RA/DEC (2000)
10:04:17.291 +03:25:22.86
151.072046 +3.423017
Type
SN Ic-BL
Redshift
0.35
Discovery ReportClassification Report
Related AstroNotes: 2026-133
Reporting Group
SGLF
Discovering Data Source
Rubin
Discovery Date
2026-04-06 00:30:00.000
TNS AT
Y
Public
Y
Host Name
DESI J151.0721+3.4231
Discovery Mag
23.03
Filter
r-LSST
Reporter/s
I. Pérez-Fournon (IAC and ULL), D. Cano-Morales, I. Correa-Plasencia, A.E. Hernández-Díaz, E. Lekaroz-Urriza, M. Quintana-Ansaldo (ULL), F. Poidevin (IAC and ULL), C. Jiménez Ángel (GRANTECAN), R. Shirley (MPE), R. Marques-Chaves (Univ. of Geneva), and S. Geier (GRANTECAN & IAC) on behalf of SGLF
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2026jkr - 2026-05-07 00:00:00 Keck2 / KCWI (UCSC)z=
▌Show H at z=vexp= km/s
▌Show He at z=vexp= km/s
▌Show He II at z=vexp= km/s
▌Show C II at z=vexp= km/s
▌Show C III at z=vexp= km/s
▌Show C IV at z=vexp= km/s
▌Show N II at z=vexp= km/s
▌Show N III at z=vexp= km/s
▌Show N IV at z=vexp= km/s
▌Show N V at z=vexp= km/s
▌Show O at z=vexp= km/s
▌Show [O I] at z=vexp= km/s
▌Show O II at z=vexp= km/s
▌Show [O II] at z=vexp= km/s
▌Show [O III] at z=vexp= km/s
▌Show O V at z=vexp= km/s
▌Show O VI at z=vexp= km/s
▌Show Na at z=vexp= km/s
▌Show Mg at z=vexp= km/s
▌Show Mg II at z=vexp= km/s
▌Show Si II at z=vexp= km/s
▌Show S II at z=vexp= km/s
▌Show Ca II at z=vexp= km/s
▌Show [Ca II] at z=vexp= km/s
▌Show Fe II at z=vexp= km/s
▌Show Fe III at z=vexp= km/s
▌Show Å at z=vexp= km/s
▌Show Å at z=vexp= km/s
▌Show Å at z=vexp= km/s
▌Show Å at z=vexp= km/s
▌Show Tellurics 
▌Show Galaxy lines at z=
▌Show WR-WN at z=vexp= km/s
▌Show WR-WC/O at z=vexp= km/s
   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 ▌Rubin_LSSTCam_r
   
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
23685 2026-05-07 00:00:00 Keck2 / KCWI Jenna Karcheski, Ryan Foley Kishore Patra UCSC tns_2026jkr_2026-05-07_Keck2_KCWI_UCSC.flm Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
r-LSST Rubin_LSSTCam 2026-04-06 00:30:00 - 2026-04-06 00:30:00 2461136.5208333 - 2461136.5208333 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
574828 2026-04-06 00:30:00 2461136.5208333 23.03 0.11 ABMag r-LSST Rubin_LSSTCam 30 Rubin
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 ADS Bibcode Unreal Auto classification
299912 2026-04-13 02:31:01 Ismael Perez-Fournon I. Pérez-Fournon (IAC and ULL), D. Cano-Morales, I. Correa-Plasencia et al. SGLF Rubin 10:04:17.291 +03:25:22.86 2026-04-06 00:30:00.000 23.03 r-LSST PSN DESI J151.0721+3.4231 LSST-AP-DO-170230797176406143 Rubin Rubin SN candidate in the COSMOS DDF field discovered using the public LSST alerts, the LSST brokers, and our SGLF filters. LSST light curve available at the LSST brokers, e.g.: https://lasair.lsst.ac.uk/objects/170230797176406143/ 2026TNSTR1574....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
23682 2026-05-11 10:55:30 Kishore C. Patra Jenna Karcheski, Kishore C. Patra, Ryan J. Foley (UCSC) UCSC SN Ic-BL 0.35 1 UCSC We report the classification of AT 2026jkr from spectroscopic observations with the Keck Cosmic Web Imager (KCWI) Integral Field Spectrograph. Observations were made on 2026 May 7 UT. Classification was performed with SNID (Blondin & Tonry, 2007, ApJ, 666, 1024). 2026TNSCR2052....1K
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
23685 2026-05-07 00:00:00 Keck2 / KCWI Jenna Karcheski, Ryan Foley Kishore Patra UCSC tns_2026jkr_2026-05-07_Keck2_KCWI_UCSC.flm Object

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