RA/DEC (2000)
05:26:48.500 -20:48:52.24
81.7020816539 -20.8145111365
Type
SN Ia
Redshift
0.092
Discovery ReportClassification Report
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-12-09 12:53:10.752
TNS AT
Y
Public
Y
Discovery Mag
20.07
Filter
L-GOTO
Reporter/s
D. O'Neill, M. Kennedy, 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_2025aggc - 2025-12-22 06:42:37 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

 ▌GOTO-S_GOTO-3_L
 ▌PS2_GPC2_w
 ▌ATLAS-STH_ATLAS-03_cyan
 ▌GOTO-N_GOTO-1_L
 ▌BG4_BlackGEM-Cam4_BG-q
 ▌BG3_BlackGEM-Cam3_BG-q
 ▌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
22667 2025-12-22 06:42:37 P60 / SEDM 2700 SEDmRobot auto ZTF tns_2025aggc_2025-12-22_06-42-37.447638_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-3 2025-12-09 12:53:11 - 2025-12-09 12:53:11 2461019.036932 - 2461019.036932 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
537257 2025-12-09 12:53:11 2461019.036932 20.07 0.15 ABMag L-GOTO GOTO-S_GOTO-3 180
w-P1 PS2_GPC2 2025-12-28 09:07:43 - 2025-12-28 09:07:43 2461037.88036 - 2461037.88036 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
545507 2025-12-28 09:07:43 2461037.88036 19.26 0.04 22 ABMag w-P1 PS2_GPC2 45 Robot
cyan-ATLAS ATLAS-STH_ATLAS-03 2025-12-15 22:57:55 - 2025-12-15 22:57:55 2461025.45689 - 2461025.45689 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
539324 2025-12-15 22:57:55 2461025.45689 19.349 0.139 19.79 ABMag cyan-ATLAS ATLAS-STH_ATLAS-03 30 Robot
L-GOTO GOTO-N_GOTO-1 2025-12-09 00:42:31 - 2025-12-09 00:42:31 2461018.529519 - 2461018.529519 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
537256 2025-12-09 00:42:31 2461018.529519 19.3 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
BG-q-BlackGem BG4_BlackGEM-Cam4 2025-11-11 06:12:31 - 2025-11-11 06:12:31 2460990.7586921 - 2460990.7586921 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
586032 2025-11-11 06:12:31 2460990.7586921 19.76 ABMag BG-q-BlackGem BG4_BlackGEM-Cam4 60 robotic [Last non detection]
BG-q-BlackGem BG3_BlackGEM-Cam3 2025-12-09 05:41:23 - 2025-12-09 05:41:23 2461018.7370718 - 2461018.7370718 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
586033 2025-12-09 05:41:23 2461018.7370718 19.35 0.11 20.07 ABMag BG-q-BlackGem BG3_BlackGEM-Cam3 60 robotic
g-ZTF P48_ZTF-Cam 2025-12-08 07:21:54 - 2025-12-13 09:03:05 2461017.806875 - 2461022.8771412 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
538324 2025-12-13 09:03:05 2461022.8771412 19.1999 0.189264 ABMag g-ZTF P48_ZTF-Cam
538323 2025-12-12 07:03:42 2461021.7942361 19.524 0.201432 ABMag g-ZTF P48_ZTF-Cam
538322 2025-12-08 07:21:54 2461017.806875 19.4151 ABMag g-ZTF P48_ZTF-Cam [Last non detection]
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-12-14 11:35:16 - 2025-12-14 11:35:16 2461023.98282 - 2461023.98282 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
539323 2025-12-14 11:35:16 2461023.98282 19.29 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 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
305580 2026-05-27 14:22:53 BlackGEM_Bot1 H. Tranin, F. Stoppa, D. Pieterse et al. BlackGEM BlackGEM 05:26:48.480 -20:48:52.32 2025-12-09 05:41:23.000 19.35 BG-q-BlackGem PSN BGEM J052648.48-204852.3 BlackGEM N
284262 2025-12-30 21:15:47 PS1_Bot1 K. C. Chambers, T. de Boer, J. Fairlamb et al. Pan-STARRS Pan-STARRS 05:26:48.500 -20:48:52.24 2025-12-28 09:07:43.104 19.26 w-P1 PSN PS25kto Pan-STARRS N
280814 2025-12-16 09:15:36 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 05:26:48.491 -20:48:52.28 2025-12-15 22:57:55.296 19.349 cyan-ATLAS PSN ATLAS25puh ATLAS N
280328 2025-12-13 10:05:16 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 05:26:48.474 -20:48:52.58 2025-12-12 07:03:41.999 19.524 g-ZTF PSN ZTF25acgytsy ZTF N
279902 2025-12-10 14:16:14 GOTO_bot D. O'Neill, M. Kennedy, K. Ackley et al. GOTO GOTO 05:26:48.428 -20:48:52.35 2025-12-09 12:53:10.752 20.07 L-GOTO Other GOTO25lju GOTO 2025TNSTR4908....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
22666 2025-12-22 07:35:56 ZTF_Bot1 C. Fremling, D. Neill, Y. Sharma on behalf of the SEDM Team (Caltech) and the Zwicky Transient Facility (ZTF) based on SNIascore ZTF SN Ia 0.092 1 ZTF 2025TNSCR5135....1F
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
22667 2025-12-22 06:42:37 P60 / SEDM 2700 SEDmRobot auto ZTF tns_2025aggc_2025-12-22_06-42-37.447638_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Tue, 12/30/2025 - 21:15

Object coordinates updated

Object coordinates updated according to AT-report 284262 of Group Pan-STARRS
Previous RA, DEC: 05:26:48.474, -20:48:52.58 (81.7019758, -20.8146049)
Updated RA, DEC: 05:26:48.500, -20:48:52.24 (81.7020816539, -20.8145111365)

TNS
System

Sat, 12/13/2025 - 10:05

Object coordinates updated

Object coordinates updated according to AT-report 280328 of Group ZTF
Previous RA, DEC: 05:26:48.428, -20:48:52.35 (81.701782, -20.814543)
Updated RA, DEC: 05:26:48.474, -20:48:52.58 (81.7019758, -20.8146049)