RA/DEC (2000)
02:40:21.232 -13:10:50.64
40.0884670138 -13.1807343504
Type
SN IIn
Redshift
0.096
Discovery ReportClassification Report
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2025-12-08 05:25:07.003
TNS AT
Y
Public
Y
Discovery Mag
20.3652
Filter
r-ZTF
Reporter/s
Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU), Theophile du Laz (Caltech) on behalf of ZTF
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025agmo - 2025-12-24 00:00:00 SOAR / Goodman (ZTF)z=
 ▌SN_2025agmo - 2025-12-24 00:00:00 SOAR / Goodman (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
 ▌BG3_BlackGEM-Cam3_BG-q
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌ATLAS-MLO_ATLAS-01_cyan
 ▌ATLAS-HKO_ATLAS-02_orange
 ▌PS1_GPC1_i
   
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
22737 2025-12-24 00:00:00 SOAR / Goodman Jonathan Carney (UNC), , Akash Anumarlapudi (UNC), Igor Andreoni (UNC), James Freeburn (Sydney) Jonathan Carney (UNC) ZTF tns_2025agmo_2025-12-24_00-00-00_SOAR_Goodman_ZTF.ascii Object
22688 2025-12-24 00:00:00 SOAR / Goodman Jonathan Carney (UNC), , Akash Anumarlapudi (UNC), Igor Andreoni (UNC), James Freeburn (Swinn) ZTF tns_2025agmo_2025-12-24_SOAR_Goodman_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-3 2025-12-05 11:10:15 - 2025-12-08 11:20:42 2461014.965448 - 2461017.972709 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
540021 2025-12-08 11:20:42 2461017.972709 20.18 0.19 ABMag L-GOTO GOTO-S_GOTO-3 180
540020 2025-12-05 11:10:15 2461014.965448 19.3 ABMag L-GOTO GOTO-S_GOTO-3 180 [Last non detection]
BG-q-BlackGem BG3_BlackGEM-Cam3 2025-12-11 02:51:41 - 2025-12-12 02:48:45 2461020.6192245 - 2461021.6171875 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
539534 2025-12-12 02:48:45 2461021.6171875 19.76 0.12 20.82 ABMag BG-q-BlackGem BG3_BlackGEM-Cam3 60 robotic
539533 2025-12-11 02:51:41 2461020.6192245 20.21 ABMag BG-q-BlackGem BG3_BlackGEM-Cam3 60 robotic [Last non detection]
r-ZTF P48_ZTF-Cam 2025-12-07 05:30:11 - 2025-12-08 05:25:07 2461016.729294 - 2461017.7257755 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
537933 2025-12-08 05:25:07 2461017.7257755 20.3652 0.170377 ABMag r-ZTF P48_ZTF-Cam
537932 2025-12-07 05:30:11 2461016.729294 19.2461 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2025-12-12 06:36:14 - 2025-12-12 06:36:14 2461021.775162 - 2461021.775162 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
537934 2025-12-12 06:36:14 2461021.775162 19.5492 0.15143 ABMag g-ZTF P48_ZTF-Cam
cyan-ATLAS ATLAS-MLO_ATLAS-01 2025-12-13 09:16:27 - 2025-12-13 09:16:27 2461022.88642 - 2461022.88642 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
538955 2025-12-13 09:16:27 2461022.88642 19.5 ABMag cyan-ATLAS ATLAS-MLO_ATLAS-01 30 Robot [Last non detection]
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-12-14 08:25:17 - 2025-12-14 08:25:17 2461023.85089 - 2461023.85089 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
538956 2025-12-14 08:25:17 2461023.85089 19.085 0.173 19.38 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
i-P1 PS1_GPC1 2026-01-01 06:49:37 - 2026-01-01 06:49:37 2461041.78446 - 2461041.78446 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
546980 2026-01-01 06:49:37 2461041.78446 18.41 0.06 20.7 ABMag i-P1 PS1_GPC1 45 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
285654 2026-01-02 11:58:31 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 02:40:21.232 -13:10:50.64 2026-01-01 06:49:37.344 18.41 i-P1 PSN PS26i Pan-STARRS N
281119 2025-12-18 08:42:51 GOTO_bot D. O'Neill,G. Ramsay,K. Ackley et al. GOTO GOTO 02:40:21.237 -13:10:50.44 2025-12-08 11:20:42.144 20.18 L-GOTO Other GOTO25lrx GOTO N
280910 2025-12-17 06:38:02 BlackGEM_Bot1 G. Ramsay,H. Tranin,F. Stoppa et al. BlackGEM BlackGEM 02:40:21.224 -13:10:50.99 2025-12-12 02:48:45.000 19.76 BG-q-BlackGem PSN BGEM J024021.22-131051.0 BlackGEM N
280651 2025-12-14 23:38:34 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland (IfA et al. ATLAS ATLAS 02:40:21.241 -13:10:50.95 2025-12-14 08:25:16.896 19.085 orange-ATLAS PSN ATLAS25ptd ATLAS N
280185 2025-12-12 07:13:48 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 02:40:21.218 -13:10:50.37 2025-12-08 05:25:07.003 20.3652 r-ZTF PSN ZTF25acgorke ZTF 2025TNSTR4942....1S N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
22736 2026-01-06 23:05:45 Jonathan Carney Jonathan Carney (UNC), Akash Anumarlapudi (UNC), James Freeburn (Sydney), Igor Andreoni (UNC), Robert Stein (UMD), Itai Sfaradi (Berkeley) ZTF SN IIn 0.096 1 ZTF Classification by SNID. Typo for redshift in previous report. 2026TNSCR..47....1C
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
22737 2025-12-24 00:00:00 SOAR / Goodman Jonathan Carney (UNC), , Akash Anumarlapudi (UNC), Igor Andreoni (UNC), James Freeburn (Sydney) Jonathan Carney (UNC) ZTF tns_2025agmo_2025-12-24_00-00-00_SOAR_Goodman_ZTF.ascii Object
22687 2025-12-26 17:47:43 Jonathan Carney Jonathan Carney (UNC), Akash Anumarlapudi (UNC), James Freeburn (Swinn), Igor Andreoni (UNC), Robert Stein (UMD), Itai Sfaradi (Berkeley) ZTF SN IIn 0.96 1 ZTF Classification by SNID 2025TNSCR5180....1C
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
22688 2025-12-24 00:00:00 SOAR / Goodman Jonathan Carney (UNC), , Akash Anumarlapudi (UNC), Igor Andreoni (UNC), James Freeburn (Swinn) ZTF tns_2025agmo_2025-12-24_SOAR_Goodman_ZTF.ascii Object

Comments

TNS
System

Fri, 01/02/2026 - 11:58

Object coordinates updated

Object coordinates updated according to AT-report 285654 of Group Pan-STARRS
Previous RA, DEC: 02:40:21.218, -13:10:50.37 (40.0884089, -13.1806594)
Updated RA, DEC: 02:40:21.232, -13:10:50.64 (40.0884670138, -13.1807343504)

Andrea
Reguitti

Sat, 12/27/2025 - 10:25

Wrong z

The classifiers reported a wrong redshift, the correct value is z=0.096.