12355( 3) - 11-Oct-2010 14:55:58 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 12355 Version: 3 Check-in Time: 11-Oct-2010 14:55:58 STScI Edit Number: 1 Title IR Grism Wavelength and LSF Calibration ------------------------------------------------------------------------------------ Type Cycle CAL/WFC3 18 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Norbert Pirzkal Space Telescope Science Institute CoI: Dr. Howard A. Bushouse Space Telescope Science Institute N ------------------------------------------------------------------------------------ Abstract The Cycle 17 wavelength calibration proposals observed two Galactic planetary nebulae (PN) that, although compact, are resolved by WFC3 NIR. The derived dispersion solutions should be accurate but the zero point of the wavelength scale is sensitive to the derived center of the image of the object used for the wavelength reference point. In addition since the PN are resolved, the true spectral line spread function cannot be derived. A more distant PN, that is a true point source, is proposed as a target. Choosing a bright PN in M31 will ensure that its size is <~ 0.1arcsec, making it an excellent target for a determination of the wavelength zero point. Measuring the width of emission lines as a function of wavelength will give unique information on the wavelength dependence of the line spread function. ------------------------------------------------------------------------------------ Observations Description ------------------------ tbd Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 12355( 3) - 11-Oct-2010 14:55:58 - [ 2] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 M31-363 STAR, PLANETARY NEBULA RA=00H46M59.3200S +/- 0.1", J2000 V = 22.2 CENTRAL STAR DEC=+42D37'57.60" +/- 0.1" Reference Frame: ICRS Comments: ------------------------------------------------------------------------------------------------------------------------------------ 12355( 3) - 11-Oct-2010 14:55:58 - [ 3] Visit: 01 Visit Requirements: ORIENT 290D TO 60 D; ORIENT 110D TO 240 D 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 M31-363 WFC3/IR MULTIAC G102-REF F098M SAMP-SEQ=SPARS10, NSAMP=7 1 DEF POS TARG -20.0, 0.0 CUM ------------------------------------------------------------------------------------------------------------------------------------ 2 M31-363 WFC3/IR MULTIAC G102-REF F105W SAMP-SEQ=SPARS10, NSAMP=7 1 DEF POS TARG -20.0, 0.0 CUM ------------------------------------------------------------------------------------------------------------------------------------ 3 M31-363 WFC3/IR MULTIAC IR G102 SAMP-SEQ=SPARS50, NSAMP=13 1 DEF POS TARG -20.0, 0.0 CUM ------------------------------------------------------------------------------------------------------------------------------------ 4 M31-363 WFC3/IR MULTIAC IR G102 SAMP-SEQ=SPARS50, NSAMP=13 1 DEF POS TARG -20.5, 0.5 CUM ------------------------------------------------------------------------------------------------------------------------------------ 5 M31-363 WFC3/IR MULTIAC IR G102 SAMP-SEQ=SPARS50, NSAMP=13 1 DEF POS TARG -21.0, 1.0 CUM ------------------------------------------------------------------------------------------------------------------------------------ 6 M31-363 WFC3/IR MULTIAC IR G102 SAMP-SEQ=SPARS50, NSAMP=13 1 DEF POS TARG -21.2, 1.2 CUM ------------------------------------------------------------------------------------------------------------------------------------ 7 M31-363 WFC3/IR MULTIAC IR G102 SAMP-SEQ=SPARS100, NSAMP=8 1 DEF POS TARG -20.0, 0.0 CUM ------------------------------------------------------------------------------------------------------------------------------------ 8 M31-363 WFC3/IR MULTIAC IR G102 SAMP-SEQ=SPARS100, NSAMP=8 1 DEF POS TARG -20.5, 0.5 CUM ------------------------------------------------------------------------------------------------------------------------------------ 9 M31-363 WFC3/IR MULTIAC IR G102 SAMP-SEQ=SPARS100, NSAMP=8 1 DEF POS TARG -21.0, 1.0 CUM ------------------------------------------------------------------------------------------------------------------------------------ 10 M31-363 WFC3/IR MULTIAC IR G102 SAMP-SEQ=SPARS100, NSAMP=8 1 DEF POS TARG -21.2, 1.2 CUM ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ M31-363 1 WFC3/IR MULTIAC G102-REF F098M none none none none 1 N/A CUM M31-363 2 WFC3/IR MULTIAC G102-REF F105W none none none none 1 N/A CUM M31-363 3 WFC3/IR MULTIAC IR G102 none none none none 1 N/A CUM 12355( 3) - 11-Oct-2010 14:55:58 - [ 4] 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 | ------------------------------------------------------------------------------------------------------------------------------------ M31-363 4 WFC3/IR MULTIAC IR G102 none none none none 1 N/A CUM M31-363 5 WFC3/IR MULTIAC IR G102 none none none none 1 N/A CUM M31-363 6 WFC3/IR MULTIAC IR G102 none none none none 1 N/A CUM M31-363 7 WFC3/IR MULTIAC IR G102 none none none none 2 N/A CUM M31-363 8 WFC3/IR MULTIAC IR G102 none none none none 2 N/A CUM M31-363 9 WFC3/IR MULTIAC IR G102 none none none none 2 N/A CUM M31-363 10 WFC3/IR MULTIAC IR G102 none none none none 2 N/A CUM 12355( 3) - 11-Oct-2010 14:55:58 - [ 5] Visit: 02 Visit Requirements: ORIENT 290D TO 60 D; ORIENT 110D TO 240 D On Hold Comments: Additional Comments: PN Vy2-2 for wavelength calibration of G141; 3x3 pattern to fill FoV. The observations at each field point consist of exposures in F140W, F160W, and G141. Four G141 exposures are obtained at the central FOV position, using postargs to manually create a small dither pattern. Single exposures in each spectral element are used at the other field points. All field points use postargs to place the target relative to the default target location for the "IR" aperture, which is the only aperture available for use with the grisms. The direct exposures use the same offsets from the "G141-REF" aperture, which is coincident with the "IR" aperture. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 M31-363 WFC3/IR MULTIAC G141-REF F140W SAMP-SEQ=SPARS10, NSAMP=7 1 DEF POS TARG -20.0, 0.0 CUM ------------------------------------------------------------------------------------------------------------------------------------ 2 M31-363 WFC3/IR MULTIAC G141-REF F160W SAMP-SEQ=SPARS10, NSAMP=7 1 DEF POS TARG -20.0, 0.0 CUM ------------------------------------------------------------------------------------------------------------------------------------ 3 M31-363 WFC3/IR MULTIAC IR G141 SAMP-SEQ=SPARS50, NSAMP=13 1 DEF POS TARG -20.0, 0.0 CUM ------------------------------------------------------------------------------------------------------------------------------------ 4 M31-363 WFC3/IR MULTIAC IR G141 SAMP-SEQ=SPARS50, NSAMP=13 1 DEF POS TARG -20.5, 0.5 CUM ------------------------------------------------------------------------------------------------------------------------------------ 5 M31-363 WFC3/IR MULTIAC IR G141 SAMP-SEQ=SPARS50, NSAMP=13 1 DEF POS TARG -21.0, 1.0 CUM ------------------------------------------------------------------------------------------------------------------------------------ 6 M31-363 WFC3/IR MULTIAC IR G141 SAMP-SEQ=SPARS50, NSAMP=13 1 DEF POS TARG -21.2, 1.2 CUM ------------------------------------------------------------------------------------------------------------------------------------ 7 M31-363 WFC3/IR MULTIAC IR G141 SAMP-SEQ=SPARS100, NSAMP=8 1 DEF POS TARG -20.0, 0.0 CUM ------------------------------------------------------------------------------------------------------------------------------------ 8 M31-363 WFC3/IR MULTIAC IR G141 SAMP-SEQ=SPARS100, NSAMP=8 1 DEF POS TARG -20.5, 0.5 CUM ------------------------------------------------------------------------------------------------------------------------------------ 9 M31-363 WFC3/IR MULTIAC IR G141 SAMP-SEQ=SPARS100, NSAMP=8 1 DEF POS TARG -21.0, 1.0 CUM ------------------------------------------------------------------------------------------------------------------------------------ 10 M31-363 WFC3/IR MULTIAC IR G141 SAMP-SEQ=SPARS100, NSAMP=8 1 DEF POS TARG -21.2, 1.2 CUM ------------------------------------------------------------------------------------------------------------------------------------ 12355( 3) - 11-Oct-2010 14:55:58 - [ 6] 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 | ------------------------------------------------------------------------------------------------------------------------------------ M31-363 1 WFC3/IR MULTIAC G141-REF F140W none none none none 1 N/A CUM M31-363 2 WFC3/IR MULTIAC G141-REF F160W none none none none 1 N/A CUM M31-363 3 WFC3/IR MULTIAC IR G141 none none none none 1 N/A CUM M31-363 4 WFC3/IR MULTIAC IR G141 none none none none 1 N/A CUM M31-363 5 WFC3/IR MULTIAC IR G141 none none none none 1 N/A CUM M31-363 6 WFC3/IR MULTIAC IR G141 none none none none 1 N/A CUM M31-363 7 WFC3/IR MULTIAC IR G141 none none none none 2 N/A CUM M31-363 8 WFC3/IR MULTIAC IR G141 none none none none 2 N/A CUM M31-363 9 WFC3/IR MULTIAC IR G141 none none none none 2 N/A CUM M31-363 10 WFC3/IR MULTIAC IR G141 none none none none 2 N/A CUM 12355( 3) - 11-Oct-2010 14:55:58 - [ 7] Summary Form for Proposal 12355 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures G102-REF, G141-REF, IR ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC3/IR ------------------------------------------------------------------------------------------------------------------------------------ Opmodes MULTIACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters NSAMP=13, NSAMP=7, NSAMP=8, SAMP-SEQ=SPARS10, SAMP-SEQ=SPARS100, SAMP-SEQ=SPARS50 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ORIENT 110D TO 240 D, ORIENT 290D TO 60 D, POS TARG -20.0, 0.0, POS TARG -20.5, 0.5, POS TARG -21.0, 1.0, POS TARG -21.2, 1.2 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F098M, F105W, F140W, F160W, G102, G141 ------------------------------------------------------------------------------------------------------------------------------------ Target Names M31-363 ------------------------------------------------------------------------------------------------------------------------------------