Version 3 596863691 Assigned ID: 321 ----- Attempting Submission 1 (Fri Apr 10 01:01:12 GMT 2015) ----- HST Phase I Proposal 321 (cstars.apt) successfully submitted. Receipt: # 321-1 ----- Attempting Submission 2 (Fri Apr 10 18:28:16 GMT 2015) ----- HST Phase I Proposal 321 (cstars.apt) successfully submitted. Receipt: # 321-2 ----- Attempting Submission 3 (Fri Apr 10 19:40:48 GMT 2015) ----- 0 ----- Attempting Submission 1 (Thu Jul 23 16:25:17 GMT 2015) ----- HST Phase II Proposal 14072 (14072_jul23_submitted.apt) successfully submitted. Receipt: # 14072-1 ----- Attempting Submission 2 (Thu Jul 23 16:29:16 GMT 2015) ----- The Evolution of Metal-rich Asymptotic Giant Branch Stars Theoretical models of Asymptotic Giant Branch (AGB) stellar evolution rely on observations of the ratio of carbon-rich (C) to oxygen-rich (M) stars and the carbon star luminosity function (CSLF). Sensitivity and resolution limitations have restricted measurements of C/M and the CSLF to metal-poor environments in nearby galaxies. Unfortunately, while HST WFC3/IR broad-band imaging can detect AGB stars in more distant, metal-rich galaxies, it is impossible to distinguish between different AGB subtypes with only the available broad-band filters. However, our successful Cycle 20 1-orbit pilot program showed that AGB stars can be effectively separated into C and M stars using the WFC3/IR medium-band filters. Thus, detailed studies of AGB stellar evolution are now possible in galaxies that are only resolvable with HST. We propose to use the WFC3/IR medium-band filters to make the very first bias-free measurement of C/M and the CSLF in a metal-rich environment (M31). Our high-precision measurement of the morphology of the CSLF will calibrate the efficiency of the third dredge up and the minimum core mass to form a C star, both of which depend on the metallicity. Our measurements of the C/M ratio will leverage M31's metallicity distribution to determine the metallicity limit above which C stars cannot form. The interpretation of these observations is straightforward owing to the ability to leverage data products from the Panchromatic Andromeda Treasury (PHAT) program. As a result, we can conclusively evaluate AGB evolution models in a never-before-tested, metal-rich environment. Targets: We will target 20 primary and 20 parallel fields in M31. All primary fields show evidence for star formation in the last 400 Myr, indicating the presence of an AGB star population at the appropriate age for C stars. Some target fields also contain spectroscopically-confirmed C stars. Parallel fields maximize coverage of star-forming regions. Filters: To take full advantage of the molecular features in near-IR spectra of C-rich stars from 0.9 to 1.7 microns, we require observations with F127M, F139M, and F153M. All three filters are necessary, since combinations with the broad-band optical and near-IR filters do not successfully isolate the carbon stars. Combined with the broad-band WFC3/IR and the optical photometry from PHAT, we will have well-sampled spectral coverage down to 2700 angstroms. The ACS parallels will use F625W and F658N to identify emission line stars. Required primary exposure times and photometric depth: In order to detect all AGB stars, we must achieve full photometric completeness at the tip of the red giant branch (TRGB). Assuming a typical orbit time of ~57 min for M31, we can achieve the necessary photometric depth within a single orbit (as demonstrated in our pilot program). After accounting for overheads, this allows for total exposure times of about 800-900 s in each filter, resulting in S/N > 7.3 in F139M (optimal S/N > 9.2) for m_F160W = 23 mag, using a Bruzual template for an M6III star. The S/N is even better in the F127M and F153M filters, owing to a higher throughput. For reference, the TRGB in the F160W filter corresponds to ~19 mag at the distance of M31. For the parallels, we maximize the exposure time in F658N, while also preserving image quality and avoiding buffer dump latency. The remainging available parallel time is filled with F625W for continuum subtraction. Dithering Strategy for primaries: Dithering diminishes errors associated with where a source is placed on a pixel, undersampling of the WFC3/IR channel, and image artifacts such as cosmic rays. We choose a 4-pt dither pattern to acheive Nyquist sampling of the PSF in F127M. The remaining 2 filters will use a 2-pt dither: we will reduce F127M simultaneously to acheive Nyquist sampling for the 2-pt dithers (e.g., PHAT; Dalcanton et al. 2012). We choose this strategy to allow for ACS buffer dumps in parallel. The dither patterns are entered manually in the position offsets, following the WFC3-IR-DITHER-BOX-MIN pattern values listed in the WFC3 handbook in Table C.3. For the parallels, each filter is imaged in two of the dither positions. The PHAT data is Nyquist sampled in F814W, and we will re-reduce that data simultaneously to achieve Nyquist sampling in F625W and F658N. Avoiding Saturation: Saturation is mitigated by always having at least one short exposure per field/filter, and by the sampling of WFC3/IR. The parallel fields are not in danger of saturation: the F625W filter includes one short exposure (100s), and the width of F658N is narrow enough to allow for long exposures. Parallels: We are observing with ACS in parallel. Orientation constraints ensure that the parallel fields maximize coverage of star-forming regions and to ensure that the fields fall inside the PHAT coverage. RESOLVED STELLAR POPULATIONS 12 false false false false SUPPORTED GALAXY DISK SPIRAL This is a star field, with a wide range of V-mags. The brightest star in the optical HST images of M31 from the Panchromatic Hubble Andromeda Treasury (PHAT) is about F475W=18 mag. The stars of interest to this program range from approximately F814W=18-23 mag. ANDROMEDA-POS01 J2000 GALAXY DISK SPIRAL This is a star field, with a wide range of V-mags. The brightest star in the optical HST images of M31 from the Panchromatic Hubble Andromeda Treasury (PHAT) is about F475W=18 mag. The stars of interest to this program range from approximately F814W=18-23 mag. ANDROMEDA-POS02 J2000 GALAXY DISK SPIRAL This is a star field, with a wide range of V-mags. The brightest star in the optical HST images of M31 from the Panchromatic Hubble Andromeda Treasury (PHAT) is about F475W=18 mag. The stars of interest to this program range from approximately F814W=18-23 mag. ANDROMEDA-POS03 J2000 GALAXY DISK SPIRAL This is a star field, with a wide range of V-mags. The brightest star in the optical HST images of M31 from the Panchromatic Hubble Andromeda Treasury (PHAT) is about F475W=18 mag. The stars of interest to this program range from approximately F814W=18-23 mag. ANDROMEDA-POS04 J2000 GALAXY DISK SPIRAL This is a star field, with a wide range of V-mags. The brightest star in the optical HST images of M31 from the Panchromatic Hubble Andromeda Treasury (PHAT) is about F475W=18 mag. The stars of interest to this program range from approximately F814W=18-23 mag. ANDROMEDA-POS05 J2000 GALAXY DISK SPIRAL This is a star field, with a wide range of V-mags. The brightest star in the optical HST images of M31 from the Panchromatic Hubble Andromeda Treasury (PHAT) is about F475W=18 mag. The stars of interest to this program range from approximately F814W=18-23 mag. ANDROMEDA-POS06 J2000 GALAXY DISK RING SPIRAL This is a star field, with a wide range of V-mags. The brightest star in the optical HST images of M31 from the Panchromatic Hubble Andromeda Treasury (PHAT) is about F475W=18 mag. The stars of interest to this program range from approximately F814W=18-23 mag. ANDROMEDA-POS07 J2000 GALAXY DISK RING SPIRAL This is a star field, with a wide range of V-mags. The brightest star in the optical HST images of M31 from the Panchromatic Hubble Andromeda Treasury (PHAT) is about F475W=18 mag. The stars of interest to this program range from approximately F814W=18-23 mag. ANDROMEDA-POS08 J2000 GALAXY DISK RING SPIRAL This is a star field, with a wide range of V-mags. The brightest star in the optical HST images of M31 from the Panchromatic Hubble Andromeda Treasury (PHAT) is about F475W=18 mag. The stars of interest to this program range from approximately F814W=18-23 mag. ANDROMEDA-POS09 J2000 GALAXY DISK RING SPIRAL This is a star field, with a wide range of V-mags. The brightest star in the optical HST images of M31 from the Panchromatic Hubble Andromeda Treasury (PHAT) is about F475W=18 mag. The stars of interest to this program range from approximately F814W=18-23 mag. ANDROMEDA-POS10 J2000 GALAXY DISK SPIRAL This is a star field, with a wide range of V-mags. The brightest star in the optical HST images of M31 from the Panchromatic Hubble Andromeda Treasury (PHAT) is about F475W=18 mag. The stars of interest to this program range from approximately F814W=18-23 mag. ANDROMEDA-POS11 J2000 GALAXY DISK RING SPIRAL This is a star field, with a wide range of V-mags. The brightest star in the optical HST images of M31 from the Panchromatic Hubble Andromeda Treasury (PHAT) is about F475W=18 mag. The stars of interest to this program range from approximately F814W=18-23 mag. ANDROMEDA-POS12 J2000 GALAXY DISK SPIRAL This is a star field, with a wide range of V-mags. The brightest star in the optical HST images of M31 from the Panchromatic Hubble Andromeda Treasury (PHAT) is about F475W=18 mag. The stars of interest to this program range from approximately F814W=18-23 mag. ANDROMEDA-POS13 J2000 GALAXY DISK SPIRAL This is a star field, with a wide range of V-mags. The brightest star in the optical HST images of M31 from the Panchromatic Hubble Andromeda Treasury (PHAT) is about F475W=18 mag. The stars of interest to this program range from approximately F814W=18-23 mag. ANDROMEDA-POS14 J2000 GALAXY DISK RING SPIRAL This is a star field, with a wide range of V-mags. The brightest star in the optical HST images of M31 from the Panchromatic Hubble Andromeda Treasury (PHAT) is about F475W=18 mag. The stars of interest to this program range from approximately F814W=18-23 mag. ANDROMEDA-POS15 J2000 GALAXY DISK RING SPIRAL This is a star field, with a wide range of V-mags. The brightest star in the optical HST images of M31 from the Panchromatic Hubble Andromeda Treasury (PHAT) is about F475W=18 mag. The stars of interest to this program range from approximately F814W=18-23 mag. ANDROMEDA-POS16 J2000 GALAXY DISK RING SPIRAL This is a star field, with a wide range of V-mags. The brightest star in the optical HST images of M31 from the Panchromatic Hubble Andromeda Treasury (PHAT) is about F475W=18 mag. The stars of interest to this program range from approximately F814W=18-23 mag. ANDROMEDA-POS17 J2000 GALAXY DISK RING SPIRAL This is a star field, with a wide range of V-mags. The brightest star in the optical HST images of M31 from the Panchromatic Hubble Andromeda Treasury (PHAT) is about F475W=18 mag. The stars of interest to this program range from approximately F814W=18-23 mag. ANDROMEDA-POS18 J2000 GALAXY DISK RING SPIRAL This is a star field, with a wide range of V-mags. The brightest star in the optical HST images of M31 from the Panchromatic Hubble Andromeda Treasury (PHAT) is about F475W=18 mag. The stars of interest to this program range from approximately F814W=18-23 mag. ANDROMEDA-POS19 J2000 GALAXY DISK SPIRAL This is a star field, with a wide range of V-mags. The brightest star in the optical HST images of M31 from the Panchromatic Hubble Andromeda Treasury (PHAT) is about F475W=18 mag. The stars of interest to this program range from approximately F814W=18-23 mag. ANDROMEDA-POS20 J2000 WFC3/IR Imaging No No F127M WFC3/IR Imaging No No F139M WFC3/IR Imaging No No F153M ACS/WFC Imaging No No F658N ACS/WFC Imaging No No F625W WFC3/IR Imaging No No F127M WFC3/IR Imaging No No F139M WFC3/IR Imaging No No F153M ACS/WFC Imaging No No F658N ACS/WFC Imaging No No F625W WFC3/IR Imaging No No F127M WFC3/IR Imaging No No F139M WFC3/IR Imaging No No F153M ACS/WFC Imaging No No F658N ACS/WFC Imaging No No F625W WFC3/IR Imaging No No F127M WFC3/IR Imaging No No F139M WFC3/IR Imaging No No F153M ACS/WFC Imaging No No F658N ACS/WFC Imaging No No F625W WFC3/IR Imaging No No F127M WFC3/IR Imaging No No F139M WFC3/IR Imaging No No F153M ACS/WFC Imaging No No F658N ACS/WFC Imaging No No F625W WFC3/IR Imaging No No F127M WFC3/IR Imaging No No F139M WFC3/IR Imaging No No F153M ACS/WFC Imaging No No F658N ACS/WFC Imaging No No F625W WFC3/IR Imaging No No F127M WFC3/IR Imaging No No F139M WFC3/IR Imaging No No F153M ACS/WFC Imaging No No F658N ACS/WFC Imaging No No F625W WFC3/IR Imaging No No F127M WFC3/IR Imaging No No F139M WFC3/IR Imaging No No F153M ACS/WFC Imaging No No F658N ACS/WFC Imaging No No F625W WFC3/IR Imaging No No F127M WFC3/IR Imaging No No F139M WFC3/IR Imaging No No F153M ACS/WFC Imaging No No F658N ACS/WFC Imaging No No F625W WFC3/IR Imaging No No F127M WFC3/IR Imaging No No F139M WFC3/IR Imaging No No F153M ACS/WFC Imaging No No F658N ACS/WFC Imaging No No F625W WFC3/IR Imaging No No F127M WFC3/IR Imaging No No F139M WFC3/IR Imaging No No F153M ACS/WFC Imaging No No F658N ACS/WFC Imaging No No F625W WFC3/IR Imaging No No F127M WFC3/IR Imaging No No F139M WFC3/IR Imaging No No F153M ACS/WFC Imaging No No F658N ACS/WFC Imaging No No F625W WFC3/IR Imaging No No F127M WFC3/IR Imaging No No F139M WFC3/IR Imaging No No F153M ACS/WFC Imaging No No F658N ACS/WFC Imaging No No F625W WFC3/IR Imaging No No F127M WFC3/IR Imaging No No F139M WFC3/IR Imaging No No F153M ACS/WFC Imaging No No F658N ACS/WFC Imaging No No F625W WFC3/IR Imaging No No F127M WFC3/IR Imaging No No F139M WFC3/IR Imaging No No F153M ACS/WFC Imaging No No F658N ACS/WFC Imaging No No F625W WFC3/IR Imaging No No F127M WFC3/IR Imaging No No F139M WFC3/IR Imaging No No F153M ACS/WFC Imaging No No F658N ACS/WFC Imaging No No F625W WFC3/IR Imaging No No F127M WFC3/IR Imaging No No F139M WFC3/IR Imaging No No F153M ACS/WFC Imaging No No F658N ACS/WFC Imaging No No F625W WFC3/IR Imaging No No F127M WFC3/IR Imaging No No F139M WFC3/IR Imaging No No F153M ACS/WFC Imaging No No F658N ACS/WFC Imaging No No F625W WFC3/IR Imaging No No F127M WFC3/IR Imaging No No F139M WFC3/IR Imaging No No F153M ACS/WFC Imaging No No F658N ACS/WFC Imaging No No F625W WFC3/IR Imaging No No F127M WFC3/IR Imaging No No F139M WFC3/IR Imaging No No F153M ACS/WFC Imaging No No F658N ACS/WFC Imaging No No F625W /Users/mlboyer1/Proposals/HST2015/M31/PhaseII/OP-cache/14072_jul23_submitted-v01.xml The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. Using a 4pt dither for F127M, and a 2pt dither for F139M and F153M. Nyquist sampling will be recovered in two redder filters by leveraging the dithers in the blue filter - all filters will be reduced simultaneously. This strategy allows for maximum exposure lengths with ACS in parallel, mitigating latency due to buffer dumps. Orientation requirements set to ensure that the parallel falls within the PHAT coverage & to maximize coverage of star-forming regions. These restrictions can be loosened if schedulability becomes an issue. (Tic-Visit :proposal-id 14072 :visit-id "01" :proposal-version -1 :trans-version "20150609" :date "23-Jul-2015 11:50:16.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 2303280 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14072 :visit-id "01" :obset-id "01" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14072 :visit-id "01" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2974 :al-overhead-at-end 0 :internal-dur-at-end 1075 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3307 :pcs-gap 0 ) true 1 0 /Users/mlboyer1/Proposals/HST2015/M31/PhaseII/OP-cache/14072_jul23_submitted-v02.xml The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. Using a 4pt dither for F127M, and a 2pt dither for F139M and F153M. Nyquist sampling will be recovered in two redder filters by leveraging the dithers in the blue filter - all filters will be reduced simultaneously. This strategy allows for maximum exposure lengths with ACS in parallel, mitigating latency due to buffer dumps. Orientation requirements set to ensure that the parallel falls within the PHAT coverage & to maximize coverage of star-forming regions. These restrictions can be loosened if schedulability becomes an issue. (Tic-Visit :proposal-id 14072 :visit-id "02" :proposal-version -1 :trans-version "20150609" :date "23-Jul-2015 11:38:15.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 2303280 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14072 :visit-id "02" :obset-id "02" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14072 :visit-id "02" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2974 :al-overhead-at-end 0 :internal-dur-at-end 1075 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3307 :pcs-gap 0 ) true 1 0 /Users/mlboyer1/Proposals/HST2015/M31/PhaseII/OP-cache/14072_jul23_submitted-v03.xml The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. Using a 4pt dither for F127M, and a 2pt dither for F139M and F153M. Nyquist sampling will be recovered in two redder filters by leveraging the dithers in the blue filter - all filters will be reduced simultaneously. This strategy allows for maximum exposure lengths with ACS in parallel, mitigating latency due to buffer dumps. Orientation requirements set to ensure that the parallel falls within the PHAT coverage & to maximize coverage of star-forming regions. These restrictions can be loosened if schedulability becomes an issue. (Tic-Visit :proposal-id 14072 :visit-id "03" :proposal-version -1 :trans-version "20150609" :date "23-Jul-2015 11:51:52.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 2303280 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14072 :visit-id "03" :obset-id "03" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14072 :visit-id "03" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2974 :al-overhead-at-end 0 :internal-dur-at-end 1075 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3307 :pcs-gap 0 ) true 1 0 /Users/mlboyer1/Proposals/HST2015/M31/PhaseII/OP-cache/14072_jul23_submitted-v04.xml The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. Using a 4pt dither for F127M, and a 2pt dither for F139M and F153M. Nyquist sampling will be recovered in two redder filters by leveraging the dithers in the blue filter - all filters will be reduced simultaneously. This strategy allows for maximum exposure lengths with ACS in parallel, mitigating latency due to buffer dumps. Orientation requirements set to ensure that the parallel falls within the PHAT coverage & to maximize coverage of star-forming regions. These restrictions can be loosened if schedulability becomes an issue. (Tic-Visit :proposal-id 14072 :visit-id "04" :proposal-version -1 :trans-version "20150609" :date "23-Jul-2015 11:38:18.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 2303280 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14072 :visit-id "04" :obset-id "04" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14072 :visit-id "04" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2974 :al-overhead-at-end 0 :internal-dur-at-end 1075 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3307 :pcs-gap 0 ) true 1 0 /Users/mlboyer1/Proposals/HST2015/M31/PhaseII/OP-cache/14072_jul23_submitted-v05.xml The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. Using a 4pt dither for F127M, and a 2pt dither for F139M and F153M. Nyquist sampling will be recovered in two redder filters by leveraging the dithers in the blue filter - all filters will be reduced simultaneously. This strategy allows for maximum exposure lengths with ACS in parallel, mitigating latency due to buffer dumps. Orientation requirements set to ensure that the parallel falls within the PHAT coverage & to maximize coverage of star-forming regions. These restrictions can be loosened if schedulability becomes an issue. (Tic-Visit :proposal-id 14072 :visit-id "05" :proposal-version -1 :trans-version "20150609" :date "23-Jul-2015 11:55:17.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 2303280 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14072 :visit-id "05" :obset-id "05" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14072 :visit-id "05" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2974 :al-overhead-at-end 0 :internal-dur-at-end 1075 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3307 :pcs-gap 0 ) true 1 0 /Users/mlboyer1/Proposals/HST2015/M31/PhaseII/OP-cache/14072_jul23_submitted-v06.xml The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. Using a 4pt dither for F127M, and a 2pt dither for F139M and F153M. Nyquist sampling will be recovered in two redder filters by leveraging the dithers in the blue filter - all filters will be reduced simultaneously. This strategy allows for maximum exposure lengths with ACS in parallel, mitigating latency due to buffer dumps. Orientation requirements set to ensure that the parallel falls within the PHAT coverage & to maximize coverage of star-forming regions. These restrictions can be loosened if schedulability becomes an issue. (Tic-Visit :proposal-id 14072 :visit-id "06" :proposal-version -1 :trans-version "20150609" :date "23-Jul-2015 11:57:36.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 2303280 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14072 :visit-id "06" :obset-id "06" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14072 :visit-id "06" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2974 :al-overhead-at-end 0 :internal-dur-at-end 1075 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3307 :pcs-gap 0 ) true 1 0 /Users/mlboyer1/Proposals/HST2015/M31/PhaseII/OP-cache/14072_jul23_submitted-v07.xml The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. Using a 4pt dither for F127M, and a 2pt dither for F139M and F153M. Nyquist sampling will be recovered in two redder filters by leveraging the dithers in the blue filter - all filters will be reduced simultaneously. This strategy allows for maximum exposure lengths with ACS in parallel, mitigating latency due to buffer dumps. Orientation requirements set to ensure that the parallel falls within the PHAT coverage & to maximize coverage of star-forming regions. These restrictions can be loosened if schedulability becomes an issue. (Tic-Visit :proposal-id 14072 :visit-id "07" :proposal-version -1 :trans-version "20150609" :date "23-Jul-2015 11:58:27.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 2303280 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14072 :visit-id "07" :obset-id "07" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14072 :visit-id "07" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2974 :al-overhead-at-end 0 :internal-dur-at-end 1075 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3307 :pcs-gap 0 ) true 1 0 /Users/mlboyer1/Proposals/HST2015/M31/PhaseII/OP-cache/14072_jul23_submitted-v08.xml The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. Using a 4pt dither for F127M, and a 2pt dither for F139M and F153M. Nyquist sampling will be recovered in two redder filters by leveraging the dithers in the blue filter - all filters will be reduced simultaneously. This strategy allows for maximum exposure lengths with ACS in parallel, mitigating latency due to buffer dumps. Orientation requirements set to ensure that the parallel falls within the PHAT coverage & to maximize coverage of star-forming regions. These restrictions can be loosened if schedulability becomes an issue. (Tic-Visit :proposal-id 14072 :visit-id "08" :proposal-version -1 :trans-version "20150609" :date "23-Jul-2015 11:59:23.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 2303280 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14072 :visit-id "08" :obset-id "08" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14072 :visit-id "08" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2974 :al-overhead-at-end 0 :internal-dur-at-end 1075 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3307 :pcs-gap 0 ) true 1 0 /Users/mlboyer1/Proposals/HST2015/M31/PhaseII/OP-cache/14072_jul23_submitted-v09.xml The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. Using a 4pt dither for F127M, and a 2pt dither for F139M and F153M. Nyquist sampling will be recovered in two redder filters by leveraging the dithers in the blue filter - all filters will be reduced simultaneously. This strategy allows for maximum exposure lengths with ACS in parallel, mitigating latency due to buffer dumps. Orientation requirements set to ensure that the parallel falls within the PHAT coverage & to maximize coverage of star-forming regions. These restrictions can be loosened if schedulability becomes an issue. (Tic-Visit :proposal-id 14072 :visit-id "09" :proposal-version -1 :trans-version "20150609" :date "23-Jul-2015 12:00:15.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 2303280 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14072 :visit-id "09" :obset-id "09" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14072 :visit-id "09" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2974 :al-overhead-at-end 0 :internal-dur-at-end 1075 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3307 :pcs-gap 0 ) true 1 0 /Users/mlboyer1/Proposals/HST2015/M31/PhaseII/OP-cache/14072_jul23_submitted-v10.xml The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. Using a 4pt dither for F127M, and a 2pt dither for F139M and F153M. Nyquist sampling will be recovered in two redder filters by leveraging the dithers in the blue filter - all filters will be reduced simultaneously. This strategy allows for maximum exposure lengths with ACS in parallel, mitigating latency due to buffer dumps. Orientation requirements set to ensure that the parallel falls within the PHAT coverage & to maximize coverage of star-forming regions. These restrictions can be loosened if schedulability becomes an issue. (Tic-Visit :proposal-id 14072 :visit-id "10" :proposal-version -1 :trans-version "20150609" :date "23-Jul-2015 12:00:58.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 2303280 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14072 :visit-id "10" :obset-id "10" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14072 :visit-id "10" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2974 :al-overhead-at-end 0 :internal-dur-at-end 1075 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3307 :pcs-gap 0 ) true 1 0 /Users/mlboyer1/Proposals/HST2015/M31/PhaseII/OP-cache/14072_jul23_submitted-v11.xml The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. Using a 4pt dither for F127M, and a 2pt dither for F139M and F153M. Nyquist sampling will be recovered in two redder filters by leveraging the dithers in the blue filter - all filters will be reduced simultaneously. This strategy allows for maximum exposure lengths with ACS in parallel, mitigating latency due to buffer dumps. Orientation requirements set to ensure that the parallel falls within the PHAT coverage & to maximize coverage of star-forming regions. These restrictions can be loosened if schedulability becomes an issue. (Tic-Visit :proposal-id 14072 :visit-id "11" :proposal-version -1 :trans-version "20150609" :date "23-Jul-2015 12:02:30.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 2303280 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14072 :visit-id "11" :obset-id "11" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14072 :visit-id "11" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2974 :al-overhead-at-end 0 :internal-dur-at-end 1075 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3307 :pcs-gap 0 ) true 1 0 /Users/mlboyer1/Proposals/HST2015/M31/PhaseII/OP-cache/14072_jul23_submitted-v12.xml The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. Using a 4pt dither for F127M, and a 2pt dither for F139M and F153M. Nyquist sampling will be recovered in two redder filters by leveraging the dithers in the blue filter - all filters will be reduced simultaneously. This strategy allows for maximum exposure lengths with ACS in parallel, mitigating latency due to buffer dumps. Orientation requirements set to ensure that the parallel falls within the PHAT coverage & to maximize coverage of star-forming regions. These restrictions can be loosened if schedulability becomes an issue. (Tic-Visit :proposal-id 14072 :visit-id "12" :proposal-version -1 :trans-version "20150609" :date "23-Jul-2015 12:03:59.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 2303280 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14072 :visit-id "12" :obset-id "12" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14072 :visit-id "12" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2974 :al-overhead-at-end 0 :internal-dur-at-end 1075 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3307 :pcs-gap 0 ) true 1 0 /Users/mlboyer1/Proposals/HST2015/M31/PhaseII/OP-cache/14072_jul23_submitted-v13.xml The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. Using a 4pt dither for F127M, and a 2pt dither for F139M and F153M. Nyquist sampling will be recovered in two redder filters by leveraging the dithers in the blue filter - all filters will be reduced simultaneously. This strategy allows for maximum exposure lengths with ACS in parallel, mitigating latency due to buffer dumps. Orientation requirements set to ensure that the parallel falls within the PHAT coverage & to maximize coverage of star-forming regions. These restrictions can be loosened if schedulability becomes an issue. (Tic-Visit :proposal-id 14072 :visit-id "13" :proposal-version -1 :trans-version "20150609" :date "23-Jul-2015 12:06:59.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 2303280 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14072 :visit-id "13" :obset-id "13" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14072 :visit-id "13" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2974 :al-overhead-at-end 0 :internal-dur-at-end 1075 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3307 :pcs-gap 0 ) true 1 0 /Users/mlboyer1/Proposals/HST2015/M31/PhaseII/OP-cache/14072_jul23_submitted-v14.xml The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. Using a 4pt dither for F127M, and a 2pt dither for F139M and F153M. Nyquist sampling will be recovered in two redder filters by leveraging the dithers in the blue filter - all filters will be reduced simultaneously. This strategy allows for maximum exposure lengths with ACS in parallel, mitigating latency due to buffer dumps. Orientation requirements set to ensure that the parallel falls within the PHAT coverage & to maximize coverage of star-forming regions. These restrictions can be loosened if schedulability becomes an issue. (Tic-Visit :proposal-id 14072 :visit-id "14" :proposal-version -1 :trans-version "20150609" :date "23-Jul-2015 11:38:29.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 2303280 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14072 :visit-id "14" :obset-id "14" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14072 :visit-id "14" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2974 :al-overhead-at-end 0 :internal-dur-at-end 1075 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3307 :pcs-gap 0 ) true 1 0 /Users/mlboyer1/Proposals/HST2015/M31/PhaseII/OP-cache/14072_jul23_submitted-v15.xml The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. Using a 4pt dither for F127M, and a 2pt dither for F139M and F153M. Nyquist sampling will be recovered in two redder filters by leveraging the dithers in the blue filter - all filters will be reduced simultaneously. This strategy allows for maximum exposure lengths with ACS in parallel, mitigating latency due to buffer dumps. Orientation requirements set to ensure that the parallel falls within the PHAT coverage & to maximize coverage of star-forming regions. These restrictions can be loosened if schedulability becomes an issue. (Tic-Visit :proposal-id 14072 :visit-id "15" :proposal-version -1 :trans-version "20150609" :date "23-Jul-2015 12:08:48.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 2303280 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14072 :visit-id "15" :obset-id "15" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14072 :visit-id "15" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2974 :al-overhead-at-end 0 :internal-dur-at-end 1075 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3307 :pcs-gap 0 ) true 1 0 /Users/mlboyer1/Proposals/HST2015/M31/PhaseII/OP-cache/14072_jul23_submitted-v16.xml The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. Using a 4pt dither for F127M, and a 2pt dither for F139M and F153M. Nyquist sampling will be recovered in two redder filters by leveraging the dithers in the blue filter - all filters will be reduced simultaneously. This strategy allows for maximum exposure lengths with ACS in parallel, mitigating latency due to buffer dumps. Orientation requirements set to ensure that the parallel falls within the PHAT coverage & to maximize coverage of star-forming regions. These restrictions can be loosened if schedulability becomes an issue. (Tic-Visit :proposal-id 14072 :visit-id "16" :proposal-version -1 :trans-version "20150609" :date "23-Jul-2015 12:11:16.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 2303280 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14072 :visit-id "16" :obset-id "16" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14072 :visit-id "16" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2974 :al-overhead-at-end 0 :internal-dur-at-end 1075 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3307 :pcs-gap 0 ) true 1 0 /Users/mlboyer1/Proposals/HST2015/M31/PhaseII/OP-cache/14072_jul23_submitted-v17.xml The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. Using a 4pt dither for F127M, and a 2pt dither for F139M and F153M. Nyquist sampling will be recovered in two redder filters by leveraging the dithers in the blue filter - all filters will be reduced simultaneously. This strategy allows for maximum exposure lengths with ACS in parallel, mitigating latency due to buffer dumps. Orientation requirements set to ensure that the parallel falls within the PHAT coverage & to maximize coverage of star-forming regions. These restrictions can be loosened if schedulability becomes an issue. (Tic-Visit :proposal-id 14072 :visit-id "17" :proposal-version -1 :trans-version "20150609" :date "23-Jul-2015 12:09:58.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 2303280 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14072 :visit-id "17" :obset-id "17" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14072 :visit-id "17" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2974 :al-overhead-at-end 0 :internal-dur-at-end 1075 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3307 :pcs-gap 0 ) true 1 0 /Users/mlboyer1/Proposals/HST2015/M31/PhaseII/OP-cache/14072_jul23_submitted-v18.xml The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. Using a 4pt dither for F127M, and a 2pt dither for F139M and F153M. Nyquist sampling will be recovered in two redder filters by leveraging the dithers in the blue filter - all filters will be reduced simultaneously. This strategy allows for maximum exposure lengths with ACS in parallel, mitigating latency due to buffer dumps. Orientation requirements set to ensure that the parallel falls within the PHAT coverage & to maximize coverage of star-forming regions. These restrictions can be loosened if schedulability becomes an issue. (Tic-Visit :proposal-id 14072 :visit-id "18" :proposal-version -1 :trans-version "20150609" :date "23-Jul-2015 12:16:12.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 2303280 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14072 :visit-id "18" :obset-id "18" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14072 :visit-id "18" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2974 :al-overhead-at-end 0 :internal-dur-at-end 1075 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3307 :pcs-gap 0 ) true 1 0 /Users/mlboyer1/Proposals/HST2015/M31/PhaseII/OP-cache/14072_jul23_submitted-v19.xml The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. Using a 4pt dither for F127M, and a 2pt dither for F139M and F153M. Nyquist sampling will be recovered in two redder filters by leveraging the dithers in the blue filter - all filters will be reduced simultaneously. This strategy allows for maximum exposure lengths with ACS in parallel, mitigating latency due to buffer dumps. Orientation requirements set to ensure that the parallel falls within the PHAT coverage & to maximize coverage of star-forming regions. These restrictions can be loosened if schedulability becomes an issue. (Tic-Visit :proposal-id 14072 :visit-id "19" :proposal-version -1 :trans-version "20150609" :date "23-Jul-2015 12:14:08.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 2303280 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14072 :visit-id "19" :obset-id "19" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14072 :visit-id "19" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2974 :al-overhead-at-end 0 :internal-dur-at-end 1075 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3307 :pcs-gap 0 ) true 1 0 /Users/mlboyer1/Proposals/HST2015/M31/PhaseII/OP-cache/14072_jul23_submitted-v20.xml The scheduling data was generated by CASM 23.2. CASM was run in Phase II mode. Using a 4pt dither for F127M, and a 2pt dither for F139M and F153M. Nyquist sampling will be recovered in two redder filters by leveraging the dithers in the blue filter - all filters will be reduced simultaneously. This strategy allows for maximum exposure lengths with ACS in parallel, mitigating latency due to buffer dumps. Orientation requirements set to ensure that the parallel falls within the PHAT coverage & to maximize coverage of star-forming regions. These restrictions can be loosened if schedulability becomes an issue. (Tic-Visit :proposal-id 14072 :visit-id "20" :proposal-version -1 :trans-version "20150609" :date "23-Jul-2015 12:15:31.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "30" :si-bright-earth-limb-angle 20.0 :data-volume 2303280 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 14072 :visit-id "20" :obset-id "20" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 14072 :visit-id "20" :orbit-number 1 :pcs-time 333 :si-vis-utilization 2974 :al-overhead-at-end 0 :internal-dur-at-end 1075 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3307 :pcs-gap 0 ) true 1 0