RA/DEC (2000)
23:47:57.848 +00:11:36.73
356.99103184214 +0.19353574011869
Type
SN Ia
Redshift
0.18
Discovery ReportClassification Report
Related AstroNotes: 2026-220
Reporting Group
WFST
Discovering Data Source
WFST
Discovery Date
2026-07-08 19:48:00.000
TNS AT
Y
Public
Y
Discovery Mag
21.3
Filter
g-WFST
Reporter/s
Zelin Xu, Dezheng Meng, Ji-an Jiang, Weiyu Wu, Zhengyan Liu, Junhan Zhao, Ziqing Jia (USTC) on behalf of the WFST collaboration
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2026tzm - 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
 ▌Rubin_LSSTCam_r
 ▌WFST_WFST-WFC_r
 ▌WFST_WFST-WFC_g
 ▌P48_ZTF-Cam_i
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_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
24352 2026-07-21 10:09:04 HET / HET-LRS 3000 Tyler Ryburn, Amy Westfall Panacea pipeline TexSNs tns_2026tzm_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 around maximum light. Classification done by SNID.
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
i-LSST Rubin_LSSTCam 2026-07-12 09:06:13 - 2026-07-12 09:06:13 2461233.879322 - 2461233.879322 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
603081 2026-07-12 09:06:13 2461233.879322 20.9042 0.01999 ABMag i-LSST Rubin_LSSTCam 30 Robot Data provided by Rubin/LSST
r-LSST Rubin_LSSTCam 2026-07-12 08:24:19 - 2026-07-12 08:24:19 2461233.8502183 - 2461233.8502183 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
603080 2026-07-12 08:24:19 2461233.8502183 20.8263 0.0149342 ABMag r-LSST Rubin_LSSTCam 30 Robot Data provided by Rubin/LSST
r-WFST WFST_WFST-WFC 2026-07-04 20:16:48 - 2026-07-04 20:16:48 2461226.345 - 2461226.345 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
602810 2026-07-04 20:16:48 2461226.345 21.35 ABMag r-WFST WFST_WFST-WFC 45 [Last non detection]
g-WFST WFST_WFST-WFC 2026-07-08 19:48:00 - 2026-07-08 19:48:00 2461230.325 - 2461230.325 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
602811 2026-07-08 19:48:00 2461230.325 21.3 0.08 ABMag g-WFST WFST_WFST-WFC 60
i-ZTF P48_ZTF-Cam 2026-07-11 09:23:57 - 2026-07-11 09:23:57 2461232.8916319 - 2461232.8916319 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
604877 2026-07-11 09:23:57 2461232.8916319 19.7246 ABMag i-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF
r-ZTF P48_ZTF-Cam 2026-07-11 11:16:46 - 2026-07-16 10:59:14 2461232.9699769 - 2461237.9578009 4
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
604884 2026-07-16 10:59:14 2461237.9578009 20.3405 0.205888 20.4308 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
604881 2026-07-15 09:58:04 2461236.9153241 20.6235 0.267746 20.3497 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
604880 2026-07-13 10:40:30 2461234.9447917 20.5853 0.243637 20.5078 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
604878 2026-07-11 11:16:46 2461232.9699769 20.5479 0.326172 20.4817 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
g-ZTF P48_ZTF-Cam 2026-07-13 10:28:49 - 2026-07-16 10:10:38 2461234.9366782 - 2461237.9240509 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
604883 2026-07-16 10:10:38 2461237.9240509 20.3639 0.309451 20.406 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
604882 2026-07-15 10:57:36 2461236.9566667 20.6363 0.27208 20.5844 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
604879 2026-07-13 10:28:49 2461234.9366782 20.6139 0.29426 20.4361 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
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
315683 2026-07-16 19:29:33 ALeRCE F. Forster, F.E. Bauer, G. Pignata et al. ALeRCE ZTF 23:47:57.845 +00:11:36.70 2026-07-11 11:16:46.004 20.5479 r-ZTF PSN DESI J356.9902+00.1930 ZTF26abhnqtp ZTF SN candidate classified using ALeRCE's stamp classifier (Carrasco-Davis et al. 2021) and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF26abhnqtp N
314692 2026-07-12 14:47:29 ALeRCE F. Forster, F.E. Bauer, G. Pignata et al. ALeRCE Rubin 23:47:57.848 +00:11:36.73 2026-07-12 08:24:18.857 20.8263 r-LSST PSN DESI J356.9902+00.1930 LSST-AP-DO-170657505023098990 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/170657505023098990?survey=lsst N
314578 2026-07-12 14:02:10 WFST_SN Zelin Xu, Dezheng Meng, Ji-an Jiang et al. WFST WFST 23:47:57.850 +00:11:36.76 2026-07-08 19:48:00.000 21.3 g-WFST PSN WFST260708atocd WFST 2026TNSTR2895....1X N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
24345 2026-07-22 14:27:22 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
24352 2026-07-21 10:09:04 HET / HET-LRS 3000 Tyler Ryburn, Amy Westfall Panacea pipeline TexSNs tns_2026tzm_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 around maximum light. Classification done by SNID.

Comments

TNS
System

Thu, 07/16/2026 - 19:29

Object coordinates updated

Object coordinates updated according to AT-report 314692 of Group Rubin
Previous RA, DEC: 23:47:57.848, +00:11:36.73 (356.99103184214, +0.19353574011869)
Updated RA, DEC: 23:47:57.848, +00:11:36.73 (356.99103184214, +0.19353574011869)

TNS
System

Sun, 07/12/2026 - 14:47

Object coordinates updated

Object coordinates updated according to AT-report 314692 of Group Rubin
Previous RA, DEC: 23:47:57.850, +00:11:36.76 (356.991042, +0.193544)
Updated RA, DEC: 23:47:57.848, +00:11:36.73 (356.99103184214, +0.19353574011869)