For G160M observations, please consult Chapter 9 of the COS Instrument Handbook to estimate overheads and the number of exposures per orbit, and consequently the correct lifetime position. Use of LP4 with G160M requires justification in the "Special Requirements" section of the Phase I PDF. Use of the default LP6 with G160M requires no justification. Proposals can be submitted with the warning present.
For G160M observations, please consult Chapter 9 of the COS Instrument Handbook to estimate overheads and the number of exposures per orbit, and consequently the correct lifetime position. Use of LP4 with G160M requires justification in the "Special Requirements" section of the Phase I PDF. Use of the default LP6 with G160M requires no justification. Proposals can be submitted with the warning present.
For G160M observations, please consult Chapter 9 of the COS Instrument Handbook to estimate overheads and the number of exposures per orbit, and consequently the correct lifetime position. Use of LP4 with G160M requires justification in the "Special Requirements" section of the Phase I PDF. Use of the default LP6 with G160M requires no justification. Proposals can be submitted with the warning present.
For G160M observations, please consult Chapter 9 of the COS Instrument Handbook to estimate overheads and the number of exposures per orbit, and consequently the correct lifetime position. Use of LP4 with G160M requires justification in the "Special Requirements" section of the Phase I PDF. Use of the default LP6 with G160M requires no justification. Proposals can be submitted with the warning present.
For G160M observations, please consult Chapter 9 of the COS Instrument Handbook to estimate overheads and the number of exposures per orbit, and consequently the correct lifetime position. Use of LP4 with G160M requires justification in the "Special Requirements" section of the Phase I PDF. Use of the default LP6 with G160M requires no justification. Proposals can be submitted with the warning present.
For G160M observations, please consult Chapter 9 of the COS Instrument Handbook to estimate overheads and the number of exposures per orbit, and consequently the correct lifetime position. Use of LP4 with G160M requires justification in the "Special Requirements" section of the Phase I PDF. Use of the default LP6 with G160M requires no justification. Proposals can be submitted with the warning present.
For G160M observations, please consult Chapter 9 of the COS Instrument Handbook to estimate overheads and the number of exposures per orbit, and consequently the correct lifetime position. Use of LP4 with G160M requires justification in the "Special Requirements" section of the Phase I PDF. Use of the default LP6 with G160M requires no justification. Proposals can be submitted with the warning present.
For G160M observations, please consult Chapter 9 of the COS Instrument Handbook to estimate overheads and the number of exposures per orbit, and consequently the correct lifetime position. Use of LP4 with G160M requires justification in the "Special Requirements" section of the Phase I PDF. Use of the default LP6 with G160M requires no justification. Proposals can be submitted with the warning present.
For G160M observations, please consult Chapter 9 of the COS Instrument Handbook to estimate overheads and the number of exposures per orbit, and consequently the correct lifetime position. Use of LP4 with G160M requires justification in the "Special Requirements" section of the Phase I PDF. Use of the default LP6 with G160M requires no justification. Proposals can be submitted with the warning present.
For G160M observations, please consult Chapter 9 of the COS Instrument Handbook to estimate overheads and the number of exposures per orbit, and consequently the correct lifetime position. Use of LP4 with G160M requires justification in the "Special Requirements" section of the Phase I PDF. Use of the default LP6 with G160M requires no justification. Proposals can be submitted with the warning present.
For G160M observations, please consult Chapter 9 of the COS Instrument Handbook to estimate overheads and the number of exposures per orbit, and consequently the correct lifetime position. Use of LP4 with G160M requires justification in the "Special Requirements" section of the Phase I PDF. Use of the default LP6 with G160M requires no justification. Proposals can be submitted with the warning present.
For G160M observations, please consult Chapter 9 of the COS Instrument Handbook to estimate overheads and the number of exposures per orbit, and consequently the correct lifetime position. Use of LP4 with G160M requires justification in the "Special Requirements" section of the Phase I PDF. Use of the default LP6 with G160M requires no justification. Proposals can be submitted with the warning present.Not sure the PDF attachment was not corrupted in last submission.416970841Assigned ID: 5686
----- Attempting Submission 1 (Tue Mar 26 21:38:18 GMT 2024) -----
HST Phase I Proposal 5686 successfully submitted.
Receipt: # 5686-1
----- Attempting Submission 2 (Tue Mar 26 22:28:57 GMT 2024) -----
HST Phase I Proposal 5686 successfully submitted.
Receipt: # 5686-2
----- Attempting Submission 3 (Tue Mar 26 22:40:21 GMT 2024) -----The warnings refer to the allowed LP positions for COS G160M. Our science can be done with the default LP6 and this will not be a problem for our science goals. We will also use only two FP-POS positions and this in described in the Phase I.Clicking "Run All Tools" does not seem to work. At least it did not run the Target Confirmation tool.224344932----- Attempting Submission 1 (Fri Aug 16 19:16:26 GMT 2024) -----Separating Accretion and Magnetic Activity in Young Brown DwarfsSeveral recent studies have begun to explore accretion physics on planetary mass objects orbiting young stars; however, many of these studies highlight uncertainties in the accretion models used to interpret the observations. The models have been developed and calibrated for stellar accretion. Do they apply to planetary mass objects? Young brown dwarfs provide a natural bridge for connecting accretion studies from stars down to planetary mass obejcts. A key difficulty in diagnosing excess emission produced by accretion is to properly account for emission produced by magnetic activity. This is particularly true for line emission. We will study the FUV and blue optical emission of a sample of a dozen young brown dwarfs spanning the mass range from near the stellar limit down to near the planetary mass limit. Half of our sources show evidence for accretion while half do not. We will use these data to separate out the role of accretion and magnetic activity in producing the observed excess emission in order to test the applicability of models of stellar accretion to very low mass objects such as young giant planets.We will observe each target with COS+G160M with a CENWAVE of
1533 AA. This will deliver spectra in two segments spanning the
wavelength ranges 1342 - 1515 Ang and 1533 - 1707 Ang, containing the
important accretion and activity diagnostics of Si IV at 1400 Ang,
C IV at 1550 Ang, He II at 1640 Ang, C I at 1656 Ang, and
Al II at 1671 Ang. COS+G160M is the most sensitive instrument
available to observe at these wavelengths and will provide a spectral
resolution of ~15,000 which will give us sensitivity to line
broadening and mass motions. Most accreting CTTSs have C IV lines
substantially broader than non-accreting T Tauri stars (Ardila et al.
2013, ApJS, 207, 1) which derive their C IV emission from magnetic activity.
Thus, the line shape provides an additional check with the line strength to
indicate whether accretion is occuring. Because it is
always possible a flare will occur, we will take our spectra in TIMETAG
mode at no cost to S/N. A flare would produce ancillary science that will
be very interesting but is not the focus of this program.
Our targets are in the Taurus star forming region and are selected from Esplin
and Luhman (2019, AJ, 158, 54).
EL19 analyse the full SED of each object and
categorize objects as having primordial accretion disks, transition/debris disks,
or not having a disk. We assume the objects with primordial disks are
accreting, and 6 of our targets (numbers 7, 1, 2, 9, 5, and 12) are these
accreting stars. The other 6 all do not have a detectable disk and are
assumed to not be accreting. EL19 provide extinction
(A$_J$) for each object as well, and we use these in our ETC calculations.
Our primary goal is to measure the C IV and other emission lines noted
above from these 12 objects and to show the accretors have substantially
more emission than the non-accretors.
Because accretion in young stars is primary diagnosed by blue optical spectra
that span the Balmer jump, we also include an observation of each target using
STIS G430L observations covering wavelengths of 3000 - 5700 Ang. Ideally,
the COS and STIS observations should be taken as close in time as possible;
however, we separate them to facilitate scheduling because of SAA passage,
but group them together so that they are taken within
a day. This is the strategy used by the ULLYSES DDT program.
All objects are bright enough in the optical that 1 orbit of STIS G430L observation
will give good S/N in these spectra. The non-accretors are expected to be fainter
in the FUV emission lines, and because they are also fainter in the NUV, the target
acquisition exosures for these need to be longer. As a result, the accreting brown
dwarfs have 2 COS orbits each while the non-accreting stars have 3 COS orbits
each.
Bright Object Protection Checks:
Half of our sample are expected to be accreting brown dwarfs. For these objects, we downloaded the ULLYSES spectrum of the accreting brown dwarf RECX-16 from program 16480. This object is an M6 star. We used its spectrum, scaling by the G magnitudes of the target stars relative to RECX-16 and accounting for reddening using values in Esplin and Luhman (2019, AJ, 158, 54). We used this for our baseline ETC calculations. For a BOP check, we then repeated the ETC calculations with this template spectrum multiplied by a factor of 4 as done in 16480. These checks did not result in any count rate warnings.
For our non-accreting stars, we performed baseline ETC calculations using the Phoenix M dwarf models in the ETC, picking the one closest in effective temperature to our targets and using reddenning values from Esplin and Luhman (2019). To these we added a C IV line doublet using the peak observed C IV flux from very late type dwarfs in Hawley and Johns-Krull (2003, ApJ, 588, L109). This peak line flux value was scaled by distance to the sources as well as the surface area of the objects. For BOP calculations for the non-accretors, we then used the appropriately scaled RECX-16 spectrum as above which contains substantially more UV flux than these baseline calculations as a worst case scenario in case they actually do have some level of accretion. These ETC runs did not yield any count rate warnings.
These BOP ETC runs are given in the comments for each observation exposure in the visits.
We then followed ISR COS 2017-01(v3) to perform BOP flare checks as follows.
For ACQ Imaging:
Using the 9000 K blackbody in the ETC, no warnings occur as long as the U magnitude is fainter than 15.7. Using the ISR methodology, we estimate quiescent U magntiudes for our stars from 19.65 to 23.10. They are all M6 or later in spectral type, so the P=10^-4 delta_U (flare) is -2.8. This means the flare peak U magnitudes range from 16.85 to 20.3. The brightest of these is 16.85, and the ETC run for this is COS.ta.1934125. No warnings result from this.
For FUV Spectroscopy:
Our observed spectral region contains only C IV and Si IV in terms of concerning lines. Ly-a is outside the spectral region recorded, so we do not consider it. From above, the brightest flare expected produces a peak U magnitude of 16.85. This produces an f_U = 7.66e-16 erg cm^-2 s^-1 using equation (6) of the ISR. This produces f_CIV = 2.59e-14 erg cm^-2 s^-1 from equation (2) and f_SIV = 5.92e-15 erg cm^-2 s^-1 from equation (3) of the ISR. We put these flux values into the ETC assuming FWHM 0.2 Ang and line wavelengths of 1548.2 Ang and 1393.8 Ang for C IV and Si IV respectively as directed by the ISR, along with the U continuum for a 9000 K blackbody at U=16.85. We use an exposure time of 2500 sec which is typical of our longest exposures. The ETC run is COS.sp.1934205 with no warnings.Dr. Johns-Krull (Rice) is an expert on young stars and their accretion, outflows, and magnetic activity. He has extensive experience with defining and reducing HST observations to study transition region line emission in young active stars. Dr. Kevin France (UC Boulder) is an expert at HST+COS observations, including defining programs and data reduction. He has extensive expertise on detecting molecular hydrogen and CO around young stars using HST+COS spectra. He has been the PI for several programs that used HST+COS data to analyze molecular hydrogen ad transition region line emission in the FUV. Dr. Gregory Herczeg (Peking University) is an expert on FUV emission from young stars. He has extensive experience in measuring accretion rates on young low mass stars and brown dwarfs. Dr. Laura Flagg is a recent PhD graduate of Rice University working with Dr. Christopher Johns-Krull. She is now a postdoc at Cornell University working primarily on direct detection teachniques, both imaging and spectroscopy, of planets, including young planets, around other stars. Dr. Lisa Prato is a staff astronomer at Lowell Observatory and is an expert on young star and brown dwarf studies. She has extensitve experience in spectroscopic analysis of both young stars and brown dwarfs. Ms. Toni Panzera is completing her first year of graduate study at Rice University. She has begun analyzing C IV emission in the ULYSSES sample of young stars. The proposed observations will form part of her PhD dissertation.Stellar Physics and Stellar TypesExoplanets and Exoplanet Formation6falsetruefalsefalsefalsefalsefalseSUPPORTEDSTARBROWN DWARFM V-IVPRE-MAIN SEQUENCE STARNOThis object was generated by the targetselector and retrieved from the SIMBAD database.J2000J2000STARBROWN DWARFM V-IVPRE-MAIN SEQUENCE STARNOThis object was generated by the targetselector and retrieved from the SIMBAD database.J2000J2000STARBROWN DWARFM V-IVPRE-MAIN SEQUENCE STARNOThis object was generated by the targetselector and retrieved from the SIMBAD database.J2000J2000STARBROWN DWARFM V-IVPRE-MAIN SEQUENCE STARNOObject entered by PI from SIMBAD data.J2000J2000STARBROWN DWARFM V-IVPRE-MAIN SEQUENCE STARNOThis object was generated by the targetselector and retrieved from the SIMBAD database.J2000J2000STARBROWN DWARFM V-IVPRE-MAIN SEQUENCE STARNOThis object was generated by the targetselector and retrieved from the SIMBAD database.J2000J2000STARBROWN DWARFM V-IVPRE-MAIN SEQUENCE STARNOThis object was generated by the targetselector and retrieved from the SIMBAD database.
SIMBAD listed proper motion for this target. When retrieving targets with PM from SIMBAD, APT requests the coordinates be calculated with an epoch of the year 2000. Do not modify this epoch. Always review coordinates using the Target Confirmation tool, which graphically displays the PM.J2000J2000STARBROWN DWARFM V-IVPRE-MAIN SEQUENCE STARNOThis object was generated by the targetselector and retrieved from the SIMBAD database.
SIMBAD listed proper motion for this target. When retrieving targets with PM from SIMBAD, APT requests the coordinates be calculated with an epoch of the year 2000. Do not modify this epoch. Always review coordinates using the Target Confirmation tool, which graphically displays the PM.J2000J2000STARBROWN DWARFM V-IVPRE-MAIN SEQUENCE STARNOObject entered by PI from SIMBAD.
SIMBAD listed proper motion for this target. When retrieving targets with PM from SIMBAD, APT requests the coordinates be calculated with an epoch of the year 2000. Do not modify this epoch. Always review coordinates using the Target Confirmation tool, which graphically displays the PM.J2000J2000STARBROWN DWARFM V-IVPRE-MAIN SEQUENCE STARNOThis object was generated by the targetselector and retrieved from the SIMBAD database.
SIMBAD listed proper motion for this target. When retrieving targets with PM from SIMBAD, APT requests the coordinates be calculated with an epoch of the year 2000. Do not modify this epoch. Always review coordinates using the Target Confirmation tool, which graphically displays the PM.J2000J2000STARBROWN DWARFM V-IVPRE-MAIN SEQUENCE STARNOThis object was generated by the targetselector and retrieved from the SIMBAD database.
SIMBAD listed proper motion for this target. When retrieving targets with PM from SIMBAD, APT requests the coordinates be calculated with an epoch of the year 2000. Do not modify this epoch. Always review coordinates using the Target Confirmation tool, which graphically displays the PM.J2000J2000STARBROWN DWARFM V-IVPRE-MAIN SEQUENCE STARNOThis object was generated by the targetselector and retrieved from the SIMBAD database.
SIMBAD listed proper motion for this target. When retrieving targets with PM from SIMBAD, APT requests the coordinates be calculated with an epoch of the year 2000. Do not modify this epoch. Always review coordinates using the Target Confirmation tool, which graphically displays the PM.J2000J2000COS/FUVSpectroscopicNoNoG160M1533COS/FUVSpectroscopicNoNoG160M1533COS/FUVSpectroscopicNoNoG160M1533COS/FUVSpectroscopicNoNoG160M1533COS/FUVSpectroscopicNoNoG160M1533COS/FUVSpectroscopicNoNoG160M1533COS/FUVSpectroscopicNoNoG160M1533COS/FUVSpectroscopicNoNoG160M1533COS/FUVSpectroscopicNoNoG160M1533COS/FUVSpectroscopicNoNoG160M1533COS/FUVSpectroscopicNoNoG160M1533COS/FUVSpectroscopicNoNoG160M1533STIS/CCDSpectroscopicNoNoG430L4300STIS/CCDSpectroscopicNoNoG430L4300STIS/CCDSpectroscopicNoNoG430L4300STIS/CCDSpectroscopicNoNoG430L4300STIS/CCDSpectroscopicNoNoG430L4300STIS/CCDSpectroscopicNoNoG430L4300STIS/CCDSpectroscopicNoNoG430L4300STIS/CCDSpectroscopicNoNoG430L4300STIS/CCDSpectroscopicNoNoG430L4300STIS/CCDSpectroscopicNoNoG430L4300STIS/CCDSpectroscopicNoNoG430L4300STIS/CCDSpectroscopicNoNoG430L4300Timing link suitability includes constraints ([Group (01 02) Within 1.0 days])The scheduling data was generated by CASM 34.0.CASM was run in Phase II mode./System/Volumes/Data/solaris/user1/armstrong/hst/working/OP-cache/17700-v01.xmlThis is the COS observation for 2 orbits.1761316425000251.94313424882478(Tic-Visit
:proposal-id 17700
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:date "08-Apr-2026 13:11:28.0"
:trans-errors '(:WARNINGS 2 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
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:data-volume 113344
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)
(Tic-Obset
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(Tic-Orbit
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(Tic-Orbit
:proposal-id 17700
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)true22COS.ta.1932453 is the nominal TA ETC run. Actual exposure time padded by a factor of 3 in case accretion rate is lower and therefore star is a bit fainter.
BOP ETC run is COS.ta.1932940 with spectrum multiplied by 4 and no count rate warnings.BOP ETC run is COS.sp.1933020 with input spectrum multiplied by 4 and no count rate warnings.BOP ETC run is COS.sp.1933022 with input spectrum multiplied by 4 and no count rate warnings.Timing link suitability includes constraints ([Group (01 02) Within 1.0 days])The scheduling data was generated by CASM 34.0.CASM was run in Phase II mode./System/Volumes/Data/solaris/user1/armstrong/hst/working/OP-cache/17700-v02.xmlThis is the 1 orbit STIS G430L observation.1761401175000251.86560729531425(Tic-Visit
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:proposal-version -1
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:number-of-orbits 1
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:si-bright-earth-limb-angle 20.0
:data-volume 55632
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
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(Tic-Orbit
:proposal-id 17700
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:orbit-number 1
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:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2983
:pcs-gap 0
)true11Timing link suitability includes constraints ([Group (03 04) Within 1.0 days])The scheduling data was generated by CASM 34.0.CASM was run in Phase II mode./System/Volumes/Data/solaris/user1/armstrong/hst/working/OP-cache/17700-v03.xmlThis is the COS observation for 2 orbits.(Tic-Visit
:proposal-id 17700
:visit-id "03"
:proposal-version -1
:trans-version "20250929"
:date "08-Apr-2026 13:11:29.0"
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:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
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:si-bright-earth-limb-angle 20.0
:data-volume 113344
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
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:visit-id "03"
:obset-id "03"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 17700
:visit-id "03"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2651
:al-overhead-at-end 0
:internal-dur-at-end 2239
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2983
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)
(Tic-Orbit
:proposal-id 17700
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)true22COS.ta.1932956 is nominal TA ETC run for S/N ~ 20. Actual exposure padded by a factor of 3 in case accretion is lower and target is noticeably fainter.
BOP ETC run is COS.ta.1932957 at the requested 120 sec with the input spectrum multiplied by 4. No count rate warnings result.BOP ETC run is COS.sp.1933016 with input spectrum multiplied by 4 and no count rate warnings.BOP ETC run is COS.sp.1933018 with input spectrum multiplied by 4 and no count rate warnings.Timing link suitability includes constraints ([Group (03 04) Within 1.0 days])The scheduling data was generated by CASM 34.0.CASM was run in Phase II mode./System/Volumes/Data/solaris/user1/armstrong/hst/working/OP-cache/17700-v04.xmlThis is the 1 orbit STIS G430L observation.(Tic-Visit
:proposal-id 17700
:visit-id "04"
:proposal-version -1
:trans-version "20250929"
:date "08-Apr-2026 13:11:29.0"
:trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 55632
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
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(Tic-Orbit
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:pcs-visibility 2983
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)true11/System/Volumes/Data/solaris/user1/armstrong/hst/working/OP-cache/17700-v05.xmlTiming link suitability includes constraints ([Group (05 06) Within 2.0 days])The scheduling data was generated by CASM 34.0.CASM was run in Phase II mode.This is the COS observation for 2 orbits.(Tic-Visit
:proposal-id 17700
:visit-id "05"
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:date "28-Apr-2026 15:37:34.0"
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:data-volume 113344
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(Tic-Obset
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(Tic-Orbit
:proposal-id 17700
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:orbit-number 1
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:si-vis-utilization 2525
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:max-dark-utilization 1920
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(Tic-Orbit
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)true20COS.ta.1932602 in nominal ETC TA run for target. Actual exposure padded by factor of 3 in case accretion rate is lower and target is fainter by appreciable amount.
BOP ETC run is COS.ta.1932963 with input spectrum multiplied by 4 and exposure time the full 300 sec. No count rate warnings result.BOP ETC run is COS.sp.1933011 with inpuut spectrum multiplied by 4. No count rate warnings result.BOP ETC run is COS.sp.1933013 with input spectrum multiplied by 4. No count rate warnings result./System/Volumes/Data/solaris/user1/armstrong/hst/working/OP-cache/17700-v06.xmlTiming link suitability includes constraints ([Group (05 06) Within 2.0 days])The scheduling data was generated by CASM 34.0.CASM was run in Phase II mode.This is the 1 orbit STIS G430L observation.(Tic-Visit
:proposal-id 17700
:visit-id "06"
:proposal-version -1
:trans-version "20250929"
:date "28-Apr-2026 15:37:46.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 55632
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
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(Tic-Orbit
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:dark-offset NIL
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:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2983
:pcs-gap 0
)true10Timing link suitability includes constraints ([Group (07 08) Within 1.0 days])The scheduling data was generated by CASM 34.0.CASM was run in Phase II mode./System/Volumes/Data/solaris/user1/armstrong/hst/working/OP-cache/17700-v07.xmlThis is the COS observation for 2 orbits.(Tic-Visit
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:proposal-version -1
:trans-version "20250929"
:date "08-Apr-2026 13:11:30.0"
:trans-errors '(:WARNINGS 2 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "31"
:si-bright-earth-limb-angle 20.0
:data-volume 122048
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 17700
:visit-id "07"
:obset-id "07"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 17700
:visit-id "07"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2642
:al-overhead-at-end 0
:internal-dur-at-end 2248
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2976
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 17700
:visit-id "07"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2643
:al-overhead-at-end 0
:internal-dur-at-end 497
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2976
:pcs-gap 0
)true22COS.ta.1932617 is nominal TA ETC run for target. Actual exposure time is padded by a factor of 3 in case accretion rate is lower and target is noticeable fainter.
BOP ETC run is COS.ta.1932973 where input spectrum is multiplied by 4 and using full exposure of 45 sec. No count rate warnings result.BOP ETC calculation is COS.sp.1933006 with input spectrum multiplied by 4. No warnings result.BOP ETC run is COS.sp.1933008 with input spectrum multiplied by 4. No warnings result.Timing link suitability includes constraints ([Group (07 08) Within 1.0 days])The scheduling data was generated by CASM 34.0.CASM was run in Phase II mode./System/Volumes/Data/solaris/user1/armstrong/hst/working/OP-cache/17700-v08.xmlThis is the 1 orbit STIS G430L observation.(Tic-Visit
:proposal-id 17700
:visit-id "08"
:proposal-version -1
:trans-version "20250929"
:date "08-Apr-2026 13:11:30.0"
:trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 55632
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 17700
:visit-id "08"
:obset-id "08"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 17700
:visit-id "08"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2643
:al-overhead-at-end 0
:internal-dur-at-end 360
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2976
:pcs-gap 0
)true11Timing link suitability includes constraints ([Group (09 10) Within 1.0 days])The scheduling data was generated by CASM 34.0.CASM was run in Phase II mode./System/Volumes/Data/solaris/user1/armstrong/hst/working/OP-cache/17700-v09.xmlThis is the COS observation for 2 orbits.(Tic-Visit
:proposal-id 17700
:visit-id "09"
:proposal-version -1
:trans-version "20250929"
:date "08-Apr-2026 13:11:31.0"
:trans-errors '(:WARNINGS 2 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "31"
:si-bright-earth-limb-angle 20.0
:data-volume 122048
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 17700
:visit-id "09"
:obset-id "09"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 17700
:visit-id "09"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2651
:al-overhead-at-end 0
:internal-dur-at-end 2239
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2983
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 17700
:visit-id "09"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2652
:al-overhead-at-end 0
:internal-dur-at-end 497
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2983
:pcs-gap 0
)true22COS.ta.1932621 is nominal TA ETC run for target. Actual exposure time is padded by a factor of 3 in case accretion rate is lower and targets is noticeably fainter.BOP ETC run is COS.sp.1933024 with input spectrum multiplied by 4. No warnings result.BOP ETC run is COS.sp.1933027 with input spectrum multiplied by 4. No warnings result.Timing link suitability includes constraints ([Group (09 10) Within 1.0 days])The scheduling data was generated by CASM 34.0.CASM was run in Phase II mode./System/Volumes/Data/solaris/user1/armstrong/hst/working/OP-cache/17700-v10.xmlThis is the 1 orbit STIS G430L observation.(Tic-Visit
:proposal-id 17700
:visit-id "10"
:proposal-version -1
:trans-version "20250929"
:date "08-Apr-2026 13:11:31.0"
:trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 55632
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 17700
:visit-id "10"
:obset-id "10"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 17700
:visit-id "10"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2651
:al-overhead-at-end 0
:internal-dur-at-end 360
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2983
:pcs-gap 0
)true11Timing link suitability includes constraints ([Group (11 12) Within 1.0 days])The scheduling data was generated by CASM 34.0.CASM was run in Phase II mode./System/Volumes/Data/solaris/user1/armstrong/hst/working/OP-cache/17700-v11.xmlThis is the COS observation for 2 orbits.1758376706000280.1750276776344(Tic-Visit
:proposal-id 17700
:visit-id "11"
:proposal-version -1
:trans-version "20250929"
:date "08-Apr-2026 13:11:31.0"
:trans-errors '(:WARNINGS 2 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "31"
:si-bright-earth-limb-angle 20.0
:data-volume 113344
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 17700
:visit-id "11"
:obset-id "11"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 17700
:visit-id "11"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2653
:al-overhead-at-end 0
:internal-dur-at-end 2237
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2987
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 17700
:visit-id "11"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2654
:al-overhead-at-end 0
:internal-dur-at-end 497
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2987
:pcs-gap 0
)true22COS.ta.1932633 is nominal TA ETC run for target. Actual exposure time is padded by a factor of 3 in case accretion rate is lower and target is noticeably fainter.BOP ETC run is COS.sp.1933032 with input spectrum multiplied by 4. No warnings result.BOP ETC run is COS.sp.1933036 with input spectrum multiplied by 4. No warnings result.Timing link suitability includes constraints ([Group (11 12) Within 1.0 days])The scheduling data was generated by CASM 34.0.CASM was run in Phase II mode./System/Volumes/Data/solaris/user1/armstrong/hst/working/OP-cache/17700-v12.xmlThis is the 1 orbit STIS G430L observation.1758387850000262.0492116850767(Tic-Visit
:proposal-id 17700
:visit-id "12"
:proposal-version -1
:trans-version "20250929"
:date "08-Apr-2026 13:11:32.0"
:trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 55632
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 17700
:visit-id "12"
:obset-id "12"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 17700
:visit-id "12"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2653
:al-overhead-at-end 0
:internal-dur-at-end 360
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2987
:pcs-gap 0
)true11Timing link suitability includes constraints ([Group (13 14) Within 1.0 days])The scheduling data was generated by CASM 34.0.CASM was run in Phase II mode./System/Volumes/Data/solaris/user1/armstrong/hst/working/OP-cache/17700-v13.xmlThis is the COS observation for 3
orbits.1763108824000238.89392327358985(Tic-Visit
:proposal-id 17700
:visit-id "13"
:proposal-version -1
:trans-version "20250929"
:date "08-Apr-2026 13:11:32.0"
:trans-errors '(:WARNINGS 3 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 3
:saa-model "31"
:si-bright-earth-limb-angle 20.0
:data-volume 148256
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 17700
:visit-id "13"
:obset-id "13"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 17700
:visit-id "13"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2650
:al-overhead-at-end 0
:internal-dur-at-end 2240
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2983
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 17700
:visit-id "13"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2652
:al-overhead-at-end 0
:internal-dur-at-end 2238
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2983
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 17700
:visit-id "13"
:orbit-number 3
:pcs-time 380
:si-vis-utilization 2652
:al-overhead-at-end 0
:internal-dur-at-end 497
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2983
:pcs-gap 0
)true33Non-accreting star. BOP ETC run is COS.ta.1933558 where scaled accreting star template is used. No count rate warnings result.Non-accreting star. BOP ETC run is COS.sp.1933600 with scaled accreting template used.Non-accreting star. BPO ETC run is COS.sp.1933602 using scaled accreting star template. No warnings result.Non-accreting star. BPO ETC run is COS.sp.1933602 using scaled accreting star template. No warnings result.Timing link suitability includes constraints ([Group (13 14) Within 1.0 days])The scheduling data was generated by CASM 34.0.CASM was run in Phase II mode./System/Volumes/Data/solaris/user1/armstrong/hst/working/OP-cache/17700-v14.xmlThis is the 1 orbit STIS G430L observation.1763142662000238.7825851954595(Tic-Visit
:proposal-id 17700
:visit-id "14"
:proposal-version -1
:trans-version "20250929"
:date "08-Apr-2026 13:11:32.0"
:trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 55632
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 17700
:visit-id "14"
:obset-id "14"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 17700
:visit-id "14"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2651
:al-overhead-at-end 0
:internal-dur-at-end 360
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2983
:pcs-gap 0
)true11Timing link suitability includes constraints ([Group (15 16) Within 1.0 days])The scheduling data was generated by CASM 34.0.CASM was run in Phase II mode./System/Volumes/Data/solaris/user1/armstrong/hst/working/OP-cache/17700-v15.xmlThis is the COS observation for 3 orbits.1754676659000263.6367332177557(Tic-Visit
:proposal-id 17700
:visit-id "15"
:proposal-version -1
:trans-version "20250929"
:date "08-Apr-2026 13:11:33.0"
:trans-errors '(:WARNINGS 3 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 3
:saa-model "31"
:si-bright-earth-limb-angle 20.0
:data-volume 156944
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 17700
:visit-id "15"
:obset-id "15"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 17700
:visit-id "15"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2651
:al-overhead-at-end 0
:internal-dur-at-end 2239
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2983
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 17700
:visit-id "15"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2652
:al-overhead-at-end 0
:internal-dur-at-end 2238
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2983
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 17700
:visit-id "15"
:orbit-number 3
:pcs-time 380
:si-vis-utilization 2652
:al-overhead-at-end 0
:internal-dur-at-end 497
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2983
:pcs-gap 0
)true33Non-accreting star. BOP ETC run is COS.ta.1933597 where spectrum of scaled accreting star is input. No count rate warnings result.Non-accreting star. BOP ETC run is COS.sp.1933613 qhwew scaled spectrum of accreting template is used. No warnings result.Non-accreting star. BOP ETC run is COS.sp.1933614 where scaled spectrum of accreting template is used. No warnings result.Non-accreting star. BOP ETC run is COS.sp.1933614 where scaled spectrum of accreting template is used. No warnings result.Timing link suitability includes constraints ([Group (15 16) Within 1.0 days])The scheduling data was generated by CASM 34.0.CASM was run in Phase II mode./System/Volumes/Data/solaris/user1/armstrong/hst/working/OP-cache/17700-v16.xmlThis is the 1 orbit G430L observation.1754693631000263.55812735848883(Tic-Visit
:proposal-id 17700
:visit-id "16"
:proposal-version -1
:trans-version "20250929"
:date "08-Apr-2026 13:11:33.0"
:trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 55632
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 17700
:visit-id "16"
:obset-id "16"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 17700
:visit-id "16"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2651
:al-overhead-at-end 0
:internal-dur-at-end 360
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2983
:pcs-gap 0
)true11/System/Volumes/Data/solaris/user1/armstrong/hst/working/OP-cache/17700-v17.xmlTiming link suitability includes constraints ([Group (17 18) Within 2.0 days])The scheduling data was generated by CASM 34.0.CASM was run in Phase II mode.This is the COS observation for 3 orbits.(Tic-Visit
:proposal-id 17700
:visit-id "17"
:proposal-version -1
:trans-version "20250929"
:date "28-Apr-2026 15:13:27.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 3
:saa-model "31"
:si-bright-earth-limb-angle 20.0
:data-volume 122048
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 17700
:visit-id "17"
:obset-id "17"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 17700
:visit-id "17"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2400
:al-overhead-at-end 0
:internal-dur-at-end 2467
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2979
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 17700
:visit-id "17"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2360
:al-overhead-at-end 0
:internal-dur-at-end 2530
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2979
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 17700
:visit-id "17"
:orbit-number 3
:pcs-time 380
:si-vis-utilization 2360
:al-overhead-at-end 0
:internal-dur-at-end 497
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2979
:pcs-gap 0
)true30Non-accreting star. BOP ETC run is COS.ta.1933632 where scaled accreting template is used. No count rate warnings result.Non-accreting star. BOP ETC run is COS.sp.1933637 using scaled template of an accreting star. No warnings result.Non-accreting star. BOP ETC run is COS.sp.1933637 using scaled template of an accreting star. No warnings result./System/Volumes/Data/solaris/user1/armstrong/hst/working/OP-cache/17700-v18.xmlTiming link suitability includes constraints ([Group (17 18) Within 2.0 days])The scheduling data was generated by CASM 34.0.CASM was run in Phase II mode.This is the 1 orbit G430L observation.(Tic-Visit
:proposal-id 17700
:visit-id "18"
:proposal-version -1
:trans-version "20250929"
:date "28-Apr-2026 15:04:09.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 55632
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 17700
:visit-id "18"
:obset-id "18"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 17700
:visit-id "18"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2447
:al-overhead-at-end 0
:internal-dur-at-end 360
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2979
:pcs-gap 0
)true10Timing link suitability includes constraints ([Group (19 20) Within 1.0 days])The scheduling data was generated by CASM 34.0.CASM was run in Phase II mode./System/Volumes/Data/solaris/user1/armstrong/hst/working/OP-cache/17700-v19.xmlThis is the COS observation for 3 orbits.1758710316000260.983238786612(Tic-Visit
:proposal-id 17700
:visit-id "19"
:proposal-version -1
:trans-version "20250929"
:date "08-Apr-2026 13:11:34.0"
:trans-errors '(:WARNINGS 3 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 3
:saa-model "31"
:si-bright-earth-limb-angle 20.0
:data-volume 122048
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 17700
:visit-id "19"
:obset-id "19"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 17700
:visit-id "19"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2612
:al-overhead-at-end 0
:internal-dur-at-end 2283
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2979
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 17700
:visit-id "19"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2676
:al-overhead-at-end 0
:internal-dur-at-end 2214
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2979
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 17700
:visit-id "19"
:orbit-number 3
:pcs-time 380
:si-vis-utilization 2648
:al-overhead-at-end 0
:internal-dur-at-end 497
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2979
:pcs-gap 0
)true33Non-accreting star. BOP ETC run is COS.ta.1933655 using a scaled accreting template spectrum. No count rate warings result.Non-accreting star. BOP ETC run is COS.sp.1933669 using a scaled accreting template. No warnings result.Non-accreting star. BOP ETC run is COS.sp.1933669 using a scaled accreting template. No warnings result.Timing link suitability includes constraints ([Group (19 20) Within 1.0 days])The scheduling data was generated by CASM 34.0.CASM was run in Phase II mode./System/Volumes/Data/solaris/user1/armstrong/hst/working/OP-cache/17700-v20.xmlThis is the 1 orbit G430L observation.1758738445000261.01458560169783(Tic-Visit
:proposal-id 17700
:visit-id "20"
:proposal-version -1
:trans-version "20250929"
:date "08-Apr-2026 13:11:34.0"
:trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 55632
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 17700
:visit-id "20"
:obset-id "20"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 17700
:visit-id "20"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2647
:al-overhead-at-end 0
:internal-dur-at-end 360
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2979
:pcs-gap 0
)true11Timing link suitability includes constraints ([Group (21 22) Within 1.0 days])The scheduling data was generated by CASM 34.0.CASM was run in Phase II mode./System/Volumes/Data/solaris/user1/armstrong/hst/working/OP-cache/17700-v21.xmlThis is the COS observation for 3 orbits.(Tic-Visit
:proposal-id 17700
:visit-id "21"
:proposal-version -1
:trans-version "20250929"
:date "08-Apr-2026 13:11:35.0"
:trans-errors '(:WARNINGS 3 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 3
:saa-model "31"
:si-bright-earth-limb-angle 20.0
:data-volume 122048
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 17700
:visit-id "21"
:obset-id "21"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 17700
:visit-id "21"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2612
:al-overhead-at-end 0
:internal-dur-at-end 2283
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2983
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 17700
:visit-id "21"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2680
:al-overhead-at-end 0
:internal-dur-at-end 2210
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2983
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 17700
:visit-id "21"
:orbit-number 3
:pcs-time 380
:si-vis-utilization 2652
:al-overhead-at-end 0
:internal-dur-at-end 497
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2983
:pcs-gap 0
)true33Non-accreting star. BOP ETC run is COS.ta.1933700 using scaled accreting star template. No count rate warnings result.Non-accreting star. BOP ETC run is COS.sp.1933704 using scaled spectrum of accreting template. No warnings result.Non-accreting star. BOP ETC run is COS.sp.1933704 using scaled spectrum of accreting template. No warnings result.Timing link suitability includes constraints ([Group (21 22) Within 1.0 days])The scheduling data was generated by CASM 34.0.CASM was run in Phase II mode./System/Volumes/Data/solaris/user1/armstrong/hst/working/OP-cache/17700-v22.xmlThis is the 1 orbit G430L observation.(Tic-Visit
:proposal-id 17700
:visit-id "22"
:proposal-version -1
:trans-version "20250929"
:date "08-Apr-2026 13:11:35.0"
:trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 55632
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 17700
:visit-id "22"
:obset-id "22"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 17700
:visit-id "22"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2651
:al-overhead-at-end 0
:internal-dur-at-end 360
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2983
:pcs-gap 0
)true11Timing link suitability includes constraints ([Group (23 24) Within 1.0 days])The scheduling data was generated by CASM 34.0.CASM was run in Phase II mode./System/Volumes/Data/solaris/user1/armstrong/hst/working/OP-cache/17700-v23.xmlThis is the COS observation for 3 orbits.1761141357000266.70670090026397(Tic-Visit
:proposal-id 17700
:visit-id "23"
:proposal-version -1
:trans-version "20250929"
:date "08-Apr-2026 13:11:36.0"
:trans-errors '(:WARNINGS 3 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 3
:saa-model "31"
:si-bright-earth-limb-angle 20.0
:data-volume 165632
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 17700
:visit-id "23"
:obset-id "23"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 17700
:visit-id "23"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2642
:al-overhead-at-end 0
:internal-dur-at-end 2248
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2976
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 17700
:visit-id "23"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2643
:al-overhead-at-end 0
:internal-dur-at-end 2247
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2976
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 17700
:visit-id "23"
:orbit-number 3
:pcs-time 380
:si-vis-utilization 2643
:al-overhead-at-end 0
:internal-dur-at-end 497
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2976
:pcs-gap 0
)true33Non-accreting star. BOP ETC run is COS.ta.1933708 using scaled spectrum of accreting star template. No count rate warnings result.Non-accreting star. BOP ETC run is COS.sp.1933728 using a scaled spectrum of the accreting star template. No warnings result.Non-accreting star. BOP ETC run is COS.sp.1933731 using scaled spectrum of accreting star template. Now warnings result.Non-accreting star. BOP ETC run is COS.sp.1933731 using scaled spectrum of accreting star template. Now warnings result.Timing link suitability includes constraints ([Group (23 24) Within 1.0 days])The scheduling data was generated by CASM 34.0.CASM was run in Phase II mode./System/Volumes/Data/solaris/user1/armstrong/hst/working/OP-cache/17700-v24.xmlThis is the 1 orbit G430L observation.1761226098000267.0310084687518(Tic-Visit
:proposal-id 17700
:visit-id "24"
:proposal-version -1
:trans-version "20250929"
:date "08-Apr-2026 13:11:36.0"
:trans-errors '(:WARNINGS 1 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 1
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 55632
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 17700
:visit-id "24"
:obset-id "24"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 17700
:visit-id "24"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2643
:al-overhead-at-end 0
:internal-dur-at-end 360
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2976
:pcs-gap 0
)true11