RA/DEC (2000)
22:58:20.052 +02:17:36.04
344.583551015 +2.29334412461
Type
SN II
Redshift
0.016155
Discovery ReportClassification Report
Related AstroNotes: 2025-275
Reporting Group
SGLF
Discovering Data Source
ZTF
Discovery Date
2025-08-29 08:28:00.000
TNS AT
Y
Public
Y
Host Name
UGC 12271
Host Redshift
0.016155
Discovery Mag
19.635
Filter
g-ZTF
Reporter/s
I. Pérez-Fournon (IAC and ULL), B. Armas-Chinea, D. Cano-Morales, I. Correa-Plasencia, A.E. Hernández-Díaz, M. Quintana-Ansaldo E. Lekaroz-Urriza (ULL), F. Poidevin (IAC and ULL), C. Jiménez Ángel (GRANTECAN), R. Shirley (MPE), R. Marques-Chaves (Univ. of Geneva), and S. Geier (GRANTECAN & IAC) on behalf of SGLF
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025wej - 2025-08-30 03:27:21 NOT / ALFOSC (GOTO)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
 ▌LAST_LAST-Cam_Clear
 ▌PS2_GPC2_w
 ▌ATLAS-STH_ATLAS-03_cyan
 ▌GOTO-N_GOTO-1_L
 ▌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
21913 2025-08-30 03:27:21 NOT / ALFOSC M. Pursiainen, I. Worssam M. Pursiainen, I. Worssam GOTO tns_2025wej_2025-08-30_03-27-20.943_NOT_ALFOSC_GOTO.dat Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2025-08-22 04:16:06 - 2025-08-22 04:16:06 2460909.67785 - 2460909.67785 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
514202 2025-08-22 04:16:06 2460909.67785 19.48 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot [Last non detection]
Clear- LAST_LAST-Cam 2024-07-04 22:46:52 - 2025-09-22 17:19:54 2460496.44921 - 2460941.22215 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
519195 2025-09-22 17:19:54 2460941.22215 19.39 ABMag Clear- LAST_LAST-Cam 400
519194 2024-07-04 22:46:52 2460496.44921 21.87 ABMag Clear- LAST_LAST-Cam 6340 [Last non detection]
w-P1 PS2_GPC2 2025-09-01 09:45:05 - 2025-09-01 09:45:05 2460919.90631 - 2460919.90631 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
516952 2025-09-01 09:45:05 2460919.90631 19.13 0.06 22 ABMag w-P1 PS2_GPC2 45 Robot
cyan-ATLAS ATLAS-STH_ATLAS-03 2025-08-30 00:35:54 - 2025-08-30 00:35:54 2460917.52493 - 2460917.52493 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
514203 2025-08-30 00:35:54 2460917.52493 19.125 0.162 19.62 ABMag cyan-ATLAS ATLAS-STH_ATLAS-03 30 Robot
L-GOTO GOTO-N_GOTO-1 2025-08-28 23:59:30 - 2025-08-29 23:53:42 2460916.499648 - 2460917.495633 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
514119 2025-08-29 23:53:42 2460917.495633 19.46 0.12 ABMag L-GOTO GOTO-N_GOTO-1 180
514118 2025-08-28 23:59:30 2460916.499648 20 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
g-ZTF P48_ZTF-Cam 2025-08-26 07:50:02 - 2025-08-29 08:28:00 2460913.826412 - 2460916.8527778 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
513798 2025-08-29 08:28:00 2460916.8527778 19.635 0.14 ABMag g-ZTF P48_ZTF-Cam 30 ZTFbot
513797 2025-08-26 07:50:02 2460913.826412 20.495 ABMag g-ZTF P48_ZTF-Cam 30 ZTFbot [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
270963 2025-09-22 18:50:05 LAST_Bot1 E. O. Ofek (WIS),R. Konno (WIS),E. A. Zimmerman (WIS) et al. LAST LAST 22:58:20.040 +02:17:35.90 2025-09-22 17:19:53.760 19.39 Clear- PSN LAST N
269946 2025-09-14 13:25:39 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 22:58:20.052 +02:17:36.04 2025-09-01 09:45:05.184 19.13 w-P1 PSN PS25hlv Pan-STARRS N
268609 2025-08-30 09:51:17 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 22:58:20.075 +02:17:35.85 2025-08-30 00:35:53.952 19.125 cyan-ATLAS PSN ATLAS25ktw ATLAS N
268572 2025-08-30 06:40:48 GOTO_bot M. Pursiainen,G. Ramsay,K. Ackley et al. GOTO GOTO 22:58:20.041 +02:17:35.92 2025-08-29 23:53:42.432 19.46 L-GOTO Other GOTO25gns GOTO N
268404 2025-08-29 11:02:40 Ismael Perez-Fournon I. Pérez-Fournon (IAC and ULL),B. Armas-Chinea,D. Cano-Morales et al. SGLF ZTF 22:58:20.052 +02:17:36.02 2025-08-29 08:28:00.000 19.635 g-ZTF PSN UGC 12271 ZTF25abmtjsr ZTF SN candidate discovered using the public ZTF alerts, the LSST/ZTF brokers, and our SGLF filters. ZTF light curve available at the LSST/ZTF brokers, e.g.: https://alerce.online/object/ZTF25abmtjsr 2025TNSTR3440....1P N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
21913 2025-08-30 08:46:21 Joe Lyman M. Pursiainen, I. Worssam, D. O'Neill, J. Lyman, T. Killestein, K. Ackley, M. Dyer, K. Ulaczyk, D. Steeghs, D. Galloway, V. Dhillon, P. O'Brien, G. Ramsay, K. Noysena, R. Kotak, R. Breton, J. Casares, L. Nuttall, B. Godson, A. Kumar on behalf of GOTO collaboration GOTO SN II 0.016155 1 GOTO Matches to young SN II. A bump around 4600A is consistent with the typical flash-ionised emission from N/C in young SN II. Strong galaxy lines contaminate the spectrum. Redshift from host (NED) 2025TNSCR3464....1P
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
21913 2025-08-30 03:27:21 NOT / ALFOSC M. Pursiainen, I. Worssam M. Pursiainen, I. Worssam GOTO tns_2025wej_2025-08-30_03-27-20.943_NOT_ALFOSC_GOTO.dat Object

Comments

TNS
System

Sun, 09/14/2025 - 13:25

Object coordinates updated

Object coordinates updated according to AT-report 269946 of Group Pan-STARRS
Previous RA, DEC: 22:58:20.052, +02:17:36.02 (344.58355, +2.293339)
Updated RA, DEC: 22:58:20.052, +02:17:36.04 (344.583551015, +2.29334412461)