Uses available modes to substitute GO for AUTO WAVECALs
Resubmission of June 15, 2016 reduces wavecal times to 50s each to save lamp lifetime.
Analysis of previous lamp exposures shows this to be adqueate for our accuracy needs.
The PI has approved this change.
Also note the special scheduling request that was included with the original submission:
The STIS FUV detector background rate increases with time after detector HV turn-on. Since our target is rather faint, please SCHEDULE EACH VISIT AS THE FIRST FUV MAMA VISIT IN THAT DAY'S SAA FREE BLOCK, and START THE VISIT AS SOON AS POSSIBLE AFTER THAT DAY'S FUV HV RAMPUP. Please don't schedule any two of these visits in the same SAA free block as the second one will see enhanced detector background.1091159420----- Attempting Submission 1 (Mon Jul 20 16:27:47 GMT 2015) -----
----- Attempting Submission 2 (Wed Jun 15 16:01:07 GMT 2016) -----A Precision Measurement of the Mass of the Cepheid V350 SgrAn important HST UV legacy is the measurement of the masses of
Cepheids. HST has provided double-lined spectroscopic binaries
since the orbital velocity amplitude of hot companions can be
measured on high resolution ultraviolet spectra. STIS UV E140H
echelle observations of the Cepheid V350 Sgr will yield a dramatic
improvement in the precision of its mass (5% or 0.25 solar
masses vs the current 17%). This will allow a unique and critical
test of the role of convective overshoot in the evolution of
intermediate mass stars, by coupling the measured mass with a
luminosity. Furthermore, the very accurate masses (1-2%)
recently determined for two Cepheids in eclipsing binaries in
the LMC mean the mass--luminosity relation for Cepheids can
be compared for two metallicities. This will improve both confidence
in the use of Cepheids as primary extragalactic distance indicators
and also our understanding of the evolution of intermediate mass stars.There are four identical visits of three orbits each.
Auto-wavecals will be turned off and replaced with deep wavecals at the beginning and end of each orbit. All but the first wavecal hide in the occultations and or guide-star re-acquisitions.
Other than the initial ACQ, the exposures for each orbit are put into a non-interruptable sequence to ensure that the wavecals stay close in time to each bracketed science exposure.
In each visit:
1st orbit
(1) Acquire target with 3s F28X52OIII ACQ exposure
(2) 3 s ACQ/PEAK with G430L and 0.2X0.09 aperture
(2) 50 s WAVE
(3) 1762 s E140H 1416
(4) 50 s WAVE
2nd and 3rd orbits
(1) 50 s WAVE
(2) 2970 s E140H 1416
(3) 50 s WAVE
--------- Additional Comments ----------
Notes to schedulers:
The STIS FUV detector background rate increases with time after detector HV turn-on. Since our target is rather faint, please SCHEDULE EACH VISIT AS THE FIRST FUV MAMA VISIT IN THAT DAY'S SAA FREE BLOCK, and START THE VISIT AS SOON AS POSSIBLE AFTER THAT DAY'S FUV HV RAMPUP. Please don't schedule any two of these visits in the same SAA free block as the second one will see enhanced detector background.
These observations will provide the final epoch of data for this program. They should occur between 20-Jun-2016 and 01-Oct-2016 to cover the required part of the long period orbit. All visits should be grouped within about five days.
Bright object screening:
The "unknown" objects reported by the BOT are just extra catalog entries for the target itself.
At FUV wavelengths, the SED is dominated by the companion, not the Cephied.
Adopted SED based on the large aperture, low dispersion IUE spectrum SWP44358 + LWR22766; other IUE spectra consistent.
Expect global rate of 157 c/s background + 82 c/s source for E140H, 1416, 0.2X0.09
ETC calculation STIS.sp.507182COOL STARS12falsetruefalsefalsefalse0.00.0falseAVAILABLESTARB6-B9.5 V-IVCEPHEIDCOMPOSITE SPECTRAL TYPEF3-F9Coordinates are from Hipparcos, adjusted for proper motion to epoch 2000.
At FUV wavelengths, the SED is dominated by the ~ B9 or A0 companion, not the Cephied.
Our adopted SED is based on the large aperture, low dispersion IUE spectrum SWP44358 + LWR22766. A few other IUE spectra taken at different epochs are consistent with these, ruling out any large scale FUV variability.
Expect global rate of 157 c/s background + 82 c/s source for E140H, 1416, 0.2X0.09; ETC ID STIS.sp.507182.HD173297HIP92013J2000J2000FLAM(1417)=5e-14STIS/FUV-MAMASpectroscopicNoNoE140H1416STIS/FUV-MAMASpectroscopicNoNoE140H1416Timing link suitability includes constraints ([Group (01 02 03 04) Within 5.0 days])The scheduling data was generated by CASM 24.0.CASM was run in Phase II mode./user/proffitt/research/14332/OP-cache/14332_revised-v01.xmlNote to schedulers: The STIS FUV detector background rate increases with time after detector HV turn-on. Since our target is rather faint (about 3-4X average background), please schedule each visit as the first FUV MAMA visit in that day's SAA free block of orbits, and start the visits as soon as possible after the HV is turned on for the day.(Tic-Visit
:proposal-id 14332
:visit-id "01"
:proposal-version -1
:trans-version "20160322"
:date "14-Jun-2016 11:29:11.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 3
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 523408
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 14332
:visit-id "01"
:obset-id "01"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 14332
:visit-id "01"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 2889
:al-overhead-at-end 0
:internal-dur-at-end 2198
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3222
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 14332
:visit-id "01"
:orbit-number 2
:pcs-time 222
:si-vis-utilization 3000
:al-overhead-at-end 0
:internal-dur-at-end 2198
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3222
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 14332
:visit-id "01"
:orbit-number 3
:pcs-time 222
:si-vis-utilization 3000
:al-overhead-at-end 0
:internal-dur-at-end 608
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3222
:pcs-gap 0
)true30Expect 1e7 e- per dwell point from the sourceAt FUV wavelengths, the SED is dominated by the companion, not the Cephied.
Adopted SED based on the large aperture, low dispersion IUE spectrum SWP44358 + LWR22766; other IUE spectra consistent.
Expect global rate of 157 c/s background + 82 c/s source for E140H, 1416, 0.2X0.09Timing link suitability includes constraints ([Group (01 02 03 04) Within 5.0 days])The scheduling data was generated by CASM 24.0.CASM was run in Phase II mode./user/proffitt/research/14332/OP-cache/14332_revised-v02.xmlNote to schedulers: The STIS FUV detector background rate increases with time after detector HV turn-on. Since our target is rather faint (about 3-4X average background), please schedule each visit as the first FUV MAMA visit in that day's SAA free block of orbits, and start the visits as soon as possible after the HV is turned on for the day.(Tic-Visit
:proposal-id 14332
:visit-id "02"
:proposal-version -1
:trans-version "20160322"
:date "14-Jun-2016 11:29:14.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 3
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 523408
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 14332
:visit-id "02"
:obset-id "02"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 14332
:visit-id "02"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 2889
:al-overhead-at-end 0
:internal-dur-at-end 2198
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3222
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 14332
:visit-id "02"
:orbit-number 2
:pcs-time 222
:si-vis-utilization 3000
:al-overhead-at-end 0
:internal-dur-at-end 2198
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3222
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 14332
:visit-id "02"
:orbit-number 3
:pcs-time 222
:si-vis-utilization 3000
:al-overhead-at-end 0
:internal-dur-at-end 608
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3222
:pcs-gap 0
)true30Expect 1e7 e- per dwell point from the sourceAt FUV wavelengths, the SED is dominated by the companion, not the Cephied.
Adopted SED based on the large aperture, low dispersion IUE spectrum SWP44358 + LWR22766; other IUE spectra consistent.
Expect global rate of 157 c/s background + 82 c/s source for E140H, 1416, 0.2X0.09Timing link suitability includes constraints ([Group (01 02 03 04) Within 5.0 days])The scheduling data was generated by CASM 24.0.CASM was run in Phase II mode./user/proffitt/research/14332/OP-cache/14332_revised-v03.xmlNote to schedulers: The STIS FUV detector background rate increases with time after detector HV turn-on. Since our target is rather faint (about 3-4X average background), please schedule each visit as the first FUV MAMA visit in that day's SAA free block of orbits, and start the visits as soon as possible after the HV is turned on for the day.(Tic-Visit
:proposal-id 14332
:visit-id "03"
:proposal-version -1
:trans-version "20160322"
:date "14-Jun-2016 11:29:17.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 3
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 523408
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 14332
:visit-id "03"
:obset-id "03"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 14332
:visit-id "03"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 2889
:al-overhead-at-end 0
:internal-dur-at-end 2198
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3222
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 14332
:visit-id "03"
:orbit-number 2
:pcs-time 222
:si-vis-utilization 3000
:al-overhead-at-end 0
:internal-dur-at-end 2198
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3222
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 14332
:visit-id "03"
:orbit-number 3
:pcs-time 222
:si-vis-utilization 3000
:al-overhead-at-end 0
:internal-dur-at-end 608
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3222
:pcs-gap 0
)true30Expect 1e7 e- per dwell point from the sourceAt FUV wavelengths, the SED is dominated by the companion, not the Cephied.
Adopted SED based on the large aperture, low dispersion IUE spectrum SWP44358 + LWR22766; other IUE spectra consistent.
Expect global rate of 157 c/s background + 82 c/s source for E140H, 1416, 0.2X0.09Timing link suitability includes constraints ([Group (01 02 03 04) Within 5.0 days])The scheduling data was generated by CASM 24.0.CASM was run in Phase II mode./user/proffitt/research/14332/OP-cache/14332_revised-v04.xmlNote to schedulers: The STIS FUV detector background rate increases with time after detector HV turn-on. Since our target is rather faint (about 3-4X average background), please schedule each visit as the first FUV MAMA visit in that day's SAA free block of orbits, and start the visits as soon as possible after the HV is turned on for the day.(Tic-Visit
:proposal-id 14332
:visit-id "04"
:proposal-version -1
:trans-version "20160322"
:date "14-Jun-2016 11:29:20.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 3
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 523408
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 14332
:visit-id "04"
:obset-id "04"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 14332
:visit-id "04"
:orbit-number 1
:pcs-time 333
:si-vis-utilization 2889
:al-overhead-at-end 0
:internal-dur-at-end 2198
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3222
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 14332
:visit-id "04"
:orbit-number 2
:pcs-time 222
:si-vis-utilization 3000
:al-overhead-at-end 0
:internal-dur-at-end 2198
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3222
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 14332
:visit-id "04"
:orbit-number 3
:pcs-time 222
:si-vis-utilization 3000
:al-overhead-at-end 0
:internal-dur-at-end 608
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3222
:pcs-gap 0
)true30Expect 1e7 e- per dwell point from the sourceAt FUV wavelengths, the SED is dominated by the companion, not the Cephied.
Adopted SED based on the large aperture, low dispersion IUE spectrum SWP44358 + LWR22766; other IUE spectra consistent.
Expect global rate of 157 c/s background + 82 c/s source for E140H, 1416, 0.2X0.09