RA/DEC (2000)
09:54:50.779 +02:25:52.90
148.711579 +2.431361
Type
SN II
Redshift
0.15
Reporting Group
SGLF
Discovering Data Source
Rubin
Discovery Date
2026-03-06 02:17:16.000
TNS AT
Y
Public
Y
Host Name
SDSS J095450.69+022553.0
Host Redshift
0.1518
Discovery Mag
21.69
Filter
i-LSST
Reporter/s
M. Quintana-Ansaldo (ULL), I. Pérez-Fournon (IAC and ULL), D. Cano-Morales, I. Correa-Plasencia, A.E. Hernández-Díaz, E. Lekaroz-Urriza (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

Spectra

 SN_2026eya - 2026-04-08 00:00:00 Mayall / DESI (DESI)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_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
23467 2026-04-08 00:00:00 Mayall / DESI DESI DESI tns_AT_2026eya_2026-04-08_Mayall_DESI_DESI.txt Object Spectrum shows a broad Hydrogen feature consistent with a type II SN
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
i-LSST Rubin_LSSTCam 2026-03-06 02:17:16 - 2026-03-06 02:17:16 2461105.5953241 - 2461105.5953241 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
562958 2026-03-06 02:17:16 2461105.5953241 21.69 0.06 ABMag i-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
293690 2026-03-06 12:31:30 Ismael Perez-Fournon M. Quintana-Ansaldo (ULL), I. Pérez-Fournon (IAC and ULL), D. Cano-Morales et al. SGLF Rubin 09:54:50.779 +02:25:52.90 2026-03-06 02:17:16.000 21.69 i-LSST PSN SDSS J095450.69+022553.0 LSST-AP-DO-170094456349392906 Rubin Recent Rubin SN candidate in the COSMOS DDF 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/170094456349392906/ 2026TNSTR.937....1Q N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
23465 2026-04-15 20:31:22 John Banovetz John Banovetz (LBNL), Xander J. Hall (CMU), Antonella Palmese (CMU), Stephen Bailey (LBNL), Segev BenZvi (U Rochester), Dylan Green (LBNL), Adam Myers (U of Wyoming), David Schlegel (LBNL), on behalf of the DESI Collaboration DESI SN II 0.15 1 DESI Classified as part of the DESI Transients Survey (DTS; Hall et al. 2026) 2026TNSCR1639....1B
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
23467 2026-04-08 00:00:00 Mayall / DESI DESI DESI tns_AT_2026eya_2026-04-08_Mayall_DESI_DESI.txt Object Spectrum shows a broad Hydrogen feature consistent with a type II SN

Comments