17313( 9) - 13-Jul-2023 12:21:38 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 17313 Version: 9 Check-in Time: 13-Jul-2023 12:21:38 STScI Edit Number: 4 Title Tracing the UV CSM interaction over the first 50 days in the extremely nearby SN 2023ixf in M101 ------------------------------------------------------------------------------------ Type Cycle GO/DD 30 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Kyra Azalee Bostroem University of Arizona Y CoI: Prof. David J. Sand University of Arizona N CoI: Dr. Jennifer Andrews NOIRLab - Gemini North (HI) N CoI: Dr. Manisha Shrestha University of Arizona N CoI: Jeniveve Pearson University of Arizona N CoI: Dr. Griffin Hosseinzadeh University of Arizona N CoI: Dr. Stefano Valenti University of California - Davis N CoI: Mr. Nicolas Eduardo Meza Retamal University of California - Davis N CoI: Dr. Michael Jon Lundquist California Association for Research in N Astronomy (CARA) CoI: Dr. Nathan Smith University of Arizona N CoI: Mr. Yize Dong University of California - Davis N CoI: Emily Hoang University of California - Davis N CoI: Samuel Wyatt University of Washington N CoI: Dr. Jacob Jencson The Johns Hopkins University N CoI: Dr. Saurabh W. Jha Rutgers the State University of New Jersey N CoI: Dr. Curtis McCully Las Cumbres Observatory Global Telescope N Network CoI: Dr. Dale Andrew Howell Las Cumbres Observatory Global Telescope N Network CoI: Aravind Pazhayath Ravi University of Texas at Arlington N CoI: Dr. Sebastian Gomez Space Telescope Science Institute N CoI: Dr. Daichi Hiramatsu Smithsonian Institution Astrophysical N Observatory CoI: Prof. Alex V. Filippenko University of California - Berkeley N ------------------------------------------------------------------------------------ Abstract The 2023 May 19 explosion of SN~2023ixf in the nearby (~6.4 Mpc) spiral galaxy M101 has presented us with a once in an HST-lifetime chance to get a comprehensive NUV to NIR dataset of an interacting core collapse supernova. This disruptive DDT ToO will be complementary to an already approved Cycle 30 ToO proposal which has been triggered on this object, and will take over observations 10 days after explosion (ie May 29) and will persist over 5 epochs to 50 days post-explosion. With only a handful of core-collapse supernovae observed in the ultraviolet with HST, and almost all within 3 weeks of explosin, this proposal fills a crucial gap in our knowledge of the evolution of core-collapse supernovae in the ultraviolet. Only with HST can this be done, and only with a SN that is this close can we probe the UV far into time periods when the flux has normally faded significantly. ------------------------------------------------------------------------------------ Observations Description ------------------------ 17313( 9) - 13-Jul-2023 12:21:38 - [ 2] This program is to obtain NUV-NIR spectra with the G230LB, G430L, and G750L gratings of SN 2023ixf, 15, 20, 30, and 50 days after explosion. These epochs correspond to Jun 2, Jun 7, Jun 17, and Jul 7, 2023. Given the current brightness we will use the 52x0.2 arcsec slit at the E1 position for G230LB and G430L and the central position for better fringing for the G750L. ------------------------------------------------------------------------------------ 17313( 9) - 13-Jul-2023 12:21:38 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 SN2023IXF EXT-STAR, CIRCUMSTELLAR RA=14H03M38.5640S, J2000 V = 13.9 +/- 0.3 MATTER, SUPERNOVA, DEC=+54D18'42.00" SUPERNOVA TYPE II Reference Frame: ICRS ------------------------------------------------------------------------------------------------------------------------------------ 17313( 9) - 13-Jul-2023 12:21:38 - [ 4] Visit: 01 (day 15) Visit Requirements: SCHED 100%; BETWEEN 31-MAY-2023:00:00:00 AND 03-JUN-2023:00:00:00; TOO RESPONSE TIME 5.0D On Hold Comments: Additional Comments: This is the first visit in the series. Ideal execution date is Jun 2, 15 days after explosion. Supernovae evolve on the order of days in the UV at this phase. Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SN2023IXF STIS/CCD ACQ F25ND3 MIRROR 1 2.5 S (2.5 S) Comments: TA calculated for S/N of 40 at current brightness (STIS.ta.1857482), checked that this will not come close to saturation at max potential brightness. Expected brightness is V=10.8 ------------------------------------------------------------------------------------------------------------------------------------ 2 SN2023IXF STIS/CCD ACCUM 52X0.2E1 G230LB 2375 CR-SPLIT=6 1 1158 S (1158 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SN2023IXF STIS/CCD ACCUM 52X0.2E1 G430L 4300 CR-SPLIT=2 1 36 S (36 S) Comments: 24s per exposure is 60% satuartion of reaches maximum brightness of V=10mag, if expected V=10.8 S/N is still 211 @ central wavelength and S/N of 175 if it stays at current V=11.2 ------------------------------------------------------------------------------------------------------------------------------------ 4 SN2023IXF STIS/CCD ACCUM 52X0.2 G750L 7751 CR-SPLIT=2 1 28 S (28 S) Comments: 24s per exposure is 60% satuartion of reaches maximum brightness of V=10mag, if expected V=10.8 S/N is still 120 @ central wavelength and S/N of 100 if it stays at current V=11.2 ------------------------------------------------------------------------------------------------------------------------------------ 5 CCDFLAT STIS/CCD ACCUM 0.3X0.09 G750L 7751 2 DEF (0 S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ SN2023IXF 1 STIS/CCD ACQ F25ND3 MIRROR none none none none 1 N/A SN2023IXF 2 STIS/CCD ACCUM 52X0.2E1 G230LB 2375 none none none 1 1 N/A SN2023IXF 2 STIS/CCD ACCUM 52X0.2E1 G230LB 2375 none none none 2 1 N/A SN2023IXF 2 STIS/CCD ACCUM 52X0.2E1 G230LB 2375 none none none 3 1 N/A SN2023IXF 2 STIS/CCD ACCUM 52X0.2E1 G230LB 2375 none none none 4 1 N/A SN2023IXF 2 STIS/CCD ACCUM 52X0.2E1 G230LB 2375 none none none 5 1 N/A SN2023IXF 2 STIS/CCD ACCUM 52X0.2E1 G230LB 2375 none none none 6 1 N/A SN2023IXF 3 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 1 1 N/A 17313( 9) - 13-Jul-2023 12:21:38 - [ 5] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ SN2023IXF 3 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 2 1 N/A SN2023IXF 4 STIS/CCD ACCUM 52X0.2 G750L 7751 none none none 1 1 N/A SN2023IXF 4 STIS/CCD ACCUM 52X0.2 G750L 7751 none none none 2 1 N/A CCDFLAT 5 STIS/CCD ACCUM 0.3X0.09 G750L 7751 none none 1 none 1 N/A CCDFLAT 5 STIS/CCD ACCUM 0.3X0.09 G750L 7751 none none 2 none 1 N/A 17313( 9) - 13-Jul-2023 12:21:38 - [ 6] Visit: 02 (day 20) Visit Requirements: SCHED 100%; AFTER 01 BY 4 D TO 6 D; TOO RESPONSE TIME 5.0D On Hold Comments: Additional Comments: This is the second visit in the series. It should execute on Jun 7, 20 days after explosion. Supernovae evolve on the order of days in the UV at this phase. Expected brightness is V=11.2, maximum brightness V=10 Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SN2023IXF STIS/CCD ACQ F25ND3 MIRROR 1 5 S (5 S) Comments: TA calculated for S/N of 60 at current brightness V=11.2 ------------------------------------------------------------------------------------------------------------------------------------ 2 SN2023IXF STIS/CCD ACCUM 52X0.2E1 G230LB 2375 CR-SPLIT=4 1 1244 S (1244 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 SN2023IXF STIS/CCD ACCUM 52X0.2E1 G430L 4300 CR-SPLIT=2 1 32 S (32 S) Comments: Estimated brightness at this epoch is V=11.2; S/N~100 per exposure ------------------------------------------------------------------------------------------------------------------------------------ 4 SN2023IXF STIS/CCD ACCUM 52X0.2 G750L 7751 CR-SPLIT=2 1 24 S (24 S) Comments: Estimated brightness at this epoch is V=11.2; S/N~66 ------------------------------------------------------------------------------------------------------------------------------------ 5 CCDFLAT STIS/CCD ACCUM 0.3X0.09 G750L 7751 2 DEF (0 S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ SN2023IXF 1 STIS/CCD ACQ F25ND3 MIRROR none none none none 1 N/A SN2023IXF 2 STIS/CCD ACCUM 52X0.2E1 G230LB 2375 none none none 1 1 N/A SN2023IXF 2 STIS/CCD ACCUM 52X0.2E1 G230LB 2375 none none none 2 1 N/A SN2023IXF 2 STIS/CCD ACCUM 52X0.2E1 G230LB 2375 none none none 3 1 N/A SN2023IXF 2 STIS/CCD ACCUM 52X0.2E1 G230LB 2375 none none none 4 1 N/A SN2023IXF 3 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 1 1 N/A SN2023IXF 3 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 2 1 N/A SN2023IXF 4 STIS/CCD ACCUM 52X0.2 G750L 7751 none none none 1 1 N/A SN2023IXF 4 STIS/CCD ACCUM 52X0.2 G750L 7751 none none none 2 1 N/A CCDFLAT 5 STIS/CCD ACCUM 0.3X0.09 G750L 7751 none none 1 none 1 N/A CCDFLAT 5 STIS/CCD ACCUM 0.3X0.09 G750L 7751 none none 2 none 1 N/A 17313( 9) - 13-Jul-2023 12:21:38 - [ 7] Visit: 03 (day 30) Visit Requirements: SCHED 100%; BETWEEN 12-JUN-2023:00:18:29 AND 22-JUN-2023:05:18:29; TOO RESPONSE TIME 5.0D On Hold Comments: Additional Comments: This is the third visit in the series. It should execute on Jun 17, 30 days after explosion. Supernovae evolve on the order of days in the UV at this phase. Expected brightness is V=12.3, maximum brightness V=10. Brightness at this phase is very uncertain - we will monitor and update exposure times as nessesary Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SN2023IXF STIS/CCD ACQ F25ND3 MIRROR 1 7 S (7 S) Comments: TA calculated for S/N of 40 at brightness V=12.3 ------------------------------------------------------------------------------------------------------------------------------------ 2 SN2023IXF STIS/CCD ACCUM 52X0.2E1 G230LB 2375 CR-SPLIT=4 1 1232 S (1232 S) Comments: Estimated brightness at this epoch is V=12.3; S/N~10 per exposure ------------------------------------------------------------------------------------------------------------------------------------ 3 SN2023IXF STIS/CCD ACCUM 52X0.2E1 G430L 4300 CR-SPLIT=2 1 34 S (34 S) Comments: Estimated brightness at this epoch is V=12.3; S/N~65 per exposure ------------------------------------------------------------------------------------------------------------------------------------ 4 SN2023IXF STIS/CCD ACCUM 52X0.2 G750L 7751 CR-SPLIT=2 1 26 S (26 S) Comments: Estimated brightness at this epoch is V=12.3; S/N~45 ------------------------------------------------------------------------------------------------------------------------------------ 5 CCDFLAT STIS/CCD ACCUM 0.3X0.09 G750L 7751 2 DEF (0 S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ SN2023IXF 1 STIS/CCD ACQ F25ND3 MIRROR none none none none 1 N/A SN2023IXF 2 STIS/CCD ACCUM 52X0.2E1 G230LB 2375 none none none 1 1 N/A SN2023IXF 2 STIS/CCD ACCUM 52X0.2E1 G230LB 2375 none none none 2 1 N/A SN2023IXF 2 STIS/CCD ACCUM 52X0.2E1 G230LB 2375 none none none 3 1 N/A SN2023IXF 2 STIS/CCD ACCUM 52X0.2E1 G230LB 2375 none none none 4 1 N/A SN2023IXF 3 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 1 1 N/A SN2023IXF 3 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 2 1 N/A SN2023IXF 4 STIS/CCD ACCUM 52X0.2 G750L 7751 none none none 1 1 N/A SN2023IXF 4 STIS/CCD ACCUM 52X0.2 G750L 7751 none none none 2 1 N/A CCDFLAT 5 STIS/CCD ACCUM 0.3X0.09 G750L 7751 none none 1 none 1 N/A CCDFLAT 5 STIS/CCD ACCUM 0.3X0.09 G750L 7751 none none 2 none 1 N/A 17313( 9) - 13-Jul-2023 12:21:38 - [ 8] Visit: 04 (day 50) Visit Requirements: SCHED 100%; BETWEEN 03-JUL-2023:00:00:00 AND 12-JUL-2023:00:00:00; TOO RESPONSE TIME 5.0D On Hold Comments: Additional Comments: This is the fourth visit in the series. It should execute on Jul 7, 50 days after explosion. Supernovae evolve on the order of days in the UV at this phase. Expected brightness is V=12.3, maximum brightness V=10. Brightness at this phase is very uncertain - we will monitor and update exposure times as nessesary Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SN2023IXF STIS/CCD ACQ F25ND3 MIRROR 1 7 S (7 S) Comments: TA calculated for S/N of 40 at brightness V=12.3 ------------------------------------------------------------------------------------------------------------------------------------ 2 SN2023IXF STIS/CCD ACCUM 52X0.2E1 G230LB 2375 CR-SPLIT=4 1 1236 S (1236 S) Comments: Estimated brightness at this epoch is V=12.3; S/N~10 per exposure ------------------------------------------------------------------------------------------------------------------------------------ 3 SN2023IXF STIS/CCD ACCUM 52X0.2E1 G430L 4300 CR-SPLIT=2 1 32 S (32 S) Comments: Estimated brightness at this epoch is V=12.3; S/N~65 per exposure ------------------------------------------------------------------------------------------------------------------------------------ 4 SN2023IXF STIS/CCD ACCUM 52X0.2 G750L 7751 CR-SPLIT=2 1 24 S (24 S) Comments: Estimated brightness at this epoch is V=12.3; S/N~45 ------------------------------------------------------------------------------------------------------------------------------------ 5 CCDFLAT STIS/CCD ACCUM 0.3X0.09 G750L 7751 2 DEF (0 S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ SN2023IXF 1 STIS/CCD ACQ F25ND3 MIRROR none none none none 1 N/A SN2023IXF 2 STIS/CCD ACCUM 52X0.2E1 G230LB 2375 none none none 1 1 N/A SN2023IXF 2 STIS/CCD ACCUM 52X0.2E1 G230LB 2375 none none none 2 1 N/A SN2023IXF 2 STIS/CCD ACCUM 52X0.2E1 G230LB 2375 none none none 3 1 N/A SN2023IXF 2 STIS/CCD ACCUM 52X0.2E1 G230LB 2375 none none none 4 1 N/A SN2023IXF 3 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 1 1 N/A SN2023IXF 3 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 2 1 N/A SN2023IXF 4 STIS/CCD ACCUM 52X0.2 G750L 7751 none none none 1 1 N/A SN2023IXF 4 STIS/CCD ACCUM 52X0.2 G750L 7751 none none none 2 1 N/A CCDFLAT 5 STIS/CCD ACCUM 0.3X0.09 G750L 7751 none none 1 none 1 N/A CCDFLAT 5 STIS/CCD ACCUM 0.3X0.09 G750L 7751 none none 2 none 1 N/A 17313( 9) - 13-Jul-2023 12:21:38 - [ 9] Visit: 05 (late plateau) Visit Requirements: SCHED 100%; TOO RESPONSE TIME 5.0D On Hold Comments: Additional Comments: This is a repeat of Visit 4 due to GS failure. It should be executed as soon as possible as this is a time varying source and the UV is fading with time Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 SN2023IXF STIS/CCD ACQ F25ND3 MIRROR 1 7 S (7 S) Comments: TA calculated for S/N of 40 at brightness V=12.3 ------------------------------------------------------------------------------------------------------------------------------------ 2 SN2023IXF STIS/CCD ACCUM 52X0.2E1 G230LB 2375 CR-SPLIT=4 1 1236 S (1236 S) Comments: Estimated brightness at this epoch is V=12.3; S/N~10 per exposure ------------------------------------------------------------------------------------------------------------------------------------ 3 SN2023IXF STIS/CCD ACCUM 52X0.2E1 G430L 4300 CR-SPLIT=2 1 32 S (32 S) Comments: Estimated brightness at this epoch is V=12.3; S/N~65 per exposure ------------------------------------------------------------------------------------------------------------------------------------ 4 SN2023IXF STIS/CCD ACCUM 52X0.2 G750L 7751 CR-SPLIT=2 1 24 S (24 S) Comments: Estimated brightness at this epoch is V=12.3; S/N~45 ------------------------------------------------------------------------------------------------------------------------------------ 5 CCDFLAT STIS/CCD ACCUM 0.3X0.09 G750L 7751 2 DEF (0 S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ SN2023IXF 1 STIS/CCD ACQ F25ND3 MIRROR none none none none 1 N/A SN2023IXF 2 STIS/CCD ACCUM 52X0.2E1 G230LB 2375 none none none 1 1 N/A SN2023IXF 2 STIS/CCD ACCUM 52X0.2E1 G230LB 2375 none none none 2 1 N/A SN2023IXF 2 STIS/CCD ACCUM 52X0.2E1 G230LB 2375 none none none 3 1 N/A SN2023IXF 2 STIS/CCD ACCUM 52X0.2E1 G230LB 2375 none none none 4 1 N/A SN2023IXF 3 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 1 1 N/A SN2023IXF 3 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 2 1 N/A SN2023IXF 4 STIS/CCD ACCUM 52X0.2 G750L 7751 none none none 1 1 N/A SN2023IXF 4 STIS/CCD ACCUM 52X0.2 G750L 7751 none none none 2 1 N/A CCDFLAT 5 STIS/CCD ACCUM 0.3X0.09 G750L 7751 none none 1 none 1 N/A CCDFLAT 5 STIS/CCD ACCUM 0.3X0.09 G750L 7751 none none 2 none 1 N/A 17313( 9) - 13-Jul-2023 12:21:38 - [ 10] Summary Form for Proposal 17313 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures 0.3X0.09, 52X0.2, 52X0.2E1, F25ND3 ------------------------------------------------------------------------------------------------------------------------------------ Configurations STIS/CCD ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, ACQ ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=2, CR-SPLIT=4, CR-SPLIT=6 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements AFTER 01 BY 4 D TO 6 D, BETWEEN 03-JUL-2023:00:00:00 AND 12-JUL-2023:00:00:00, BETWEEN 12-JUN-2023:00:18:29 AND 22-JUN-2023:05:18:29, BETWEEN 31-MAY-2023:00:00:00 AND 03-JUN-2023:00:00:00, SCHED 100%, TOO RESPONSE TIME 5.0D ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements G230LB, G430L, G750L, MIRROR ------------------------------------------------------------------------------------------------------------------------------------ Target Names CCDFLAT, SN2023IXF ------------------------------------------------------------------------------------------------------------------------------------