RA/DEC (2000)
23:47:57.495 +00:11:36.78
356.98956415515 +0.19354912753885
Type
SN Ia
Redshift
0.18
Discovery ReportClassification Report
Related AstroNotes: 2026-220
Reporting Group
ALeRCE
Discovering Data Source
Rubin
Discovery Date
2026-06-28 09:54:07.862
TNS AT
Y
Public
Y
Host Name
DESI J356.9902+00.1930
Host Redshift
0.1845563
Discovery Mag
20.6361
Filter
i-LSST
Reporter/s
F. Forster, F.E. Bauer, G. Pignata, A. Munoz-Arancibia, S. Jurado, A. Mourao, A. Alvarez, F. Andrades, A. Bayo, G. Cabrera-Vives, M. Catelan, P.A. Estevez, S. Eyheramendy, B. Galindo, L. Hernandez-Garcia, H. Larranaga, K. Medina, D. Moreno-Cartagena, E. Munoz, I. Reyes, P. Sanchez-Saez, D. Rodriguez-Mancini, on behalf of the ALeRCE broker
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2026rcf - 2026-07-21 10:09:04 HET / HET-LRS (TexSNs)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
z-step:   v-step: 
   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 ▌Rubin_LSSTCam_i
 ▌WFST_WFST-WFC_g
   
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
24351 2026-07-21 10:09:04 HET / HET-LRS 3000 Tyler Ryburn, Amy Westfall Panacea pipeline TexSNs tns_2026rcf_2026-07-21_10-09-04_HET_HET-LRS_TexSNs.dat Object The spectrum is consistent with that of a Type Ia SN at z=0.18 taken at least two weeks after maximum light. Classification done by SNID.
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
i-LSST Rubin_LSSTCam 2026-06-28 09:54:08 - 2026-06-30 08:47:01 2461219.912591 - 2461221.8659891 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
596996 2026-06-30 08:47:01 2461221.8659891 20.6529 0.0198402 ABMag i-LSST Rubin_LSSTCam 30 Robot Data provided by Rubin/LSST
596995 2026-06-28 09:54:08 2461219.912591 20.6361 0.024084 ABMag i-LSST Rubin_LSSTCam 30 Robot Data provided by Rubin/LSST
g-WFST WFST_WFST-WFC 2026-07-03 19:46:34 - 2026-07-03 19:46:34 2461225.324 - 2461225.324 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
600564 2026-07-03 19:46:34 2461225.324 20.56 0.09 ABMag g-WFST WFST_WFST-WFC 45
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
313570 2026-07-09 13:34:37 WFST_SN Zelin Xu, Dezheng Meng, Ji-an Jiang et al. WFST WFST 23:47:57.500 +00:11:36.75 2026-07-03 19:46:33.600 20.56 g-WFST PSN WFST260703bhzyi WFST N
311452 2026-06-30 19:51:59 ALeRCE F. Forster, F.E. Bauer, G. Pignata et al. ALeRCE Rubin 23:47:57.495 +00:11:36.78 2026-06-28 09:54:07.862 20.6361 i-LSST PSN DESI J356.9902+00.1930 LSST-AP-DO-170595943092060203 Rubin SN candidate classified using ALeRCE's stamp classifier and the public Rubin/LSST stream. Discovery image and light curve in https://lsst.alerce.online/object/170595943092060203?survey=lsst 2026TNSTR2748....1F N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
24344 2026-07-22 14:22:49 Jozsef Vinko Jozsef Vinko (Konkoly / UT Austin), J. Craig Wheeler (UT Austin), Krisztian Sarneczky (Konkoly) TexSNs SN Ia 0.18 1 TexSNs A Type Ia supernova based on a spectrum taken with the 10m Hobby-Eberly Telescope Low Resolution Spectrograph2 (HET LRS2-B),
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
24351 2026-07-21 10:09:04 HET / HET-LRS 3000 Tyler Ryburn, Amy Westfall Panacea pipeline TexSNs tns_2026rcf_2026-07-21_10-09-04_HET_HET-LRS_TexSNs.dat Object The spectrum is consistent with that of a Type Ia SN at z=0.18 taken at least two weeks after maximum light. Classification done by SNID.

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