RA/DEC (2000)
11:19:50.693 -27:51:49.25
169.9612188 -27.8636818
Type
SN Ia
Redshift
0.014
Discovery ReportClassification Report
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2026-03-21 07:31:26.996
TNS AT
Y
Public
Y
Discovery Mag
18.5475
Filter
r-ZTF
Reporter/s
Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU), Theophile du Laz (Caltech) on behalf of ZTF
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2026gvk - 2026-03-25 07:47:50 P60 / SEDM (ZTF)z=
 ▌SN_2026gvk - 2026-03-23 06:42:27 FLWO-1.5m / FAST (VHU-TDA)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

 ▌GOTO-S_GOTO-4_L
 ▌ATLAS-STH_ATLAS-03_orange
 ▌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
23345 2026-03-25 07:47:50 P60 / SEDM 2700 SEDmRobot auto ZTF tns_2026gvk_2026-03-25_07-47-49.569660_P60_SEDM_ZTF.ascii Object
23327 2026-03-23 06:42:27 FLWO-1.5m / FAST Yize Dong (Harvard/CfA), S. Karthik Yadavalli (Harvard/CfA) Yize Dong (Harvard/CfA), S. Karthik Yadavalli (Harvard/CfA) VHU-TDA tns_2026gvk_2026-03-23_06-42-27.000_FLWO-1.5m_FAST_VHU-TDA.ascii tns_2026gvk_2026-03-23_06-42-27.000_FLWO-1.5m_FAST_VHU-TDA.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2026-03-14 11:53:03 - 2026-03-28 11:10:39 2461113.995174 - 2461127.965734 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
570736 2026-03-28 11:10:39 2461127.965734 16.03 0.01 ABMag L-GOTO GOTO-S_GOTO-4 180
570735 2026-03-14 11:53:03 2461113.995174 20.3 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
orange-ATLAS ATLAS-STH_ATLAS-03 2026-03-18 22:21:47 - 2026-03-21 22:11:12 2461118.43179 - 2461121.42444 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
569460 2026-03-21 22:11:12 2461121.42444 18.164 0.091 19.6 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot
569459 2026-03-18 22:21:47 2461118.43179 18.32 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot [Last non detection]
r-ZTF P48_ZTF-Cam 2026-03-13 07:01:27 - 2026-03-21 07:31:27 2461112.7926736 - 2461120.8135069 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
568951 2026-03-21 07:31:27 2461120.8135069 18.5475 0.081886 ABMag r-ZTF P48_ZTF-Cam
568950 2026-03-13 07:01:27 2461112.7926736 20.3888 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2026-03-21 09:26:04 - 2026-03-21 09:26:04 2461120.8931019 - 2461120.8931019 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
568952 2026-03-21 09:26:04 2461120.8931019 18.4571 0.107726 ABMag g-ZTF P48_ZTF-Cam
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
297640 2026-03-28 17:10:20 GOTO_bot M. Pursiainen, D. O'Neill, K. Ackley et al. GOTO GOTO 11:19:50.690 -27:51:49.48 2026-03-28 11:10:39.072 16.03 L-GOTO Other GOTO26coz GOTO N
297071 2026-03-23 11:32:34 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 11:19:50.687 -27:51:49.43 2026-03-21 22:11:11.616 18.164 orange-ATLAS PSN ATLAS26dfj ATLAS N
296837 2026-03-21 10:38:27 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 11:19:50.693 -27:51:49.25 2026-03-21 07:31:26.996 18.5475 r-ZTF PSN ZTF26aaoames ZTF 2026TNSTR1218....1S N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
23343 2026-03-25 09:22:42 ZTF_Bot1 J. Sollerman, J. Castaneda Jaimes, C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) ZTF SN Ia 0.014 1 ZTF 2026TNSCR1293....1S
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
23345 2026-03-25 07:47:50 P60 / SEDM 2700 SEDmRobot auto ZTF tns_2026gvk_2026-03-25_07-47-49.569660_P60_SEDM_ZTF.ascii Object
23325 2026-03-23 07:27:00 Yize Dong Yize Dong (Harvard/CfA), S. Karthik Yadavalli (Harvard/CfA), Anya Nugent (Harvard/CfA), V. Ashley Villar (Harvard/CfA), Alex Gagliano (Harvard/CfA), Kaylee de Soto (Harvard/CfA), Danielle Frostig(Harvard/CfA), Edo Berger (Harvard/CfA), Wasundara Athukoralalage (Harvard/CfA), Will Golay (Harvard/CfA), Daichi Hiramatsu (Harvard/CfA), Yuyang Chen (Harvard/CfA) VHU-TDA SN Ia-91T-like 0.12 1 1 VHU-TDA classified as 91T-like with SNID-SAGE 2026TNSCR1255....1D
Related files
File Comments Last Modified (UT) Modified By
tns_2026gvk_atrep_23325_VHU-TDA.png 2026-03-23 07:27:00 Yize Dong
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
23327 2026-03-23 06:42:27 FLWO-1.5m / FAST Yize Dong (Harvard/CfA), S. Karthik Yadavalli (Harvard/CfA) Yize Dong (Harvard/CfA), S. Karthik Yadavalli (Harvard/CfA) VHU-TDA tns_2026gvk_2026-03-23_06-42-27.000_FLWO-1.5m_FAST_VHU-TDA.ascii tns_2026gvk_2026-03-23_06-42-27.000_FLWO-1.5m_FAST_VHU-TDA.fits Object

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