR grism calibration because it will provide an aditional flux calibration target (GD-153 is used in SMOV for the IR grism calibration), so that the calibration is not based on a single target. An additional calibration target also minimizes the potential for problems from other nearby sources in the field. HIP-66578 J2000 J = 13.25 The scheduling data was generated by CASM 30.3. CASM was run in Phase II mode. /Users/dsom/workarea/WFC3_projects/Cy30_cal/monitor/WFC3_IR_grism_fluxcal/OP-cache/17018-v01.xml Visit targetting GD153 (Tic-Visit :proposal-id 17018 :visit-id "01" :proposal-version -1 :trans-version "20220516" :date "12-Jul-2022 14:12:05.0" :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 1148960 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17018 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17018 :visit-id "01" :orbit-number 1 :pcs-time 383 :si-vis-utilization 2188 :al-overhead-at-end 0 :internal-dur-at-end 709 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3157 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 30.3. CASM was run in Phase II mode. /Users/dsom/workarea/WFC3_projects/Cy30_cal/monitor/WFC3_IR_grism_fluxcal/OP-cache/17018-v02.xml Visit targetting GD71 (Tic-Visit :proposal-id 17018 :visit-id "02" :proposal-version -1 :trans-version "20220516" :date "12-Jul-2022 14:12:29.0" :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 1253440 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17018 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17018 :visit-id "02" :orbit-number 1 :pcs-time 383 :si-vis-utilization 2419 :al-overhead-at-end 0 :internal-dur-at-end 709 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3156 :pcs-gap 0 ) true 1 0 The scheduling data was generated by CASM 30.3. CASM was run in Phase II mode. /Users/dsom/workarea/WFC3_projects/Cy30_cal/monitor/WFC3_IR_grism_fluxcal/OP-cache/17018-v03.xml Visit targetting GRW+70 (Tic-Visit :proposal-id 17018 :visit-id "03" :proposal-version -1 :trans-version "20220516" :date "12-Jul-2022 14:12:39.0" :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 1253440 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 17018 :visit-id "03" :obset-id "03" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 17018 :visit-id "03" :orbit-number 1 :pcs-time 383 :si-vis-utilization 2419 :al-overhead-at-end 0 :internal-dur-at-end 709 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3525 :pcs-gap 0 ) true 1 0