RA/DEC (2000)
22:19:56.013 +25:54:56.12
334.983389425 +25.9155890269
Type
SLSN-I
Redshift
0.5063
Related AstroNotes: 2023-253
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2023-08-14 10:04:48.000
TNS AT
Y
Public
Y
Discovery Mag
21.05
Filter
r-ZTF
Reporter/s
Priscila Pessi (OKC) on behalf of ZTF SLSN group

Spectra

 SN_2023szi - 2023-10-18 00:00:00 MMT / BINOSPEC (FLEET)z=
Show H at z=vexp= km/s
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Show [Ca II] at z=vexp= km/s
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   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 P48_ZTF-Cam_r_
 PS1_GPC1_i_
   
Pointer position (MJD, Mag, Abs.Mag): (0.00, 0.00, 0.00)
Spectra
ID Obs-date (UT) Tel / Inst Exp-Time Observer/s Reducer/s Group Spectrum ascii file Spectrum fits file Spec. Type Assoc. Groups End prop. period Remarks
16068 2023-10-18 00:00:00 MMT / BINOSPEC Binospec Queue Service Observer Sebastian Gomez FLEET tns_2023szi_2023-10-18_MMT_BINOSPEC_FLEET.txt Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
r-ZTF P48_ZTF-Cam 2023-08-14 07:12:00 - 2023-08-14 10:04:48 2460170.8 - 2460170.92 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
364262 2023-08-14 10:04:48 2460170.92 21.05 0.306 21.24 ABMag r-ZTF P48_ZTF-Cam
364261 2023-08-14 07:12:00 2460170.8 21.12 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
i-P1 PS1_GPC1 2023-08-27 08:37:12 - 2023-08-27 08:37:12 2460183.85917 - 2460183.85917 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
377156 2023-08-27 08:37:12 2460183.85917 20.51 0.23 20.7 ABMag i-P1 PS1_GPC1 45 Robot
AT Reports
ID Time received (UT) Sender Reporter/s Reporting group Disc. Data Source RA DEC Discovery date (UT) Discovery Mag. Filter Related files AT Type Host name Internal name Assoc. Groups End prop. period Remarks Bibcode Unreal Auto classification
195165 2023-12-06 03:02:42 PS1_Bot1 K. C. Chambers,T. de Boer,J. Herman et al. Pan-STARRS Pan-STARRS 22:19:56.013 +25:54:56.12 2023-08-27 08:37:12.288 20.51 i-P1 PSN PS23lke Pan-STARRS N
188483 2023-09-19 12:55:05 Priscila Pessi Priscila Pessi (OKC) on behalf of ZTF SLSN group et al. ZTF ZTF 22:19:56.030 +25:54:56.29 2023-08-14 10:04:48.000 21.05 r-ZTF PSN ZTF23aaznlgb ZTF 2023TNSTR2324....1P N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
15982 2023-11-07 13:58:28 Sebastian Gomez Sebastian Gomez (STScI), Daichi Hiramatsu (Harvard CfA), Harsh Kumar (Harvard CfA), Edo Berger (Harvard CfA), Peter Blanchard (Northwestern) FLEET SLSN-I 0.5063 1 FLEET 2023szi was selected as a possible SLSN-I by our FLEET program with a P(SLSN-I) = 0.76 (Gomez et al., 2020, ApJ, 904, 74). The redshift of z = 0.5063 was determined from Mg II absorption. At this redshift the peak absolute magnitude of the SN is M_r ~ -22.0. While the spectrum is dominated by a strong blue continuum, given the bright luminosity, total lack of hydrogen, and FLEET probability, we determine a SLSN-I classification to be the most likely. 2023TNSCR2877....1G
Spectra
ID Obs-date (UT) Tel / Inst Exp-Time Observer/s Reducer/s Group Spectrum ascii file Spectrum fits file Spec. Type Assoc. Groups End prop. period Remarks
16068 2023-10-18 00:00:00 MMT / BINOSPEC Binospec Queue Service Observer Sebastian Gomez FLEET tns_2023szi_2023-10-18_MMT_BINOSPEC_FLEET.txt Object

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 195165 of Group Pan-STARRS
Previous RA, DEC: 22:19:56.030, +25:54:56.29 (334.983458, +25.915636)
Updated RA, DEC: 22:19:56.013, +25:54:56.12 (334.983389425, 25.9155890269)