Submission 3, 16 April 2026 -1474139132 Assigned ID: 6978 ----- Attempting Submission 1 (Tue Apr 07 19:46:02 GMT 2026) ----- HST Phase I Proposal 6978 successfully submitted. Receipt: # 6978-1 ----- Attempting Submission 2 (Mon Apr 13 23:00:00 GMT 2026) ----- HST Phase I Proposal 6978 successfully submitted. Receipt: # 6978-2 ----- Attempting Submission 3 (Thu Apr 16 19:44:42 GMT 2026) ----- 0 ----- Attempting Submission 1 (Sat Aug 22 06:16:01 GMT 2026) ----- The ULLYSES Legacy Survey of low-mass pre-main sequence stars offers a once-in-a-lifetime opportunity to revolutionize our understanding of the relationship between young stars, their protoplanetary disks, and their infant exoplanets. However, ULLYSES almost exclusively targeted actively-accreting stars (classical T Tauri stars, CTTS), and we have very limited knowledge of their non-accreting counterparts (weak-lined T Tauri stars, WTTS) due to their lower UV luminosities. We propose to create a library of 40 WTTS to complete the ULLYSES sample and enable impactful science spanning from the beginning of the CTTS stage to the final stage of exoplanets around low-mass stars. This library enables two primary science goals: (1) To measure the most accurate mass accretion rates of young stars in order to constrain the timescale for stellar mass assembly and the onset of planet formation (one of the main science goals of ULLYSES). Contemporaneous Gemini/GHOST spectra will allow us to pair each CTTS with a chromospherically-matched WTTS and establish correlations between optical and UV chromospheric signatures. (2) To provide the most extensive source of FUV-NUV spectra of young stars to date to use for modeling exoplanet atmospheric escape rates and photochemistry for JWST during the most important stage of planet evolution. The CALYPSO WTTS library will complete ULLYSES's legacy in studies of young stars and launch the next phase of exoplanet atmospheric research. We request 74 HST orbits and 11.15 hours on Gemini/GHOST to observe 28 new WTTS. HST COS and STIS are the only instruments that can complete the proposed science goals, which require broad UV spectral coverage (including emission lines) to measure the chromospheric and accretion shock emission. We need COS/G140L and STIS/G230L to fully sample the UV, and STIS G430L and G750L to provide absolute flux calibration for the Gemini spectra and place them in context in case of any variability. Including STIS G430L and G750L spectra does not add extra orbits because they are taken in the same visits as already required for G230L. We will employ the TIME-TAG feature to test for short time- scale changes during the observations. For each target, the number of orbits is based on the exposure time necessary to obtain a minimum continuum SNR of 5 with the 52x2 slit at 2200 A with the STIS G230L grating, 4500 A with G430L, 5500 A with G750L, and SNR=10 at N V with G140L. Inspection of the 12 archival WTTS shows this SNR is suitable for our science goals. These estimates are calculated using existing WTTS spectra of the closest spectral type, scaled by V-band magnitudes and corrected for extinction. Gemini/GHOST obtains high-resolution observations of the Ca ii H & K lines and the IRT simultaneously. Thus, we can measure correlations between these and UV emission signatures that can be applied to data from a broad range of ground-based spectrographs. C. Pittman is a PhD candidate at Boston University. She is an expert in HST data reduction and analysis and in the accretion shock models that will be utilized in this work. She will lead the HST and Gemini data reduction and analysis. C. Espaillat is an expert on young stars and UV variability. She is the co-PI of the ODYSSEUS collaboration, which is working to make the most of the ULLYSES dataset. M. Micolta is a PhD candidate at the University of Michigan. She has expertise in optical X-shooter spectra and will work with the X-shooter and Gemini data to extract luminosities of the CaII lines. N. Calvet is an expert on young stars, accretion, and created the accretion shock models to be used in this analysis. She will assist with interpretation of results. G. Herczeg is an expert on young stars and HST UV observations. He is co-PI of the ODYSSEUS collaboration and will assist with interpretation of results. K. France is an expert in FUV spectra of young and low-mass stars and inferring EUV flux from FUV line fluxes. J. Alcala is an expert in young stars and will help with line luminosity calibrations. C. Manara is an expert on accretion in young stars and optical X-shooter spectra. He will assist with planning the X-Shooter observations and interpretation of results. R. Claes will assist with obtaining X-Shooter observations, performing data reduction, and interpretation of results. C. Robinson and T. Thanathibodee are experts on both continuum and line modeling associated with accretion shocks and will help with interpretation of results. M. Vioque is an expert in populations of YSOs and spectroscopic surveys. J. Campbell-White is an expert in weak-lined T Tauri stars. F. Walter is an expert in T Tauri stars and optical spectroscopy. A. Frasca is an expert in spectral analysis of YSOs to infer their physical properties. J. Owen is an expert in exoplanet atmospheric modeling. M. Schulik is an expert in modeling exoplanet atmospheric fractionation. I. Busa is an expert in chromospheric and transition region studies of young stars. G. Magris and G. Avellaneda are experts in spectroscopy of T Tauri stars and will work on the correlation between the NUV and Ca line luminosities. A. Feinstein is an expert on the early evolution of stellar and planetary systems, with a focus on how stellar activity shapes the evolution of exoplanet atmospheres. Stellar Physics and Stellar Types Exoplanets and Exoplanet Formation 0 false true false false false false false true PRIMARY 1.15 true SUPPORTED STAR PRE-MAIN SEQUENCE STAR T TAURI STAR NO This 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. RX-J1508.6-4423 J2000 J2000 STAR PRE-MAIN SEQUENCE STAR T TAURI STAR NO This 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. RX-J1526.0-4501 J2000 J2000 U 11.97, B 11.67 STAR PRE-MAIN SEQUENCE STAR T TAURI STAR NO This object was generated by the targetselector and retrieved from the SIMBAD database. RX-J1515.8-3331 J2000 J2000 U 12.00, B 11.61 STAR PRE-MAIN SEQUENCE STAR T TAURI STAR NO This 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. CD-25-11378 PZ99-J160843.4-260216 J2000 B 11.16 STAR PRE-MAIN SEQUENCE STAR T TAURI STAR NO This object was generated by the targetselector and retrieved from the SIMBAD database. RX-J0457.5+2014 J2000 J2000 B 11.94, G 10.875 STAR PRE-MAIN SEQUENCE STAR T TAURI STAR NO This object was generated by the targetselector and retrieved from the SIMBAD database. CD-25-11330 PZ99-J160550.5-253313 J2000 J2000 B 11.87, G 10.548 STAR PRE-MAIN SEQUENCE STAR T TAURI STAR NO This 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. 2MASS-J15495920-3629574 J2000 J2000 U 11.98, B 12.59 STAR PRE-MAIN SEQUENCE STAR T TAURI STAR NO This 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. 2MASS-J16085427-3906057 J2000 J2000 U 12.57, B 11.91 STAR PRE-MAIN SEQUENCE STAR T TAURI STAR NO This object was generated by the targetselector and retrieved from the SIMBAD database. CD-39-10162 RX-J1547.6-4018 J2000 J2000 U 12.58, B 12.33 STAR PRE-MAIN SEQUENCE STAR T TAURI STAR NO This object was generated by the targetselector and retrieved from the SIMBAD database. 2MASS-J15383827-3916553 J2000 J2000 B 12.64, G 11.18 STAR PRE-MAIN SEQUENCE STAR T TAURI STAR NO This object was generated by the targetselector and retrieved from the SIMBAD database. CD-36-7429A J2000 J2000 B 12.54 STAR PRE-MAIN SEQUENCE STAR T TAURI STAR NO This 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. K5.5 2MASS-J15380264-3807230 RX-J1538.0-3807 J2000 G 11.92 STAR PRE-MAIN SEQUENCE STAR T TAURI STAR NO This 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. RX-J1555.4-3338 J2000 J2000 U 14.51, B 13.58 STAR PRE-MAIN SEQUENCE STAR T TAURI STAR NO This 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. RX-J1540.7-3756 J2000 J2000 G 11.944 STAR PRE-MAIN SEQUENCE STAR T TAURI STAR NO This object was generated by the targetselector and retrieved from the SIMBAD database. 2MASS-J15430624-3920194 J2000 J2000 G 11.760 STAR PRE-MAIN SEQUENCE STAR T TAURI STAR NO This 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. 2MASS-J04321583+1801387 J2000 J2000 B 13.51 STAR PRE-MAIN SEQUENCE STAR T TAURI STAR NO This 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. V-BX-ANT 2MASS-J10182870-3150029 J2000 B 13.39, G 10.845 STAR PRE-MAIN SEQUENCE STAR T TAURI STAR NO This 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. 2MASS-J04331003+2433433 J2000 J2000 B 13.91 STAR PRE-MAIN SEQUENCE STAR T TAURI STAR NO This 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. SZ-124 2MASS-J16115334-3902158 J2000 J2000 B 14.44 STAR PRE-MAIN SEQUENCE STAR T TAURI STAR NO This object was generated by the targetselector and retrieved from the SIMBAD database. V1249-CEN 2MASS-J12153072-3948426 J2000 J2000 B 13.09 STAR PRE-MAIN SEQUENCE STAR T TAURI STAR NO This object was generated by the targetselector and retrieved from the SIMBAD database. V1215-CEN 2MASS-J11132622-4523427 J2000 J2000 G 11.88 STAR PRE-MAIN SEQUENCE STAR T TAURI STAR NO This object was generated by the targetselector and retrieved from the SIMBAD database. Coordinates are for the A component. Position angle from TWA 13A to TWA 13B: 147.1726 deg ORIENT = PA+45.35 from STIS IHB = 147.1726+45.35 = 192.5226=12.5226=372.5226 From roll ranges report: 30 Mar 2027 010.85 - 015.85 31 Mar 2027 012.55 - 012.55 30 Mar 2028 012.12 - 022.12 Set range 11.5-13.5 deg (and 191.5-193.5 deg) CD-34-7390A CD-34-7390B J2000 J2000 The A component has [V=11.46, B=12.88] and the B has [V=11.96, B=13.43] STAR PRE-MAIN SEQUENCE STAR T TAURI STAR NO This object was generated by the targetselector and retrieved from the SIMBAD database. FLG2003-EPS-CHA-20 J2000 J2000 B 15.85 STAR PRE-MAIN SEQUENCE STAR T TAURI STAR NO This object was generated by the targetselector and retrieved from the SIMBAD database. V-band fluxes derived from the components' Gaia DR3 G and G_BP-G_RP magnitudes. Coordinates are for the A component. Position angle from TWA 15A to TWA 15B: 196.3011 deg ORIENT = PA+45.35 from STIS IHB = 196.3011+45.35 = 241.6511=61.6511 From roll ranges report: *******PROBLEM: NO ORIENT AVAILABILITY IN ROLL REPORT******* Set range [] deg (and [] deg) V1251-CEN J2000 J2000 The A component has V=14.4 and the B has V=14.3 STAR PRE-MAIN SEQUENCE STAR T TAURI STAR NO This 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. V-band flux derived from the Gaia DR3 G and G_BP-G_RP magnitudes. V1251-CEN J2000 J2000 G 13.335 STAR PRE-MAIN SEQUENCE STAR T TAURI STAR NO This 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. V-band flux derived from the Gaia DR3 G and G_BP-G_RP magnitudes. V1250-CEN J2000 J2000 G 13.261 STAR PRE-MAIN SEQUENCE STAR T TAURI STAR NO This 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. HJS91-507 J2000 J2000 U 17.35 STAR PRE-MAIN SEQUENCE STAR T TAURI STAR NO This object was generated by the targetselector and retrieved from the SIMBAD database. THA-15-40 2MASS-J16101219-3921181 J2000 J2000 B 15.70 STAR PRE-MAIN SEQUENCE STAR T TAURI STAR NO This object was generated by the targetselector and retrieved from the SIMBAD database. HBC-47 2MASS-J04312382+2410529 J2000 J2000 B=16.30, G=13.363643 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/CCD Spectroscopic No No G750L 7751 STIS/CCD Imaging No No F28X50LP COS/NUV Imaging No No MIRRORA COS/FUV Spectroscopic No No G140L 1105 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/CCD Spectroscopic No No G750L 7751 STIS/CCD Imaging No No F28X50LP COS/NUV Imaging No No MIRRORA COS/FUV Spectroscopic No No G140L 1105 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/CCD Spectroscopic No No G750L 7751 STIS/CCD Imaging No No F28X50LP COS/NUV Imaging No No MIRRORA COS/FUV Spectroscopic No No G140L 1105 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/CCD Spectroscopic No No G750L 7751 STIS/CCD Imaging No No F28X50LP COS/NUV Imaging No No MIRRORA COS/FUV Spectroscopic No No G140L 1105 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/CCD Spectroscopic No No G750L 7751 STIS/CCD Imaging No No F28X50LP COS/NUV Imaging No No MIRRORA COS/FUV Spectroscopic No No G140L 1105 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/CCD Spectroscopic No No G750L 7751 STIS/CCD Imaging No No F28X50LP COS/NUV Imaging No No MIRRORA COS/FUV Spectroscopic No No G140L 1105 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/CCD Spectroscopic No No G750L 7751 STIS/CCD Imaging No No F28X50LP COS/NUV Imaging No No MIRRORA COS/FUV Spectroscopic No No G140L 1105 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/CCD Spectroscopic No No G750L 7751 STIS/CCD Imaging No No F28X50LP COS/NUV Imaging No No MIRRORA COS/FUV Spectroscopic No No G140L 1105 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/CCD Spectroscopic No No G750L 7751 STIS/CCD Imaging No No F28X50LP COS/NUV Imaging No No MIRRORA COS/FUV Spectroscopic No No G140L 1105 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/CCD Spectroscopic No No G750L 7751 STIS/CCD Imaging No No F28X50LP COS/NUV Imaging No No MIRRORA COS/FUV Spectroscopic No No G140L 1105 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/CCD Spectroscopic No No G750L 7751 STIS/CCD Imaging No No F28X50LP COS/NUV Imaging No No MIRRORA COS/FUV Spectroscopic No No G140L 1105 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/CCD Spectroscopic No No G750L 7751 STIS/CCD Imaging No No F28X50LP COS/NUV Imaging No No MIRRORA COS/FUV Spectroscopic No No G140L 1105 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/CCD Spectroscopic No No G750L 7751 STIS/CCD Imaging No No F28X50LP COS/NUV Imaging No No MIRRORA COS/FUV Spectroscopic No No G140L 1105 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/CCD Spectroscopic No No G750L 7751 STIS/CCD Imaging No No F28X50LP COS/NUV Imaging No No MIRRORA COS/FUV Spectroscopic No No G140L 1105 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/CCD Spectroscopic No No G750L 7751 STIS/CCD Imaging No No F28X50LP STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/CCD Spectroscopic No No G750L 7751 STIS/CCD Imaging No No F28X50LP COS/NUV Imaging No No MIRRORA COS/FUV Spectroscopic No No G140L 1105 COS/NUV Imaging No No MIRRORA COS/FUV Spectroscopic No No G140L 1105 COS/NUV Imaging No No MIRRORA COS/FUV Spectroscopic No No G140L 1105 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/CCD Spectroscopic No No G750L 7751 STIS/CCD Imaging No No F28X50LP STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/CCD Spectroscopic No No G750L 7751 STIS/CCD Imaging No No F28X50LP COS/NUV Imaging No No MIRRORA COS/FUV Spectroscopic No No G140L 1105 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/CCD Spectroscopic No No G750L 7751 STIS/CCD Imaging No No F28X50LP COS/NUV Imaging No No MIRRORA COS/FUV Spectroscopic No No G140L 1105 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/CCD Spectroscopic No No G750L 7751 STIS/CCD Imaging No No F28X50LP COS/NUV Imaging No No MIRRORA COS/FUV Spectroscopic No No G140L 1105 STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/CCD Spectroscopic No No G750L 7751 STIS/CCD Imaging No No F28X50LP COS/FUV Spectroscopic No No G140L 1105 COS/NUV Imaging No No MIRRORA STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/CCD Spectroscopic No No G750L 7751 STIS/CCD Imaging No No F28X50LP COS/FUV Spectroscopic No No G140L 1105 COS/NUV Imaging No No MIRRORA STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/CCD Spectroscopic No No G750L 7751 STIS/CCD Imaging No No F28X50LP COS/FUV Spectroscopic No No G140L 1105 COS/NUV Imaging No No MIRRORA STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/CCD Spectroscopic No No G750L 7751 STIS/CCD Imaging No No F28X50LP COS/FUV Spectroscopic No No G140L 1105 COS/NUV Imaging No No MIRRORA STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/CCD Spectroscopic No No G750L 7751 STIS/CCD Imaging No No F28X50LP COS/FUV Spectroscopic No No G140L 1105 COS/NUV Imaging No No MIRRORA STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/CCD Spectroscopic No No G750L 7751 STIS/CCD Imaging No No F28X50LP COS/FUV Spectroscopic No No G140L 1105 COS/NUV Imaging No No MIRRORA STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/CCD Spectroscopic No No G750L 7751 STIS/CCD Imaging No No F28X50LP COS/FUV Spectroscopic No No G140L 1105 COS/NUV Imaging No No MIRRORA STIS/NUV-MAMA Spectroscopic No No G230L 2376 STIS/CCD Spectroscopic No No G430L 4300 STIS/CCD Spectroscopic No No G750L 7751 STIS/CCD Imaging No No F28X50LP COS/FUV Spectroscopic No No G140L 1105 COS/NUV Imaging No No MIRRORA 1787376664929 /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit18324649309912076888.xml Timing link suitability includes constraints ([Group (1C 1S) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. UV ETC Template is a K0 WTTS LkCa 19 G8 (Tic-Visit :proposal-id 18363 :visit-id "1C" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:04.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "1C" :obset-id "1C" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "1C" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2620 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3001 :pcs-gap 0 ) true 1 0 SNR = 20 in 5.2s, ETC 2360992 SNR = 30 in 12s, ETC 2367070 Brightest Pixel (single exposure) = 10.4 counts/s Goal: SNR=10 at NV doublet (1238.8A and 1242.8A, with typical flux ratio of 2:1). - Worst case uses the lowest-observed NV flux for WTTS, scaled to target distance. - Expected case uses mean observed NV flux for WTTS, scaled to target distance. Worst case SNR = 10 at 1238.8A (per resolution element) in 2618s, ETC 2367073 Expected SNR = 10 at 1238.8A (per resolution element) in 1063s, ETC 2367074 1948s total exposure time gives expected SNR=13.5 at 1238.8A, ETC 2367080 Buffer time = 14,584 * 2/3 = 9723 Brightest Pixel (single exposure) (at 1335.75 A) = 0.017 counts/s (C II), ETC 2367079 1787376667793 Timing link suitability includes constraints ([Group (1C 1S) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit10265635873826673253.xml UV ETC Template is a K0 WTTS LkCa 19 G8 (Tic-Visit :proposal-id 18363 :visit-id "1S" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:07.0" :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 377792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "1S" :obset-id "1S" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "1S" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2621 :al-overhead-at-end 116 :internal-dur-at-end 1289 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3001 :pcs-gap 0 ) true 1 0 SNR=150 with 0.05s, ETC 2367117 0.2s gives SNR=290, ETC 2367127 Saturates in 0.75s 1297s gives SNR = 10.6 at 2200A, ETC 2367130 BUFFER-TIME = 1448 * 4/5 = 1158 Saturation in 140s 10.5s exposure gives SNR = 99, run number 2367129. Total counts > 9000, so no need for E1 pseudoaperture. Exposure times give warning: Electrons per pixel due to background is less than the recommended threshold of 20 electrons to avoid poor charge transfer efficiency (CTE). We suggest you consider CTE mitigation strategies described in the STIS Instrument Handbook. Saturation in 75s 8s exposure gives SNR = 99, run number 2367128. Total counts > 9000, so no need for E1 pseudoaperture. Exposure times give warning: Electrons per pixel due to background is less than the recommended threshold of 20 electrons to avoid poor charge transfer efficiency (CTE). We suggest you consider CTE mitigation strategies described in the STIS Instrument Handbook. 1787376669000 /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit17465505594599885490.xml Timing link suitability includes constraints ([Group (2C 2S) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. UV ETC Template is a K0 WTTS LkCa 19 G9 (Tic-Visit :proposal-id 18363 :visit-id "2C" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:08.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "2C" :obset-id "2C" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "2C" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2630 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3011 :pcs-gap 0 ) true 1 0 SNR = 30 in 18.6s, ETC 2367090 Goal: SNR=10 at NV doublet (1238.8A and 1242.8A, with typical flux ratio of 2:1). - Worst case uses the lowest-observed NV flux for WTTS, scaled to target distance. - Expected case uses mean observed NV flux for WTTS, scaled to target distance. Worst case SNR = 10 at 1238.8A (per resolution element) in 3240s, ETC 2367091 Expected SNR = 10 at 1238.8A (per resolution element) in 1201s, ETC 2367092 1944s total exposure time gives expected SNR=12.7 at 1238.8A, ETC 2367094 Buffer time = 15,524 * 2/3 = 10349 Brightest Pixel (single exposure) (at 1335.75 A) = 0.011 counts/s (C II), ETC 2367095 1787376671864 Timing link suitability includes constraints ([Group (2C 2S) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit10957262532244394217.xml UV ETC Template is a K0 WTTS LkCa 19 G9 (Tic-Visit :proposal-id 18363 :visit-id "2S" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:11.0" :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 377792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "2S" :obset-id "2S" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "2S" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2627 :al-overhead-at-end 116 :internal-dur-at-end 1289 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3011 :pcs-gap 0 ) true 1 0 SNR=150 with 0.07s, ETC 2367134 Saturates in 0.9s 1295s gives SNR = 8 at 2200A, ETC 2367133 Buffer time = 1707 * 4/5 = 1366 Saturation in 190s 15.6s exposure gives SNR = 100, run number 2367132. Total counts > 9000, so no need for E1 pseudoaperture. Exposure times give warning: Electrons per pixel due to background is less than the recommended threshold of 20 electrons to avoid poor charge transfer efficiency (CTE). We suggest you consider CTE mitigation strategies described in the STIS Instrument Handbook. Saturation in 97s 10.9s exposure gives SNR = 99, run number 2367131. Total counts > 9000, so no need for E1 pseudoaperture. Exposure times give warning: Electrons per pixel due to background is less than the recommended threshold of 20 electrons to avoid poor charge transfer efficiency (CTE). 1787376674174 /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit7106954410642577604.xml Timing link suitability includes constraints ([Group (3C 3S) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. UV ETC Template is a K0 WTTS LkCa 19 K0.5 (Tic-Visit :proposal-id 18363 :visit-id "3C" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:13.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "3C" :obset-id "3C" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "3C" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2606 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2987 :pcs-gap 0 ) true 1 0 SNR = 30 in 16s, ETC 2367096 Brightest Pixel (single exposure) = 7.8 counts/s Count rate entire detector = 1,175 counts/s Goal: SNR=10 at NV doublet (1238.8A and 1242.8A, with typical flux ratio of 2:1). - Worst case uses the lowest-observed NV flux for WTTS, scaled to target distance. - Expected case uses mean observed NV flux for WTTS, scaled to target distance. Worst case SNR = 10 at 1238.8A (per resolution element) in 2131s, ETC 2367099 Expected SNR = 10 at 1238.8A (per resolution element) in 738s, ETC 2367101 1924s total exposure time gives expected SNR=16 at 1238.8A, ETC 2367102 Buffer time = 15,298 * 2/3 = 10199 Brightest Pixel (single exposure) (at 1335.75 A) = 0.012 counts/s (C II), ETC 2367103 1787376676062 Timing link suitability includes constraints ([Group (3C 3S) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit12424938014451694967.xml UV ETC Template is a K0 WTTS LkCa 19 K0.5 (Tic-Visit :proposal-id 18363 :visit-id "3S" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:15.0" :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 377792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "3S" :obset-id "3S" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "3S" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2607 :al-overhead-at-end 116 :internal-dur-at-end 1289 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2987 :pcs-gap 0 ) true 1 0 SNR=150 with 0.05s, ETC 2367135 Saturates in 0.7s 1281s gives SNR = 8.7 at 2200A, ETC 2367138 BUFFER-TIME = 1642 * 4/5 = 1314 Saturation in 142s 12.7s exposure gives SNR = 100, run number 2367137. Total counts > 9000, so no need for E1 pseudoaperture. Exposure times give warning: Electrons per pixel due to background is less than the recommended threshold of 20 electrons to avoid poor charge transfer efficiency (CTE). We suggest you consider CTE mitigation strategies described in the STIS Instrument Handbook. Saturation in 71s 8.2s exposure gives SNR = 100, run number 2367136. Total counts > 9000, so no need for E1 pseudoaperture. 1787376677246 /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit3789379314277477695.xml Timing link suitability includes constraints ([Group (4C 4S) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. UV ETC Template is a K0 WTTS LkCa 19 K0.5 (Tic-Visit :proposal-id 18363 :visit-id "4C" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:16.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "4C" :obset-id "4C" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "4C" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2602 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2983 :pcs-gap 0 ) true 1 0 SNR = 30 in 12s, ETC 2367104 Brightest Pixel (single exposure) = 10.7 counts/s Count rate entire detector = 1,205 counts/s Goal: SNR=10 at NV doublet (1238.8A and 1242.8A, with typical flux ratio of 2:1). - Worst case uses the lowest-observed NV flux for WTTS, scaled to target distance. - Expected case uses mean observed NV flux for WTTS, scaled to target distance. Worst case SNR = 10 at 1238.8A (per resolution element) in 2448s, ETC 2367106 Expected SNR = 10 at 1238.8A (per resolution element) in 969s, ETC 2367107 1928s total exposure time gives expected SNR=14.1 at 1238.8A, ETC 2367108 Buffer time = 14,597 * 2/3 = 9731 Brightest Pixel (single exposure) (at 1335.75 A) ~ 0.012 counts/s (C II) 1787376679107 Timing link suitability includes constraints ([Group (4C 4S) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit12696514421288105885.xml UV ETC Template is a K0 WTTS LkCa 19 K0.5 (Tic-Visit :proposal-id 18363 :visit-id "4S" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:18.0" :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 377792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "4S" :obset-id "4S" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "4S" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2603 :al-overhead-at-end 116 :internal-dur-at-end 1289 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2983 :pcs-gap 0 ) true 1 0 SNR=150 with 0.04s, ETC 2367139 Saturates in 0.5s 1281s gives SNR = 10.5 at 2200A, ETC 2367142 BUFFER-TIME = 1452 * 4/5 = 1162 Saturation in 109s 9.5s exposure gives SNR = 100, run number 2367141. Total counts > 9000, so no need for E1 pseudoaperture. Exposure times give warning: Electrons per pixel due to background is less than the recommended threshold of 20 electrons to avoid poor charge transfer efficiency (CTE). We suggest you consider CTE mitigation strategies described in the STIS Instrument Handbook. Saturation in 56s 6.4s exposure gives SNR = 100, run number 2367140. Total counts > 9000, so no need for E1 pseudoaperture. 1787376680032 /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit13665529451405507838.xml Timing link suitability includes constraints ([Group (5C 5S) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. UV ETC Template is a K0 WTTS LkCa 19 K1 (Tic-Visit :proposal-id 18363 :visit-id "5C" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:19.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "5C" :obset-id "5C" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "5C" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2598 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) true 1 0 SNR = 30 in 24s, ETC 2367109 Brightest Pixel (single exposure) = 5.2 counts/s Count rate entire detector = 1,147 counts/s Goal: SNR=10 at NV doublet (1238.8A and 1242.8A, with typical flux ratio of 2:1). - Worst case uses the lowest-observed NV flux for WTTS, scaled to target distance. - Expected case uses mean observed NV flux for WTTS, scaled to target distance. Worst case SNR = 10 at 1238.8A (per resolution element) in 2560s, ETC 2367110 Expected SNR = 10 at 1238.8A (per resolution element) in 848s, ETC 2367111 1900s total exposure time gives expected SNR=15 at 1238.8A, ETC 2367112 Buffer time = 15,977 * 2/3 = 10651 Brightest Pixel (single exposure) (at 1335.75 A) ~ 0.012 counts/s (C II) 1787376681684 Timing link suitability includes constraints ([Group (5C 5S) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit7195094026137147359.xml UV ETC Template is a K0 WTTS LkCa 19 K1 (Tic-Visit :proposal-id 18363 :visit-id "5S" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:21.0" :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 377792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "5S" :obset-id "5S" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "5S" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2599 :al-overhead-at-end 116 :internal-dur-at-end 1289 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) true 1 0 SNR=150 with 0.07s, ETC 2367147 Saturates in 1s 1263s gives SNR = 6.7, ETC 2367150 BUFFER-TIME = 1853 * 4/5 = 1482 Saturation in 207s 18.7s exposure gives SNR = 100, run number 2367149. Total counts > 9000, so no need for E1 pseudoaperture. Exposure times give warning: Electrons per pixel due to background is less than the recommended threshold of 20 electrons to avoid poor charge transfer efficiency (CTE). We suggest you consider CTE mitigation strategies described in the STIS Instrument Handbook. Saturation in 99s 12s exposure gives SNR = 100, run number 2367148. Total counts > 9000, so no need for E1 pseudoaperture. 1787376683311 /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit9722531132409262380.xml Timing link suitability includes constraints ([Group (6C 6S) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. UV ETC Template is a K0 WTTS LkCa 19 K1 (Tic-Visit :proposal-id 18363 :visit-id "6C" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:23.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "6C" :obset-id "6C" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "6C" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2602 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2983 :pcs-gap 0 ) true 1 0 SNR = 30 in 21.5s, ETC 2367113 Brightest Pixel (single exposure) = 5.8 counts/s Count rate entire detector = 1,153 counts/s Goal: SNR=10 at NV doublet (1238.8A and 1242.8A, with typical flux ratio of 2:1). - Worst case uses the lowest-observed NV flux for WTTS, scaled to target distance. - Expected case uses mean observed NV flux for WTTS, scaled to target distance. Worst case SNR = 10 at 1238.8A (per resolution element) in 1953s, ETC 2367114 Expected SNR = 10 at 1238.8A (per resolution element) in 632s, ETC 2367115 1908s total exposure time gives expected SNR=17 at 1238.8A, ETC 2367116 Buffer time = 15,836 * 2/3 = 10557 Brightest Pixel (single exposure) (at 1335.75 A) ~ 0.012 counts/s (C II) 1787376685213 Timing link suitability includes constraints ([Group (6C 6S) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit16445311055695406579.xml UV ETC Template is a K0 WTTS LkCa 19 K1 (Tic-Visit :proposal-id 18363 :visit-id "6S" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:24.0" :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 377792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "6S" :obset-id "6S" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "6S" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2603 :al-overhead-at-end 116 :internal-dur-at-end 1289 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2983 :pcs-gap 0 ) true 1 0 SNR=150 with 0.06s, ETC 2367143 Saturates in 0.8s 1271s gives SNR = 7, ETC 2367146 BUFFER-TIME = 1808 * 4/5 = 1446 Saturation in 171s 16.4s exposure gives SNR = 100, run number 2367145. Total counts > 9000, so no need for E1 pseudoaperture. Exposure times give warning: Electrons per pixel due to background is less than the recommended threshold of 20 electrons to avoid poor charge transfer efficiency (CTE). We suggest you consider CTE mitigation strategies described in the STIS Instrument Handbook. Saturation in 85s 9.8s exposure gives SNR = 100, run number 2367144. Total counts > 9000, so no need for E1 pseudoaperture. 1787376686150 /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit6255066709740646695.xml Timing link suitability includes constraints ([Group (7C 7S) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. UV ETC Template is a K2 WTTS RXJ0438.6+1546 K2 (Tic-Visit :proposal-id 18363 :visit-id "7C" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:25.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "7C" :obset-id "7C" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "7C" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2612 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2992 :pcs-gap 0 ) true 1 0 SNR = 30 in 26.4s, ETC 2367151 Brightest Pixel (single exposure) = 4.7 counts/s Count rate entire detector = 1,142 counts/s Goal: SNR=10 at NV doublet (1238.8A and 1242.8A, with typical flux ratio of 2:1). - Worst case uses the lowest-observed NV flux for WTTS, scaled to target distance. - Expected case uses mean observed NV flux for WTTS, scaled to target distance. Worst case SNR = 10 at 1238.8A (per resolution element) in 3695s, ETC 2367152 Expected SNR = 10 at 1238.8A (per resolution element) in 1113s, ETC 2367153 Final choice: 1908s total exposure time gives SNR=13 at 1238.8A, ETC 2367154 Buffer time = 17068 * 2/3 = 11379 Brightest Pixel (single exposure) (at 1335.75 A) = 0.005 counts/s (C II), ETC 2367155 1787376687805 Timing link suitability includes constraints ([Group (7C 7S) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit8718115479456091438.xml UV ETC Template is a K2 WTTS RXJ0438.6+1546 K2 (Tic-Visit :proposal-id 18363 :visit-id "7S" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:27.0" :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 377792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "7S" :obset-id "7S" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "7S" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2612 :al-overhead-at-end 116 :internal-dur-at-end 1289 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2992 :pcs-gap 0 ) true 1 0 SNR=150 with 0.08s, ETC # 2367156 Saturates in 1.2s 1270s gives SNR = 8.6, ETC 2367158 BUFFER-TIME = 1753 * 4/5 = 1408 Saturation in 241s 23s exposure gives SNR = 100, run number 2367158. Total counts > 9000, so no need for E1 pseudoaperture. Exposure times give warning: Electrons per pixel due to background is less than the recommended threshold of 20 electrons to avoid poor charge transfer efficiency (CTE). We suggest you consider CTE mitigation strategies described in the STIS Instrument Handbook. Saturation in 118s 14s exposure gives SNR = 100, run number 2367157. Total counts > 9000, so no need for E1 pseudoaperture. 1787376689499 /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit4341780393299163187.xml Timing link suitability includes constraints ([Group (8C 8S) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. UV ETC Template is a K2 WTTS RXJ0438.6+1546 K2 (Tic-Visit :proposal-id 18363 :visit-id "8C" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:28.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "8C" :obset-id "8C" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "8C" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2612 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2992 :pcs-gap 0 ) true 1 0 SNR = 30 in 18s, ETC 2367160 Brightest Pixel (single exposure) = 6.9 counts/s Count rate entire detector = 1,166 counts/s Goal: SNR=10 at NV doublet (1238.8A and 1242.8A, with typical flux ratio of 2:1). - Worst case uses the lowest-observed NV flux for WTTS, scaled to target distance. - Expected case uses mean observed NV flux for WTTS, scaled to target distance. Worst case SNR = 10 at 1238.8A (per resolution element) in 4467s, ETC 2367161 Expected SNR = 10 at 1238.8A (per resolution element) in 1410s, ETC 2367162 Final choice: 1928s total exposure time gives SNR=11.7 at 1238.8A, ETC 2367163 Buffer time = 16878 * 2/3 = 11252 Brightest Pixel (single exposure) (at 1335.75 A) ~ 0.005 counts/s (C II) 1787376692129 Timing link suitability includes constraints ([Group (8C 8S) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit5126118617091278002.xml UV ETC Template is a K2 WTTS RXJ0438.6+1546 K2 (Tic-Visit :proposal-id 18363 :visit-id "8S" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:31.0" :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 377792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "8S" :obset-id "8S" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "8S" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2612 :al-overhead-at-end 116 :internal-dur-at-end 1289 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2992 :pcs-gap 0 ) true 1 0 SNR=150 with 0.05s, ETC 2367164 Saturates in 0.8s 1282s gives SNR = 10.8, ETC 2367167 BUFFER-TIME = 1543 * 4/5 = 1234 Saturation in 170s 16s exposure gives SNR = 100, run number 2367166. Total counts > 10927, so no need for E1 pseudoaperture. Exposure times give warning: Electrons per pixel due to background is less than the recommended threshold of 20 electrons to avoid poor charge transfer efficiency (CTE). We suggest you consider CTE mitigation strategies described in the STIS Instrument Handbook. Saturation in 81s 10s exposure gives SNR = 100, run number 2367165. Total counts > 10922, so no need for E1 pseudoaperture. 1787376693103 /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit1955480537775577616.xml Timing link suitability includes constraints ([Group (9C 9S) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. UV ETC Template is a K2 WTTS RXJ0438.6+1546 K3 (Tic-Visit :proposal-id 18363 :visit-id "9C" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:32.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "9C" :obset-id "9C" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "9C" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2620 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3001 :pcs-gap 0 ) true 1 0 SNR = 30 in 22.7s, ETC 2367170 Brightest Pixel (single exposure) = 5.5 counts/s Count rate entire detector = 1,150 counts/s Goal: SNR=10 at NV doublet (1238.8A and 1242.8A, with typical flux ratio of 2:1). - Worst case uses the lowest-observed NV flux for WTTS, scaled to target distance. - Expected case uses mean observed NV flux for WTTS, scaled to target distance. Worst case SNR = 10 at 1238.8A (per resolution element) in 3302s, ETC 2367171 Expected SNR = 10 at 1238.8A (per resolution element) in 1000s, ETC 2367172 1924s total exposure time gives SNR=13.9 at 1238.8A, ETC 2367173 Buffer time = 16995 * 2/3 = 11330 Brightest Pixel (single exposure) (at 1335.75 A) ~ 0.005 counts/s (C II) 1787376695057 Timing link suitability includes constraints ([Group (9C 9S) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit11685759626228695673.xml UV ETC Template is a K2 WTTS RXJ0438.6+1546 K3 (Tic-Visit :proposal-id 18363 :visit-id "9S" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:34.0" :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 377792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "9S" :obset-id "9S" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "9S" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2621 :al-overhead-at-end 116 :internal-dur-at-end 1289 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3001 :pcs-gap 0 ) true 1 0 SNR=150 with 0.07s, ETC 2367174 Saturates in 1s 1285s gives SNR = 9.5, ETC 2367177 BUFFER-TIME = 1670 * 4/5 = 1336 Saturation in 233s 20s exposure gives SNR = 100, run number 2367176. Total counts > 10000, so no need for E1 pseudoaperture. Exposure times give warning: Electrons per pixel due to background is less than the recommended threshold of 20 electrons to avoid poor charge transfer efficiency (CTE). We suggest you consider CTE mitigation strategies described in the STIS Instrument Handbook. Saturation in 100s 12.3s exposure gives SNR = 100, run number 2367175. Total counts > 10000, so no need for E1 pseudoaperture. 1787376696395 /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit11090291541194496997.xml Timing link suitability includes constraints ([Group (10 11) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. UV ETC Template is a K5 WTTS RECX1 K4 (Tic-Visit :proposal-id 18363 :visit-id "10" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:36.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "10" :obset-id "10" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "10" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2612 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2992 :pcs-gap 0 ) true 1 0 SNR = 30 in 3s, ETC 2367178 Brightest Pixel (single exposure) = 42 counts/s Count rate entire detector = 1,392 counts/s Goal: SNR=10 at NV doublet (1238.8A and 1242.8A, with typical flux ratio of 2:1). - Worst case uses the lowest-observed NV flux for WTTS, scaled to target distance. - Expected case uses mean observed NV flux for WTTS, scaled to target distance. Worst case SNR = 10 at 1238.8A (per resolution element) in 2129s, ETC 2367180 Expected SNR = 10 at 1238.8A (per resolution element) in 794s, ETC 2367181 1956s total exposure time gives SNR=15.7 at 1238.8A, ETC 2367182 Buffer time = 16343 * 2/3 = 10895 Brightest Pixel (single exposure) (at 1335.83 A) = 0.009 counts/s (C II), ETC 2367184 1787376698596 Timing link suitability includes constraints ([Group (10 11) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit10120771201389738147.xml UV ETC Template is a K5 WTTS RECX1 K4 (Tic-Visit :proposal-id 18363 :visit-id "11" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:38.0" :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 377792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "11" :obset-id "11" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "11" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2612 :al-overhead-at-end 116 :internal-dur-at-end 1289 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2992 :pcs-gap 0 ) true 1 0 SNR=150 with 0.1s, ETC 2367232 Saturates in 1.4s 1268s gives SNR = 6.3, ETC 2367241 BUFFER-TIME = 2,332 * 4/5 = 1866 Saturation in 331s 33s exposure gives SNR = 100, run number 2367239. Total counts > 10000, so no need for E1 pseudoaperture. Exposure times give warning: Electrons per pixel due to background is less than the recommended threshold of 20 electrons to avoid poor charge transfer efficiency (CTE). We suggest you consider CTE mitigation strategies described in the STIS Instrument Handbook. Saturation in 149s 19.3s exposure gives SNR = 100, run number 2367236. Total counts > 10000, so no need for E1 pseudoaperture. 1787376699489 /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit13347191690080391409.xml Timing link suitability includes constraints ([Group (12 13) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. UV ETC Template is a K5 WTTS RECX1 K5 (Tic-Visit :proposal-id 18363 :visit-id "12" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:39.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "12" :obset-id "12" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "12" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2612 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2992 :pcs-gap 0 ) true 1 0 SNR = 30 in 2.7s, ETC 2367244 Brightest Pixel (single exposure) = 45.6 counts/s Count rate entire detector = 1,420 counts/s Goal: SNR=10 at NV doublet (1238.8A and 1242.8A, with typical flux ratio of 2:1). - Worst case uses the lowest-observed NV flux for WTTS, scaled to target distance. - Expected case uses mean observed NV flux for WTTS, scaled to target distance. Worst case SNR = 10 at 1238.8A (per resolution element) in 1010s, ETC 2367246 Expected SNR = 10 at 1238.8A (per resolution element) in 331s, ETC 2367247 1956s total exposure time gives SNR=24 at 1238.8A, ETC 2367248 Buffer time = 16336 * 2/3 = 10891 Brightest Pixel (single exposure) (at 1335.83 A) = 0.009 counts/s (C II), ETC 2367250 1787376700923 Timing link suitability includes constraints ([Group (12 13) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit18053520424232470848.xml UV ETC Template is a K5 WTTS RECX1 K5 (Tic-Visit :proposal-id 18363 :visit-id "13" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:40.0" :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 377792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "13" :obset-id "13" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "13" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2612 :al-overhead-at-end 116 :internal-dur-at-end 1289 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2992 :pcs-gap 0 ) true 1 0 SNR=150 with 0.05s, ETC 2367253 Saturates in 0.8s 1270s gives SNR = 6.6, ETC 2367257 BUFFER-TIME = 2,353 * 4/5 = 1882 Saturation in 215s 24s exposure gives SNR = 100, run number 2367255. Total counts > 10000, so no need for E1 pseudoaperture. Exposure times give warning: Electrons per pixel due to background is less than the recommended threshold of 20 electrons to avoid poor charge transfer efficiency (CTE). We suggest you consider CTE mitigation strategies described in the STIS Instrument Handbook. Saturation in 70s 12.2s exposure gives SNR = 100, run number 2367254. Total counts > 10000, so no need for E1 pseudoaperture. 1787376701770 /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit5708726015639248053.xml Timing link suitability includes constraints ([Group (14 15) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. UV ETC Template is a K5 WTTS RECX1 K5.5 (Tic-Visit :proposal-id 18363 :visit-id "14" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:41.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "14" :obset-id "14" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "14" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2612 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2992 :pcs-gap 0 ) true 1 0 SNR = 30 in 8.1026s, ETC 2367340 Brightest Pixel (single exposure) = 15.432 counts/s Count rate entire detector = 1,203.487 counts/s 1928s total exposure time gives SNR=13.8 at 1238.8A, ETC 2367339 Buffer time = 17155 * 2/3 = 11437 Brightest Pixel (single exposure) (at 1335.83 A) ~ 0.009 counts/s (C II) 1787376703226 Timing link suitability includes constraints ([Group (14 15) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit14572950933485477378.xml UV ETC Template is a K5 WTTS RECX1 K5.5 (Tic-Visit :proposal-id 18363 :visit-id "15" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:42.0" :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 377792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "15" :obset-id "15" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "15" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2612 :al-overhead-at-end 116 :internal-dur-at-end 1289 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2992 :pcs-gap 0 ) true 1 0 SNR=150 with 0.1726s, ETC 2367341 Saturates in 2.48s 1250s gives SNR = 2.7 at 2200A, ETC 2367344. Will bin spectrum by factor of 3.4 to reach SNR=5. BUFFER-TIME = 2,438.51 * 4/5 = 1951 27.8988s exposure gives SNR = 60, ETC 2367343. Total counts 4,597.74, so not using E1 pseudoaperture. Saturation in 612.07s Exposure times give warning: Electrons per pixel due to background is less than the recommended threshold of 20 electrons to avoid poor charge transfer efficiency (CTE). We suggest you consider CTE mitigation strategies described in the STIS Instrument Handbook. Saturation in 258.86s 14.1026s exposure gives SNR = 60, run number 2367342. Total counts 4,586.33, so not using E1 pseudoaperture. 1787376704650 /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit12232943743453632635.xml Timing link suitability includes constraints ([Group (16 17) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. UV ETC Template is a K5 WTTS RECX1 K6 (Tic-Visit :proposal-id 18363 :visit-id "16" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:44.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "16" :obset-id "16" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "16" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2606 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2987 :pcs-gap 0 ) true 1 0 SNR = 30 in 8.5s, ETC 2367282 Brightest Pixel (single exposure) = 14.8 counts/s Count rate entire detector = 1,199 counts/s Goal: SNR=10 at NV doublet (1238.8A and 1242.8A, with typical flux ratio of 2:1). - Worst case uses the lowest-observed NV flux for WTTS, scaled to target distance. - Expected case uses mean observed NV flux for WTTS, scaled to target distance. Worst case SNR = 10 at 1238.8A (per resolution element) in 2559s, ETC 2367283 Expected SNR = 10 at 1238.8A (per resolution element) in 815s, ETC 2367285 1940s total exposure time gives SNR=15.4 at 1238.8A, ETC 2367286 Buffer time = 17075 * 2/3 = 11383 Brightest Pixel (single exposure) (at 1335.83 A) ~ 0.009 counts/s (C II) 1787376706313 Timing link suitability includes constraints ([Group (16 17) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit8549842466896329165.xml UV ETC Template is a K5 WTTS RECX1 K6 (Tic-Visit :proposal-id 18363 :visit-id "17" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:45.0" :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 377792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "17" :obset-id "17" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "17" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2607 :al-overhead-at-end 116 :internal-dur-at-end 1289 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2987 :pcs-gap 0 ) true 1 0 SNR=150 with 0.17s, ETC 2367287 Saturates in 2.5s 1257s gives SNR = 3.2, ETC 2367290. Will bin spectrum by factor of 2.4 to reach SNR=5. BUFFER-TIME = 2,433 * 4/5 = 1946 30s exposure gives SNR = 57, ETC 2367288. Total counts = 4187, so not using E1 pseudoaperture. Exposure times give warning: Electrons per pixel due to background is less than the recommended threshold of 20 electrons to avoid poor charge transfer efficiency (CTE). We suggest you consider CTE mitigation strategies described in the STIS Instrument Handbook. Saturation in 230s 16s exposure gives SNR = 58, run number 2367289. Total counts = 4367, so not using E1 pseudoaperture. 1787376707248 /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit17044361721911931977.xml Timing link suitability includes constraints ([Group (18 19) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. UV ETC Template is a K5 WTTS RECX1 K6 (Tic-Visit :proposal-id 18363 :visit-id "18" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:47.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "18" :obset-id "18" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "18" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2612 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2992 :pcs-gap 0 ) true 1 0 SNR = 30 in 8.3s, ETC 2367291 Brightest Pixel (single exposure) = 15 counts/s Count rate entire detector = 1,200 counts/s Goal: SNR=10 at NV doublet (1238.8A and 1242.8A, with typical flux ratio of 2:1). - Worst case uses the lowest-observed NV flux for WTTS, scaled to target distance. - Expected case uses mean observed NV flux for WTTS, scaled to target distance. Worst case SNR = 10 at 1238.8A (per resolution element) in 3183s, ETC 2367292 Expected SNR = 10 at 1238.8A (per resolution element) in 1033s, ETC 2367293 1944s total exposure time gives SNR=13.7 at 1238.8A, ETC 2367294 Buffer time = 17106 * 2/3 = 11404 Brightest Pixel (single exposure) (at 1335.83 A) ~ 0.009 counts/s (C II) 1787376709519 Timing link suitability includes constraints ([Group (18 19) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit13817700339013786201.xml UV ETC Template is a K5 WTTS RECX1 K6 (Tic-Visit :proposal-id 18363 :visit-id "19" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:48.0" :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 377792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "19" :obset-id "19" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "19" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2612 :al-overhead-at-end 116 :internal-dur-at-end 1289 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2992 :pcs-gap 0 ) true 1 0 SNR=150 with 0.17s, ETC 2367295 Saturates in 2.5s 1262s gives SNR = 3 at 2200A, ETC 2367298. Will bin spectrum by factor of 2.7 to reach SNR=5. BUFFER-TIME = 2,437 * 4/5 = 1950 30s exposure gives SNR = 60, ETC 2367296. Total counts = 4589, so not using E1 pseudoaperture. Exposure times give warning: Electrons per pixel due to background is less than the recommended threshold of 20 electrons to avoid poor charge transfer efficiency (CTE). We suggest you consider CTE mitigation strategies described in the STIS Instrument Handbook. Saturation in 230s 14.4s exposure gives SNR = 60, run number 2367297. Total counts = 4587, so not using E1 pseudoaperture. 1787376652662 /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit5126837986346195523.xml Timing link suitability includes constraints ([Group (20 21) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. UV ETC Template is a K5 WTTS RECX1 K6 (Tic-Visit :proposal-id 18363 :visit-id "20" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:30:52.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "20" :obset-id "20" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "20" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2612 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2992 :pcs-gap 0 ) true 1 0 SNR = 30 in 6.9s, ETC 2367299 Brightest Pixel (single exposure) = 18 counts/s Count rate entire detector = 1,222 counts/s Goal: SNR=10 at NV doublet (1238.8A and 1242.8A, with typical flux ratio of 2:1). - Worst case uses the lowest-observed NV flux for WTTS, scaled to target distance. - Expected case uses mean observed NV flux for WTTS, scaled to target distance. Worst case SNR = 10 at 1238.8A (per resolution element) in 2993s, ETC 2367300 Expected SNR = 10 at 1238.8A (per resolution element) in 1003s, ETC 2367301 1948s total exposure time gives SNR=13.9 at 1238.8A, ETC 2367302 Buffer time = 16982 * 2/3 = 11321 Brightest Pixel (single exposure) (at 1335.83 A) ~ 0.009 counts/s (C II) 1787376711843 Timing link suitability includes constraints ([Group (20 21) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit16104742677481724012.xml UV ETC Template is a K5 WTTS RECX1 K6 (Tic-Visit :proposal-id 18363 :visit-id "21" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:51.0" :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 377792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "21" :obset-id "21" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "21" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2612 :al-overhead-at-end 116 :internal-dur-at-end 1289 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2992 :pcs-gap 0 ) true 1 0 SNR=150 with 0.15s, ETC 2367303 Saturates in 2.2s 1268s gives SNR = 3.8 at 2200A, ETC 2367306. Will bin spectrum by factor of 1.7 to reach SNR=5. BUFFER-TIME = 2,423 * 4/5 = 1938 26s exposure gives SNR = 60, ETC 2367304. Total counts > 4589, so not using E1 pseudoaperture. Exposure times give warning: Electrons per pixel due to background is less than the recommended threshold of 20 electrons to avoid poor charge transfer efficiency (CTE). We suggest you consider CTE mitigation strategies described in the STIS Instrument Handbook. Saturation in 210s 13.9s exposure gives SNR = 60, run number 2367305. Total counts > 4580, so not using E1 pseudoaperture. 1787376712670 /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit13862026348564659181.xml Timing link suitability includes constraints ([Group (22 23) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. UV ETC Template is a K7 WTTS HBC 427 OPT ETC Template is a K7 WTTS SO879 ([HHM2007] 879) K7 (Tic-Visit :proposal-id 18363 :visit-id "22" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:52.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "22" :obset-id "22" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "22" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2596 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2976 :pcs-gap 0 ) true 1 0 SNR = 30 in 5.9785s, ETC 2367345 Brightest Pixel (single exposure) = 20.910 counts/s Count rate entire detector = 1,242.951 counts/s 1928s total exposure time gives SNR=12.5 at 1238.8A, ETC 2367346 Buffer time = 17470 * 2/3 = 11647 Brightest Pixel (single exposure) (at 1238.81 A) = 0.002 counts/s (N V), ETC 2367312 1787376714420 Timing link suitability includes constraints ([Group (22 23) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit12167544484382768365.xml UV ETC Template is a K7 WTTS HBC 427 OPT ETC Template is a K7 WTTS SO879 ([HHM2007] 879) K7 (Tic-Visit :proposal-id 18363 :visit-id "23" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:53.0" :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 377792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "23" :obset-id "23" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "23" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2596 :al-overhead-at-end 116 :internal-dur-at-end 1289 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2976 :pcs-gap 0 ) true 1 0 SNR=150 with 0.0993s, ETC 2367347 Saturates in 1.50s 1253s gives SNR = 2.1 at 2300A, ETC 2367444. Will bin spectrum by factor of 5.5 to reach SNR=5. BUFFER-TIME = 2,383.13 * 4/5 = 1907 27s exposure gives SNR = 60, ETC 2367349. Total counts 4,596.68, so not using E1 pseudoaperture. Saturation in 501s Exposure times give warning: Electrons per pixel due to background is less than the recommended threshold of 20 electrons to avoid poor charge transfer efficiency (CTE). We suggest you consider CTE mitigation strategies described in the STIS Instrument Handbook. Saturation in 120s 12s exposure gives SNR = 60, run number 2367348. Total counts 4,584.52, so not using E1 pseudoaperture. 1787376715389 /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit17368813676809456190.xml Timing link suitability includes constraints ([Group (24 25) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. UV ETC Template is a K7 WTTS HBC 427 K7 (Tic-Visit :proposal-id 18363 :visit-id "24" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:55.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "24" :obset-id "24" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "24" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2596 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2987 :pcs-gap 0 ) true 1 0 SNR = 30 in 2.9s, ETC 2367351 Brightest Pixel (single exposure) = 42.6 counts/s Count rate entire detector = 1,399 counts/s 1928s total exposure time gives SNR=27.4 at 1238.8A, ETC 2367353 Buffer time = 17347 * 2/3 = 11565 Brightest Pixel (single exposure) (at 1238.81 A) ~ 0.002 counts/s (N V) 1787376717113 Timing link suitability includes constraints ([Group (24 25) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit2343278725581911065.xml UV ETC Template is a K7 WTTS HBC 427 K7 (Tic-Visit :proposal-id 18363 :visit-id "25" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:56.0" :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 377792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "25" :obset-id "25" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "25" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2607 :al-overhead-at-end 116 :internal-dur-at-end 1289 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2987 :pcs-gap 0 ) true 1 0 SNR=150 with 0.0613s, ETC 2367352 Saturates in 0.91s 1271s gives SNR = 4.8 at 2300A, ETC 2367445. Will bin spectrum by factor of 1.1 to reach SNR=5. BUFFER-TIME = 2,264 * 4/5 = 1811 14s exposure gives SNR = 60, ETC 2367354. Total counts 4,586.01, so not using E1 pseudoaperture. Saturation in 283s Exposure times give warning: Electrons per pixel due to background is less than the recommended threshold of 20 electrons to avoid poor charge transfer efficiency (CTE). We suggest you consider CTE mitigation strategies described in the STIS Instrument Handbook. Saturation in 71s 7s exposure gives SNR = 60, run number 2367355. Total counts 4,580.13, so not using E1 pseudoaperture. 1787376718071 /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit10026674004359258972.xml Timing link suitability includes constraints ([Group (26 27) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. UV ETC Template is a K7 WTTS HBC 427 OPT ETC Template is a K7 WTTS SO879 ([HHM2007] 879) K7 (Tic-Visit :proposal-id 18363 :visit-id "26" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:31:57.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "26" :obset-id "26" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "26" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2598 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) true 1 0 SNR = 30 in 2.9s, ETC 2367307 Brightest Pixel (single exposure) = 42.6 counts/s Count rate entire detector = 1,399 counts/s Goal: SNR=10 at NV doublet (1238.8A and 1242.8A, with typical flux ratio of 2:1). - Worst case uses the lowest-observed NV flux for WTTS, scaled to target distance. - Expected case uses mean observed NV flux for WTTS, scaled to target distance. Worst case SNR = 10 at 1238.8A (per resolution element) in 3198s, ETC 2367322 Expected SNR = 10 at 1238.8A (per resolution element) in 987s, ETC 2367323 1940s total exposure time gives SNR=14 at 1238.8A, ETC 2367324 Buffer time = 16993 * 2/3 = 11329 Brightest Pixel (single exposure) (at 1238.81 A) = 0.002 counts/s (N V), ETC 2367312 1787376721623 Timing link suitability includes constraints ([Group (26 27) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit9942247644718047677.xml UV ETC Template is a K7 WTTS HBC 427 OPT ETC Template is a K7 WTTS SO879 ([HHM2007] 879) K7 (Tic-Visit :proposal-id 18363 :visit-id "27" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:32:00.0" :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 534336 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "27" :obset-id "27" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "27" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2599 :al-overhead-at-end 0 :internal-dur-at-end 364 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) (Tic-Orbit :proposal-id 18363 :visit-id "27" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2599 :al-overhead-at-end 116 :internal-dur-at-end 1289 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) true 2 0 SNR=150 with 0.1s, ETC 2367314 Saturates in 1.6s 3782s gives SNR = 3.0 at 2300A, ETC 2367487. Will bin spectrum by factor of 2.9 to reach SNR=5. BUFFER-TIME = 2,395.98 * 4/5 = 1917 3782s gives SNR = 3.0 at 2300A, ETC 2367487. Will bin spectrum by factor of 2.9 to reach SNR=5. BUFFER-TIME = 2,395.98 * 4/5 = 1917 28s exposure gives SNR = 60, ETC 2367361. Total counts 4,597.83, so not using E1 pseudoaperture. Exposure times give warning: Electrons per pixel due to background is less than the recommended threshold of 20 electrons to avoid poor charge transfer efficiency (CTE). We suggest you consider CTE mitigation strategies described in the STIS Instrument Handbook. Saturation in 134s 12s exposure gives SNR = 60, run number 2367360. Total counts 4,584.62, so not using E1 pseudoaperture. 1787378663349 /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit8831465250168287818.xml Timing link suitability includes constraints ([Group (28 29) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. UV ETC Template is a K7 WTTS HBC 427 OPT ETC Template is a K7 WTTS TWA 6 K7.5 (Tic-Visit :proposal-id 18363 :visit-id "28" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 23:04:23.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "28" :obset-id "28" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "28" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2612 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2992 :pcs-gap 0 ) true 1 0 SNR = 30 in 12.7064s, ETC 2367364 Brightest Pixel (single exposure) = 9.846 counts/s Count rate entire detector = 1,163.242 counts/s 1928s total exposure time gives SNR=14.3 at 1238.8A, ETC 2367363 Buffer time = 17472 * 2/3 = 11648 Brightest Pixel (single exposure) (at 1238.81 A) ~ 0.002 counts/s (N V) 1787376724920 Timing link suitability includes constraints ([Group (28 29) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit7976528486598927090.xml UV ETC Template is a K7 WTTS HBC 427 OPT ETC Template is a K7 WTTS TWA 6 K7.5 (Tic-Visit :proposal-id 18363 :visit-id "29" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:32:04.0" :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 534336 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "29" :obset-id "29" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "29" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2612 :al-overhead-at-end 0 :internal-dur-at-end 364 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2992 :pcs-gap 0 ) (Tic-Orbit :proposal-id 18363 :visit-id "29" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2612 :al-overhead-at-end 116 :internal-dur-at-end 1289 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2992 :pcs-gap 0 ) true 2 0 SNR=150 with 0.2651s, ETC 2367365 Saturates in 3.96s 3782s gives SNR = 2.7 at 2300A, ETC 2367488. Will bin spectrum by factor of 3.4 to reach SNR=5. BUFFER-TIME = 2,426.65 * 4/5 = 1941 3782s gives SNR = 2.7 at 2300A, ETC 2367488. Will bin spectrum by factor of 3.4 to reach SNR=5. BUFFER-TIME = 2,426.65 * 4/5 = 1941 60s exposure gives SNR = 60, ETC 2367367. Total counts 4,624.54, so not using E1 pseudoaperture. Saturation in 308s 29s exposure gives SNR = 60, run number 2367366. Total counts 4,598.99, so not using E1 pseudoaperture. 1787376726145 /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit7859154758264006985.xml Timing link suitability includes constraints ([Group (30 31) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. UV ETC Template is an M1 WTTS TWA 7 M0 (Tic-Visit :proposal-id 18363 :visit-id "30" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:32:05.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "30" :obset-id "30" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "30" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2612 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2992 :pcs-gap 0 ) true 1 0 SNR = 30 in 35.0775s, ETC 2367459 [MIRRORB] Brightest Pixel (single exposure) = 3.576 counts/s Count rate entire detector = 1,129.883 counts/s 1928s total exposure time gives SNR=33.9 at 1238.8A, ETC 2367373 Buffer time = 16571 * 2/3 = 11047 Brightest Pixel (single exposure) (at 1238.81 A) ~ 0.002 counts/s (N V) 1787376729007 Timing link suitability includes constraints ([Group (30 31) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit2141561448975033350.xml UV ETC Template is an M1 WTTS TWA 7 M0 (Tic-Visit :proposal-id 18363 :visit-id "31" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:32:08.0" :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 377792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "31" :obset-id "31" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "31" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2612 :al-overhead-at-end 116 :internal-dur-at-end 1289 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2992 :pcs-gap 0 ) true 1 0 SNR=150 with 0.0440s, ETC 2367375 Saturates in 0.66s 1265s gives SNR = 11.5 at 2200A, ETC 2367378. Exceeds SNR=5 goal; no binning required. BUFFER-TIME = 1,884.77 * 4/5 = 1508 22s exposure gives SNR = 60, ETC 2367377. Total counts 4,592.50, so not using E1 pseudoaperture. Saturation in 195s Exposure times give warning: Electrons per pixel due to background is less than the recommended threshold of 20 electrons to avoid poor charge transfer efficiency (CTE). Saturation in 50s 5s exposure gives SNR = 60, run number 2367376. Total counts 4,578.53, so not using E1 pseudoaperture. 1787376729989 /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit5404979966020747633.xml Timing link suitability includes constraints ([Group (32 33) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. UV ETC Template is an M1 WTTS TWA 7 M0.5 (Tic-Visit :proposal-id 18363 :visit-id "32" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:32:09.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 1 :saa-model "31" :si-bright-earth-limb-angle 20.0 :data-volume 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "32" :obset-id "32" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "32" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2630 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3011 :pcs-gap 0 ) true 1 0 SNR = 30 in 3.2733s, ETC 2367379 Brightest Pixel (single exposure) = 38.179 counts/s Count rate entire detector = 1,367.365 counts/s 1928s total exposure time gives SNR=19.9 at 1238.8A, ETC 2367380 Buffer time = 16935 * 2/3 = 11290 Brightest Pixel (single exposure) (at 1238.81 A) ~ 0.002 counts/s (N V) 1787376731788 Timing link suitability includes constraints ([Group (32 33) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit16897277356272249869.xml UV ETC Template is an M1 WTTS TWA 7 M0.5 (Tic-Visit :proposal-id 18363 :visit-id "33" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:32:11.0" :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 377792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "33" :obset-id "33" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "33" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2631 :al-overhead-at-end 116 :internal-dur-at-end 1289 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3011 :pcs-gap 0 ) true 1 0 SNR=150 with 0.1280s, ETC 2367381 Saturates in 1.97s 1216s gives SNR = 9.2 at 2200A, ETC 2367384. Exceeds SNR=5 goal; no binning required. BUFFER-TIME = 2,135.22 * 4/5 = 1708 56s exposure gives SNR = 60, ETC 2367383. Total counts 4,621.00, so not using E1 pseudoaperture. Saturation in 712s Exposure times give warning: Electrons per pixel due to background is less than the recommended threshold of 20 electrons to avoid poor charge transfer efficiency (CTE). Saturation in 129s 19s exposure gives SNR = 60, run number 2367382. Total counts 4,590.67, so not using E1 pseudoaperture.. 1787376733664 The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit10128591210616907698.xml UV ETC Template is an M1 WTTS TWA 7 M1+M1 Orient contraints will enable simultaneous observation of both components with 52x2 slit. (Tic-Visit :proposal-id 18363 :visit-id "34" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:32:13.0" :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 377792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "34" :obset-id "34" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "34" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2607 :al-overhead-at-end 116 :internal-dur-at-end 1289 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2987 :pcs-gap 0 ) true 1 0 Coordinates set to acquire TWA 13 A. TWA 13 A: SNR=150 with 0.0479s, ETC 2367388. Saturates in 0.75s TWA 13 B: SNR=150 with 0.0736s, ETC 2367395. Saturates in 1.14s TWA 13 A: 1264s gives SNR = 16.4 at 2200A, ETC 2367390. BUFFER-TIME = 1,719.52 * 4/5 = 1376 TWA 13 B: 1237s gives SNR = 7.8 at 2200A, ETC 2367396. BUFFER-TIME = 2,139.61 * 4/5 = 1712 TWA 13 A: 20s exposure gives SNR = 60, ETC 2367387. Total counts 4,591.43, so not using E1 pseudoaperture. Saturation in 264s. TWA 13 B: 44s exposure gives SNR = 60, ETC 2367393. Total counts 4,611.19, so not using E1 pseudoaperture. Saturation in 399s. TWA 13 A: 7s exposure gives SNR = 60, run number 2367389. Total counts 4,580.59, so not using E1 pseudoaperture. Saturation in 44s. TWA 13 B: 11s exposure gives SNR = 60, run number 2367392. Total counts 4,583.48, so not using E1 pseudoaperture. Saturation in 98s. 1787376735155 /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit3587547264187063680.xml Timing link suitability includes constraints ([Group (35 36) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. UV ETC Template is an M3 WTTS RECX 6 M3 (Tic-Visit :proposal-id 18363 :visit-id "35" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:32:14.0" :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 69792 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "35" :obset-id "35" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "35" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2772 :al-overhead-at-end 0 :internal-dur-at-end 38 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3152 :pcs-gap 0 ) (Tic-Orbit :proposal-id 18363 :visit-id "35" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2772 :al-overhead-at-end 0 :internal-dur-at-end 357 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3152 :pcs-gap 0 ) true 2 0 SNR = 30 in 17.8716s, ETC 2367403 Brightest Pixel (single exposure) = 7.005 counts/s Count rate entire detector = 1,142.771 counts/s 4889s total exposure time (2 COS orbits, 4 FP-POS) gives SNR=27.8 at 1238.8A, ETC 2367464 Buffer time = 17323 * 2/3 = 11549 4889s total exposure time (2 COS orbits, 4 FP-POS) gives SNR=27.8 at 1238.8A, ETC 2367464 Buffer time = 17323 * 2/3 = 11549 4889s total exposure time (2 COS orbits, 4 FP-POS) gives SNR=27.8 at 1238.8A, ETC 2367464 Buffer time = 17323 * 2/3 = 11549 4889s total exposure time (2 COS orbits, 4 FP-POS) gives SNR=27.8 at 1238.8A, ETC 2367464 Buffer time = 17323 * 2/3 = 11549 1787376738118 Timing link suitability includes constraints ([Group (35 36) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit12084645562524988101.xml UV ETC Template is an M3 WTTS RECX 6 M3 (Tic-Visit :proposal-id 18363 :visit-id "36" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:32:16.0" :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 690944 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "36" :obset-id "36" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "36" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2772 :al-overhead-at-end 0 :internal-dur-at-end 364 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3152 :pcs-gap 0 ) (Tic-Orbit :proposal-id 18363 :visit-id "36" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2772 :al-overhead-at-end 0 :internal-dur-at-end 364 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3152 :pcs-gap 0 ) (Tic-Orbit :proposal-id 18363 :visit-id "36" :orbit-number 3 :pcs-time 380 :si-vis-utilization 2772 :al-overhead-at-end 116 :internal-dur-at-end 1192 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3152 :pcs-gap 0 ) true 3 0 SNR=150 with 0.4104s, ETC 2367405 Saturates in 6.80s 6300s gives SNR = 4.9 at 2200A, ETC 2367463. Will bin spectrum by factor of 1.1 to reach SNR=5. BUFFER-TIME = 2,412.41 * 4/5 = 1930 6300s gives SNR = 4.9 at 2200A, ETC 2367463. Will bin spectrum by factor of 1.1 to reach SNR=5. BUFFER-TIME = 2,412.41 * 4/5 = 1930 6300s gives SNR = 4.9 at 2200A, ETC 2367463. Will bin spectrum by factor of 1.1 to reach SNR=5. BUFFER-TIME = 2,412.41 * 4/5 = 1930 135s exposure gives SNR = 40, ETC 2367472. Total counts 2,520.48, so using E1 pseudoaperture. 62s exposure gives SNR = 40, ETC 2367471. Total counts 2,466.18, so using E1 pseudoaperture. 1787376739225 /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit14089189890317080336.xml Timing link suitability includes constraints ([Group (37 38 39) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. UV ETC Template is an M3 WTTS RECX 6 M3 (Tic-Visit :proposal-id 18363 :visit-id "37" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:32:18.0" :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 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "37" :obset-id "37" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "37" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2631 :al-overhead-at-end 0 :internal-dur-at-end 38 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3011 :pcs-gap 0 ) (Tic-Orbit :proposal-id 18363 :visit-id "37" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2631 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3011 :pcs-gap 0 ) true 2 0 SNR = 30 in 17.3137s, ETC 2367415 Brightest Pixel (single exposure) = 7.230 counts/s Count rate entire detector = 1,144.394 counts/s 4889s total exposure time (2 COS orbits, 4 FP-POS) gives SNR=25.0 at 1238.8A, ETC 2367466 Buffer time = 17321 * 2/3 = 11547 4889s total exposure time (2 COS orbits, 4 FP-POS) gives SNR=25.0 at 1238.8A, ETC 2367466 Buffer time = 17321 * 2/3 = 11547 4889s total exposure time (2 COS orbits, 4 FP-POS) gives SNR=25.0 at 1238.8A, ETC 2367466 Buffer time = 17321 * 2/3 = 11547 4889s total exposure time (2 COS orbits, 4 FP-POS) gives SNR=25.0 at 1238.8A, ETC 2367466 Buffer time = 17321 * 2/3 = 11547 1787376740624 /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit6107118203251834603.xml Timing link suitability includes constraints ([Group (37 38 39) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. UV ETC Template is an M3 WTTS RECX 6 M3.5 (Tic-Visit :proposal-id 18363 :visit-id "38" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:32:20.0" :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 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "38" :obset-id "38" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "38" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2631 :al-overhead-at-end 0 :internal-dur-at-end 38 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3011 :pcs-gap 0 ) (Tic-Orbit :proposal-id 18363 :visit-id "38" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2631 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3011 :pcs-gap 0 ) true 2 0 SNR = 30 in 17.3137s, ETC 2367415 Brightest Pixel (single exposure) = 7.230 counts/s Count rate entire detector = 1,144.394 counts/s 4889s total exposure time (2 COS orbits, 4 FP-POS) gives SNR=25.0 at 1238.8A, ETC 2367466 Buffer time = 17321 * 2/3 = 11547 4889s total exposure time (2 COS orbits, 4 FP-POS) gives SNR=25.0 at 1238.8A, ETC 2367466 Buffer time = 17321 * 2/3 = 11547 4889s total exposure time (2 COS orbits, 4 FP-POS) gives SNR=25.0 at 1238.8A, ETC 2367466 Buffer time = 17321 * 2/3 = 11547 4889s total exposure time (2 COS orbits, 4 FP-POS) gives SNR=25.0 at 1238.8A, ETC 2367466 Buffer time = 17321 * 2/3 = 11547 1787376744442 Timing link suitability includes constraints ([Group (37 38 39) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit16127167457501160432.xml ***PROBLEM: NO ORIENT AVAILABILITY IN ROLL REPORT*** UV ETC Template is an M3 WTTS RECX 6 M3+M3.5 (Tic-Visit :proposal-id 18363 :visit-id "39" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:32:22.0" :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 690896 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "39" :obset-id "39" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "39" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2631 :al-overhead-at-end 0 :internal-dur-at-end 364 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3011 :pcs-gap 0 ) (Tic-Orbit :proposal-id 18363 :visit-id "39" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2631 :al-overhead-at-end 0 :internal-dur-at-end 364 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 3011 :pcs-gap 0 ) (Tic-Orbit :proposal-id 18363 :visit-id "39" :orbit-number 3 :pcs-time 380 :si-vis-utilization 2631 :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 3011 :pcs-gap 0 ) true 3 0 Coordinates set to acquire TWA 15 A. TWA 15 A: SNR=150 with 0.5066s, ETC 2367417. Saturates in 8.33s TWA 15 B: SNR=150 with 0.4524s, ETC 2367412. Saturates in 7.48s TWA 15 A: 6245s gives SNR = 5.1 at 2200A, ETC 2367482. Exceeds SNR=5 goal; no binning required. BUFFER-TIME = 2,408.84 * 4/5 = 1927 TWA 15 B: 6245s gives SNR = 4.0 at 2200A, ETC 2367483. Will bin spectrum by factor of 1.6 to reach SNR=5. BUFFER-TIME = 2,426.54 * 4/5 = 1941 TWA 15 A: 6245s gives SNR = 5.1 at 2200A, ETC 2367482. Exceeds SNR=5 goal; no binning required. BUFFER-TIME = 2,408.84 * 4/5 = 1927 TWA 15 B: 6245s gives SNR = 4.0 at 2200A, ETC 2367483. Will bin spectrum by factor of 1.6 to reach SNR=5. BUFFER-TIME = 2,426.54 * 4/5 = 1941 TWA 15 A: 6245s gives SNR = 5.1 at 2200A, ETC 2367482. Exceeds SNR=5 goal; no binning required. BUFFER-TIME = 2,408.84 * 4/5 = 1927 TWA 15 B: 6245s gives SNR = 4.0 at 2200A, ETC 2367483. Will bin spectrum by factor of 1.6 to reach SNR=5. BUFFER-TIME = 2,426.54 * 4/5 = 1941 TWA 15 A: 146s exposure gives SNR = 40, ETC 2367476. Total counts 2,529.33, so using E1 pseudoaperture. TWA 15 B: 132s exposure gives SNR = 40, ETC 2367474. Total counts 2,518.52, so using E1 pseudoaperture. TWA 15 A: 60s exposure gives SNR = 40, ETC 2367475. Total counts 2,464.49, so using E1 pseudoaperture. TWA 15 B: 55s exposure gives SNR = 40, ETC 2367473. Total counts 2,460.78, so using E1 pseudoaperture. 1787376745922 /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit13223927573639797026.xml Timing link suitability includes constraints ([Group (40 41) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. UV ETC Template is an M3 WTTS RECX 6 M4 (Tic-Visit :proposal-id 18363 :visit-id "40" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:32:25.0" :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 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "40" :obset-id "40" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "40" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2603 :al-overhead-at-end 0 :internal-dur-at-end 38 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2983 :pcs-gap 0 ) (Tic-Orbit :proposal-id 18363 :visit-id "40" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2603 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2983 :pcs-gap 0 ) true 2 0 SNR = 30 in 22.9107s, ETC 2367421 Brightest Pixel (single exposure) = 5.468 counts/s Count rate entire detector = 1,131.695 counts/s 4889s total exposure time (2 COS orbits, 4 FP-POS) gives SNR=22.1 at 1238.8A, ETC 2367467 Buffer time = 17369 * 2/3 = 11579 4889s total exposure time (2 COS orbits, 4 FP-POS) gives SNR=22.1 at 1238.8A, ETC 2367467 Buffer time = 17369 * 2/3 = 11579 4889s total exposure time (2 COS orbits, 4 FP-POS) gives SNR=22.1 at 1238.8A, ETC 2367467 Buffer time = 17369 * 2/3 = 11579 4889s total exposure time (2 COS orbits, 4 FP-POS) gives SNR=22.1 at 1238.8A, ETC 2367467 Buffer time = 17369 * 2/3 = 11579 1787376749566 Timing link suitability includes constraints ([Group (40 41) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit18388905732120738561.xml UV ETC Template is an M3 WTTS RECX 6 M4 (Tic-Visit :proposal-id 18363 :visit-id "41" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:32:28.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 4 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 847472 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "41" :obset-id "41" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "41" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2603 :al-overhead-at-end 0 :internal-dur-at-end 364 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2983 :pcs-gap 0 ) (Tic-Orbit :proposal-id 18363 :visit-id "41" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2603 :al-overhead-at-end 0 :internal-dur-at-end 364 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2983 :pcs-gap 0 ) (Tic-Orbit :proposal-id 18363 :visit-id "41" :orbit-number 3 :pcs-time 380 :si-vis-utilization 2603 :al-overhead-at-end 0 :internal-dur-at-end 364 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2983 :pcs-gap 0 ) (Tic-Orbit :proposal-id 18363 :visit-id "41" :orbit-number 4 :pcs-time 380 :si-vis-utilization 2603 :al-overhead-at-end 116 :internal-dur-at-end 1192 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2983 :pcs-gap 0 ) true 4 0 SNR=150 with 0.4671s, ETC 2367436 Saturates in 8.06s 8590s gives SNR = 4.7 at 2200A, ETC 2367485. Will bin spectrum by factor of 1.2 to reach SNR=5. BUFFER-TIME = 2,426.65 * 4/5 = 1941 8590s gives SNR = 4.7 at 2200A, ETC 2367485. Will bin spectrum by factor of 1.2 to reach SNR=5. BUFFER-TIME = 2,426.65 * 4/5 = 1941 8590s gives SNR = 4.7 at 2200A, ETC 2367485. Will bin spectrum by factor of 1.2 to reach SNR=5. BUFFER-TIME = 2,426.65 * 4/5 = 1941 8590s gives SNR = 4.7 at 2200A, ETC 2367485. Will bin spectrum by factor of 1.2 to reach SNR=5. BUFFER-TIME = 2,426.65 * 4/5 = 1941 187s exposure gives SNR = 40, ETC 2367479. Total counts 2,560.06, so using E1 pseudoaperture. 80s exposure gives SNR = 40, ETC 2367477. Total counts 2,479.56, so using E1 pseudoaperture. 1787376751411 /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit1537653347595337911.xml Timing link suitability includes constraints ([Group (42 43) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. UV ETC Template is an M3 WTTS RECX 6 M4 (Tic-Visit :proposal-id 18363 :visit-id "42" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:32:30.0" :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 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "42" :obset-id "42" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "42" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2612 :al-overhead-at-end 0 :internal-dur-at-end 38 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2992 :pcs-gap 0 ) (Tic-Orbit :proposal-id 18363 :visit-id "42" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2612 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2992 :pcs-gap 0 ) true 2 0 SNR = 30 in 14.178s, ETC 2367427 Brightest Pixel (single exposure) = 8.826 counts/s Count rate entire detector = 1,155.890 counts/s 4889s total exposure time (2 COS orbits, 4 FP-POS) gives SNR=18.1 at 1238.8A, ETC 2367468 Buffer time = 17300 * 2/3 = 11533 4889s total exposure time (2 COS orbits, 4 FP-POS) gives SNR=18.1 at 1238.8A, ETC 2367468 Buffer time = 17300 * 2/3 = 11533 4889s total exposure time (2 COS orbits, 4 FP-POS) gives SNR=18.1 at 1238.8A, ETC 2367468 Buffer time = 17300 * 2/3 = 11533 4889s total exposure time (2 COS orbits, 4 FP-POS) gives SNR=18.1 at 1238.8A, ETC 2367468 Buffer time = 17300 * 2/3 = 11533 1787376755910 Timing link suitability includes constraints ([Group (42 43) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit11670465830408172599.xml UV ETC Template is an M3 WTTS RECX 6 M4 (Tic-Visit :proposal-id 18363 :visit-id "43" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:32:34.0" :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 690912 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "43" :obset-id "43" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "43" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2612 :al-overhead-at-end 0 :internal-dur-at-end 364 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2992 :pcs-gap 0 ) (Tic-Orbit :proposal-id 18363 :visit-id "43" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2612 :al-overhead-at-end 0 :internal-dur-at-end 364 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2992 :pcs-gap 0 ) (Tic-Orbit :proposal-id 18363 :visit-id "43" :orbit-number 3 :pcs-time 380 :si-vis-utilization 2612 :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 2992 :pcs-gap 0 ) true 3 0 SNR=150 with 0.2591s, ETC 2367429 Saturates in 4.47s 6300s gives SNR = 5.9 at 2200A, ETC 2367486. Exceeds SNR=5 goal; no binning required. BUFFER-TIME = 2,394.90 * 4/5 = 1916 6300s gives SNR = 5.9 at 2200A, ETC 2367486. Exceeds SNR=5 goal; no binning required. BUFFER-TIME = 2,394.90 * 4/5 = 1916 6300s gives SNR = 5.9 at 2200A, ETC 2367486. Exceeds SNR=5 goal; no binning required. BUFFER-TIME = 2,394.90 * 4/5 = 1916 115s exposure gives SNR = 40, ETC 2367470. Total counts 2,505.91, so using E1 pseudoaperture. 49s exposure gives SNR = 40, ETC 2367478. Total counts 2,456.43, so using E1 pseudoaperture. 1787376757578 /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit537042243583803446.xml Timing link suitability includes constraints ([Group (44 45) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. UV ETC Template is an M3 WTTS RECX 6 M5 (Tic-Visit :proposal-id 18363 :visit-id "44" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:32:37.0" :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 52416 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "44" :obset-id "44" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "44" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2599 :al-overhead-at-end 0 :internal-dur-at-end 38 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) (Tic-Orbit :proposal-id 18363 :visit-id "44" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2599 :al-overhead-at-end 0 :internal-dur-at-end 347 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) true 2 0 SNR = 30 in 25.5957s, ETC 2367433 Brightest Pixel (single exposure) = 4.896 counts/s Count rate entire detector = 1,127.574 counts/s 4889s total exposure time (2 COS orbits, 4 FP-POS) gives SNR=17.9 at 1238.8A, ETC 2367469 Buffer time = 17389 * 2/3 = 11593 4889s total exposure time (2 COS orbits, 4 FP-POS) gives SNR=17.9 at 1238.8A, ETC 2367469 Buffer time = 17389 * 2/3 = 11593 4889s total exposure time (2 COS orbits, 4 FP-POS) gives SNR=17.9 at 1238.8A, ETC 2367469 Buffer time = 17389 * 2/3 = 11593 4889s total exposure time (2 COS orbits, 4 FP-POS) gives SNR=17.9 at 1238.8A, ETC 2367469 Buffer time = 17389 * 2/3 = 11593 1787376761351 Timing link suitability includes constraints ([Group (44 45) Within 1.0 days]) The scheduling data was generated by CASM 34.2. CASM was run in Phase II mode. /private/var/folders/bh/068qmq2s3k99d561rdfgl5fr0000gn/T/OPVisit11612747157858685694.xml UV ETC Template is an M3 WTTS RECX 6 M5 (Tic-Visit :proposal-id 18363 :visit-id "45" :proposal-version -1 :trans-version "20260618" :date "21-Aug-2026 22:32:40.0" :trans-errors '(:WARNINGS 0 :ERRORS 0 :HEALTH-AND-SAFETY 0 :FATAL-ERRORS 0 :CONTINUABLE-FATALS 0) :number-of-orbits 4 :saa-model "24" :si-bright-earth-limb-angle 20.0 :data-volume 847472 :tdrss-contact-duration 0 :coron NIL ) (Tic-Obset :proposal-id 18363 :visit-id "45" :obset-id "45" :pcs-mode "FGS" ) (Tic-Orbit :proposal-id 18363 :visit-id "45" :orbit-number 1 :pcs-time 380 :si-vis-utilization 2599 :al-overhead-at-end 0 :internal-dur-at-end 364 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) (Tic-Orbit :proposal-id 18363 :visit-id "45" :orbit-number 2 :pcs-time 380 :si-vis-utilization 2599 :al-overhead-at-end 0 :internal-dur-at-end 364 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) (Tic-Orbit :proposal-id 18363 :visit-id "45" :orbit-number 3 :pcs-time 380 :si-vis-utilization 2599 :al-overhead-at-end 0 :internal-dur-at-end 364 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) (Tic-Orbit :proposal-id 18363 :visit-id "45" :orbit-number 4 :pcs-time 380 :si-vis-utilization 2599 :al-overhead-at-end 116 :internal-dur-at-end 1192 :dark-offset NIL :dark-utilization 0 :max-dark-utilization 1920 :low-sky "N" :pcs-visibility 2979 :pcs-gap 0 ) true 4 0 SNR=150 with 0.4671s, ETC 2367436 Saturates in 8.06s 8574s gives SNR = 4.2 at 2200A, ETC 2367484. Will bin spectrum by factor of 1.4 to reach SNR=5. BUFFER-TIME = 2,432.14 * 4/5 = 1946 8574s gives SNR = 4.2 at 2200A, ETC 2367484. Will bin spectrum by factor of 1.4 to reach SNR=5. BUFFER-TIME = 2,432.14 * 4/5 = 1946 8574s gives SNR = 4.2 at 2200A, ETC 2367484. Will bin spectrum by factor of 1.4 to reach SNR=5. BUFFER-TIME = 2,432.14 * 4/5 = 1946 8574s gives SNR = 4.2 at 2200A, ETC 2367484. Will bin spectrum by factor of 1.4 to reach SNR=5. BUFFER-TIME = 2,432.14 * 4/5 = 1946 210s exposure gives SNR = 40, ETC 2367481. Total counts 2,576.81, so using E1 pseudoaperture. 89s exposure gives SNR = 40, ETC 2367480. Total counts 2,486.68, so using E1 pseudoaperture.