RA/DEC (2000)
03:04:02.808 -13:00:55.21
46.0116980607 -13.0153364849
Type
SN Ic-BL
Redshift
0.05
Discovery ReportClassification Report
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-11-29 22:32:51.072
TNS AT
Y
Public
Y
Discovery Mag
19.1
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_2025afto - 2025-12-12 06:02:06 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
   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 ▌PS2_GPC2_w
 ▌ATLAS-CHL_ATLAS-04_orange
 ▌ATLAS-STH_ATLAS-03_orange
 ▌GOTO-N_GOTO-1_L
 ▌BG4_BlackGEM-Cam4_BG-q
 ▌BG2_BlackGEM-Cam2_BG-q
 ▌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
22574 2025-12-12 06:02:06 P60 / SEDM 2700 SEDmRobot ZTF tns_2025afto_2025-12-12_06-02-06.386091_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
w-P1 PS2_GPC2 2025-12-22 07:08:36 - 2025-12-22 07:08:36 2461031.79764 - 2461031.79764 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
546755 2025-12-22 07:08:36 2461031.79764 18.59 0.03 22 ABMag w-P1 PS2_GPC2 45 Robot
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-12-08 01:40:35 - 2025-12-08 01:40:35 2461017.56985 - 2461017.56985 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
536681 2025-12-08 01:40:35 2461017.56985 17.919 0.075 19.15 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
orange-ATLAS ATLAS-STH_ATLAS-03 2025-12-05 22:07:05 - 2025-12-05 22:07:05 2461015.42159 - 2461015.42159 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
536680 2025-12-05 22:07:05 2461015.42159 16.5 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot [Last non detection]
L-GOTO GOTO-N_GOTO-1 2025-11-26 00:28:48 - 2025-11-29 22:32:51 2461005.520003 - 2461009.439482 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
535882 2025-11-29 22:32:51 2461009.439482 19.1 0.14 ABMag L-GOTO GOTO-N_GOTO-1 180
535881 2025-11-26 00:28:48 2461005.520003 20.1 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
BG-q-BlackGem BG4_BlackGEM-Cam4 2025-11-11 01:57:03 - 2025-11-11 01:57:03 2460990.5812847 - 2460990.5812847 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
536973 2025-11-11 01:57:03 2460990.5812847 20.41 ABMag BG-q-BlackGem BG4_BlackGEM-Cam4 60 robotic [Last non detection]
BG-q-BlackGem BG2_BlackGEM-Cam2 2025-12-09 02:24:29 - 2025-12-09 02:24:29 2461018.6003356 - 2461018.6003356 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
536974 2025-12-09 02:24:29 2461018.6003356 18.12 0.05 20.35 ABMag BG-q-BlackGem BG2_BlackGEM-Cam2 60 robotic
r-ZTF P48_ZTF-Cam 2025-12-06 07:16:53 - 2025-12-06 07:16:53 2461015.8033912 - 2461015.8033912 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
536564 2025-12-06 07:16:53 2461015.8033912 18.1043 0.0663942 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2025-12-06 05:36:02 - 2025-12-06 05:36:02 2461015.7333565 - 2461015.7333565 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
536563 2025-12-06 05:36:02 2461015.7333565 18.1483 0.085981 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
285430 2026-01-01 21:15:18 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 03:04:02.808 -13:00:55.21 2025-12-22 07:08:36.096 18.59 w-P1 PSN PS25mhj Pan-STARRS N
279761 2025-12-09 07:36:02 BlackGEM_Bot1 G. Ramsay,H. Tranin,F. Stoppa et al. BlackGEM BlackGEM 03:04:02.819 -13:00:55.15 2025-12-09 02:24:29.000 18.12 BG-q-BlackGem PSN BGEM J030402.82-130055.2 BlackGEM N
279627 2025-12-08 08:48:29 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland (IfA et al. ATLAS ATLAS 03:04:02.824 -13:00:55.69 2025-12-08 01:40:35.040 17.919 orange-ATLAS PSN ATLAS25piy ATLAS N
279575 2025-12-07 15:18:58 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 03:04:02.806 -13:00:55.20 2025-12-06 05:36:02.001 18.1483 g-ZTF PSN ZTF25acfzcip ZTF N
279285 2025-12-03 18:58:02 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 03:04:02.797 -13:00:55.21 2025-11-29 22:32:51.072 19.1 L-GOTO Other GOTO25kyy GOTO 2025TNSTR4822....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
22573 2025-12-13 00:40:26 ZTF_Bot1 J. Johansson, J. Castaneda Jaimes, M. Chu, C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) ZTF SN Ic-BL 0.05 1 ZTF 2025TNSCR4959....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
22574 2025-12-12 06:02:06 P60 / SEDM 2700 SEDmRobot ZTF tns_2025afto_2025-12-12_06-02-06.386091_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Thu, 01/01/2026 - 21:15

Object coordinates updated

Object coordinates updated according to AT-report 285430 of Group Pan-STARRS
Previous RA, DEC: 03:04:02.806, -13:00:55.20 (46.011692, -13.0153325)
Updated RA, DEC: 03:04:02.808, -13:00:55.21 (46.0116980607, -13.0153364849)

TNS
System

Sun, 12/07/2025 - 15:18

Object coordinates updated

Object coordinates updated according to AT-report 279575 of Group ZTF
Previous RA, DEC: 03:04:02.797, -13:00:55.21 (46.011656, -13.015337)
Updated RA, DEC: 03:04:02.806, -13:00:55.20 (46.011692, -13.0153325)