RA/DEC (2000)
12:22:11.477 +07:44:51.00
185.547821 +7.7475
Type
SN Ia
Redshift
0.1355
Discovery ReportClassification Report
Related AstroNotes: 2026-68
Reporting Group
SGLF
Discovering Data Source
Rubin
Discovery Date
2026-02-19 05:58:27.000
TNS AT
Y
Public
Y
Host Name
SDSS J122211.50+074447.3
Host Redshift
0.135499
Discovery Mag
21.15
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
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2026ewl - 2026-03-08 13:41:51 Keck2 / DEIMOS (ZTF)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
23189 2026-03-08 13:41:51 Keck2 / DEIMOS Wynn Jacobson-Galan ZTF tns_2026ewl_2026-03-08_13-41-50.56_Keck2_DEIMOS_ZTF.flm Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
i-LSST Rubin_LSSTCam 2026-02-19 05:58:27 - 2026-02-19 05:58:27 2461090.7489236 - 2461090.7489236 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
562821 2026-02-19 05:58:27 2461090.7489236 21.15 0.03 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
293638 2026-03-05 22:14:40 Ismael Perez-Fournon M. Quintana-Ansaldo (ULL), I. Pérez-Fournon (IAC and ULL), D. Cano-Morales et al. SGLF Rubin 12:22:11.477 +07:44:51.00 2026-02-19 05:58:27.000 21.15 i-LSST PSN SDSS J122211.50+074447.3 LSST-AP-DO-170028526712914004 Rubin Rubin SN candidate 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/170028526712914004/ 2026TNSTR.922....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
23188 2026-03-12 18:18:46 Wynn Jacobson-Galan Wynn Jacobson-Galan ZTF SN Ia 0.1355 1 ZTF 2026TNSCR1048....1J
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
23189 2026-03-08 13:41:51 Keck2 / DEIMOS Wynn Jacobson-Galan ZTF tns_2026ewl_2026-03-08_13-41-50.56_Keck2_DEIMOS_ZTF.flm Object

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