First submission of program
18-Oct-2021: Resubmission by WJF to include phase windows designed to avoid observing when LCOGT can't see the target-2137820502----- Attempting Submission 1 (Fri Jul 30 20:23:40 GMT 2021) -----
HST Phase II Proposal 16594 successfully submitted.
Receipt: # 16594-1
----- Attempting Submission 2 (Mon Oct 18 18:51:26 GMT 2021) -----ULLYSES T Tauri Survey Star V505 Ori in Sigma OriThe Space Telescope Science Institute (STScI) Director has decided to devote up to 1000 orbits of Director's Discretionary time in observing Cycles 27-29 to a new Hubble Ultraviolet Legacy program focused on star formation and associated stellar physics. This new program, ULLYSES (UV Legacy Library of Young Stars as Essential Standards), will provide a UV spectroscopic reference sample of young (< 10 Myr) high- and low-mass stars. It will target over ~150 OB stars in the Magellanic Clouds and lower metallicity galaxies in the Local Group, and ~40 T Tauri stars and brown dwarfs in the Milky Way. In addition, ULLYSES will monitor 4 typical T Tauri stars over different rotational phases through at least three rotation periods, and over timescales of months to years. The resulting library will provide template spectra of massive stars at metallicities substantially below the well studied, while the low mass sample will cover a wide range of ages, accretion rates, and masses, including objects down to well below 0.5 M_sun. The legacy of this large UV dataset on the first 10 Myr of stellar evolution will be enhanced by complementary datasets obtained by the scientific community. In addition to the core goals of the program related to stellar astrophysics of low and high mass stars, this data will also enable exciting science in the fields of ISM, CGM, jets, and exoplanets. ULLYSES will be modeled after the Frontier Fields program: all data obtained will be non-proprietary. The implementation team at STScI is developing high-level science data products and a sophisticated database and website for disseminating data from the ULLYSES program and ancillary datasets for the ULLYSES target sample from space and ground-based facilities.This proposal includes a subset of the low mass ULLYSES survey stars. Each target will be observed with the COS c1291 + c1589 + c1623 settings, as well as with STIS G230L, G430L, and G750L. All observations will normally be constrained to occur within 1 day.
Signal-to-noise requirements used to determine the desired exposures times were defined as follows:
COS/G130M/c1291: N V 1239 +- 1 A -- S/N=10/6-pix-resel at the peak of the line
COS/G160M/c1589: C IV 1549 +- 1 A -- S/N=20/6-pix-resel at the peak of the line (combined c1589 & c1623)
COS/G160M/c1623: C IV 1549 +- 1 A -- S/N=20/6-pix-resel at the peak of the line (combined c1589 & c1623)
STIS/G230L/52X2: Mg II 2800 +-15 A -- S/N=20/2-pix-resel at the peak of the line
STIS/G430L/52X2: continuum average 4000 +-5 A -- S/N=20/2-pix-resel (2 reads)
STIS/G750L/52X2: continuum average 5700 +-5 A -- S/N=20/2-pix-resel (2 reads)
Additional details about the scientific motivation and technical implementation strategy of the ULLYSES observations can be found at http://www.stsci.edu/stsci-research/research-topics-and-programs/ullyses. The ULLYSES program is based on the recommendations of a working group led by Sally Oey; the full text of that group's report can be found at http://www.stsci.edu/files/live/sites/www/files/home/stsci-research/research-topics-and-programs/ullyses/_documents/HSTUV-report-ULLYSES.pdf.
WJF, 2021 Oct 18: Phase windows have been added to prevent Hubble observations from occurring during the window each day when there are no LCOGT sites where the star has airmass < 2. The exact windows can be worked out with the tool at https://lco.global/observatory/tools/visibility/. The starting times, ending times, and window lengths vary nontrivially. Here we model this in a way that is simpler and more conservative without being overly restrictive. The first visibility window opens at 21:15 on 2021 Nov 13 (zero phase = 2459532.3854). The opening time drifts 2.1875 minutes earlier each day (period = 0.998481 d). The window length (upper phase limit) varies per visit, depending on the number of orbits, because we want the visit to end before the window closes:
Visit 1C: 3 orbits. The window is 20.5 h (1230 min) minus 50 min for the first orbit and 95 min for each of two additional orbits = 990 min. Phase runs from 0 to ( 990 min / (1440 - 2.1875) min ) = 0.688546.
Visit 1S: 1 orbis. The window is 20.5 h (1230 min) minus 50 min for the first orbit = 1180 min. Phase runs from 0 to ( 1180 min / (1440 - 2.1875) min ) = 0.820691.0falseSUPPORTEDSTART TAURI STARPRE-MAIN SEQUENCE STARNOV505 Ori : SO518, J05382725-0245096
Region: sigma Ori
Simbad: https://simbad.u-strasbg.fr/simbad/sim-id?Ident=2MASS+J05382725-0245096&submit=submit+id
Target coordinates are from Gaia DR2.
Spectral type: K6.0 ; A_V: 0.0 ; Distance (pc): 385
M*: 0.754 ; log(dm/dt): -8.54
Input file: combined_todo_survey_tess_sort_v2_Gaia_J_CP_edit.csv
so518_lya2_etc.txt
Calculation performed 2020-07-30T14:20:41, v0.4
-------------------------------------------------------------------------------
tstatus; V505-ORI; P/COS approved for submission; S/STIS approved for submission; P/DS 20/07/21; S/DS 20/07/21
tcheck; APT/SIMBAD target names: ; OK, also Haro 5-10, Kiso A-0976 328, and [HHM2007] 518
tcheck; Target info verification status?; OK
tcheck; Coordinates & P.M. verified, epoch checked?; OK
tcheck; Adopted SED compared to Observations?; Yes,V, R, and I in fair agreement, sloane u also appears good ...
Checked old SED (not current A_V scaled) used by CP for implementation in 16113, located in: box/ullyses_tech/ullyses_proposals/survey_c29/16594/v505-ori/SO518J05382725-0245096J2000SpT=K6.0; A_V=0.00; V=14.16; R=13.54; I=12.85; J=12.0; i_DENIS=12.847Phase windows are not calculated when the gap between schedulable intervals is less than 1 days, assuming no scheduling restrictions for constraint Phase 0.000/0.689.Timing link suitability includes constraints ([Group (1C 1S) Within 1.0 days])The scheduling data was generated by CASM 29.2.CASM was run in Phase II mode./private/var/folders/mk/5ss11qnx2hq98tz1y17xc5080001ws/T/OPVisit3007607012904745172.xmlvstatus; 1C; V505-ORI; P/COS approved for submission; P/DS 29/07/21 ; intrev: complete ; P/RS 29/07/21
vcheck; Enter targ name & Inst. & Resp. Sci.; V505-Ori ; COS ; DS
vcheck; ETC numbers entered in APT?; Yes
vcheck; Any screening violations?; No
vcheck; M-dwarf check complete and added to box folder?; N/A, K star
vcheck; S/N ETC calcs done & documented?; Yes
vcheck; Field images checked & saved?; Yes ...
located in: box/ullyses_tech/ullyses_proposals/survey_c29/16594/v505-ori/
vcheck; Selected ACQ strategy?; PSA, MIRRORB, S/N=40 to allow for brightness variations. Even with 4X upper limit spectrum B.P. only 11.4 cnts/pix/s
vcheck; Possible ACQ or Sci spoilers?; None
vcheck; Field BOT clear?; Yes
vcheck; Visual BOT check for stars not in catalog?; Clear
vcheck; Orbit packing finalized?; yes ...
Obtained 1.19x G160M request & 1.09x G130M request
vcheck; Buffer times optimized?; Yes
vcheck; Verify visit grouping correct; Yes ...
Group 1C, 1S WITHIN 1D added to visit 1S
vcheck; phase constraint for ground based observations added?; Yes
vcheck; BETWEENS for coordinated observations added?; Yes ...
between 14 Nov 2021 00:00:00 and 15 Jan 2022 00:00:00
vcheck; Is visit ready for int. review?; Yes
Allocated COS orbits = 3
NOTE: This visit is a duplicate of Visit 3C from 16113 intended to double COS exposure time on this target. However, the G160M/1611 exposures have been replaced by G160M/1598 & G160M/1623 exposures(Tic-Visit
:proposal-id 16594
:visit-id "1C"
:proposal-version -1
:trans-version "20210514"
:date "18-Oct-2021 14:49:26.0"
: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 304672
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 16594
:visit-id "1C"
:obset-id "1C"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 16594
:visit-id "1C"
:orbit-number 1
:pcs-time 393
:si-vis-utilization 2525
: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 2918
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 16594
:visit-id "1C"
:orbit-number 2
:pcs-time 392
:si-vis-utilization 2526
:al-overhead-at-end 0
:internal-dur-at-end 57
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2918
:pcs-gap 0
)
(Tic-Orbit
:proposal-id 16594
:visit-id "1C"
:orbit-number 3
:pcs-time 392
:si-vis-utilization 2526
:al-overhead-at-end 0
:internal-dur-at-end 353
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2918
:pcs-gap 0
)true30PSA, MIRRORB, so518_lya2_etc.txt, no-renorm, S/N=40 gives COS.ta.1459346, peak local=3 (margin of 16x), 73.9s
PSA, MIRRORB, so518_lya2_x4.00_etc.txt, Texp = 73.9s gives COS.ta.1460253, peak local = 11.4
Alt with BOA, MIRRORA puts unknown in PSA, but this star has SDSS u fainter than 22.1, so not an issue4X BOP Calc so518_lya2_x4.00_etc.txt COS.sp.1526006, BP = 0.100 cnts/pixel/s
default soectrum S/N calc COS.sp.1526010
so518_lya2_etc.txt; cos,fuv,g160m,c1611,psa,mjd#59305; fp-pos=None, segment=None)
Input file: combined_todo_survey_tess_sort_v2_Gaia_J_CP_edit.csv
Spectral type: K6.0 ; A_V: 0.0 ; Distance (pc): 385
M*: 0.754 ; log(dm/dt): -8.54
For exptime=2234.1 s, spectral region:
1549.0 +- 1.0 A achieves SNR=30.0 / 6-pix-resel
A factor of 2.0 has been applied to the exptime in each exposure.
global countrate (brightest segment): 139.9 cts/s/segment
brightest pixel: 0.026 cts/s/pix at 1446.2 A
Calculation performed 2020-07-30T14:20:38, v0.94X BOP Calc so518_lya2_x4.00_etc.txt COS.sp.1526012, BP = 0.100 cnts/pixel/s
default soectrum S/N calc COS.sp.1526013
sso518_lya2_etc.txt; cos,fuv,g160m,c1611,psa,mjd#59305; fp-pos=None, segment=None)
Input file: combined_todo_survey_tess_sort_v2_Gaia_J_CP_edit.csv
Spectral type: K6.0 ; A_V: 0.0 ; Distance (pc): 385
M*: 0.754 ; log(dm/dt): -8.54
For exptime=2234.1 s, spectral region:
1549.0 +- 1.0 A achieves SNR=30.0 / 6-pix-resel
A factor of 2.0 has been applied to the exptime in each exposure.
global countrate (brightest segment): 139.9 cts/s/segment
brightest pixel: 0.026 cts/s/pix at 1446.2 A
Calculation performed 2020-07-30T14:20:38, v0.94X BOP Calc so518_lya2_x4.00_etc.txt COS.sp.1526016, BP = 0.100 cnts/pixel/s
default soectrum S/N calc COS.sp.1526017
sso518_lya2_etc.txt; cos,fuv,g160m,c1611,psa,mjd#59305; fp-pos=None, segment=None)
Input file: combined_todo_survey_tess_sort_v2_Gaia_J_CP_edit.csv
Spectral type: K6.0 ; A_V: 0.0 ; Distance (pc): 385
M*: 0.754 ; log(dm/dt): -8.54
For exptime=2234.1 s, spectral region:
1549.0 +- 1.0 A achieves SNR=30.0 / 6-pix-resel
A factor of 2.0 has been applied to the exptime in each exposure.
global countrate (brightest segment): 139.9 cts/s/segment
brightest pixel: 0.026 cts/s/pix at 1446.2 A
Calculation performed 2020-07-30T14:20:38, v0.94X BOP Calc so518_lya2_x4.00_etc.txt COS.sp.1526019, BP = 0.094 cnts/pixel/s
default soectrum S/N calc COS.sp.1526020
sso518_lya2_etc.txt; cos,fuv,g160m,c1611,psa,mjd#59305; fp-pos=None, segment=None)
Input file: combined_todo_survey_tess_sort_v2_Gaia_J_CP_edit.csv
Spectral type: K6.0 ; A_V: 0.0 ; Distance (pc): 385
M*: 0.754 ; log(dm/dt): -8.54
For exptime=2234.1 s, spectral region:
1549.0 +- 1.0 A achieves SNR=30.0 / 6-pix-resel
A factor of 2.0 has been applied to the exptime in each exposure.
global countrate (brightest segment): 139.9 cts/s/segment
brightest pixel: 0.026 cts/s/pix at 1446.2 A
Calculation performed 2020-07-30T14:20:38, v0.94X BOP Calc so518_lya2_x4.00_etc.txt COS.sp.1526021, PB = 0.094 cnts/pixel/s
default soectrum S/N calc COS.sp.1530643
sso518_lya2_etc.txt; cos,fuv,g160m,c1611,psa,mjd#59305; fp-pos=None, segment=None)
Input file: combined_todo_survey_tess_sort_v2_Gaia_J_CP_edit.csv
Spectral type: K6.0 ; A_V: 0.0 ; Distance (pc): 385
M*: 0.754 ; log(dm/dt): -8.54
For exptime=2234.1 s, spectral region:
1549.0 +- 1.0 A achieves SNR=30.0 / 6-pix-resel
A factor of 2.0 has been applied to the exptime in each exposure.
global countrate (brightest segment): 139.9 cts/s/segment
brightest pixel: 0.026 cts/s/pix at 1446.2 A
Calculation performed 2020-07-30T14:20:38, v0.9Baseline ETC COS.sp.1459352 gives B.P.=0.111 or about 6X below limits ...
4x spectrum so518_lya2_x4.00_etc.txt: COS.sp.1459488, B.P. = 0.143 cnts/pixel/s
so518_lya2_etc.txt; cos,fuv,g130m,c1291,psa,mjd#59305; fp-pos=None, segment=None)
Input file: combined_todo_survey_tess_sort_v2_Gaia_J_CP_edit.csv
Spectral type: K6.0 ; A_V: 0.0 ; Distance (pc): 385
M*: 0.754 ; log(dm/dt): -8.54
For exptime=372.2 s, spectral region:
1239.0 +- 1.0 A achieves SNR=15.0 / 6-pix-resel
A factor of 2.0 has been applied to the exptime in each exposure.
global countrate (brightest segment): 652.9 cts/s/segment
brightest pixel: 0.130 cts/s/pix at 1304.8 A
Calculation performed 2020-07-30T14:20:41, v0.9Baseline ETC COS.sp.1459352 gives B.P.=0.111 or about 6X below limits ... (possibly includes geo-coronal O I in input spectrum as well as ETC)
4x spectrum so518_lya2_x4.00_etc.txt: COS.sp.1459488, B.P. = 0.143 cnts/pixel/s or 4.66X below local limit
so518_lya2_etc.txt; cos,fuv,g130m,c1291,psa,mjd#59305; fp-pos=None, segment=None)
Input file: combined_todo_survey_tess_sort_v2_Gaia_J_CP_edit.csv
Spectral type: K6.0 ; A_V: 0.0 ; Distance (pc): 385
M*: 0.754 ; log(dm/dt): -8.54
For exptime=372.2 s, spectral region:
1239.0 +- 1.0 A achieves SNR=15.0 / 6-pix-resel
A factor of 2.0 has been applied to the exptime in each exposure.
global countrate (brightest segment): 652.9 cts/s/segment
brightest pixel: 0.130 cts/s/pix at 1304.8 A
Calculation performed 2020-07-30T14:20:41, v0.9Phase windows are not calculated when the gap between schedulable intervals is less than 1 days, assuming no scheduling restrictions for constraint Phase 0.000/0.821.Timing link suitability includes constraints ([Group (1C 1S) Within 1.0 days])The scheduling data was generated by CASM 29.2.CASM was run in Phase II mode./private/var/folders/mk/5ss11qnx2hq98tz1y17xc5080001ws/T/OPVisit13559641849782677082.xmlvstatus; 1S; V505-ORI; S/STIS approved for submission; S/DS 29/07/21 ; intrev: complete ; S/RS 29/07/21
vcheck; Enter targ name & Inst. & Resp. Sci.; V505 Ori ; STIS ; DS
vcheck; ETC numbers entered in APT?; Yes
vcheck; Any screening violations?; No
vcheck; M-dwarf check complete and added to box folder?; N/A, K star
vcheck; S/N ETC calcs done & documented?; Yes
vcheck; Field images checked & saved?; Yes ...
located in: box/ullyses_tech/ullyses_proposals/survey_c29/16594/v505-ori/
vcheck; Selected ACQ strategy?; F28X50LP, S/N=80
vcheck; Possible ACQ or Sci spoilers?; None
vcheck; Field BOT clear?; yes
vcheck; Visual BOT check for stars not in catalog?; Clear
vcheck; Orbit packing finalized?; Yes
vcheck; Buffer times optimized?; Yes
vcheck; Verify visit grouping correct; Yes ...
Group 1S, 1C WITHIN 1D added to visit 1S
vcheck; phase constraint for ground based observations added?; Yes
vcheck; BETWEENS for coordinated observations added?; Yes ...
between 14 Nov 2021 00:00:00 and 15 Jan 2022 00:00:00
vcheck; Is visit ready for int. review?; Yes
Allocated STIS orbits = 1
NOTE: This visit is a duplicate of Visit 3S from 16113 intended to double STIS exposure time on this target. Only a G750L/7751 51x0.1 CCDFLAT was added to conform with current strategy(Tic-Visit
:proposal-id 16594
:visit-id "1S"
:proposal-version -1
:trans-version "20210514"
:date "18-Oct-2021 14:49:28.0"
: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 377808
:tdrss-contact-duration 0
:coron NIL
)
(Tic-Obset
:proposal-id 16594
:visit-id "1S"
:obset-id "1S"
:pcs-mode "FGS"
)
(Tic-Orbit
:proposal-id 16594
:visit-id "1S"
:orbit-number 1
:pcs-time 393
:si-vis-utilization 2525
:al-overhead-at-end 116
:internal-dur-at-end 1231
:dark-offset NIL
:dark-utilization 0
:max-dark-utilization 1920
:low-sky "N"
:pcs-visibility 2918
:pcs-gap 0
)true10S/N=80 for basline flux level requires 0.23 sNominal ETC calc STIS.sp.1459465
4X Source ETC Calc STIS.sp.1459550, B.P. = 5.3 cnts/pixel/s
Brightest pixel = 1.322
so518_lya2_etc.txt; stis,nuvmama,g230l,c2376,52x2,mjd#59305
Input file: combined_todo_survey_tess_sort_v2_Gaia_J_CP_edit.csv
Spectral type: K6.0 ; A_V: 0.0 ; Distance (pc): 385
M*: 0.754 ; log(dm/dt): -8.54
For exptime=61.6 s, spectral region:
2800.0 +- 15.0 A achieves SNR=20.0 / 2-pix-resel
A factor of 2.0 has been applied to the exptime in each exposure.
global countrate (brightest segment): 2503.1 cts/s/segment
brightest pixel: 1.322 cts/s/pix at 2796.8 A
Calculation performed 2020-07-30T14:20:41, v0.9Normalize K6 Castelli-Kurucz model to observed V=14.06 with S/N=20 at 4000A and double resulting exposure time
Also check case with accretion spectrum so1153_lya2_x4.00_etc.txt: get ETC# STIS.sp.1470335 - 542s to saturation for gain=1 (vs planned 100s exposures), so plenty of margin even with the 4x spectrum
so518_lya2_etc.txt; stis,ccd,g430l,c4300,52x2,mjd#59305
WARNING: operating mode = ACCUM
Input file: combined_todo_survey_tess_sort_v2_Gaia_J_CP_edit.csv
Spectral type: K6.0 ; A_V: 0.0 ; Distance (pc): 385
M*: 0.754 ; log(dm/dt): -8.54
For exptime=40.1 s, n_reads=2, spectral region:
4000.0 +- 5.0 A achieves SNR=20.0 / 2-pix-resel
A factor of 2.0 has been applied to the exptime in each exposure.
global countrate (brightest segment): 44241.3 cts/s/segment
brightest pixel: 25.603 cts/s/pix at 4560.5 A
Calculation performed 2020-07-30T14:20:41, v0.9Normalize K6 Castelli-Kurucz model to observed I= 12.85 with S/N=20 at 5700A and double resulting exposure time
Also check case with accretion spectrum so1153_lya2_x4.00_etc.txt: get ETC# STIS.sp.1470338 - 85s to saturation for gain=1 (vs planned 16.7s exposures), so plenty of margin even with the 4x spectrum
so518_lya2_etc.txt; stis,ccd,g750l,c7751,52x2,mjd#59305
WARNING: operating mode = ACCUM
Input file: combined_todo_survey_tess_sort_v2_Gaia_J_CP_edit.csv
Spectral type: K6.0 ; A_V: 0.0 ; Distance (pc): 385
M*: 0.754 ; log(dm/dt): -8.54
For exptime=4.6 s, n_reads=2, spectral region:
5700.0 +- 5.0 A achieves SNR=20.0 / 2-pix-resel
A factor of 2.0 has been applied to the exptime in each exposure.
global countrate (brightest segment): 73340.7 cts/s/segment
brightest pixel: 127.387 cts/s/pix at 6563.9 A
Calculation performed 2020-07-30T14:20:41, v0.9so518_lya2_etc.txt; stis,ccd,g750l,c7751,52x2,mjd#59305
WARNING: operating mode = ACCUM
Input file: combined_todo_survey_tess_sort_v2_Gaia_J_CP_edit.csv
Spectral type: K6.0 ; A_V: 0.0 ; Distance (pc): 385
M*: 0.754 ; log(dm/dt): -8.54
For exptime=4.6 s, n_reads=2, spectral region:
5700.0 +- 5.0 A achieves SNR=20.0 / 2-pix-resel
A factor of 2.0 has been applied to the exptime in each exposure.
global countrate (brightest segment): 73340.7 cts/s/segment
brightest pixel: 127.387 cts/s/pix at 6563.9 A
Calculation performed 2020-07-30T14:20:41, v0.9so518_lya2_etc.txt; stis,ccd,g750l,c7751,52x2,mjd#59305
WARNING: operating mode = ACCUM
Input file: combined_todo_survey_tess_sort_v2_Gaia_J_CP_edit.csv
Spectral type: K6.0 ; A_V: 0.0 ; Distance (pc): 385
M*: 0.754 ; log(dm/dt): -8.54
For exptime=4.6 s, n_reads=2, spectral region:
5700.0 +- 5.0 A achieves SNR=20.0 / 2-pix-resel
A factor of 2.0 has been applied to the exptime in each exposure.
global countrate (brightest segment): 73340.7 cts/s/segment
brightest pixel: 127.387 cts/s/pix at 6563.9 A
Calculation performed 2020-07-30T14:20:41, v0.9