Target SUPERNOVA1: There is no need or capability to test the scheduling of observations of generic targets in Phase I. This warning will go away the next time the proposal is loaded.
Target SUPERNOVA2: There is no need or capability to test the scheduling of observations of generic targets in Phase I. This warning will go away the next time the proposal is loaded.
Target SUPERNOVA3: There is no need or capability to test the scheduling of observations of generic targets in Phase I. This warning will go away the next time the proposal is loaded.
Target SUPERNOVA4: There is no need or capability to test the scheduling of observations of generic targets in Phase I. This warning will go away the next time the proposal is loaded.
Target SUPERNOVA5: There is no need or capability to test the scheduling of observations of generic targets in Phase I. This warning will go away the next time the proposal is loaded.
Target SUPERNOVA6: There is no need or capability to test the scheduling of observations of generic targets in Phase I. This warning will go away the next time the proposal is loaded.
Target SUPERNOVA7: There is no need or capability to test the scheduling of observations of generic targets in Phase I. This warning will go away the next time the proposal is loaded.0Assigned ID: 4771
----- Attempting Submission 1 (Wed May 24 22:50:43 GMT 2023) -----
HST Phase I Proposal 4771 successfully submitted.
Receipt: # 4771-1
----- Attempting Submission 2 (Wed May 24 23:02:53 GMT 2023) -----
HST Phase I Proposal 4771 successfully submitted.
Receipt: # 4771-2
----- Attempting Submission 3 (Wed May 24 23:54:38 GMT 2023) -----
HST Phase I Proposal 4771 successfully submitted.
Receipt: # 4771-3Generic targets for ToO activation.This target is not used in this proposal.
This target is not used in this proposal.
This target is not used in this proposal.
This target is not used in this proposal.
This target is not used in this proposal.
This target is not used in this proposal.
This target is not used in this proposal.
This target is not used in this proposal.
This target is not used in this proposal.
This target is not used in this proposal.
STIS CCDFLAT EXPOSURE EXCEEDS MAXIMUM EXPOSURE TIME
STIS CCDFLAT EXPOSURE EXCEEDS MAXIMUM EXPOSURE TIME
STIS EXPOSURE TIME ROUNDED DOWN TO NEAREST 0.1 SECONDS
STIS EXPOSURE TIME ROUNDED DOWN TO NEAREST 0.1 SECONDS
STIS EXPOSURE TIME ROUNDED DOWN TO NEAREST 0.1 SECONDS
STIS CCDFLAT EXPOSURE EXCEEDS MAXIMUM EXPOSURE TIME
STIS CCDFLAT EXPOSURE EXCEEDS MAXIMUM EXPOSURE TIME
STIS EXPOSURE TIME ROUNDED DOWN TO NEAREST 0.1 SECONDS
STIS EXPOSURE TIME ROUNDED DOWN TO NEAREST 0.1 SECONDS
STIS EXPOSURE TIME ROUNDED DOWN TO NEAREST 0.1 SECONDSSubmitting for initial target check. Flex thursday trigger 10/17/24.
Visits: ToO-6 and ToO-7
Target: SN2024XRX (plus repeat)
Added offset star.2038507143----- Attempting Submission 1 (Tue Sep 12 04:55:19 GMT 2023) -----
----- Attempting Submission 2 (Tue Sep 12 22:54:13 GMT 2023) -----
----- Attempting Submission 3 (Fri Nov 10 00:05:06 GMT 2023) -----
----- Attempting Submission 4 (Mon Feb 05 22:18:46 GMT 2024) -----
----- Attempting Submission 5 (Tue Mar 19 05:13:38 GMT 2024) -----
----- Attempting Submission 6 (Tue Apr 02 04:14:55 GMT 2024) -----
----- Attempting Submission 7 (Tue May 14 00:15:49 GMT 2024) -----
----- Attempting Submission 8 (Mon Jul 22 20:22:25 GMT 2024) -----
----- Attempting Submission 9 (Tue Aug 13 03:50:21 GMT 2024) -----
HST Phase II Proposal 17507 successfully submitted.
Receipt: # 17507-9
----- Attempting Submission 10 (Tue Aug 13 14:30:35 GMT 2024) -----
----- Attempting Submission 11 (Mon Sep 02 17:15:59 GMT 2024) -----
----- Attempting Submission 12 (Mon Oct 14 20:57:53 GMT 2024) -----
HST Phase II Proposal 17507 successfully submitted.
Receipt: # 17507-12
----- Attempting Submission 13 (Tue Oct 15 06:11:40 GMT 2024) -----Exposure times are correct but there are warnings about rounding to 0.1sGoing Up on a Thursday: Flash Spectroscopy of Type II Supernovae with HSTThe ultraviolet (UV) phase space of type II supernovae (SNe II) in the first week after explosion is almost entirely unconstrained. Intriguingly, the UV contains some of the most crucial information about both the most local circumstellar environment around the red supergiant progenitor prior to explosion as well as encodes the complexities of density, ionization and temperature in the outermost SN ejecta. Ultra-rapid or "flash" spectroscopy of young core-collapse supernovae (t < 1 week) enables the detection of narrow emission lines that arise from shock ionization of local circumstellar material (CSM), a direct tracer of the progenitor environment (<10 R_star). Here we propose UV/optical spectral observations with the HST STIS CCD through the Flex Thursday ToO program to obtain up to 7 spectra of SNe II in the first week after explosion. This program will increase the sample size of extremely young SN II with UV spectroscopy by more than a factor of 3, thus enabling robust constraints to be made on the diversity of red supergiant atmospheres and mass loss as well as SN II ejecta structure through spectral modeling with radiative transfer code CMFGEN. Furthermore, these observations have the potential to detect the UV narrow line signatures (aka. IIn-like or "flash" features) of CSM interaction in a SN II.ToO program through flex thursdayMr. Wynn Jacobson-Galan has extensive experience analyzing and reducing WFC3/UVIS data, the instrument proposed for this program. Mr. Jacobson-Galan is a graduate student with burgeoning expertise on the late-time light curves of supernovae observed with HST (2 published papers) and flash spectroscopy supernovae (2 published papers, 2 paper in prep). Prof. Raffaella Margutti is a leading expert on x-ray and radio observations of interacting supernovae. Dr. Luc Dessart is one of the world's leading experts on radiative transfer codes (CMFGEN) and hydrodynamics simulations (HERACLES). Drs. Armin Rest, Charles Kilpatrick, Suvi Gezari, and Matthew Siebert have significant experience in reduction and analysis of HST/WFC3, ACS, and WFPC2 imaging data, including the prime instruments used in these proposed observations. Profs. Ryan Foley and Ryan Chornock are an expert in transient surveys and follow up of all types of explosive transients. Mr. Qinan Wang and Kyle Davis will assist with data reduction and analysis of all targets obtained through these programs.Stellar Physics and Stellar Types6falsefalsefalsefalsefalsefalsefalsefalseSUPPORTEDSTARSUPERNOVA TYPE IINOHighest priority target for February Flex thursday triggerJ2000STARSUPERNOVA TYPE IIJ2000STARSUPERNOVA TYPE IIJ2000STARSUPERNOVA TYPE IIJ2000STARSUPERNOVA TYPE IIJ2000STARSUPERNOVA TYPE IIJ2000STARSUPERNOVA TYPE IIJ2000STARSUPERNOVA TYPE IIJ2000STARSUPERNOVA TYPE IIJ2000STARSUPERNOVA TYPE IIJ2000STARSUPERNOVA TYPE IIJ2000STARSUPERNOVA TYPE IIHighest priority target for February Flex thursday triggerToOSTARSUPERNOVA TYPE IIToOToOToOToOToOToOSTIS/CCDSpectroscopicNoNoG230LB2375STIS/CCDSpectroscopicNoNoG430L4300STIS/CCDSpectroscopicNoNoG750L7751STIS/CCDSpectroscopicNoNoG230LB2375STIS/CCDSpectroscopicNoNoG430L4300STIS/CCDSpectroscopicNoNoG750L7751STIS/CCDSpectroscopicNoNoG230LB2375STIS/CCDSpectroscopicNoNoG430L4300STIS/CCDSpectroscopicNoNoG750L7751STIS/CCDSpectroscopicNoNoG230LB2375STIS/CCDSpectroscopicNoNoG430L4300STIS/CCDSpectroscopicNoNoG750L7751STIS/CCDSpectroscopicNoNoG230LB2375STIS/CCDSpectroscopicNoNoG430L4300STIS/CCDSpectroscopicNoNoG750L7751STIS/CCDSpectroscopicNoNoG230LB2375STIS/CCDSpectroscopicNoNoG430L4300STIS/CCDSpectroscopicNoNoG750L7751STIS/CCDSpectroscopicNoNoG230LB2375STIS/CCDSpectroscopicNoNoG430L4300STIS/CCDSpectroscopicNoNoG750L7751The scheduling data was generated by CASM 32.0.CASM was run in Phase II mode.1707380935000201.99124658849303(Tic-Visit
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