RA/DEC (2000)
02:56:21.476 +05:12:24.54
44.0894819254 +5.20681628598
Type
SN Ia
Redshift
0.0418
Discovery ReportClassification Report
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2026-01-28 20:13:46.560
TNS AT
Y
Public
Y
Discovery Mag
18.64
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_2026bpg - 2026-02-03 05:35:57 P60 / SEDM (ZTF)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

 ▌ATLAS-TDO_ATLAS-05_wide
 ▌PS2_GPC2_w
 ▌GOTO-N_GOTO-1_L
 ▌P48_ZTF-Cam_g
 ▌ATLAS-HKO_ATLAS-02_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
22914 2026-02-03 05:35:57 P60 / SEDM 2160 SEDmRobot ZTF tns_2026bpg_2026-02-03_05-35-57.401449_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2026-01-20 22:13:22 - 2026-01-20 22:13:22 2461061.42595 - 2461061.42595 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
554584 2026-01-20 22:13:22 2461061.42595 18.93 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot [Last non detection]
w-P1 PS2_GPC2 2026-01-29 05:35:47 - 2026-01-29 05:35:47 2461069.73318 - 2461069.73318 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
555348 2026-01-29 05:35:47 2461069.73318 18.24 0.01 22 ABMag w-P1 PS2_GPC2 45 Robot
L-GOTO GOTO-N_GOTO-1 2026-01-24 20:09:24 - 2026-01-28 20:13:47 2461065.339859 - 2461069.342898 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
554453 2026-01-28 20:13:47 2461069.342898 18.64 0.1 ABMag L-GOTO GOTO-N_GOTO-1 180
554452 2026-01-24 20:09:24 2461065.339859 19.1 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
g-ZTF P48_ZTF-Cam 2026-01-21 05:11:22 - 2026-01-30 03:02:47 2461061.7162269 - 2461070.6269329 5
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
554647 2026-01-30 03:02:47 2461070.6269329 18.2489 0.117064 ABMag g-ZTF P48_ZTF-Cam
554646 2026-01-26 03:26:30 2461066.6434028 19.1615 0.191923 ABMag g-ZTF P48_ZTF-Cam
556007 2026-01-26 03:26:30 2461066.6434028 19.1096 0.227781 18.8156 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF, classified by Fink
554645 2026-01-21 05:11:22 2461061.7162269 20.7289 ABMag g-ZTF P48_ZTF-Cam [Last non detection]
556006 2026-01-21 05:11:22 2461061.7162269 20.3039 ABMag g-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF, classified by Fink
orange-ATLAS ATLAS-HKO_ATLAS-02 2026-01-26 07:42:57 - 2026-01-26 07:42:57 2461066.82149 - 2461066.82149 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
554585 2026-01-26 07:42:57 2461066.82149 18.582 0.185 18.63 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
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
290042 2026-02-05 19:48:14 Fink Julien Peloton, Anais Moller, Emille E. O. Ishida on behalf of the Fink broker Fink ZTF 02:56:21.468 +05:12:24.53 2026-01-26 03:26:30.002 19.1096 g-ZTF PSN ZTF26aaegbar ZTF Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF26aaegbar N
289735 2026-02-02 01:39:12 PS1_Bot1 K. C. Chambers, T. de Boer, J. Fairlamb et al. Pan-STARRS Pan-STARRS 02:56:21.476 +05:12:24.54 2026-01-29 05:35:46.752 18.24 w-P1 PSN PS26qf Pan-STARRS N
289354 2026-01-30 03:12:52 BTSbot_bot Nabeel Rehemtulla (CIERA, NU), Wynn Jacobson-Galán (Caltech), Theophile du Laz (Caltech) on behalf of ZTF ZTF ZTF 02:56:21.472 +05:12:24.60 2026-01-26 03:26:30.001 19.1615 g-ZTF PSN ZTF26aaegbar ZTF Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167). N
289320 2026-01-29 14:02:00 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 02:56:21.472 +05:12:24.70 2026-01-26 07:42:56.736 18.582 orange-ATLAS PSN ATLAS26bff ATLAS N
289251 2026-01-28 20:58:23 GOTO_bot D. O'Neill, K. Ackley, M. Dyer et al. GOTO GOTO 02:56:21.513 +05:12:25.05 2026-01-28 20:13:46.560 18.64 L-GOTO Other GOTO26ain GOTO 2026TNSTR.373....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
22913 2026-02-04 20:44:46 ZTF_Bot1 J. Johansson, J. Castaneda Jaimes, C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) ZTF SN Ia 0.0418 1 ZTF 2026TNSCR.477....1J
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
22914 2026-02-03 05:35:57 P60 / SEDM 2160 SEDmRobot ZTF tns_2026bpg_2026-02-03_05-35-57.401449_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Mon, 02/02/2026 - 01:39

Object coordinates updated

Object coordinates updated according to AT-report 289735 of Group Pan-STARRS
Previous RA, DEC: 02:56:21.472, +05:12:24.60 (44.0894652, +5.2068346)
Updated RA, DEC: 02:56:21.476, +05:12:24.54 (44.0894819254, +5.20681628598)

TNS
System

Fri, 01/30/2026 - 03:12

Object coordinates updated

Object coordinates updated according to AT-report 289354 of Group ZTF
Previous RA, DEC: 02:56:21.472, +05:12:24.70 (44.08946625, +5.20686)
Updated RA, DEC: 02:56:21.472, +05:12:24.60 (44.0894652, +5.2068346)

TNS
System

Thu, 01/29/2026 - 14:02

Object coordinates updated

Object coordinates updated according to AT-report 289320 of Group ATLAS
Previous RA, DEC: 02:56:21.513, +05:12:25.05 (44.089636, +5.206958)
Updated RA, DEC: 02:56:21.472, +05:12:24.70 (44.08946625, +5.20686)