RA/DEC (2000)
09:56:52.360 +03:28:11.71
149.2181651 +3.4699191
Type
SN Ia
Redshift
0.164
Discovery ReportClassification Report
Reporting Group
None
Discovering Data Source
Rubin
Discovery Date
2026-03-10 00:00:00.000
TNS AT
Y
Public
Y
Host Name
2MASXJ09565234%2B0328119
Host Redshift
0.164
Discovery Mag
20.57
Filter
i-LSST
Reporter/s
Megan Newsome (UT Austin), Sebastian Gomez (UT Austin)
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2026fgl - 2026-03-14 00:00:00 VLT-UT1 / FORS2 (None)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

 ▌ATLAS-TDO_ATLAS-05_wide
 ▌Rubin_LSSTCam_i
 ▌ATLAS-STH_ATLAS-03_orange
   
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
23229 2026-03-14 00:00:00 VLT-UT1 / FORS2 VLT Staff None tns_2026fgl_2026-03-14_VLT-UT1_FORS2_None.txt Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2026-03-15 23:15:37 - 2026-03-15 23:15:37 2461115.46918 - 2461115.46918 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
565562 2026-03-15 23:15:37 2461115.46918 19.737 0.111 20 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot
i-LSST Rubin_LSSTCam 2026-03-06 02:17:17 - 2026-03-06 02:17:17 2461105.595334 - 2461105.595334 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
563898 2026-03-06 02:17:17 2461105.595334 20.57 ABMag i-LSST Rubin_LSSTCam
orange-ATLAS ATLAS-STH_ATLAS-03 2026-03-14 21:42:50 - 2026-03-14 21:42:50 2461114.40475 - 2461114.40475 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
565561 2026-03-14 21:42:50 2461114.40475 19.5 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot [Last non detection]
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
294872 2026-03-17 20:13:30 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 09:56:52.365 +03:28:11.82 2026-03-15 23:15:37.152 19.737 wide-ATLAS PSN ATLAS26dcd ATLAS N
294134 2026-03-10 21:18:52 Yize Dong Megan Newsome (UT Austin), Sebastian Gomez (UT Austin) Rubin 09:56:52.360 +03:28:11.71 2026-03-10 00:00:00.000 20.57 i-LSST NUC 2MASXJ09565234%2B0328119 Rubin 2026TNSTR1004....1N N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
23228 2026-03-16 16:16:20 Charlotte Angus C. Angus (QUB), L. Makrygianni (Lancaster), M. Newsome (UT Austin) None SN Ia 0.164 1 Spectrum taken with VLT/FORS2 on 14/03/2026. Following host subtraction, we find matches to templates of SNe Ia prior to maximum light. Redshift measured from host galaxy absorption in the spectrum. Classification was done using NGSF and SNID 2026TNSCR1123....1A
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
23229 2026-03-14 00:00:00 VLT-UT1 / FORS2 VLT Staff None tns_2026fgl_2026-03-14_VLT-UT1_FORS2_None.txt Object

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