11424( 5) - 18-Feb-2009 14:05:47 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 11424 Version: 5 Check-in Time: 18-Feb-2009 14:05:47 STScI Edit Number: 2 Title WFC3 UVIS Initial Alignment ------------------------------------------------------------------------------------ Type Cycle SM4/WFC3 17 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. George Hartig Space Telescope Science Institute ------------------------------------------------------------------------------------ Abstract The corrector mechanism will be used to iteratively bring the UVIS channel of WFC3 into alignment with the OTA using phase retrieval of focus diverse star images over the field. Three visits are required; corrector offsets will be uplinked after each visit via realtime command. This proposal is activity id WFC3-11 ------------------------------------------------------------------------------------ Observations Description ------------------------ The UVIS corrector mechanism will be used to bring the instrument into alignment with the OTA using phase retrieval (PR) of focus diverse star images over the field. Corrector mirror tip/tilt (inner/outer cylinders) will be adjusted to align the OTA and UVIS pupils, and the focus drive will be used to obtain the PR images and optimize image focus. The observed field must be sufficiently dense to provide good sampling over the FOV while providing enough isolated stars to permit accurate PSF measurement. If the field is astrometric and astrometric guide stars are used, the plate scale and image orientation may also be determined. NGC-188 star 58 meets these requirements, is available year-round and was used previously for ACS alignment. The F410M filter will be used to limit the passband at relatively short wavelength for improved PR accuracy. Full frame CR-split images will be obtained at 5 focus positions. Three visits are required; corrector offsets will be uplinked after each visit via realtime command, no sooner than 24 hrs after receipt of full data set. A fourth visit is used for the final realtime uplink. Real Time Justification ----------------------- Realtime uplinks of the UVIS corrector settings needed to improve image quality are required after each visit and prior to the following alignment measurements, in order to iteratively progress to the optimized alignment. Uplinks should be scheduled no sooner than 24 hrs after receipt of data; requested corrector moves will be specified within 12 hrs after data receipt. Data should be fast-tracked through OPUS to permit timely analysis. Calibration Justification ------------------------- The image quality of all WFC3 UVIS science data relies on these alignment adjustments. 11424( 5) - 18-Feb-2009 14:05:47 - [ 2] Additional Comments ------------------- APT does not handle the realtime uplinks properly, including them in the visibility period. When properly scheduled, this proposal will fit within the alotted 6 orbits. ------------------------------------------------------------------------------------ 11424( 5) - 18-Feb-2009 14:05:47 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC188-58 STELLAR CLUSTER, OPEN RA=00H47M4.4540S +/- 0.1", J2000 V = 14.65 +/- 0.05 CLUSTER DEC=+85D16'32.70" +/- 0.1", PLATE-ID=ZZZZ Reference Frame: GSC1 Comments: Use guide stars from the NGC188 Astrometric Catalog (Plate-ID ZZZZ) Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 -0.00257 -0.0112 0.0 ------------------------------------------------------------------------------------------------------------------------------------ 11424( 5) - 18-Feb-2009 14:05:47 - [ 4] Visit: 01 Visit Requirements: On Hold Comments: Additional Comments: Schedule after WF06 UVIS Detector Functional, prop 11419 Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC188-58 WFC3/UVI ACCUM UVIS F410M CR-SPLIT=2 1 120 S GS ACQ SCENARIO BASE1BR S ------------------------------------------------------------------------------------------------------------------------------------ 2 NONE WFC3/UVI ALIGN FOCUS=-1000 1 10 S S ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC188-58 WFC3/UVI ACCUM UVIS F410M CR-SPLIT=2 1 120 S S ------------------------------------------------------------------------------------------------------------------------------------ 4 NONE WFC3/UVI ALIGN FOCUS=-500 1 10 S S ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC188-58 WFC3/UVI ACCUM UVIS F410M CR-SPLIT=2 1 120 S S ------------------------------------------------------------------------------------------------------------------------------------ 6 NONE WFC3/UVI ALIGN FOCUS=500 1 10 S S ------------------------------------------------------------------------------------------------------------------------------------ 7 NGC188-58 WFC3/UVI ACCUM UVIS F410M CR-SPLIT=2 1 120 S S ------------------------------------------------------------------------------------------------------------------------------------ 8 NONE WFC3/UVI ALIGN FOCUS=1000 1 10 S S ------------------------------------------------------------------------------------------------------------------------------------ 9 NGC188-58 WFC3/UVI ACCUM UVIS F410M CR-SPLIT=2 1 120 S S ------------------------------------------------------------------------------------------------------------------------------------ 10 NONE WFC3/UVI ALIGN FOCUS=0 1 10 S S Comments: Return to original focus setting ------------------------------------------------------------------------------------------------------------------------------------ 11 NGC188-58 WFC3/UVI ACCUM UVIS F410M CR-SPLIT=2 1 120 S S ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC188-58 1 WFC3/UVI ACCUM UVIS F410M none none none 1 1 N/A S 11424( 5) - 18-Feb-2009 14:05:47 - [ 5] 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC188-58 1 WFC3/UVI ACCUM UVIS F410M none none none 2 1 N/A S NONE 2 WFC3/UVI ALIGN none none none none 1 N/A S NGC188-58 3 WFC3/UVI ACCUM UVIS F410M none none none 1 1 N/A S NGC188-58 3 WFC3/UVI ACCUM UVIS F410M none none none 2 1 N/A S NONE 4 WFC3/UVI ALIGN none none none none 1 N/A S NGC188-58 5 WFC3/UVI ACCUM UVIS F410M none none none 1 1 N/A S NGC188-58 5 WFC3/UVI ACCUM UVIS F410M none none none 2 1 N/A S NONE 6 WFC3/UVI ALIGN none none none none 1 N/A S NGC188-58 7 WFC3/UVI ACCUM UVIS F410M none none none 1 2 N/A S NGC188-58 7 WFC3/UVI ACCUM UVIS F410M none none none 2 2 N/A S NONE 8 WFC3/UVI ALIGN none none none none 2 N/A S NGC188-58 9 WFC3/UVI ACCUM UVIS F410M none none none 1 2 N/A S NGC188-58 9 WFC3/UVI ACCUM UVIS F410M none none none 2 2 N/A S NONE 10 WFC3/UVI ALIGN none none none none 2 N/A S NGC188-58 11 WFC3/UVI ACCUM UVIS F410M none none none 1 2 N/A S NGC188-58 11 WFC3/UVI ACCUM UVIS F410M none none none 2 2 N/A S 11424( 5) - 18-Feb-2009 14:05:47 - [ 6] Visit: 02 Visit Requirements: AFTER 01 BY 48 H TO 96 H 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| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NONE WFC3/UVI ALIGN 1 0 S REQ UPLINK S Comments: Begin with uplink to set focus and cylinder positions of UVIS corrector with up to three ICORREL commands. ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC188-58 WFC3/UVI ACCUM UVIS F410M CR-SPLIT=2 1 120 S S ------------------------------------------------------------------------------------------------------------------------------------ 3 NONE WFC3/UVI ALIGN FOCUS=-1000 1 10 S S ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC188-58 WFC3/UVI ACCUM UVIS F410M CR-SPLIT=2 1 120 S S ------------------------------------------------------------------------------------------------------------------------------------ 5 NONE WFC3/UVI ALIGN FOCUS=-500 1 10 S S ------------------------------------------------------------------------------------------------------------------------------------ 6 NGC188-58 WFC3/UVI ACCUM UVIS F410M CR-SPLIT=2 1 120 S S ------------------------------------------------------------------------------------------------------------------------------------ 7 NONE WFC3/UVI ALIGN FOCUS=500 1 10 S S ------------------------------------------------------------------------------------------------------------------------------------ 8 NGC188-58 WFC3/UVI ACCUM UVIS F410M CR-SPLIT=2 1 120 S S ------------------------------------------------------------------------------------------------------------------------------------ 9 NONE WFC3/UVI ALIGN FOCUS=1000 1 10 S S ------------------------------------------------------------------------------------------------------------------------------------ 10 NGC188-58 WFC3/UVI ACCUM UVIS F410M CR-SPLIT=2 1 120 S S ------------------------------------------------------------------------------------------------------------------------------------ 11 NONE WFC3/UVI ALIGN FOCUS=0 1 10 S S Comments: Return to original focus setting ------------------------------------------------------------------------------------------------------------------------------------ 12 NGC188-58 WFC3/UVI ACCUM UVIS F410M CR-SPLIT=2 1 120 S S ------------------------------------------------------------------------------------------------------------------------------------ 11424( 5) - 18-Feb-2009 14:05:47 - [ 7] 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 | ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ NONE 1 WFC3/UVI ALIGN none none none none 1 N/A S NGC188-58 2 WFC3/UVI ACCUM UVIS F410M none none none 1 1 N/A S NGC188-58 2 WFC3/UVI ACCUM UVIS F410M none none none 2 1 N/A S NONE 3 WFC3/UVI ALIGN none none none none 1 N/A S NGC188-58 4 WFC3/UVI ACCUM UVIS F410M none none none 1 1 N/A S NGC188-58 4 WFC3/UVI ACCUM UVIS F410M none none none 2 1 N/A S NONE 5 WFC3/UVI ALIGN none none none none 1 N/A S NGC188-58 6 WFC3/UVI ACCUM UVIS F410M none none none 1 2 N/A S NGC188-58 6 WFC3/UVI ACCUM UVIS F410M none none none 2 2 N/A S NONE 7 WFC3/UVI ALIGN none none none none 2 N/A S NGC188-58 8 WFC3/UVI ACCUM UVIS F410M none none none 1 2 N/A S NGC188-58 8 WFC3/UVI ACCUM UVIS F410M none none none 2 2 N/A S NONE 9 WFC3/UVI ALIGN none none none none 2 N/A S NGC188-58 10 WFC3/UVI ACCUM UVIS F410M none none none 1 2 N/A S NGC188-58 10 WFC3/UVI ACCUM UVIS F410M none none none 2 2 N/A S NONE 11 WFC3/UVI ALIGN none none none none 2 N/A S NGC188-58 12 WFC3/UVI ACCUM UVIS F410M none none none 1 3 N/A S NGC188-58 12 WFC3/UVI ACCUM UVIS F410M none none none 2 3 N/A S 11424( 5) - 18-Feb-2009 14:05:47 - [ 8] Visit: 03 Visit Requirements: AFTER 02 BY 48 H TO 96 H 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| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NONE WFC3/UVI ALIGN 1 0 S REQ UPLINK S Comments: Begin with uplink to set focus and cylinder positions of UVIS corrector with up to three ICORREL commands. ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC188-58 WFC3/UVI ACCUM UVIS F410M CR-SPLIT=2 1 120 S S ------------------------------------------------------------------------------------------------------------------------------------ 3 NONE WFC3/UVI ALIGN FOCUS=-1000 1 10 S S ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC188-58 WFC3/UVI ACCUM UVIS F410M CR-SPLIT=2 1 120 S S ------------------------------------------------------------------------------------------------------------------------------------ 5 NONE WFC3/UVI ALIGN FOCUS=-500 1 10 S S ------------------------------------------------------------------------------------------------------------------------------------ 6 NGC188-58 WFC3/UVI ACCUM UVIS F410M CR-SPLIT=2 1 120 S S ------------------------------------------------------------------------------------------------------------------------------------ 7 NONE WFC3/UVI ALIGN FOCUS=500 1 10 S S ------------------------------------------------------------------------------------------------------------------------------------ 8 NGC188-58 WFC3/UVI ACCUM UVIS F410M CR-SPLIT=2 1 120 S S ------------------------------------------------------------------------------------------------------------------------------------ 9 NONE WFC3/UVI ALIGN FOCUS=1000 1 10 S S ------------------------------------------------------------------------------------------------------------------------------------ 10 NGC188-58 WFC3/UVI ACCUM UVIS F410M CR-SPLIT=2 1 120 S S ------------------------------------------------------------------------------------------------------------------------------------ 11 NONE WFC3/UVI ALIGN FOCUS=0 1 10 S S Comments: Return to original focus setting ------------------------------------------------------------------------------------------------------------------------------------ 12 NGC188-58 WFC3/UVI ACCUM UVIS F410M CR-SPLIT=2 1 120 S S ------------------------------------------------------------------------------------------------------------------------------------ 11424( 5) - 18-Feb-2009 14:05:47 - [ 9] 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 | ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ NONE 1 WFC3/UVI ALIGN none none none none 1 N/A S NGC188-58 2 WFC3/UVI ACCUM UVIS F410M none none none 1 1 N/A S NGC188-58 2 WFC3/UVI ACCUM UVIS F410M none none none 2 1 N/A S NONE 3 WFC3/UVI ALIGN none none none none 1 N/A S NGC188-58 4 WFC3/UVI ACCUM UVIS F410M none none none 1 1 N/A S NGC188-58 4 WFC3/UVI ACCUM UVIS F410M none none none 2 1 N/A S NONE 5 WFC3/UVI ALIGN none none none none 1 N/A S NGC188-58 6 WFC3/UVI ACCUM UVIS F410M none none none 1 2 N/A S NGC188-58 6 WFC3/UVI ACCUM UVIS F410M none none none 2 2 N/A S NONE 7 WFC3/UVI ALIGN none none none none 2 N/A S NGC188-58 8 WFC3/UVI ACCUM UVIS F410M none none none 1 2 N/A S NGC188-58 8 WFC3/UVI ACCUM UVIS F410M none none none 2 2 N/A S NONE 9 WFC3/UVI ALIGN none none none none 2 N/A S NGC188-58 10 WFC3/UVI ACCUM UVIS F410M none none none 1 2 N/A S NGC188-58 10 WFC3/UVI ACCUM UVIS F410M none none none 2 2 N/A S NONE 11 WFC3/UVI ALIGN none none none none 2 N/A S NGC188-58 12 WFC3/UVI ACCUM UVIS F410M none none none 1 3 N/A S NGC188-58 12 WFC3/UVI ACCUM UVIS F410M none none none 2 3 N/A S 11424( 5) - 18-Feb-2009 14:05:47 - [ 10] Visit: 04 Visit Requirements: AFTER 03 BY 48 H TO 96 H 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| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NONE WFC3/UVI ALIGN 1 0 S REQ UPLINK S Comments: Uplink offsets to UVIS focus and cylinder settings with up to three ICORREL commands. ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ NONE 1 WFC3/UVI ALIGN none none none none 1 N/A S 11424( 5) - 18-Feb-2009 14:05:47 - [ 11] Summary Form for Proposal 11424 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures UVIS ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC3/UVIS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, ALIGN ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=2, FOCUS=-1000, FOCUS=-500, FOCUS=0, FOCUS=1000, FOCUS=500 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements AFTER 01 BY 48 H TO 96 H, AFTER 02 BY 48 H TO 96 H, AFTER 03 BY 48 H TO 96 H, GS ACQ SCENARIO BASE1BR, REQ UPLINK ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F410M ------------------------------------------------------------------------------------------------------------------------------------ Target Names NGC188-58, NONE ------------------------------------------------------------------------------------------------------------------------------------