11147( 5) - 20-May-2008 13:30:54 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 11147 Version: 5 Check-in Time: 20-May-2008 13:30:54 STScI Edit Number: 2 Title The Origin of Diffuse UV Light from Spiral Disks ------------------------------------------------------------------------------------ Type Cycle Parallel Pointing Tolerance GO 16 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Rupali Chandar Carnegie Institution of Washington CoI: Dr. Claus Leitherer Space Telescope Science Institute N CoI: Dr. Daniela Calzetti University of Massachusetts N CoI: Dr. Cristina Popescu Carnegie Institution of Washington N CoI: Dr. R. J. Tuffs Max-Planck-Institut fur Astronomie, N Heidelberg CoI: Dr. Benne Willem Holwerda Space Telescope Science Institute N ------------------------------------------------------------------------------------ Abstract The ultraviolet light from galaxies has been used as a beacon for tracing the cosmic star formation history of the Universe, yet we have an incomplete understandingof many characteristics of this light. Most of the UV emission from nearby, normal star--forming galaxies is unresolved and "diffuse", and GALEX has shown that in spiral disks it permeates the inter-arm regions. The nature of this diffuse inter-arm component is under debate. Recent results suggest that it may arise from non-ionizing UV photons which originate in star forming regions in the spiral arms, travel in the plane of the galaxy, and then scatter off of diffusely distributed cold dust grains. Alternatively, an in-situ, unresolved stellar population could produce the observed inter-arm UV emission. This project seeks to establish which of the two competing scenarios is responsible for the bulk of this diffuse emission. We propose to use HST's UV imaging capability (ACS/SBC) to obtain deep observations of selected fields in the nearby spiral galaxy M101, for which available (low angular resolution) data favor the 'scattered light' scenario. Our observations are designed to detect any faint, UV-luminous stellar population down to main sequence B5 stars. With these data, we will establish the nature of the bulk of the diffuse UV light in this spiral galaxy by: (i) quantifying the contribution from dust-scattered light; (ii) measuring the contribution to the ubiquitous diffuse ionized medium from in-situ ionizing stars; and (iii) providing constraints on the observed stellar mass function in the field. Only HST has the UV sensitivity and angular resolution to discriminate in-situ stellar populations from scattered light. The ultimate goal of this project is to re-'calibrate' the UV emission as a star formation rate indicator, which will need to account for any scattered component. ------------------------------------------------------------------------------------ Observations Description ------------------------ We request ACS/SBC F150LP primary imaging of 2 inter-arm fields in M101, with NICMOS/NIC3 H band parallel imaging. The fields have been chosen such that at the specified Galactocentric radii the disk is not too optically thick (which will hinder the observation of the individual stars) but not too optically thin (since there will then be not sufficient dust to give rise to the putative scattered light component). 11147( 5) - 20-May-2008 13:30:54 - [ 2] (2) We choose the two fields just "upstream" and "downstream" of major spiral arms with prominent star-formation complexes, such that the SBC fields extend from the edge of the arms outwards (for a 29 x 26 arcsec aperture) and contain apparently diffuse UV emission on the GALEX images. Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 11147( 5) - 20-May-2008 13:30:54 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 M101-UV-POS1 ISM, UNDESIGNATED, RA=14H03M27.5800S +/- 0.1", J2000 V = 23 ABSORPTION LINE SYSTEM DEC=+54D16'42.00" +/- 0.1" Reference Frame: ICRS Comments: ------------------------------------------------------------------------------------------------------------------------------------ 2 M101-UV-POS2 ISM, UNDESIGNATED RA=14H02M32.5300S +/- 0.1", J2000 V = 23 DEC=+54D19'29.70" +/- 0.1" Reference Frame: ICRS Comments: ------------------------------------------------------------------------------------------------------------------------------------ 3 M101-UV-POS1 ISM, UNDESIGNATED RA=14H02M37.8700S +/- 0.1", J2000 V = 23 -NEW DEC=+54D17'14.80" +/- 0.1" Reference Frame: ICRS Comments: ------------------------------------------------------------------------------------------------------------------------------------ 4 M101-UV-POS2 ISM, UNDESIGNATED RA=14H03M36.0255S +/- 0.1", J2000 V = 23 -NEW DEC=+54D17'17.73" +/- 0.1" Reference Frame: ICRS Comments: ------------------------------------------------------------------------------------------------------------------------------------ 11147( 5) - 20-May-2008 13:30:54 - [ 4] Patterns ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 1 Primary_Pattern Secondary_Pattern Pattern_Type ACS-SBC-DITHER-BOX Pattern_Purpose DITHER Number_Of_Points 4 Point_Spacing 0.179 Line_Spacing 0.116 Coordinate_Frame POS-TARG Pattern_Orient 20.02 Angle_Between_Sides 63.65 Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ Pattern_Number: 2 Primary_Pattern Secondary_Pattern Pattern_Type ACS-SBC-DITHER-LINE Pattern_Purpose DITHER Number_Of_Points 3 Point_Spacing 0.472 Line_Spacing Coordinate_Frame POS-TARG Pattern_Orient 44.4 Angle_Between_Sides Center_Pattern NO ------------------------------------------------------------------------------------------------------------------------------------ 11147( 5) - 20-May-2008 13:30:54 - [ 5] Visit: 01 Visit Priority: Visit Requirements: 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 M101-UV-POS ACS/SBC ACCUM SBC-FIX F150LP 1 750.0 S PATTERN 2 1-2; PAR 2 1-NEW WITH 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 ANY NIC3 MULTIAC NIC3 F160W NSAMP=14, SAMP-SEQ=SPARS64 1 DEF CUM ------------------------------------------------------------------------------------------------------------------------------------ 3 M101-UV-POS ACS/SBC ACCUM SBC-FIX F150LP 1 300.0 S PAR 4 WITH 3 1-NEW ------------------------------------------------------------------------------------------------------------------------------------ 4 ANY NIC3 MULTIAC NIC3-FIX F160W SAMP-SEQ=SPARS64, NSAMP=7 1 DEF CUM ------------------------------------------------------------------------------------------------------------------------------------ 5 M101-UV-POS ACS/SBC ACCUM SBC-FIX F150LP 1 300.0 S POS TARG -0.078, -0.078; 1-NEW PAR 6 WITH 5 ------------------------------------------------------------------------------------------------------------------------------------ 6 ANY NIC3 MULTIAC NIC3-FIX F160W SAMP-SEQ=SPARS64, NSAMP=7 1 DEF CUM ------------------------------------------------------------------------------------------------------------------------------------ 7 M101-UV-POS ACS/SBC ACCUM SBC-FIX F150LP 1 750.0 S POS TARG -0.078, 0.078; 1-NEW PATTERN 2 7-8; PAR 8 WITH 7 ------------------------------------------------------------------------------------------------------------------------------------ 8 ANY NIC3 MULTIAC NIC3 F160W NSAMP=14, SAMP-SEQ=SPARS64 1 DEF CUM ------------------------------------------------------------------------------------------------------------------------------------ 9 M101-UV-POS ACS/SBC ACCUM SBC-FIX F150LP 1 750.0 S POS TARG -0.078, -0.078; 1-NEW PATTERN 2 9-10; PAR 10 WITH 9 ------------------------------------------------------------------------------------------------------------------------------------ 10 ANY NIC3 MULTIAC NIC3 F160W NSAMP=14, SAMP-SEQ=SPARS64 1 DEF CUM ------------------------------------------------------------------------------------------------------------------------------------ 11 M101-UV-POS ACS/SBC ACCUM SBC-FIX F150LP 1 300.0 S POS TARG -0.078, -0.078; 1-NEW PAR 12 WITH 11 ------------------------------------------------------------------------------------------------------------------------------------ 12 ANY NIC3 MULTIAC NIC3-FIX F160W SAMP-SEQ=SPARS64, NSAMP=7 1 DEF CUM ------------------------------------------------------------------------------------------------------------------------------------ 13 M101-UV-POS ACS/SBC ACCUM SBC-FIX F150LP 1 750.0 S POS TARG -0.157, 0.0; 1-NEW PATTERN 2 13-14; PAR 14 WITH 13 11147( 5) - 20-May-2008 13:30:54 - [ 6] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ 14 ANY NIC3 MULTIAC NIC3 F160W NSAMP=14, SAMP-SEQ=SPARS64 1 DEF CUM ------------------------------------------------------------------------------------------------------------------------------------ 15 M101-UV-POS ACS/SBC ACCUM SBC-FIX F150LP 1 300.0 S POS TARG -0.157, 0.0; 1-NEW PAR 16 WITH 15 ------------------------------------------------------------------------------------------------------------------------------------ 16 ANY NIC3 MULTIAC NIC3-FIX F160W SAMP-SEQ=SPARS64, NSAMP=7 1 DEF 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 | ------------------------------------------------------------------------------------------------------------------------------------ M101-UV-POS1-NEW 1 ACS/SBC ACCUM SBC-FIX F150LP 1 none none none 1 N/A M101-UV-POS1-NEW 1 ACS/SBC ACCUM SBC-FIX F150LP 2 none none none 1 N/A M101-UV-POS1-NEW 1 ACS/SBC ACCUM SBC-FIX F150LP 3 none none none 1 N/A ANY 2 NIC3 MULTIAC NIC3 F160W 1 none none none 1 N/A CUM ANY 2 NIC3 MULTIAC NIC3 F160W 2 none none none 1 N/A CUM ANY 2 NIC3 MULTIAC NIC3 F160W 3 none none none 1 N/A CUM M101-UV-POS1-NEW 3 ACS/SBC ACCUM SBC-FIX F150LP none none none none 1 N/A ANY 4 NIC3 MULTIAC NIC3-FIX F160W none none none none 1 N/A CUM M101-UV-POS1-NEW 5 ACS/SBC ACCUM SBC-FIX F150LP none none none none 2 N/A ANY 6 NIC3 MULTIAC NIC3-FIX F160W none none none none 2 N/A CUM M101-UV-POS1-NEW 7 ACS/SBC ACCUM SBC-FIX F150LP 1 none none none 2 N/A M101-UV-POS1-NEW 7 ACS/SBC ACCUM SBC-FIX F150LP 2 none none none 2 N/A M101-UV-POS1-NEW 7 ACS/SBC ACCUM SBC-FIX F150LP 3 none none none 2 N/A ANY 8 NIC3 MULTIAC NIC3 F160W 1 none none none 2 N/A CUM ANY 8 NIC3 MULTIAC NIC3 F160W 2 none none none 2 N/A CUM ANY 8 NIC3 MULTIAC NIC3 F160W 3 none none none 2 N/A CUM M101-UV-POS1-NEW 9 ACS/SBC ACCUM SBC-FIX F150LP 1 none none none 3 N/A M101-UV-POS1-NEW 9 ACS/SBC ACCUM SBC-FIX F150LP 2 none none none 3 N/A M101-UV-POS1-NEW 9 ACS/SBC ACCUM SBC-FIX F150LP 3 none none none 3 N/A ANY 10 NIC3 MULTIAC NIC3 F160W 1 none none none 3 N/A CUM ANY 10 NIC3 MULTIAC NIC3 F160W 2 none none none 3 N/A CUM 11147( 5) - 20-May-2008 13:30:54 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ ANY 10 NIC3 MULTIAC NIC3 F160W 3 none none none 3 N/A CUM M101-UV-POS1-NEW 11 ACS/SBC ACCUM SBC-FIX F150LP none none none none 3 N/A ANY 12 NIC3 MULTIAC NIC3-FIX F160W none none none none 3 N/A CUM M101-UV-POS1-NEW 13 ACS/SBC ACCUM SBC-FIX F150LP 1 none none none 4 N/A M101-UV-POS1-NEW 13 ACS/SBC ACCUM SBC-FIX F150LP 2 none none none 4 N/A M101-UV-POS1-NEW 13 ACS/SBC ACCUM SBC-FIX F150LP 3 none none none 4 N/A ANY 14 NIC3 MULTIAC NIC3 F160W 1 none none none 4 N/A CUM ANY 14 NIC3 MULTIAC NIC3 F160W 2 none none none 4 N/A CUM ANY 14 NIC3 MULTIAC NIC3 F160W 3 none none none 4 N/A CUM M101-UV-POS1-NEW 15 ACS/SBC ACCUM SBC-FIX F150LP none none none none 4 N/A ANY 16 NIC3 MULTIAC NIC3-FIX F160W none none none none 4 N/A CUM 11147( 5) - 20-May-2008 13:30:54 - [ 8] Visit: 02 Visit Priority: Visit Requirements: ORIENT 358.0D TO 2.0 D; ORIENT 88.0D TO 92.0 D; ORIENT 178.0D TO 182.0 D; ORIENT 268.0D TO 272.0 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 M101-UV-POS ACS/SBC ACCUM SBC-FIX F150LP 1 300.0 S 2-NEW ------------------------------------------------------------------------------------------------------------------------------------ 2 M101-UV-POS ACS/SBC ACCUM SBC-FIX F150LP 1 750.0 S PATTERN 2 2 2-NEW ------------------------------------------------------------------------------------------------------------------------------------ 3 M101-UV-POS ACS/SBC ACCUM SBC-FIX F150LP 1 300.0 S POS TARG -0.078, -0.078 2-NEW ------------------------------------------------------------------------------------------------------------------------------------ 4 M101-UV-POS ACS/SBC ACCUM SBC-FIX F150LP 1 750.0 S POS TARG -0.078, 0.078; 2-NEW PATTERN 2 4 ------------------------------------------------------------------------------------------------------------------------------------ 5 M101-UV-POS ACS/SBC ACCUM SBC-FIX F150LP 1 750.0 S POS TARG -0.078, -0.078; 2-NEW PATTERN 2 5 ------------------------------------------------------------------------------------------------------------------------------------ 6 M101-UV-POS ACS/SBC ACCUM SBC-FIX F150LP 1 300.0 S POS TARG -0.078, -0.078 2-NEW ------------------------------------------------------------------------------------------------------------------------------------ 7 M101-UV-POS ACS/SBC ACCUM SBC-FIX F150LP 1 750.0 S POS TARG -0.157, 0.0; 2-NEW PATTERN 2 7 ------------------------------------------------------------------------------------------------------------------------------------ 8 M101-UV-POS ACS/SBC ACCUM SBC-FIX F150LP 1 300.0 S POS TARG -0.157, 0.0 2-NEW ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ M101-UV-POS2-NEW 1 ACS/SBC ACCUM SBC-FIX F150LP none none none none 1 N/A M101-UV-POS2-NEW 2 ACS/SBC ACCUM SBC-FIX F150LP 1 none none none 1 N/A M101-UV-POS2-NEW 2 ACS/SBC ACCUM SBC-FIX F150LP 2 none none none 1 N/A M101-UV-POS2-NEW 2 ACS/SBC ACCUM SBC-FIX F150LP 3 none none none 1 N/A M101-UV-POS2-NEW 3 ACS/SBC ACCUM SBC-FIX F150LP none none none none 2 N/A M101-UV-POS2-NEW 4 ACS/SBC ACCUM SBC-FIX F150LP 1 none none none 2 N/A M101-UV-POS2-NEW 4 ACS/SBC ACCUM SBC-FIX F150LP 2 none none none 2 N/A M101-UV-POS2-NEW 4 ACS/SBC ACCUM SBC-FIX F150LP 3 none none none 2 N/A M101-UV-POS2-NEW 5 ACS/SBC ACCUM SBC-FIX F150LP 1 none none none 3 N/A M101-UV-POS2-NEW 5 ACS/SBC ACCUM SBC-FIX F150LP 2 none none none 3 N/A 11147( 5) - 20-May-2008 13:30:54 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ M101-UV-POS2-NEW 5 ACS/SBC ACCUM SBC-FIX F150LP 3 none none none 3 N/A M101-UV-POS2-NEW 6 ACS/SBC ACCUM SBC-FIX F150LP none none none none 3 N/A M101-UV-POS2-NEW 7 ACS/SBC ACCUM SBC-FIX F150LP 1 none none none 4 N/A M101-UV-POS2-NEW 7 ACS/SBC ACCUM SBC-FIX F150LP 2 none none none 4 N/A M101-UV-POS2-NEW 7 ACS/SBC ACCUM SBC-FIX F150LP 3 none none none 4 N/A M101-UV-POS2-NEW 8 ACS/SBC ACCUM SBC-FIX F150LP none none none none 4 N/A 11147( 5) - 20-May-2008 13:30:54 - [ 10] Visit: 51 Visit Priority: Visit Requirements: On Hold Comments: Additional Comments: This is a repeat of visit 01. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 M101-UV-POS ACS/SBC ACCUM SBC-FIX F150LP 1 750.0 S PATTERN 2 1-2; PAR 2 1-NEW WITH 1 ------------------------------------------------------------------------------------------------------------------------------------ 2 ANY NIC3 MULTIAC NIC3 F160W NSAMP=14, SAMP-SEQ=SPARS64 1 DEF CUM ------------------------------------------------------------------------------------------------------------------------------------ 3 M101-UV-POS ACS/SBC ACCUM SBC-FIX F150LP 1 300.0 S PAR 4 WITH 3 1-NEW ------------------------------------------------------------------------------------------------------------------------------------ 4 ANY NIC3 MULTIAC NIC3-FIX F160W SAMP-SEQ=SPARS64, NSAMP=7 1 DEF CUM ------------------------------------------------------------------------------------------------------------------------------------ 5 M101-UV-POS ACS/SBC ACCUM SBC-FIX F150LP 1 300.0 S POS TARG -0.078, -0.078; 1-NEW PAR 6 WITH 5 ------------------------------------------------------------------------------------------------------------------------------------ 6 ANY NIC3 MULTIAC NIC3-FIX F160W SAMP-SEQ=SPARS64, NSAMP=7 1 DEF CUM ------------------------------------------------------------------------------------------------------------------------------------ 7 M101-UV-POS ACS/SBC ACCUM SBC-FIX F150LP 1 750.0 S POS TARG -0.078, 0.078; 1-NEW PATTERN 2 7-8; PAR 8 WITH 7 ------------------------------------------------------------------------------------------------------------------------------------ 8 ANY NIC3 MULTIAC NIC3 F160W NSAMP=14, SAMP-SEQ=SPARS64 1 DEF 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 | ------------------------------------------------------------------------------------------------------------------------------------ M101-UV-POS1-NEW 1 ACS/SBC ACCUM SBC-FIX F150LP 1 none none none 1 N/A M101-UV-POS1-NEW 1 ACS/SBC ACCUM SBC-FIX F150LP 2 none none none 1 N/A M101-UV-POS1-NEW 1 ACS/SBC ACCUM SBC-FIX F150LP 3 none none none 1 N/A ANY 2 NIC3 MULTIAC NIC3 F160W 1 none none none 1 N/A CUM ANY 2 NIC3 MULTIAC NIC3 F160W 2 none none none 1 N/A CUM ANY 2 NIC3 MULTIAC NIC3 F160W 3 none none none 1 N/A CUM M101-UV-POS1-NEW 3 ACS/SBC ACCUM SBC-FIX F150LP none none none none 1 N/A 11147( 5) - 20-May-2008 13:30:54 - [ 11] 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 | ------------------------------------------------------------------------------------------------------------------------------------ ANY 4 NIC3 MULTIAC NIC3-FIX F160W none none none none 1 N/A CUM M101-UV-POS1-NEW 5 ACS/SBC ACCUM SBC-FIX F150LP none none none none 2 N/A ANY 6 NIC3 MULTIAC NIC3-FIX F160W none none none none 2 N/A CUM M101-UV-POS1-NEW 7 ACS/SBC ACCUM SBC-FIX F150LP 1 none none none 2 N/A M101-UV-POS1-NEW 7 ACS/SBC ACCUM SBC-FIX F150LP 2 none none none 2 N/A M101-UV-POS1-NEW 7 ACS/SBC ACCUM SBC-FIX F150LP 3 none none none 2 N/A ANY 8 NIC3 MULTIAC NIC3 F160W 1 none none none 2 N/A CUM ANY 8 NIC3 MULTIAC NIC3 F160W 2 none none none 2 N/A CUM ANY 8 NIC3 MULTIAC NIC3 F160W 3 none none none 2 N/A CUM 11147( 5) - 20-May-2008 13:30:54 - [ 12] Summary Form for Proposal 11147 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures NIC3, NIC3-FIX, SBC-FIX ------------------------------------------------------------------------------------------------------------------------------------ Configurations ACS/SBC, NIC3 ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, MULTIACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters NSAMP=14, NSAMP=7, SAMP-SEQ=SPARS64 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ORIENT 178.0D TO 182.0 D, ORIENT 268.0D TO 272.0 D, ORIENT 358.0D TO 2.0 D, ORIENT 88.0D TO 92.0 D, PAR 10 WITH 9, PAR 12 WITH 11, PAR 14 WITH 13, PAR 16 WITH 15, PAR 2 WITH 1, PAR 4 WITH 3, PAR 6 WITH 5, PAR 8 WITH 7, PATTERN 2 1-2, PATTERN 2 13-14, PATTERN 2 2, PATTERN 2 4, PATTERN 2 5, PATTERN 2 7, PATTERN 2 7-8, PATTERN 2 9-10, POS TARG -0.078, -0.078, POS TARG -0.078, 0.078, POS TARG -0.157, 0.0 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F150LP, F160W ------------------------------------------------------------------------------------------------------------------------------------ Target Names ANY, M101-UV-POS1-NEW, M101-UV-POS2-NEW ------------------------------------------------------------------------------------------------------------------------------------