RA/DEC (2000)
02:40:30.043 +36:24:30.88
40.125179 +36.4085774
Type
SN IIn
Redshift
0.05
Discovery ReportClassification Report
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-12-09 09:46:34.176
TNS AT
Y
Public
Y
Discovery Mag
19.04
Filter
orange-ATLAS
Reporter/s
J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), A. Jordan, V. Suc (UAI, Obstech), M. R. Alarcón, J. Licandro, P. Nichita (IAC), S. J. Smartt, K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, C. R. Angus, A. Wilson, A. Aamer, D. Magill, P. J. Broda, A. J. Smith (QUB), P. Ramsden (Birmingham/QUB), L. Shingles (GSI/QUB), S. Srivastav, J. H. Gillanders, H. Stevance, A. J. Cooper, F. Stoppa, J. Tweddle, L. Eastman (Oxford), L. Rhodes (TSI/McGill), A. Rest (STScI), T.-W. Chen (NCU), C. Stubbs (Harvard), J. S. Sommer (LMU), B. P. Schmidt (ANU)
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025agfz - 2025-12-12 04:23:01 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

 ▌ATLAS-TDO_ATLAS-05_wide
 ▌WFST_WFST-WFC_g
 ▌GOTO-N_GOTO-2_L
 ▌GOTO-N_GOTO-1_L
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌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
22573 2025-12-12 04:23:01 P60 / SEDM 2700 SEDmRobot ZTF tns_2025agfz_2025-12-12_04-23-01.356105_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2025-12-07 21:57:10 - 2025-12-07 21:57:10 2461017.4147 - 2461017.4147 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
537248 2025-12-07 21:57:10 2461017.4147 19.55 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot [Last non detection]
g-WFST WFST_WFST-WFC 2025-12-07 16:36:29 - 2025-12-07 16:36:29 2461017.192 - 2461017.192 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
567621 2025-12-07 16:36:29 2461017.192 19.52 0.02 ABMag g-WFST WFST_WFST-WFC 30
L-GOTO GOTO-N_GOTO-2 2025-12-10 22:34:22 - 2025-12-10 22:34:22 2461020.440528 - 2461020.440528 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
537314 2025-12-10 22:34:22 2461020.440528 18.76 0.07 ABMag L-GOTO GOTO-N_GOTO-2 180
L-GOTO GOTO-N_GOTO-1 2025-11-03 00:51:44 - 2025-11-03 00:51:44 2460982.535928 - 2460982.535928 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
537313 2025-11-03 00:51:44 2460982.535928 18.9 ABMag L-GOTO GOTO-N_GOTO-1 360 [Last non detection]
r-ZTF P48_ZTF-Cam 2025-11-28 06:27:43 - 2025-12-07 06:05:14 2461007.7692477 - 2461016.7536343 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
537350 2025-12-07 06:05:14 2461016.7536343 19.763 0.19827 ABMag r-ZTF P48_ZTF-Cam
537349 2025-11-28 06:27:43 2461007.7692477 20.3082 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2025-12-11 04:08:17 - 2025-12-11 04:08:17 2461020.672419 - 2461020.672419 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
537351 2025-12-11 04:08:17 2461020.672419 18.7799 0.110175 ABMag g-ZTF P48_ZTF-Cam
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-12-09 09:46:34 - 2025-12-09 09:46:34 2461018.90734 - 2461018.90734 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
537249 2025-12-09 09:46:34 2461018.90734 19.04 0.172 19.33 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 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
295998 2026-03-20 10:28:50 WFST_SN Zelin Xu, Dezheng Meng, Ji-an Jiang et al. WFST WFST 02:40:30.050 +36:24:30.73 2025-12-07 16:36:28.800 19.52 g-WFST PSN WFST251207audwb WFST N
279949 2025-12-11 04:58:04 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 02:40:30.043 +36:24:30.88 2025-12-07 06:05:14.003 19.763 r-ZTF PSN ZTF25acgggyl ZTF N
279933 2025-12-10 23:37:02 GOTO_bot D. O'Neill, K. Ackley, M. Dyer et al. GOTO GOTO 02:40:30.040 +36:24:30.55 2025-12-10 22:34:21.792 18.76 L-GOTO Other GOTO25llf GOTO N
279898 2025-12-10 14:13:04 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 02:40:30.057 +36:24:30.87 2025-12-09 09:46:34.176 19.04 orange-ATLAS PSN ATLAS25pla ATLAS 2025TNSTR4906....1T N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
22572 2025-12-13 00:39:25 ZTF_Bot1 J. Sollerman, J. Castaneda Jaimes, M. Chu, C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) ZTF SN IIn 0.05 1 ZTF 2025TNSCR4960....1S
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
22573 2025-12-12 04:23:01 P60 / SEDM 2700 SEDmRobot ZTF tns_2025agfz_2025-12-12_04-23-01.356105_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Thu, 12/11/2025 - 04:58

Object coordinates updated

Object coordinates updated according to AT-report 279949 of Group ZTF
Previous RA, DEC: 02:40:30.057, +36:24:30.87 (40.1252390909, +36.4085763636)
Updated RA, DEC: 02:40:30.043, +36:24:30.88 (40.125179, +36.4085774)