0Assigned ID: 6691
----- Attempting Submission 1 (Thu Apr 10 20:57:12 GMT 2025) -----This target is not used in this proposal.
This target is not used in this proposal.
The phase 1 proposal for this program uses the target of opportunity requirement, but this program has not specified the TARGET OF OPPORTUNITY RESPONSE TIME special requirement. Please add this special requirement to each target of opportunity visit.
Target of Opportunity Minimum Response time is a required field.
Target of Opportunity Minimum Response time is a required field.
Target of Opportunity Minimum Response time is a required field.
Target of Opportunity Minimum Response time is a required field.
Target of Opportunity Minimum Response time is a required field.
Target of Opportunity Minimum Response time is a required field.
Target of Opportunity Minimum Response time is a required field.
Target of Opportunity Minimum Response time is a required field.
Target of Opportunity Minimum Response time is a required field.
Target of Opportunity Minimum Response time is a required field.
Target of Opportunity Minimum Response time is a required field.Updating target acquisition exposure times for TDE2 Epoch 3.-660036013----- Attempting Submission 1 (Wed Aug 13 22:36:03 GMT 2025) -----
----- Attempting Submission 2 (Fri Oct 31 18:30:32 GMT 2025) -----
HST Phase II Proposal 18049 successfully submitted.
Receipt: # 18049-2
----- Attempting Submission 3 (Fri Oct 31 22:13:33 GMT 2025) -----
----- Attempting Submission 4 (Thu Mar 26 18:55:45 GMT 2026) -----
----- Attempting Submission 5 (Tue Apr 21 18:45:30 GMT 2026) -----
----- Attempting Submission 6 (Wed Jul 01 19:49:30 GMT 2026) -----Changing target acquisition times only. Target has been confirmed already.Multi-Epoch UV Spectroscopy of Young Tidal Disruption EventsWhen a star wanders too close to a supermassive black hole (SMBH), it can be torn apart by the tidal forces it experiences. This process can create luminous flares of radiation across the electromagnetic spectrum, and spark a multitude of phenomena such as outflows and jets. Despite predictions that these transients would be primarily X-ray ones, in recent years most tidal disruption events (TDEs) have been discovered in the optical/UV with no consensus on the origin of this emission. These large samples of TDEs can be used to probe the SMBH mass function to great distances and smaller masses, as the timing of the optical/UV light curve can be used to weigh the SMBH and probe its spin. This is only possible if we can understand the origin of the optical/UV emission.
With this Cycle 33 program, we propose to observe a sample of young TDEs discovered before peak using STIS to obtain UV spectra. The UV spectra can probe the existence, evolution, and properties of outflows. By observing the evolution of outflows from pre-to-post-peak in TDEs, we can test the models for the optical/UV emission and thereby making great strides toward the goal of using TDEs as indepedent probes of SMBH properties. This goal is especially pressing in the era of upcoming, wide-field surveys and NASA missions which will discover hundreds to thousands of new TDEs.This proposal consists of three disruptive STIS ToO observations 3 different infant tidal disruption events (TDEs), each followed by two additional epochs of observations spaced by ~30 days and ~90 days after the first trigger.
Each trigger will be for a TDE that is spectroscopically confirmed and has a rising optical light curve.
Each object will have the following epochs, which amount to a total of 10 orbits for each object:
- first epoch: 2 orbits, the first using the STIS/NUV-MAMA using G230L; the second using the STIS/FUV-MAMA and G140L; both with the 52x0.2 aperture
- second epoch (~30 days after first epoch): one visit with 2 orbits using the STIS/NUV-MAMA using G230L; another visit of 2 orbits executed within a day of the NUV visit using the STIS/FUV-MAMA and G140L; both with the 52x0.2 aperture
- third epoch (~90 days after first epoch): one visit with 2 orbits using the STIS/NUV-MAMA using G230L; another visit of 2 orbits executed within a day of the NUV visit using the STIS/FUV-MAMA and G140L; both with the 52x0.2 aperture
Each visit requires an ACQ in the first orbit. As these are ToO observations, we do not yet know the exact brightness of the TDE or the host. We expect that the TDE will be a UV-bright point source in the nucleus of redder galaxy. The ACQ process uses the STIS/CCD with the F28X50LP filter, but the host galaxy may dominate in the optical. I have entered placeholder parameters for a diffuse acquisition. The exposure times and checkbox size may be adjusted depending on the actual properties of the target, but we have provided ETC calculations based off a sample target.
A ToO Activation on INFANT-TDE1 should activate Visit 01, Visits 04 and 05 ~30 days later, and Visits 10 and 11 ~90 days after Visit 01.
A ToO Activation on INFANT-TDE2 should activate Visit 02, Visits 06 and 07 ~30 days later, and Visits 12 and 13 ~90 days after Visit 02.
A ToO Activation on INFANT-TDE3 should activate Visit 03, Visits 08 and 09 ~30 days later, and Visits 14 and 15 ~90 days after Visit 03.Dr. Erica Hammerstein is a postdoctoral scholar at UC Berkeley. She has extensive experience with the discovery and classification of TDEs at optical wavelengths and is an expert in interpreting TDE spectra at many wavelengths. She is the PI of a Swift Cyle 21 GI program for high cadence follow-up of infant TDEs. She is also the PI of a Lick/Shane optical spectroscopy ToO program for infant TDE follow-up.
Prof. Ryan Chornock is an associate adjunct professor at UC Berkeley. He is an expert in the study of TDEs at multiple wavelengths and has extensive experience with UV spectral observations of TDEs with HST. He is the PI of several programs using Lick and Keck for TDE classification and follow-up.
Dr. Brad Cenko is an expert on UV observations of TDEs, having published several works on the subject.
Dr. Yuhan Yao is a postdoctoral fellow at UC Berkeley. She has extensive experience discovering and following up TDEs at multiple wavelengths.
Dr. Robert Stein is a postdoctoral fellow at the University of Maryland. He is the lead creator of the tdescore machine-learning algorithm for TDE discovery.
Prof. Raffaella Margutti is an associate professor at UC Berkeley. She is an expert on multiwavelength observations of transients, including TDEs.
Jean Somalwar is a graduate student at Caltech. She has extensive experience with HST observations and is an expert on the discovery and classification of TDEs at multiple wavelengths.
Dr. Itai Sfaradi is a postdoctoral scholar at UC Berkeley. He is an expert at the characterization and interpretation of TDEs at multiple wavelengths.
Dr. Suvi Gezari is an expert on TDEs, with a strong background in UV, optical, and X-ray observations of TDEs.
Prof. Igor Andreoni is an assistant professor at UNC, Chapel Hill. He is an expert on observing transients at multiple wavelengths. He is the PI of several programs to obtain classification spectra of infant TDEs with Gemini and SOAR.Supermassive Black Holes and Active Galaxies6falsetruefalsefalsefalsefalsefalseSUPPORTEDGALAXYACCRETION DISKNUCLEUSJ2000GALAXYACCRETION DISKNUCLEUSThe source is currently on the rise, so will likely be brighter by the time of observation.J2000GALAXYACCRETION DISKNUCLEUSWINDSpectroscopically confirmed TDE with rising optical light curveGALAXYACCRETION DISKNUCLEUSWINDSpectroscopically confirmed TDE with rising optical light curveGALAXYACCRETION DISKNUCLEUSWINDSpectroscopically confirmed TDE with rising optical light curveSTIS/NUV-MAMASpectroscopicNoNoG230L2376STIS/FUV-MAMASpectroscopicNoNoG140L1425STIS/NUV-MAMASpectroscopicNoNoG230L2376STIS/FUV-MAMASpectroscopicNoNoG140L1425STIS/NUV-MAMASpectroscopicNoNoG230L2376STIS/FUV-MAMASpectroscopicNoNoG140L1425STIS/NUV-MAMASpectroscopicNoNoG230L2376STIS/FUV-MAMASpectroscopicNoNoG140L1425STIS/NUV-MAMASpectroscopicNoNoG230L2376STIS/FUV-MAMASpectroscopicNoNoG140L1425STIS/NUV-MAMASpectroscopicNoNoG230L2376STIS/FUV-MAMASpectroscopicNoNoG140L1425STIS/NUV-MAMASpectroscopicNoNoG230L2376STIS/FUV-MAMASpectroscopicNoNoG140L1425STIS/NUV-MAMASpectroscopicNoNoG230L2376STIS/FUV-MAMASpectroscopicNoNoG140L1425STIS/NUV-MAMASpectroscopicNoNoG230L2376STIS/FUV-MAMASpectroscopicNoNoG140L1425Timing link suitability includes constraints ([04 After 01 by 270.0 to 290.0 days] [05 After 01 by 270.0 to 290.0 days])The scheduling data was generated by CASM 33.1.CASM was run in Phase II mode.1762543431000311.6630229641891(Tic-Visit
:proposal-id 18049
:visit-id "01"
:proposal-version -1
:trans-version "20250624"
:date "31-Oct-2025 14:55:54.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 191952
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 18049
:visit-id "01"
:obset-id "01"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 18049
:visit-id "01"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2597
:al-overhead-at-end 0
:internal-dur-at-end 113
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2977
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18049
:visit-id "01"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2597
:al-overhead-at-end 198
:internal-dur-at-end 319
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2977
:pcs-gap 0
)false20Timing link suitability includes constraints ([06 After 02 by 25.0 to 35.0 days] [07 After 02 by 25.0 to 35.0 days])The scheduling data was generated by CASM 34.0.CASM was run in Phase II mode.1774961550000149.9813928334488(Tic-Visit
:proposal-id 18049
:visit-id "02"
:proposal-version -1
:trans-version "20250929"
:date "26-Mar-2026 11:48:40.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 191952
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 18049
:visit-id "02"
:obset-id "02"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 18049
:visit-id "02"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2599
:al-overhead-at-end 0
:internal-dur-at-end 113
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3121
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18049
:visit-id "02"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2599
:al-overhead-at-end 198
:internal-dur-at-end 319
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3121
:pcs-gap 0
)true20Timing link suitability includes constraints ([08 After 03 by 25.0 to 35.0 days] [09 After 03 by 25.0 to 35.0 days])The scheduling data was generated by CASM 33.1.CASM was run in Phase II mode.(Tic-Visit
:proposal-id 18049
:visit-id "03"
:proposal-version -1
:trans-version "20250624"
:date "31-Oct-2025 11:18:34.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 191952
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 18049
:visit-id "03"
:obset-id "03"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 18049
:visit-id "03"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2599
:al-overhead-at-end 0
:internal-dur-at-end 113
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2979
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18049
:visit-id "03"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2599
:al-overhead-at-end 198
:internal-dur-at-end 319
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2979
:pcs-gap 0
)false20Timing link suitability includes constraints ([Sequence (04 05) within 1.0 days] [04 After 01 by 270.0 to 290.0 days] [10 After 04 by 30.0 to 90.0 days])The scheduling data was generated by CASM 33.1.CASM was run in Phase II mode.(Tic-Visit
:proposal-id 18049
:visit-id "04"
:proposal-version -1
:trans-version "20250624"
:date "31-Oct-2025 14:55:54.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 174512
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 18049
:visit-id "04"
:obset-id "04"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 18049
:visit-id "04"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2597
:al-overhead-at-end 0
:internal-dur-at-end 113
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2977
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18049
:visit-id "04"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2597
:al-overhead-at-end 85
:internal-dur-at-end 394
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2977
:pcs-gap 0
)false20Timing link suitability includes constraints ([Sequence (04 05) within 1.0 days] [05 After 01 by 270.0 to 290.0 days] [11 After 05 by 30.0 to 400.0 days])The scheduling data was generated by CASM 33.1.CASM was run in Phase II mode.(Tic-Visit
:proposal-id 18049
:visit-id "05"
:proposal-version -1
:trans-version "20250624"
:date "31-Oct-2025 14:55:55.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 174512
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 18049
:visit-id "05"
:obset-id "05"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 18049
:visit-id "05"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2597
:al-overhead-at-end 0
:internal-dur-at-end 113
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2977
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18049
:visit-id "05"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2597
:al-overhead-at-end 85
:internal-dur-at-end 394
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2977
:pcs-gap 0
)false20Timing link suitability includes constraints ([Sequence (06 07) within 7.0 days])The scheduling data was generated by CASM 34.0.CASM was run in Phase II mode.1779176822000107.92039753017889(Tic-Visit
:proposal-id 18049
:visit-id "06"
:proposal-version -1
:trans-version "20250929"
:date "21-Apr-2026 11:44:02.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 174512
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 18049
:visit-id "06"
:obset-id "06"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 18049
:visit-id "06"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2741
:al-overhead-at-end 0
:internal-dur-at-end 113
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3121
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18049
:visit-id "06"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2741
:al-overhead-at-end 85
:internal-dur-at-end 394
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3121
:pcs-gap 0
)true20Timing link suitability includes constraints ([Sequence (06 07) within 7.0 days])The scheduling data was generated by CASM 34.0.CASM was run in Phase II mode.1779193705000107.92039753017889(Tic-Visit
:proposal-id 18049
:visit-id "07"
:proposal-version -1
:trans-version "20250929"
:date "21-Apr-2026 11:44:02.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 174512
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 18049
:visit-id "07"
:obset-id "07"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 18049
:visit-id "07"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2741
:al-overhead-at-end 0
:internal-dur-at-end 113
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3121
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18049
:visit-id "07"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2741
:al-overhead-at-end 85
:internal-dur-at-end 394
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3121
:pcs-gap 0
)true20Timing link suitability includes constraints ([Sequence (08 09) within 1.0 days] [08 After 03 by 25.0 to 35.0 days] [14 After 08 by 55.0 to 65.0 days])The scheduling data was generated by CASM 33.1.CASM was run in Phase II mode.(Tic-Visit
:proposal-id 18049
:visit-id "08"
:proposal-version -1
:trans-version "20250624"
:date "31-Oct-2025 11:18:40.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 174512
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 18049
:visit-id "08"
:obset-id "08"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 18049
:visit-id "08"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2599
:al-overhead-at-end 0
:internal-dur-at-end 113
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2979
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18049
:visit-id "08"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2599
:al-overhead-at-end 85
:internal-dur-at-end 394
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2979
:pcs-gap 0
)false20Timing link suitability includes constraints ([Sequence (08 09) within 1.0 days] [09 After 03 by 25.0 to 35.0 days] [15 After 09 by 55.0 to 65.0 days])The scheduling data was generated by CASM 33.1.CASM was run in Phase II mode.(Tic-Visit
:proposal-id 18049
:visit-id "09"
:proposal-version -1
:trans-version "20250624"
:date "31-Oct-2025 11:18:42.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 174512
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 18049
:visit-id "09"
:obset-id "09"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 18049
:visit-id "09"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2599
:al-overhead-at-end 0
:internal-dur-at-end 113
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2979
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18049
:visit-id "09"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2599
:al-overhead-at-end 85
:internal-dur-at-end 394
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2979
:pcs-gap 0
)false20Timing link suitability includes constraints ([Sequence (10 11) within 1.0 days] [10 After 04 by 30.0 to 90.0 days])The scheduling data was generated by CASM 33.1.CASM was run in Phase II mode.(Tic-Visit
:proposal-id 18049
:visit-id "10"
:proposal-version -1
:trans-version "20250624"
:date "31-Oct-2025 14:55:55.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 174512
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 18049
:visit-id "10"
:obset-id "10"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 18049
:visit-id "10"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2597
:al-overhead-at-end 0
:internal-dur-at-end 113
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2977
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18049
:visit-id "10"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2597
:al-overhead-at-end 85
:internal-dur-at-end 394
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2977
:pcs-gap 0
)false20Timing link suitability includes constraints ([Sequence (10 11) within 1.0 days] [11 After 05 by 30.0 to 400.0 days])The scheduling data was generated by CASM 33.1.CASM was run in Phase II mode.(Tic-Visit
:proposal-id 18049
:visit-id "11"
:proposal-version -1
:trans-version "20250624"
:date "31-Oct-2025 14:55:55.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 174512
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 18049
:visit-id "11"
:obset-id "11"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 18049
:visit-id "11"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2597
:al-overhead-at-end 0
:internal-dur-at-end 113
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2977
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18049
:visit-id "11"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2597
:al-overhead-at-end 85
:internal-dur-at-end 394
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2977
:pcs-gap 0
)false20Timing link suitability includes constraints ([Sequence (12 13) within 7.0 days])The scheduling data was generated by CASM 34.1.CASM was run in Phase II mode.(Tic-Visit
:proposal-id 18049
:visit-id "12"
:proposal-version -1
:trans-version "20250929"
:date "26-Mar-2026 11:48:30.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 174512
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 18049
:visit-id "12"
:obset-id "12"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 18049
:visit-id "12"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2599
:al-overhead-at-end 0
:internal-dur-at-end 113
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3121
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18049
:visit-id "12"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2599
:al-overhead-at-end 85
:internal-dur-at-end 394
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3121
:pcs-gap 0
)true20Timing link suitability includes constraints ([Sequence (12 13) within 7.0 days])The scheduling data was generated by CASM 34.1.CASM was run in Phase II mode.(Tic-Visit
:proposal-id 18049
:visit-id "13"
:proposal-version -1
:trans-version "20260319"
:date "01-Jul-2026 12:48:53.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 174512
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 18049
:visit-id "13"
:obset-id "13"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 18049
:visit-id "13"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2599
:al-overhead-at-end 0
:internal-dur-at-end 113
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3121
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18049
:visit-id "13"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2599
:al-overhead-at-end 85
:internal-dur-at-end 394
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3121
:pcs-gap 0
)true20Timing link suitability includes constraints ([Sequence (14 15) within 1.0 days] [14 After 08 by 55.0 to 65.0 days])The scheduling data was generated by CASM 33.1.CASM was run in Phase II mode.(Tic-Visit
:proposal-id 18049
:visit-id "14"
:proposal-version -1
:trans-version "20250624"
:date "31-Oct-2025 11:18:49.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 174512
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 18049
:visit-id "14"
:obset-id "14"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 18049
:visit-id "14"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2599
:al-overhead-at-end 0
:internal-dur-at-end 113
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2979
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18049
:visit-id "14"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2599
:al-overhead-at-end 85
:internal-dur-at-end 394
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2979
:pcs-gap 0
)false20Timing link suitability includes constraints ([Sequence (14 15) within 1.0 days] [15 After 09 by 55.0 to 65.0 days])The scheduling data was generated by CASM 33.1.CASM was run in Phase II mode.(Tic-Visit
:proposal-id 18049
:visit-id "15"
:proposal-version -1
:trans-version "20250624"
:date "31-Oct-2025 11:18:48.0"
:trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0
:FATAL-ERRORS 0 :CONTINUABLE-FATALS 0)
:number-of-orbits 2
:saa-model "24"
:si-bright-earth-limb-angle 20.0
:data-volume 174512
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 18049
:visit-id "15"
:obset-id "15"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 18049
:visit-id "15"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2599
:al-overhead-at-end 0
:internal-dur-at-end 113
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2979
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18049
:visit-id "15"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2599
:al-overhead-at-end 85
:internal-dur-at-end 394
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2979
:pcs-gap 0
)false20