0
Your proposal could not be saved.
Submission aborted.
Assigned ID: 6205
----- Attempting Submission 1 (Wed Apr 09 06:17:26 GMT 2025) -----
HST Phase I Proposal 6205 successfully submitted.
Receipt: # 6205-1
----- Attempting Submission 2 (Wed Apr 09 15:37:23 GMT 2025) -----
0
----- Attempting Submission 1 (Mon Aug 04 08:23:21 GMT 2025) -----
UV spectroscopy of extremely metal-poor dwarf compact star-forming galaxies with exceptionally strong HeII 4686 emission
We propose to obtain for the first time the full UV spectra of 6 extremely metal-poor compact star-forming galaxies with the hardest ionizing spectra found at low-redshift. The emission line spectra, covering the range from Lyman-alpha to ~2900 Ang, will allow us to constrain the ionizing radiation field of these galaxies in the Lyman continuum and up to high energies (54 eV and higher) and thus to test different scenarios proposed to explain the hard spectra of these galaxies. The data will also allow abundance studies of Carbon and other elements. Finally, it will provide an important reference sample to study extremely metal-poor galaxies (with 2-10 % solar metallicity) with very hard radiation and also to better understand other objects (e.g. sources hosting intermediate-mass black holes, high-z AGN or other unusual objects). In short, the observations will provide fundamental and unique information on the radiation field, nature of the ionizing sources, and ISM properties of these extreme galaxies. And the observations will have an important impact for our understanding of the most metal-poor and first galaxies in the early Universe.
COS/NUV acquisition images of the targets will be obtained with the standard Mirror A and the ACQ/IMAGE mode to reach a S/N>20 inside a 9x9 pixel box centered on the brightest part of the galaxy. This requires on average 120s+2x300s=720s per object. As a bonus, the UV morphology of the selected objects will be studied with these images. Given the redshift of the targets, the complete spectral coverage requires separate COS and STIS observations for each galaxy. The COS/G140L configuration is used to detect emission lines shortward of the C III] 1906, 1908 emission line including Ly-alpha 1216, NV 1240, CIV 1549, NIV] 1486, HeII 1640, OIII] 1661, 1666 lines. Since the C III] 1906, 1908 line falls into the insensitive part of the COS, the STIS/G230L configuration is used to detect this line. As a by-product we expect also to observe MgII 2796, 2803 emission line. GALEX FUV magnitude have been used to calculate the required exposures, to reach S/N > 5 for the continuum near the Ly-alpha line, in the case of a 100-pixel binned spectrum, and S/N= 3 - 5 per STIS G230L pixel in the central ~500A of the spectrum, where the S/N is flat. This S/N will suffice to detect emission lines with equivalent widths above 1-1.5A with sufficient accuracy. To reach this, 1.5-2.5 orbits are needed for the G140L grism, totalling 2-3 orbits per object with acquisition, and 2-3 orbits for STIS depending on source brightness, and including acquisition. A total of 17+17=34 orbits for COS+STIS is therefore requested.
The team has all the expertise, tools, and background to successfully carry out the proposed project. Our team has been responsible for the recent discovery of the low-z strong LyC leakers/emitters with HST/COS observations (Izotov et al. (2016ab, 2018ab, 2021a). These COS observations of z ~ 0.3 - 0.4 compact star-forming galaxies have led to a series of numerous interesting publications on LyC, Ly-alpha, UV absorption lines, outflows, ISM etc. and to significant new insight onto analogs of the sources of cosmic reionization. We can also rely on a large grid of CLOUDY photoionization models, which has recently been computed to examine the behavior of the main UV emission lines in presence of different ionizing spectra (low metallicities, very hot stars, PopIII, and AGN), and which have been confronted to most HST observations of low-z galaxies. The model calculations have also recently been extended to treat the case of density-bounded, i.e. LyC emitting regions (see Schaerer et al. 2018). We have studied in depth C III] 1908 emission in LyC-leaking galaxies and derived carbon abundances of this sample (Izotov et al. 2023). The available rich ancillary data of our targets (including all HST observations, ground-based and UV photometry, optical SDSS spectroscopy) has already been analyzed, and the basic physical properties derived as documented in Izotov et al. (2016ab, 2018b). We have also recently obtained deep high-resolution optical spectra with the ESO Very Large Telescope (VLT), which allows us to search for fainter emission lines and address other questions.
Galaxies
6
false
true
false
false
false
false
SUPPORTED
GALAXY
DWARF COMPACT
STARBURST
NO
J2000
J2000
FUV=22.10, NUV=21.95
GALAXY
DWARF COMPACT
STARBURST
NO
J2000
J2000
FUV=19.27, NUV=19.16
GALAXY
DWARF COMPACT
STARBURST
NO
J2000
J2000
FUV=20.27+/-0.24, NUV=21.19+/-0.28
GALAXY
DWARF COMPACT
STARBURST
NO
J2000
J2000
FUV=22.05, NUV=22.00
GALAXY
DWARF COMPACT
STARBURST
NO
J2000
J2000
FUV=22.01+/-0.41, NUV=22.18+/-0.43
GALAXY
DWARF COMPACT
STARBURST
NO
J2000
J2000
FUV=20.59, NUV=20.74
COS/FUV
Spectroscopic
No
No
G140L
1105
STIS/NUV-MAMA
Spectroscopic
No
No
G230L
2376
COS/FUV
Spectroscopic
No
No
G140L
1105
STIS/NUV-MAMA
Spectroscopic
No
No
G230L
2376
COS/FUV
Spectroscopic
No
No
G140L
1105
STIS/NUV-MAMA
Spectroscopic
No
No
G230L
2376
COS/FUV
Spectroscopic
No
No
G140L
1105
STIS/NUV-MAMA
Spectroscopic
No
No
G230L
2376
COS/FUV
Spectroscopic
No
No
G140L
1105
STIS/NUV-MAMA
Spectroscopic
No
No
G230L
2376
COS/FUV
Spectroscopic
No
No
G140L
1105
STIS/NUV-MAMA
Spectroscopic
No
No
G230L
2376
/home/izotov/out/Proposals/HST/HST_2025_Cycle33/HeII/OP-cache/18044-v01.xml
The scheduling data was generated by CASM 33.1.
CASM was run in Phase II mode.
(Tic-Visit
:proposal-id 18044
:visit-id "01"
:proposal-version -1
:trans-version "20250624"
:date "04-Aug-2025 11:13:09.0"
: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 104592
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 18044
:visit-id "01"
:obset-id "01"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 18044
:visit-id "01"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2603
:al-overhead-at-end 0
:internal-dur-at-end 48
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2983
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18044
:visit-id "01"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2603
:al-overhead-at-end 0
:internal-dur-at-end 48
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2983
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18044
:visit-id "01"
:orbit-number 3
:pcs-time 380
:si-vis-utilization 2603
:al-overhead-at-end 0
:internal-dur-at-end 358
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2983
:pcs-gap 0
)
true
3
0
/home/izotov/out/Proposals/HST/HST_2025_Cycle33/HeII/OP-cache/18044-v02.xml
The scheduling data was generated by CASM 33.1.
CASM was run in Phase II mode.
(Tic-Visit
:proposal-id 18044
:visit-id "02"
:proposal-version -1
:trans-version "20250624"
:date "04-Aug-2025 11:13:10.0"
: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 470048
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 18044
:visit-id "02"
:obset-id "02"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 18044
:visit-id "02"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2603
:al-overhead-at-end 0
:internal-dur-at-end 178
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2983
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18044
:visit-id "02"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2603
:al-overhead-at-end 0
:internal-dur-at-end 339
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2983
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18044
:visit-id "02"
:orbit-number 3
:pcs-time 380
:si-vis-utilization 2603
:al-overhead-at-end 0
:internal-dur-at-end 601
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2983
:pcs-gap 0
)
true
3
0
/home/izotov/out/Proposals/HST/HST_2025_Cycle33/HeII/OP-cache/18044-v03.xml
The scheduling data was generated by CASM 33.1.
CASM was run in Phase II mode.
(Tic-Visit
:proposal-id 18044
:visit-id "03"
:proposal-version -1
:trans-version "20250624"
:date "04-Aug-2025 11:13:11.0"
:trans-errors '(:WARNINGS 0 :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 78480
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 18044
:visit-id "03"
:obset-id "03"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 18044
:visit-id "03"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2631
:al-overhead-at-end 0
:internal-dur-at-end 48
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3011
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18044
:visit-id "03"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2631
:al-overhead-at-end 0
:internal-dur-at-end 358
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3011
:pcs-gap 0
)
true
2
0
/home/izotov/out/Proposals/HST/HST_2025_Cycle33/HeII/OP-cache/18044-v04.xml
The scheduling data was generated by CASM 33.1.
CASM was run in Phase II mode.
(Tic-Visit
:proposal-id 18044
:visit-id "04"
:proposal-version -1
:trans-version "20250624"
:date "04-Aug-2025 11:13:12.0"
: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 383088
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 18044
:visit-id "04"
:obset-id "04"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 18044
:visit-id "04"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2631
:al-overhead-at-end 0
:internal-dur-at-end 178
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3011
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18044
:visit-id "04"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2631
:al-overhead-at-end 0
:internal-dur-at-end 601
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3011
:pcs-gap 0
)
true
2
0
/home/izotov/out/Proposals/HST/HST_2025_Cycle33/HeII/OP-cache/18044-v05.xml
The scheduling data was generated by CASM 33.1.
CASM was run in Phase II mode.
(Tic-Visit
:proposal-id 18044
:visit-id "05"
:proposal-version -1
:trans-version "20250624"
:date "04-Aug-2025 11:13:13.0"
: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 104592
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 18044
:visit-id "05"
:obset-id "05"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 18044
:visit-id "05"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2621
:al-overhead-at-end 0
:internal-dur-at-end 48
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3001
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18044
:visit-id "05"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2621
:al-overhead-at-end 0
:internal-dur-at-end 48
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3001
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18044
:visit-id "05"
:orbit-number 3
:pcs-time 380
:si-vis-utilization 2621
:al-overhead-at-end 0
:internal-dur-at-end 358
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3001
:pcs-gap 0
)
true
3
0
/home/izotov/out/Proposals/HST/HST_2025_Cycle33/HeII/OP-cache/18044-v06.xml
The scheduling data was generated by CASM 33.1.
CASM was run in Phase II mode.
(Tic-Visit
:proposal-id 18044
:visit-id "06"
:proposal-version -1
:trans-version "20250624"
:date "04-Aug-2025 11:13:14.0"
: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 470048
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 18044
:visit-id "06"
:obset-id "06"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 18044
:visit-id "06"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2621
:al-overhead-at-end 0
:internal-dur-at-end 178
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3001
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18044
:visit-id "06"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2621
:al-overhead-at-end 0
:internal-dur-at-end 339
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3001
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18044
:visit-id "06"
:orbit-number 3
:pcs-time 380
:si-vis-utilization 2621
:al-overhead-at-end 0
:internal-dur-at-end 601
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3001
:pcs-gap 0
)
true
3
0
/home/izotov/out/Proposals/HST/HST_2025_Cycle33/HeII/OP-cache/18044-v07.xml
The scheduling data was generated by CASM 33.1.
CASM was run in Phase II mode.
(Tic-Visit
:proposal-id 18044
:visit-id "07"
:proposal-version -1
:trans-version "20250624"
:date "04-Aug-2025 11:13:15.0"
: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 104592
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 18044
:visit-id "07"
:obset-id "07"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 18044
:visit-id "07"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2664
:al-overhead-at-end 0
:internal-dur-at-end 48
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3044
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18044
:visit-id "07"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2664
:al-overhead-at-end 0
:internal-dur-at-end 48
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3044
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18044
:visit-id "07"
:orbit-number 3
:pcs-time 380
:si-vis-utilization 2664
:al-overhead-at-end 0
:internal-dur-at-end 358
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3044
:pcs-gap 0
)
true
3
0
/home/izotov/out/Proposals/HST/HST_2025_Cycle33/HeII/OP-cache/18044-v08.xml
The scheduling data was generated by CASM 33.1.
CASM was run in Phase II mode.
(Tic-Visit
:proposal-id 18044
:visit-id "08"
:proposal-version -1
:trans-version "20250624"
:date "04-Aug-2025 11:13:16.0"
: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 609216
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 18044
:visit-id "08"
:obset-id "08"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 18044
:visit-id "08"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2664
:al-overhead-at-end 0
:internal-dur-at-end 178
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3044
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18044
:visit-id "08"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2664
:al-overhead-at-end 0
:internal-dur-at-end 339
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3044
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18044
:visit-id "08"
:orbit-number 3
:pcs-time 380
:si-vis-utilization 2664
:al-overhead-at-end 0
:internal-dur-at-end 601
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3044
:pcs-gap 0
)
true
3
0
/home/izotov/out/Proposals/HST/HST_2025_Cycle33/HeII/OP-cache/18044-v09.xml
The scheduling data was generated by CASM 33.1.
CASM was run in Phase II mode.
(Tic-Visit
:proposal-id 18044
:visit-id "09"
:proposal-version -1
:trans-version "20250624"
:date "04-Aug-2025 11:13:18.0"
: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 104592
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 18044
:visit-id "09"
:obset-id "09"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 18044
:visit-id "09"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2631
:al-overhead-at-end 0
:internal-dur-at-end 48
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3011
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18044
:visit-id "09"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2631
:al-overhead-at-end 0
:internal-dur-at-end 48
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3011
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18044
:visit-id "09"
:orbit-number 3
:pcs-time 380
:si-vis-utilization 2631
:al-overhead-at-end 0
:internal-dur-at-end 358
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3011
:pcs-gap 0
)
true
3
0
/home/izotov/out/Proposals/HST/HST_2025_Cycle33/HeII/OP-cache/18044-v10.xml
The scheduling data was generated by CASM 33.1.
CASM was run in Phase II mode.
(Tic-Visit
:proposal-id 18044
:visit-id "10"
:proposal-version -1
:trans-version "20250624"
:date "04-Aug-2025 11:13:19.0"
: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 539632
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 18044
:visit-id "10"
:obset-id "10"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 18044
:visit-id "10"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2631
:al-overhead-at-end 0
:internal-dur-at-end 178
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3011
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18044
:visit-id "10"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2631
:al-overhead-at-end 0
:internal-dur-at-end 339
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3011
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18044
:visit-id "10"
:orbit-number 3
:pcs-time 380
:si-vis-utilization 2631
:al-overhead-at-end 0
:internal-dur-at-end 601
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 3011
:pcs-gap 0
)
true
3
0
/home/izotov/out/Proposals/HST/HST_2025_Cycle33/HeII/OP-cache/18044-v11.xml
The scheduling data was generated by CASM 33.1.
CASM was run in Phase II mode.
(Tic-Visit
:proposal-id 18044
:visit-id "11"
:proposal-version -1
:trans-version "20250624"
:date "04-Aug-2025 11:13:20.0"
: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 104592
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 18044
:visit-id "11"
:obset-id "11"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 18044
:visit-id "11"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2612
:al-overhead-at-end 0
:internal-dur-at-end 48
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2992
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18044
:visit-id "11"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2611
:al-overhead-at-end 0
:internal-dur-at-end 48
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2992
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18044
:visit-id "11"
:orbit-number 3
:pcs-time 380
:si-vis-utilization 2611
:al-overhead-at-end 0
:internal-dur-at-end 358
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2992
:pcs-gap 0
)
true
3
0
/home/izotov/out/Proposals/HST/HST_2025_Cycle33/HeII/OP-cache/18044-v12.xml
The scheduling data was generated by CASM 33.1.
CASM was run in Phase II mode.
(Tic-Visit
:proposal-id 18044
:visit-id "12"
:proposal-version -1
:trans-version "20250624"
:date "04-Aug-2025 11:13:21.0"
: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 470048
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 18044
:visit-id "12"
:obset-id "12"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 18044
:visit-id "12"
:orbit-number 1
:pcs-time 380
:si-vis-utilization 2612
:al-overhead-at-end 0
:internal-dur-at-end 178
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2992
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18044
:visit-id "12"
:orbit-number 2
:pcs-time 380
:si-vis-utilization 2612
:al-overhead-at-end 0
:internal-dur-at-end 339
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2992
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 18044
:visit-id "12"
:orbit-number 3
:pcs-time 380
:si-vis-utilization 2612
:al-overhead-at-end 0
:internal-dur-at-end 601
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2992
:pcs-gap 0
)
true
3
0