RA/DEC (2000)
01:15:51.484 -54:33:23.96
18.9645175 -54.55665625
Type
SN IIP
Redshift
0.018
Discovery ReportClassification Report
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2026-07-28 15:30:34.272
TNS AT
Y
Public
Y
Host Name
ESO151-037
Comments
[Object cross-matched with ESO151-037]
Discovery Mag
17.28
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_2026wiv - 2026-08-08 21:43:50 Lesedi / Mookodi (BlackGEM)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

 ▌GOTO-S_GOTO-4_L
 ▌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
24453 2026-08-08 21:43:50 Lesedi / Mookodi 600 N. Erasmus, S. Potter, C. van Gend, H. Worters, P. Rabe (all SAAO) Simon de Wet BlackGEM tns_2026wiv_2026-08-08_21-43-49.756_Lesedi_Mookodi_BlackGEM.csv Object The classification target was automatically flagged for follow-up by the Virtual Research Assistant [1] and observations were programatically triggered using the ATLAS API Client [2] and the SAAO Intelligent Observatory framework [3,4]. [1] https://ui.adsabs.harvard.edu/abs/2025ApJ...990..201S/abstract [2] https://ui.adsabs.harvard.edu/abs/2026JOSS...11.9462S/abstract [3] https://ui.adsabs.harvard.edu/abs/2024JATIS..10b5005E/abstract [4] https://ui.adsabs.harvard.edu/abs/2025RMxAC..59..201E/abstract
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2026-07-20 18:45:59 - 2026-07-28 15:30:34 2461242.281933 - 2461250.146229 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
607815 2026-07-28 15:30:34 2461250.146229 17.28 0.03 ABMag L-GOTO GOTO-S_GOTO-4 180
607814 2026-07-20 18:45:59 2461242.281933 20.3 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
orange-ATLAS ATLAS-STH_ATLAS-03 2026-08-02 00:32:48 - 2026-08-08 01:17:40 2461254.52278 - 2461260.55394 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
611223 2026-08-08 01:17:40 2461260.55394 17.081 0.076 18.32 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot
611222 2026-08-02 00:32:48 2461254.52278 19.04 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
319549 2026-08-08 15:05:42 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 01:15:51.484 -54:33:23.96 2026-08-08 01:17:40.416 17.081 orange-ATLAS PSN ATLAS26jsp ATLAS N
317339 2026-07-28 15:46:22 GOTO_bot D. O'Neill, K. Ackley, M. Dyer et al. GOTO GOTO 01:15:51.480 -54:33:23.93 2026-07-28 15:30:34.272 17.28 L-GOTO Other GOTO26hll GOTO 2026TNSTR3073....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
24446 2026-08-10 08:47:50 Simon de Wet Simon de Wet BlackGEM SN IIP 0.018 1 BlackGEM SNID-SAGE (https://arxiv.org/abs/2603.2874) finds close matches to Type IIP spectra before peak. We assign the known redshift of the host galaxy from NED as the SN redshift. 2026TNSCR3252....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
24453 2026-08-08 21:43:50 Lesedi / Mookodi 600 N. Erasmus, S. Potter, C. van Gend, H. Worters, P. Rabe (all SAAO) Simon de Wet BlackGEM tns_2026wiv_2026-08-08_21-43-49.756_Lesedi_Mookodi_BlackGEM.csv Object The classification target was automatically flagged for follow-up by the Virtual Research Assistant [1] and observations were programatically triggered using the ATLAS API Client [2] and the SAAO Intelligent Observatory framework [3,4]. [1] https://ui.adsabs.harvard.edu/abs/2025ApJ...990..201S/abstract [2] https://ui.adsabs.harvard.edu/abs/2026JOSS...11.9462S/abstract [3] https://ui.adsabs.harvard.edu/abs/2024JATIS..10b5005E/abstract [4] https://ui.adsabs.harvard.edu/abs/2025RMxAC..59..201E/abstract

Comments

TNS
System

Sat, 08/08/2026 - 15:05

Object coordinates updated

Object coordinates updated according to AT-report 319549 of Group ATLAS
Previous RA, DEC: 01:15:51.480, -54:33:23.93 (18.964502, -54.556647)
Updated RA, DEC: 01:15:51.484, -54:33:23.96 (18.9645175, -54.55665625)