RA/DEC (2000)
10:04:53.338 -00:03:28.96
151.222240161 -0.0580446045592
Type
SN IIb
Redshift
0.0215
Discovery ReportClassification Report
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2026-03-05 10:39:49.248
TNS AT
Y
Public
Y
Discovery Mag
19.14
Filter
L-GOTO
Reporter/s
D. O'Neill, K. Ackley, M. Dyer, J. Lyman, K. Ulaczyk, D. Steeghs, D. Galloway, V. Dhillon, P. O'Brien, G. Ramsay, K. Noysena, R. Kotak, R. Breton, J. Casares, L. Nuttall, R. Starling, B. Gompertz, B. Godson, T. Killestein, A. Kumar, M. Pursiainen, on behalf of GOTO collaboration
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2026evy - 2026-03-08 09:25:35 UH88 / SNIFS (SCAT)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
 ▌PS2_GPC2_w
 ▌ATLAS-STH_ATLAS-03_orange
 ▌GOTO-N_GOTO-1_L
 ▌BG4_BlackGEM-Cam4_BG-q
 ▌P48_ZTF-Cam_i
 ▌P48_ZTF-Cam_r
 ▌ATLAS-MLO_ATLAS-01_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
23149 2026-03-08 09:25:35 UH88 / SNIFS 1800 Desai SCAT tns_2026evy_2461107.89277_UH88_SNIFS_SCAT.dat Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2026-03-05 10:39:49 - 2026-03-05 10:39:49 2461104.944319 - 2461104.944319 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
562761 2026-03-05 10:39:49 2461104.944319 19.14 0.16 ABMag L-GOTO GOTO-S_GOTO-4 360
w-P1 PS2_GPC2 2026-04-07 07:57:43 - 2026-04-07 07:57:43 2461137.83175 - 2461137.83175 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
574235 2026-04-07 07:57:43 2461137.83175 18.52 0.04 22 ABMag w-P1 PS2_GPC2 45 Robot
orange-ATLAS ATLAS-STH_ATLAS-03 2026-03-08 22:15:07 - 2026-03-08 22:15:07 2461108.42716 - 2461108.42716 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
563562 2026-03-08 22:15:07 2461108.42716 18.273 0.101 19.17 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot
L-GOTO GOTO-N_GOTO-1 2026-02-28 22:11:57 - 2026-02-28 22:11:57 2461100.424962 - 2461100.424962 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
562760 2026-02-28 22:11:57 2461100.424962 18.5 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
BG-q-BlackGem BG4_BlackGEM-Cam4 2025-12-30 07:19:01 - 2026-03-24 03:13:54 2461039.8048727 - 2461123.6346528 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
569562 2026-03-24 03:13:54 2461123.6346528 17.86 0.03 20.93 ABMag BG-q-BlackGem BG4_BlackGEM-Cam4 60 robotic
569561 2025-12-30 07:19:01 2461039.8048727 20.94 ABMag BG-q-BlackGem BG4_BlackGEM-Cam4 60 robotic [Last non detection]
i-ZTF P48_ZTF-Cam 2026-02-26 04:52:00 - 2026-03-06 08:40:58 2461097.7027778 - 2461105.8617824 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
562892 2026-03-06 08:40:58 2461105.8617824 18.8035 0.189538 ABMag i-ZTF P48_ZTF-Cam
564521 2026-03-06 08:40:58 2461105.8617824 18.8035 0.189538 19.1302 ABMag i-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF, classified by Fink
564520 2026-02-26 04:52:00 2461097.7027778 19.5558 ABMag i-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF, classified by Fink
r-ZTF P48_ZTF-Cam 2026-03-01 05:18:52 - 2026-03-06 09:12:00 2461100.7214352 - 2461105.8833333 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
562893 2026-03-06 09:12:00 2461105.8833333 18.6614 0.137814 ABMag r-ZTF P48_ZTF-Cam
562891 2026-03-01 05:18:52 2461100.7214352 20.0454 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
orange-ATLAS ATLAS-MLO_ATLAS-01 2026-03-07 11:44:42 - 2026-03-07 11:44:42 2461106.98937 - 2461106.98937 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
563561 2026-03-07 11:44:42 2461106.98937 17.55 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 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
299577 2026-04-10 10:28:48 PS1_Bot1 K. C. Chambers, T. de Boer, J. Fairlamb et al. Pan-STARRS Pan-STARRS 10:04:53.338 -00:03:28.96 2026-04-07 07:57:43.200 18.52 w-P1 PSN PS26axk Pan-STARRS N
297109 2026-03-24 08:29:02 BlackGEM_Bot1 L. Landsberg, H. Tranin, F. Stoppa et al. BlackGEM BlackGEM 10:04:53.346 -00:03:29.17 2026-03-24 03:13:54.000 17.86 BG-q-BlackGem PSN BGEM J100453.35-000329.2 BlackGEM N
294400 2026-03-13 19:45:32 Fink Julien Peloton, Anais Moller, Emille E. O. Ishida on behalf of the Fink broker Fink ZTF 10:04:53.339 -00:03:29.00 2026-03-06 08:40:57.999 18.8035 i-ZTF PSN ZTF26aajowek ZTF Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF26aajowek N
293964 2026-03-09 10:41:01 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 10:04:53.357 -00:03:28.92 2026-03-08 22:15:06.624 18.273 orange-ATLAS PSN ATLAS26crp ATLAS N
293663 2026-03-06 09:39:19 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 10:04:53.321 -00:03:29.15 2026-03-06 08:40:57.999 18.8035 i-ZTF PSN ZTF26aajowek ZTF N
293609 2026-03-05 11:10:05 GOTO_bot D. O'Neill, K. Ackley, M. Dyer et al. GOTO GOTO 10:04:53.268 -00:03:28.80 2026-03-05 10:39:49.248 19.14 L-GOTO Other GOTO26bpn GOTO 2026TNSTR.920....1O N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
23148 2026-03-08 11:12:29 Dhvanil Desai Dhvanil Desai (on behalf of the SCAT team) SCAT SN IIb 0.0215 1 SCAT Redshift from NED. 2026TNSCR.970....1D
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
23149 2026-03-08 09:25:35 UH88 / SNIFS 1800 Desai SCAT tns_2026evy_2461107.89277_UH88_SNIFS_SCAT.dat Object

Comments

TNS
System

Fri, 04/10/2026 - 10:28

Object coordinates updated

Object coordinates updated according to AT-report 299577 of Group Pan-STARRS
Previous RA, DEC: 10:04:53.339, -00:03:29.00 (151.22224723571, -0.058055114285714)
Updated RA, DEC: 10:04:53.338, -00:03:28.96 (151.222240161, -0.0580446045592)

TNS
System

Fri, 03/13/2026 - 19:45

Object coordinates updated

Object coordinates updated according to AT-report 294400 of Group ZTF
Previous RA, DEC: 10:04:53.321, -00:03:29.15 (151.2221711, -0.0580962)
Updated RA, DEC: 10:04:53.339, -00:03:29.00 (151.22224723571, -0.058055114285714)

TNS
System

Fri, 03/06/2026 - 09:39

Object coordinates updated

Object coordinates updated according to AT-report 293663 of Group ZTF
Previous RA, DEC: 10:04:53.268, -00:03:28.80 (151.221951, -0.058001)
Updated RA, DEC: 10:04:53.321, -00:03:29.15 (151.2221711, -0.0580962)