Direct Age Determination of the Local Group dE Galaxies NGC 147 and NGC 185
The origin of dwarf elliptical (dE) galaxies remains a mystery and the dE galaxies of the Local Group provide the best opportunity to study this galaxy class in detail. We propose to obtain ACS photometry of main sequence turnoff stars in the M31 dE satellites NGC 147 and NGC 185. Because these galaxies have little to no stars younger than 1 Gyr, resolving the main sequence turnoff is required to directly quantify their star formation histories. NGC 147 and NGC 185 are the only two dEs for which a clean measurement is feasible with the HST. This proposal was accepted in Cycle 15, but little data were taken before the failure of ACS. The main sequence turnoffs of NGC 147 and NGC 185 are expected to be at an apparent magnitude of V=29; we request F606W/F814W imaging one half magnitude fainter than this limit (three magnitudes fainter than the deepest previous dE observations). Quantifying the ratio of old to intermediate-age stars will allow us to discriminate between competing models of dE formation. On-going Keck/DEIMOS spectroscopy of several hundred red giant stars in each of these two dE galaxies, coupled with dynamical modeling and spectral synthesis, will complement the ACS measurement by providing information on chemical abundance patterns, dark matter content and internal dynamics. The proposed ACS data will be the first to directly quantify the onset and duration of star formation episodes in dE galaxies, and will thereby form the cornerstone in what promises to be the most comprehensive study of this class of galaxies.
We will obtain a total of 53 orbits of deep ACS/WFC imaging in F606W (V-band) and F814W (I-band) in the Local Group dwarf elliptical galaies NGC 147 and NGC 185. Our goal is to resolve the main sequence turn-off (V~29.5) in these objects. We will obtain a single ACS pointing in each galaxy, plus a coordinated parallel field using the WFC3. We do not request a specific orient angle, however, all visits for a single galaxy should be scheduled at the same orient to maximize the sky coverage at the required depth. Most visits will consist of 4 exposures spanning 2 orbits in a single filter. Within a visit, each of the 4 exposures will be dithered to obtain good PSF sampling, with larger positional offsets between visits to dither the gap between chips. In addition, we will obtain 4x30s dithered image in each filter for each galaxy in order to obtain photometry for stars which will be saturated in the deep exposures. None of the exposures in any visit are CR-SPLIT. We request that the observations for each galaxy be obtained within a 40 day interval to minimize the effect of long-term variability on the resulting CMDs.
RESOLVED STELLAR POPULATIONS
12
false
0.0
0.0
false
false
false
false
false
SUPPORTED
GALAXY
DWARF ELLIPTICAL
J2000
00 32 51.0000
+48 22 40.00
J2000
GALAXY
DWARF ELLIPTICAL
J2000
00 39 10.7000
+48 26 37.80
J2000
ACS/WFC
Imaging
No
No
F606W
ACS/WFC
Imaging
No
No
F814W
ACS/WFC
Imaging
No
No
F606W
ACS/WFC
Imaging
No
No
F814W
WFC3/UVIS
Imaging
No
No
F814W
WFC3/UVIS
Imaging
No
No
F606W
WFC3/UVIS
Imaging
No
No
F814W
WFC3/UVIS
Imaging
No
No
F606W
POS-TARG
DITHER
0.265
LINE
0.187
false
false
69.05
4
20.67
ACS-WFC-DITHER-BOX
1
false
POS-TARG
DITHER
3.011
LINE
false
false
2
85.28
ACS-WFC-DITHER-LINE
2
false
Timing link suitability includes constraints ([02 After 01 by at most 40.0 days] [03 After 01 by at most 40.0 days] [04 After 01 by at most 40.0 days] [05 After 01 by at most 40.0 days] [06 After 01 by at most 40.0 days] [07 After 01 by at most 40.0 days] [08 After 01 by at most 40.0 days] [09 After 01 by at most 40.0 days] [10 After 01 by at most 40.0 days] [11 After 01 by at most 40.0 days] [12 After 01 by at most 40.0 days] [13 After 01 by at most 40.0 days] [14 After 01 by at most 40.0 days] [15 After 01 by at most 40.0 days])
Same orient constraint links visits (01 02 03 04 05 06 07 08 09 10 11 12 13 14 15)
The scheduling data was generated by CASM 17.2.
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Timing link suitability includes constraints ([02 After 01 by at most 40.0 days])
Same orient constraint links visits (01 02 03 04 05 06 07 08 09 10 11 12 13 14 15)
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Timing link suitability includes constraints ([03 After 01 by at most 40.0 days])
Same orient constraint links visits (01 02 03 04 05 06 07 08 09 10 11 12 13 14 15)
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Same orient constraint links visits (01 02 03 04 05 06 07 08 09 10 11 12 13 14 15)
The scheduling data was generated by CASM 17.2.
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Timing link suitability includes constraints ([05 After 01 by at most 40.0 days])
Same orient constraint links visits (01 02 03 04 05 06 07 08 09 10 11 12 13 14 15)
The scheduling data was generated by CASM 17.2.
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Timing link suitability includes constraints ([06 After 01 by at most 40.0 days])
Same orient constraint links visits (01 02 03 04 05 06 07 08 09 10 11 12 13 14 15)
The scheduling data was generated by CASM 17.2.
CASM was run in Phase II mode.
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Timing link suitability includes constraints ([07 After 01 by at most 40.0 days])
Same orient constraint links visits (01 02 03 04 05 06 07 08 09 10 11 12 13 14 15)
The scheduling data was generated by CASM 17.2.
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Timing link suitability includes constraints ([08 After 01 by at most 40.0 days])
Same orient constraint links visits (01 02 03 04 05 06 07 08 09 10 11 12 13 14 15)
The scheduling data was generated by CASM 17.2.
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true
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Timing link suitability includes constraints ([09 After 01 by at most 40.0 days])
Same orient constraint links visits (01 02 03 04 05 06 07 08 09 10 11 12 13 14 15)
The scheduling data was generated by CASM 17.2.
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Timing link suitability includes constraints ([10 After 01 by at most 40.0 days])
Same orient constraint links visits (01 02 03 04 05 06 07 08 09 10 11 12 13 14 15)
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Same orient constraint links visits (01 02 03 04 05 06 07 08 09 10 11 12 13 14 15)
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true
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Timing link suitability includes constraints ([12 After 01 by at most 40.0 days])
Same orient constraint links visits (01 02 03 04 05 06 07 08 09 10 11 12 13 14 15)
The scheduling data was generated by CASM 17.2.
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N147 F814W + short1
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Timing link suitability includes constraints ([13 After 01 by at most 40.0 days])
Same orient constraint links visits (01 02 03 04 05 06 07 08 09 10 11 12 13 14 15)
The scheduling data was generated by CASM 17.2.
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N147 F814W + short2
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:trans-version "20080609"
:date "02-Jul-2008 16:47:19.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 2864848
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11724
:visit-id "13"
:obset-id "13"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11724
:visit-id "13"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 3063
:al-overhead-at-end 7
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3398
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 11724
:visit-id "13"
:orbit-number 2
:pcs-time 195
:si-vis-utilization 3202
:al-overhead-at-end 0
:internal-dur-at-end 703
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3398
:pcs-gap 0
)
true
2
0
Timing link suitability includes constraints ([14 After 01 by at most 40.0 days])
Same orient constraint links visits (01 02 03 04 05 06 07 08 09 10 11 12 13 14 15)
The scheduling data was generated by CASM 17.2.
CASM was run in Phase II mode.
N147 F814W + short3
(Tic-Visit
:proposal-id 11724
:visit-id "14"
:proposal-version -1
:trans-version "20080609"
:date "02-Jul-2008 16:47:20.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 2864848
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11724
:visit-id "14"
:obset-id "14"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11724
:visit-id "14"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 3059
:al-overhead-at-end 7
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3398
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 11724
:visit-id "14"
:orbit-number 2
:pcs-time 195
:si-vis-utilization 3202
:al-overhead-at-end 0
:internal-dur-at-end 703
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3398
:pcs-gap 0
)
true
2
0
Timing link suitability includes constraints ([15 After 01 by at most 40.0 days])
Same orient constraint links visits (01 02 03 04 05 06 07 08 09 10 11 12 13 14 15)
The scheduling data was generated by CASM 17.2.
CASM was run in Phase II mode.
N147 F814W + short4
(Tic-Visit
:proposal-id 11724
:visit-id "15"
:proposal-version -1
:trans-version "20080609"
:date "02-Jul-2008 16:47:22.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 2864848
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11724
:visit-id "15"
:obset-id "15"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11724
:visit-id "15"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 3059
:al-overhead-at-end 7
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3398
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 11724
:visit-id "15"
:orbit-number 2
:pcs-time 195
:si-vis-utilization 3202
:al-overhead-at-end 0
:internal-dur-at-end 703
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3398
:pcs-gap 0
)
true
2
0
Timing link suitability includes constraints ([17 After 16 by at most 40.0 days] [18 After 16 by at most 40.0 days] [19 After 16 by at most 40.0 days] [20 After 16 by at most 40.0 days] [21 After 16 by at most 40.0 days] [22 After 16 by at most 40.0 days] [23 After 16 by at most 40.0 days] [24 After 16 by at most 40.0 days] [25 After 16 by at most 40.0 days] [26 After 16 by at most 40.0 days] [27 After 16 by at most 40.0 days])
Same orient constraint links visits (16 17 18 19 20 21 22 23 24 25 26 27)
The scheduling data was generated by CASM 17.2.
CASM was run in Phase II mode.
N185 F606W
(Tic-Visit
:proposal-id 11724
:visit-id "16"
:proposal-version -1
:trans-version "20080609"
:date "03-Jul-2008 12:49:48.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 2291872
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11724
:visit-id "16"
:obset-id "16"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11724
:visit-id "16"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 3064
:al-overhead-at-end 0
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3398
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 11724
:visit-id "16"
:orbit-number 2
:pcs-time 195
:si-vis-utilization 3202
:al-overhead-at-end 0
:internal-dur-at-end 1019
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3398
:pcs-gap 0
)
false
2
0
Timing link suitability includes constraints ([17 After 16 by at most 40.0 days])
Same orient constraint links visits (16 17 18 19 20 21 22 23 24 25 26 27)
The scheduling data was generated by CASM 17.2.
CASM was run in Phase II mode.
N185 F606W + short1
(Tic-Visit
:proposal-id 11724
:visit-id "17"
:proposal-version -1
:trans-version "20080609"
:date "02-Jul-2008 16:47:24.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 2864848
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11724
:visit-id "17"
:obset-id "17"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11724
:visit-id "17"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 3059
:al-overhead-at-end 7
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3398
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 11724
:visit-id "17"
:orbit-number 2
:pcs-time 195
:si-vis-utilization 3202
:al-overhead-at-end 0
:internal-dur-at-end 703
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3398
:pcs-gap 0
)
true
2
0
Timing link suitability includes constraints ([18 After 16 by at most 40.0 days])
Same orient constraint links visits (16 17 18 19 20 21 22 23 24 25 26 27)
The scheduling data was generated by CASM 17.2.
CASM was run in Phase II mode.
N185 F606W + short2
(Tic-Visit
:proposal-id 11724
:visit-id "18"
:proposal-version -1
:trans-version "20080609"
:date "02-Jul-2008 16:47:25.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 2864848
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11724
:visit-id "18"
:obset-id "18"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11724
:visit-id "18"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 3059
:al-overhead-at-end 7
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3398
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 11724
:visit-id "18"
:orbit-number 2
:pcs-time 195
:si-vis-utilization 3202
:al-overhead-at-end 0
:internal-dur-at-end 703
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3398
:pcs-gap 0
)
true
2
0
Timing link suitability includes constraints ([19 After 16 by at most 40.0 days])
Same orient constraint links visits (16 17 18 19 20 21 22 23 24 25 26 27)
The scheduling data was generated by CASM 17.2.
CASM was run in Phase II mode.
N185 F606W + short3
(Tic-Visit
:proposal-id 11724
:visit-id "19"
:proposal-version -1
:trans-version "20080609"
:date "02-Jul-2008 16:47:27.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 2864848
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11724
:visit-id "19"
:obset-id "19"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11724
:visit-id "19"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 3059
:al-overhead-at-end 7
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3398
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 11724
:visit-id "19"
:orbit-number 2
:pcs-time 195
:si-vis-utilization 3202
:al-overhead-at-end 0
:internal-dur-at-end 703
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3398
:pcs-gap 0
)
true
2
0
Timing link suitability includes constraints ([20 After 16 by at most 40.0 days])
Same orient constraint links visits (16 17 18 19 20 21 22 23 24 25 26 27)
The scheduling data was generated by CASM 17.2.
CASM was run in Phase II mode.
N185 F606W + short4
(Tic-Visit
:proposal-id 11724
:visit-id "20"
:proposal-version -1
:trans-version "20080609"
:date "02-Jul-2008 16:47:28.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 2864848
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11724
:visit-id "20"
:obset-id "20"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11724
:visit-id "20"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 3059
:al-overhead-at-end 7
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3398
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 11724
:visit-id "20"
:orbit-number 2
:pcs-time 195
:si-vis-utilization 3202
:al-overhead-at-end 0
:internal-dur-at-end 703
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3398
:pcs-gap 0
)
true
2
0
Timing link suitability includes constraints ([21 After 16 by at most 40.0 days])
Same orient constraint links visits (16 17 18 19 20 21 22 23 24 25 26 27)
The scheduling data was generated by CASM 17.2.
CASM was run in Phase II mode.
N185 F814W
(Tic-Visit
:proposal-id 11724
:visit-id "21"
:proposal-version -1
:trans-version "20080609"
:date "02-Jul-2008 16:47:29.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 2291872
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11724
:visit-id "21"
:obset-id "21"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11724
:visit-id "21"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 3064
:al-overhead-at-end 0
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3398
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 11724
:visit-id "21"
:orbit-number 2
:pcs-time 195
:si-vis-utilization 3202
:al-overhead-at-end 0
:internal-dur-at-end 1019
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3398
:pcs-gap 0
)
true
2
0
Timing link suitability includes constraints ([22 After 16 by at most 40.0 days])
Same orient constraint links visits (16 17 18 19 20 21 22 23 24 25 26 27)
The scheduling data was generated by CASM 17.2.
CASM was run in Phase II mode.
N185 F814W
(Tic-Visit
:proposal-id 11724
:visit-id "22"
:proposal-version -1
:trans-version "20080609"
:date "02-Jul-2008 16:47:31.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 2291872
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11724
:visit-id "22"
:obset-id "22"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11724
:visit-id "22"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 3064
:al-overhead-at-end 0
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3398
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 11724
:visit-id "22"
:orbit-number 2
:pcs-time 195
:si-vis-utilization 3202
:al-overhead-at-end 0
:internal-dur-at-end 1019
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3398
:pcs-gap 0
)
true
2
0
Timing link suitability includes constraints ([23 After 16 by at most 40.0 days])
Same orient constraint links visits (16 17 18 19 20 21 22 23 24 25 26 27)
The scheduling data was generated by CASM 17.2.
CASM was run in Phase II mode.
N185 F814W
(Tic-Visit
:proposal-id 11724
:visit-id "23"
:proposal-version -1
:trans-version "20080609"
:date "02-Jul-2008 16:47:32.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 2291872
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11724
:visit-id "23"
:obset-id "23"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11724
:visit-id "23"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 3064
:al-overhead-at-end 0
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3398
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 11724
:visit-id "23"
:orbit-number 2
:pcs-time 195
:si-vis-utilization 3202
:al-overhead-at-end 0
:internal-dur-at-end 1019
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3398
:pcs-gap 0
)
true
2
0
Timing link suitability includes constraints ([24 After 16 by at most 40.0 days])
Same orient constraint links visits (16 17 18 19 20 21 22 23 24 25 26 27)
The scheduling data was generated by CASM 17.2.
CASM was run in Phase II mode.
N185 F814W + short1
(Tic-Visit
:proposal-id 11724
:visit-id "24"
:proposal-version -1
:trans-version "20080609"
:date "02-Jul-2008 16:47:33.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 2864848
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11724
:visit-id "24"
:obset-id "24"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11724
:visit-id "24"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 3059
:al-overhead-at-end 7
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3398
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 11724
:visit-id "24"
:orbit-number 2
:pcs-time 195
:si-vis-utilization 3202
:al-overhead-at-end 0
:internal-dur-at-end 703
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3398
:pcs-gap 0
)
true
2
0
Timing link suitability includes constraints ([25 After 16 by at most 40.0 days])
Same orient constraint links visits (16 17 18 19 20 21 22 23 24 25 26 27)
The scheduling data was generated by CASM 17.2.
CASM was run in Phase II mode.
N185 F814W + short2
(Tic-Visit
:proposal-id 11724
:visit-id "25"
:proposal-version -1
:trans-version "20080609"
:date "02-Jul-2008 16:47:34.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 2864848
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11724
:visit-id "25"
:obset-id "25"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11724
:visit-id "25"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 3063
:al-overhead-at-end 7
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3398
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 11724
:visit-id "25"
:orbit-number 2
:pcs-time 195
:si-vis-utilization 3202
:al-overhead-at-end 0
:internal-dur-at-end 703
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3398
:pcs-gap 0
)
true
2
0
Timing link suitability includes constraints ([26 After 16 by at most 40.0 days])
Same orient constraint links visits (16 17 18 19 20 21 22 23 24 25 26 27)
The scheduling data was generated by CASM 17.2.
CASM was run in Phase II mode.
N185 F814W + short3
(Tic-Visit
:proposal-id 11724
:visit-id "26"
:proposal-version -1
:trans-version "20080609"
:date "02-Jul-2008 16:47:36.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 2864848
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11724
:visit-id "26"
:obset-id "26"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11724
:visit-id "26"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 3059
:al-overhead-at-end 7
:internal-dur-at-end 0
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3398
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 11724
:visit-id "26"
:orbit-number 2
:pcs-time 195
:si-vis-utilization 3202
:al-overhead-at-end 0
:internal-dur-at-end 703
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3398
:pcs-gap 0
)
true
2
0
Timing link suitability includes constraints ([27 After 16 by at most 40.0 days])
Same orient constraint links visits (16 17 18 19 20 21 22 23 24 25 26 27)
The scheduling data was generated by CASM 17.2.
CASM was run in Phase II mode.
N185 F814W (1orbit) + short4
(Tic-Visit
:proposal-id 11724
:visit-id "27"
:proposal-version -1
:trans-version "20080609"
:date "02-Jul-2008 16:47:38.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "29"
:si-bright-earth-limb-angle 20.0
:data-volume 1718912
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 11724
:visit-id "27"
:obset-id "27"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 11724
:visit-id "27"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 3063
:al-overhead-at-end 7
:internal-dur-at-end 703
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3398
:pcs-gap 0
)
true
1
0