RA/DEC (2000)
11:46:03.750 +70:24:38.98
176.5156269 +70.4108267
Type
SN II
Redshift
0.0605
Related AstroNotes: 2025-98, 2025-102, 2025-115, 2025-125
Reporting Group
XOSS
Discovering Data Source
XOSS
Discovery Date
2025-03-19 18:06:59.040
TNS AT
Y
Public
Y
Discovery Mag
19.28
Filter
Clear-
Reporter/s
Ziyang Mai, Jianlin Xu, Mi Zhang, Guoyou Sun, Jiangao Ruan, Jingyuan Zhao, Wenjie Zhou, Yong Ma, Ye, Zhuoyang Chen (Xingming Obs.), Hanjie Tan (AUUK), Guangwei Wu (NAAA), Xing Gao, Ali Esamdin, Chunhai Bai, Yong Wang (XAO), on behalf of the KATS team

Spectra

 SN_2025fen - 2025-05-02 06:53:42 Lick-3m / KAST (ZTF)z=
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Show [Ca II] at z=vexp= km/s
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   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 LAST_LAST-Cam_Clear
 GOTO-N_GOTO-1_L
 P48_ZTF-Cam_g
 ATLAS-MLO_ATLAS-01_orange
 ATLAS-HKO_ATLAS-02_cyan
 Other_Other_Clear
   
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
20970 2025-05-02 06:53:42 Lick-3m / KAST R. Michael Rich, Ava Huddleston, Atticus Cummings, Jacob Wise Jacob Wise ZTF tns_2025fen_2025-05-02_06-53-42.49_Lick-3m_KAST_ZTF.txt Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
Clear- LAST_LAST-Cam 2024-03-03 23:16:53 - 2025-04-16 17:51:16 2460373.47006 - 2460782.24394 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
482400 2025-04-16 17:51:16 2460782.24394 19.24 ABMag Clear- LAST_LAST-Cam 400
482399 2024-03-03 23:16:53 2460373.47006 21.46 ABMag Clear- LAST_LAST-Cam 3120 [Last non detection]
L-GOTO GOTO-N_GOTO-1 2025-03-17 21:46:09 - 2025-03-21 01:18:55 2460752.407054 - 2460755.554796 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
480542 2025-03-21 01:18:55 2460755.554796 19.36 0.2 ABMag L-GOTO GOTO-N_GOTO-1 180
480541 2025-03-17 21:46:09 2460752.407054 19.3 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
g-ZTF P48_ZTF-Cam 2025-03-17 08:53:14 - 2025-03-22 08:15:58 2460751.8703009 - 2460756.8444213 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
477821 2025-03-22 08:15:58 2460756.8444213 18.8759 0.0935033 ABMag g-ZTF P48_ZTF-Cam
477820 2025-03-20 07:14:58 2460754.8020602 19.2108 0.109946 ABMag g-ZTF P48_ZTF-Cam
477819 2025-03-17 08:53:14 2460751.8703009 17.6584 ABMag g-ZTF P48_ZTF-Cam [Last non detection]
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-03-23 12:21:24 - 2025-03-23 12:21:24 2460758.01486 - 2460758.01486 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
478838 2025-03-23 12:21:24 2460758.01486 19.25 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot [Last non detection]
cyan-ATLAS ATLAS-HKO_ATLAS-02 2025-03-25 09:59:35 - 2025-03-25 09:59:35 2460759.91638 - 2460759.91638 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
478839 2025-03-25 09:59:35 2460759.91638 18.762 0.099 19.47 ABMag cyan-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
Clear- Other_Other 2025-03-19 18:06:59 - 2025-03-19 18:06:59 2460754.25485 - 2460754.25485 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
477694 2025-03-19 18:06:59 2460754.25485 19.28 0.21 19.5 VegaMag Clear- Other_Other 60 Xing Gao
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
251764 2025-04-16 18:59:47 LAST_Bot1 E. A. Zimmerman (WIS),R. Konno (WIS),A. Horowicz (WIS) et al. LAST LAST 11:46:03.741 +70:24:39.49 2025-04-16 17:51:16.416 19.24 Clear- PSN LAST N
250801 2025-04-04 07:28:56 GOTO_bot G. Ramsay,K. Ackley,M. Dyer et al. GOTO GOTO 11:46:03.760 +70:24:39.00 2025-03-21 01:18:54.720 19.36 L-GOTO Other GOTO25bog GOTO N
249868 2025-03-25 15:14:12 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 11:46:03.744 +70:24:38.79 2025-03-25 09:59:35.232 18.762 cyan-ATLAS PSN ATLAS25dbf ATLAS N
249330 2025-03-22 23:20:57 Fritz Eli Gendreau-Distler (UC Berkeley),Jesper Sollerman (SU),Christoffer Fremling (Caltech) et al. ZTF ZTF 11:46:03.750 +70:24:38.98 2025-03-20 07:14:58.001 19.2108 g-ZTF PSN ZTF25aajlyns ZTF N
249252 2025-03-22 13:41:18 Mi Zhang Ziyang Mai,Jianlin Xu,Mi Zhang et al. XOSS XOSS 11:46:03.720 +70:24:39.30 2025-03-19 18:06:59.040 19.28 Clear- Other KATS25F026 XOSS CV candidate classified by XOSS. Details can be found at http://xjltp.china-vo.org/kats25f026.html 2025TNSTR1089....1M N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
20970 2025-05-03 21:54:35 Jacob Wise Jacob Wise (LJMU), Daniel Perley (LJMU), Ava Huddleston (UCLA), Atticus Cummings (UCLA), R. Michael Rich (UCLA) ZTF SN II 0.0605 1 ZTF Spectrum is well-fit by template spectra from previously classified SN II at a redshift of z = 0.0605 ± 0.0025. Classification performed using Next Generation Superfit (NGSF, Goldwasser et al. 2022). 2025TNSCR1653....1W
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
20970 2025-05-02 06:53:42 Lick-3m / KAST R. Michael Rich, Ava Huddleston, Atticus Cummings, Jacob Wise Jacob Wise ZTF tns_2025fen_2025-05-02_06-53-42.49_Lick-3m_KAST_ZTF.txt Object

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 249330 of Group ZTF
Previous RA, DEC: 11:46:03.720, +70:24:39.30 (176.5155, +70.410917)
Updated RA, DEC: 11:46:03.750, +70:24:38.98 (176.5156269, 70.4108267)