16406( 3) - 13-Aug-2020 18:58:04 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 16406 Version: 3 Check-in Time: 13-Aug-2020 18:58:04 STScI Edit Number: 2 Title WFC3 UVIS Shutter Monitoring ------------------------------------------------------------------------------------ Type Cycle CAL/WFC3 28 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Kailash C. Sahu Space Telescope Science Institute Y CoI: Dr. Sylvia M. Baggett Space Telescope Science Institute Y ------------------------------------------------------------------------------------ Abstract We monitor the WFC3 UVIS shutter performance. The exposures need to be identical to previous cycles. Images with exposure times ranging from 0.5 to 17 seconds will be used to compare the photometric behavior of each shutter blade, for short vs long exposures and check for shutter shading effects. Internal flats in each of the 4 amps will be used to monitor the repeatability and shutter shading effects. We will continue to monitor the photometric behavior of blades A and B separately. ------------------------------------------------------------------------------------ Observations Description ------------------------ cal ------------------------------------------------------------------------------------ 16406( 3) - 13-Aug-2020 18:58:04 - [ 2] Visit: 01 Visit Requirements: GYRO MODE 3GOBAD; BETWEEN 01-MAR-2021:00:00:00 AND 01-JUL-2021:00:00:00 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 TUNGSTEN WFC3/UVI ACCUM UVIS F555W 2 0.5 S (1 S S) Comments: This assumes Tungsten lamp 3. (2800 e-/sec/pix through F555W in TV3 testing) ------------------------------------------------------------------------------------------------------------------------------------ 2 TUNGSTEN WFC3/UVI ACCUM UVIS F555W 2 1.0 S (2 S S) Comments: This assumes Tungsten lamp 3. (2800 e-/sec/pix through F555W in TV3 testing) ------------------------------------------------------------------------------------------------------------------------------------ 3 TUNGSTEN WFC3/UVI ACCUM UVIS F555W 2 17 S (34 S S) Comments: This assumes Tungsten lamp 3. (2800 e-/sec/pix through F555W in TV3 testing) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ TUNGSTEN 1 WFC3/UVI ACCUM UVIS F555W none none 1 none 1 N/A S TUNGSTEN 1 WFC3/UVI ACCUM UVIS F555W none none 2 none 1 N/A S TUNGSTEN 2 WFC3/UVI ACCUM UVIS F555W none none 1 none 1 N/A S TUNGSTEN 2 WFC3/UVI ACCUM UVIS F555W none none 2 none 1 N/A S TUNGSTEN 3 WFC3/UVI ACCUM UVIS F555W none none 1 none 1 N/A S TUNGSTEN 3 WFC3/UVI ACCUM UVIS F555W none none 2 none 1 N/A S 16406( 3) - 13-Aug-2020 18:58:04 - [ 3] Summary Form for Proposal 16406 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures UVIS ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements BETWEEN 01-MAR-2021:00:00:00 AND 01-JUL-2021:00:00:00, GYRO MODE 3GOBAD ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F555W ------------------------------------------------------------------------------------------------------------------------------------ Target Names TUNGSTEN ------------------------------------------------------------------------------------------------------------------------------------