11329( 4) - 09/04/07 07:06 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 11329 Version: 4 Check-in Time: 04-Sep-2007 11:05:42 STScI Edit Number: 2 Title The Final SHOE; Completing a Rich Cepheid Field in NGC 1309 ------------------------------------------------------------------------------------ Type Cycle Parallel Pointing Tolerance GO/DD 16 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Adam Riess The Johns Hopkins University CoI: Dr. Lucas M. Macri National Optical Astronomy Observatories, N AURA ------------------------------------------------------------------------------------ Abstract The Cycle 15 SHOES program (GO 10802) is a large HST program allocated 186 orbits to rebuild the distance ladder using NGC 4258 as a new anchor, a set of 6 recent, ideal type Ia supernovae and Cepheids in their hosts, and NICMOS as a single, homogeneous photometer of long period Cepheids. These tools provide the means to achieve a 4% measurement of the Hubble constant, an invaluable constraint for cosmic concordance fits to dark energy models. Unfortunately, the SHOES NICMOS integrations of long period Cepheids in the last and most recent nearby type Ia supernova host, NGC 1309, are too short because the preliminary estimate of its distance, 30 Mpc, was too low. Our refined estimate now based on the full reduction of both our Cycle 14 and 15 ACS data is 36 Mpc, or 0.4 mag farther. Fortunately, Nature was extremely kind providing a single rich NIC2 field in which we can fully make up for the shortfall due to its abundance of Cepheids. We are expensing our final 4 orbits on this field of a dozen P>30 day Cepheids and seek an additional 5 orbits to reach the depth for measuring the mean F160W magnitudes of the long-period Cepheids with the necessary signal-to- noise ratios of better than 10. ------------------------------------------------------------------------------------ 11329( 4) - 09/04/07 07:06 - [ 2] Observations Description ------------------------ As per our Cycle 15 program, 5 orbits of NIC2 F160W on the target field NGC1309 yellow in F160W. Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ 11329( 4) - 09/04/07 07:06 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC-1309 GALAXY, DISK RA=03H22M7.0400S +/- 0.1", DEC=- J2000 V = 23.0 15D24'26.80" +/- 0.1" Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the NED database.This object was generated by the targetselector and retrieved from the NED database. 11329( 4) - 09/04/07 07:06 - [ 4] Visit: 01 Visit Priority: Visit Requirements: ORIENT 255.0D TO 255.0 D; BETWEEN 20-AUG-2007:00:00:00 AND 22-AUG- 2007:00:00:00 On Hold Comments: Additional Comments: PLEASE try to SCHEDULE in SAA free orbits, please try to schedule this visit in the MIDDLE of the BETWEEN window as possible Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC-1309 NIC2 MULTIAC NIC2-FIX F160W NSAMP=10,SAMP-SEQ=SPARS64 1 DEF GS ACQ SCENARIO BASE1TNS CUM ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC-1309 NIC2 MULTIAC NIC2-FIX F160W NSAMP=10,SAMP-SEQ=SPARS64 1 DEF CUM ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC-1309 NIC2 MULTIAC NIC2-FIX F160W NSAMP=10,SAMP-SEQ=SPARS64 1 DEF POS TARG 0.1177, 0.3805 CUM ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC-1309 NIC2 MULTIAC NIC2-FIX F160W NSAMP=10,SAMP-SEQ=SPARS64 1 DEF POS TARG 0.338, 0.0377 CUM ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC-1309 NIC2 MULTIAC NIC2-FIX F160W NSAMP=10,SAMP-SEQ=SPARS64 1 DEF POS TARG 0.3835, 0.4182 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC-1309 1 NIC2 MULTIAC NIC2-FIX F160W none none none none 1 N/A CUM NGC-1309 2 NIC2 MULTIAC NIC2-FIX F160W none none none none 1 N/A CUM NGC-1309 3 NIC2 MULTIAC NIC2-FIX F160W none none none none 1 N/A CUM NGC-1309 4 NIC2 MULTIAC NIC2-FIX F160W none none none none 1 N/A CUM NGC-1309 5 NIC2 MULTIAC NIC2-FIX F160W none none none none 1 N/A CUM 11329( 4) - 09/04/07 07:06 - [ 5] Visit: 02 Visit Priority: Visit Requirements: ORIENT 255.0D TO 255.0 D; BETWEEN 25-AUG-2007:00:00:00 AND 27-AUG- 2007:00:00:00 On Hold Comments: Additional Comments: PLEASE try to SCHEDULE in SAA free orbits, please try to schedule this visit in the MIDDLE of the BETWEEN window as possible Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC-1309 NIC2 MULTIAC NIC2-FIX F160W NSAMP=10,SAMP-SEQ=SPARS64 1 DEF GS ACQ SCENARIO BASE1TNS CUM ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC-1309 NIC2 MULTIAC NIC2-FIX F160W NSAMP=10,SAMP-SEQ=SPARS64 1 DEF CUM ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC-1309 NIC2 MULTIAC NIC2-FIX F160W NSAMP=10,SAMP-SEQ=SPARS64 1 DEF POS TARG 0.1177, 0.3805 CUM ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC-1309 NIC2 MULTIAC NIC2-FIX F160W NSAMP=10,SAMP-SEQ=SPARS64 1 DEF POS TARG 0.338, 0.0377 CUM ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC-1309 NIC2 MULTIAC NIC2-FIX F160W NSAMP=10,SAMP-SEQ=SPARS64 1 DEF POS TARG 0.3835, 0.4182 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC-1309 1 NIC2 MULTIAC NIC2-FIX F160W none none none none 1 N/A CUM NGC-1309 2 NIC2 MULTIAC NIC2-FIX F160W none none none none 1 N/A CUM NGC-1309 3 NIC2 MULTIAC NIC2-FIX F160W none none none none 1 N/A CUM NGC-1309 4 NIC2 MULTIAC NIC2-FIX F160W none none none none 1 N/A CUM NGC-1309 5 NIC2 MULTIAC NIC2-FIX F160W none none none none 1 N/A CUM 11329( 4) - 09/04/07 07:06 - [ 6] Visit: 03 Visit Priority: Visit Requirements: ORIENT 255.0D TO 255.0 D; BETWEEN 30-AUG-2007:00:00:00 AND 01-SEP- 2007:00:00:00 On Hold Comments: Additional Comments: PLEASE try to SCHEDULE in SAA free orbits, please try to schedule this visit in the MIDDLE of the BETWEEN window as possible Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC-1309 NIC2 MULTIAC NIC2-FIX F160W NSAMP=10,SAMP-SEQ=SPARS64 1 DEF GS ACQ SCENARIO BASE1TNS CUM ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC-1309 NIC2 MULTIAC NIC2-FIX F160W NSAMP=10,SAMP-SEQ=SPARS64 1 DEF CUM ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC-1309 NIC2 MULTIAC NIC2-FIX F160W NSAMP=10,SAMP-SEQ=SPARS64 1 DEF POS TARG 0.1177, 0.3805 CUM ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC-1309 NIC2 MULTIAC NIC2-FIX F160W NSAMP=10,SAMP-SEQ=SPARS64 1 DEF POS TARG 0.338, 0.0377 CUM ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC-1309 NIC2 MULTIAC NIC2-FIX F160W NSAMP=10,SAMP-SEQ=SPARS64 1 DEF POS TARG 0.3835, 0.4182 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC-1309 1 NIC2 MULTIAC NIC2-FIX F160W none none none none 1 N/A CUM NGC-1309 2 NIC2 MULTIAC NIC2-FIX F160W none none none none 1 N/A CUM NGC-1309 3 NIC2 MULTIAC NIC2-FIX F160W none none none none 1 N/A CUM NGC-1309 4 NIC2 MULTIAC NIC2-FIX F160W none none none none 1 N/A CUM NGC-1309 5 NIC2 MULTIAC NIC2-FIX F160W none none none none 1 N/A CUM 11329( 4) - 09/04/07 07:06 - [ 7] Visit: 04 Visit Priority: Visit Requirements: ORIENT 255.0D TO 265.0 D On Hold Comments: Additional Comments: PLEASE try to SCHEDULE in SAA free orbits, please try to schedule this visit in the MIDDLE of the BETWEEN window as possible Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC-1309 NIC2 MULTIAC NIC2-FIX F160W NSAMP=10,SAMP-SEQ=SPARS64 1 DEF GS ACQ SCENARIO BASE1TNS CUM ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC-1309 NIC2 MULTIAC NIC2-FIX F160W NSAMP=10,SAMP-SEQ=SPARS64 1 DEF CUM ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC-1309 NIC2 MULTIAC NIC2-FIX F160W NSAMP=10,SAMP-SEQ=SPARS64 1 DEF POS TARG 0.1177, 0.3805 CUM ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC-1309 NIC2 MULTIAC NIC2-FIX F160W NSAMP=10,SAMP-SEQ=SPARS64 1 DEF POS TARG 0.338, 0.0377 CUM ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC-1309 NIC2 MULTIAC NIC2-FIX F160W NSAMP=10,SAMP-SEQ=SPARS64 1 DEF POS TARG 0.3835, 0.4182 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC-1309 1 NIC2 MULTIAC NIC2-FIX F160W none none none none 1 N/A CUM NGC-1309 2 NIC2 MULTIAC NIC2-FIX F160W none none none none 1 N/A CUM NGC-1309 3 NIC2 MULTIAC NIC2-FIX F160W none none none none 1 N/A CUM NGC-1309 4 NIC2 MULTIAC NIC2-FIX F160W none none none none 1 N/A CUM NGC-1309 5 NIC2 MULTIAC NIC2-FIX F160W none none none none 1 N/A CUM 11329( 4) - 09/04/07 07:06 - [ 8] Visit: 05 Visit Priority: Visit Requirements: ORIENT 255.0D TO 265.0 D On Hold Comments: Additional Comments: PLEASE try to SCHEDULE in SAA free orbits, please try to schedule this visit in the MIDDLE of the BETWEEN window as possible Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 NGC-1309 NIC2 MULTIAC NIC2-FIX F160W NSAMP=10,SAMP-SEQ=SPARS64 1 DEF GS ACQ SCENARIO BASE1TNS CUM ------------------------------------------------------------------------------------------------------------------------------------ 2 NGC-1309 NIC2 MULTIAC NIC2-FIX F160W NSAMP=10,SAMP-SEQ=SPARS64 1 DEF CUM ------------------------------------------------------------------------------------------------------------------------------------ 3 NGC-1309 NIC2 MULTIAC NIC2-FIX F160W NSAMP=10,SAMP-SEQ=SPARS64 1 DEF POS TARG 0.1177, 0.3805 CUM ------------------------------------------------------------------------------------------------------------------------------------ 4 NGC-1309 NIC2 MULTIAC NIC2-FIX F160W NSAMP=10,SAMP-SEQ=SPARS64 1 DEF POS TARG 0.338, 0.0377 CUM ------------------------------------------------------------------------------------------------------------------------------------ 5 NGC-1309 NIC2 MULTIAC NIC2-FIX F160W NSAMP=10,SAMP-SEQ=SPARS64 1 DEF POS TARG 0.3835, 0.4182 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 | ------------------------------------------------------------------------------------------------------------------------------------ NGC-1309 1 NIC2 MULTIAC NIC2-FIX F160W none none none none 1 N/A CUM NGC-1309 2 NIC2 MULTIAC NIC2-FIX F160W none none none none 1 N/A CUM NGC-1309 3 NIC2 MULTIAC NIC2-FIX F160W none none none none 1 N/A CUM NGC-1309 4 NIC2 MULTIAC NIC2-FIX F160W none none none none 1 N/A CUM NGC-1309 5 NIC2 MULTIAC NIC2-FIX F160W none none none none 1 N/A CUM 11329( 4) - 09/04/07 07:06 - [ 9] Summary Form for Proposal 11329 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures NIC2-FIX ------------------------------------------------------------------------------------------------------------------------------------ Configurations NIC2 ------------------------------------------------------------------------------------------------------------------------------------ Opmodes MULTIACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters NSAMP=10 SAMP-SEQ=SPARS64 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ORIENT 255.0D TO 255.0 D; BETWEEN 20-AUG-2007 00 00 00 AND 22-AUG-2007 00 00 00; GS ACQ SCENARIO BASE1TNS; POS TARG 0.1177, 0.3805; POS TARG 0.338, 0.0377; POS TARG 0.3835, 0.4182; BETWEEN 25-AUG-2007 00 00 00 AND 27-AUG-2007 00 00 00; BETWEEN 30-AUG-2007 00 00 00 AND 01-SEP-2007 00 00 00; ORIENT 255.0D TO 265.0 D; ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F160W ------------------------------------------------------------------------------------------------------------------------------------ Target Names NGC-1309 ------------------------------------------------------------------------------------------------------------------------------------