RA/DEC (2000)
08:27:51.273 +56:04:17.79
126.963636459 +56.0716089012
Type
SN Ia
Redshift
0.041
Discovery ReportClassification Report
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2025-09-30 10:47:28.999
TNS AT
Y
Public
Y
Discovery Mag
19.4197
Filter
g-ZTF
Reporter/s
Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU), Theophile du Laz (Caltech) on behalf of ZTF
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025yyj - 2025-10-06 10:55:08 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
 ▌PS2_GPC2_i
 ▌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
22160 2025-10-06 10:55:08 P60 / SEDM 2700 SEDmRobot auto ZTF tns_2025yyj_2025-10-06_10-55-07.801819_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2025-10-01 04:23:46 - 2025-10-01 04:23:46 2460949.68317 - 2460949.68317 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
521447 2025-10-01 04:23:46 2460949.68317 18.888 0.09 19.71 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot
g-WFST WFST_WFST-WFC 2025-10-30 19:16:19 - 2025-10-30 19:16:19 2460979.303 - 2460979.303 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
568222 2025-10-30 19:16:19 2460979.303 18.43 0.01 ABMag g-WFST WFST_WFST-WFC 30
L-GOTO GOTO-N_GOTO-2 2025-06-08 21:34:47 - 2025-10-03 05:01:02 2460835.399148 - 2460951.709052 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
522130 2025-10-03 05:01:02 2460951.709052 18.48 0.07 ABMag L-GOTO GOTO-N_GOTO-2 180
522129 2025-06-08 21:34:47 2460835.399148 18.7 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
i-P1 PS2_GPC2 2025-12-04 11:36:05 - 2025-12-04 11:36:05 2461013.98339 - 2461013.98339 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
542242 2025-12-04 11:36:05 2461013.98339 19.49 0.19 20.7 ABMag i-P1 PS2_GPC2 45 Robot
r-ZTF P48_ZTF-Cam 2025-09-25 12:10:35 - 2025-09-30 11:52:37 2460944.0073495 - 2460948.9948727 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
521139 2025-09-30 11:52:37 2460948.9948727 19.4335 0.097366 ABMag r-ZTF P48_ZTF-Cam
521137 2025-09-25 12:10:35 2460944.0073495 20.9927 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2025-09-30 10:47:29 - 2025-09-30 10:47:29 2460948.9496412 - 2460948.9496412 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
521138 2025-09-30 10:47:29 2460948.9496412 19.4197 0.116538 ABMag g-ZTF P48_ZTF-Cam
522586 2025-09-30 10:47:29 2460948.9496412 19.4197 0.116538 20.4651 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF, classified by Fink
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-09-30 15:19:25 - 2025-09-30 15:19:25 2460949.13848 - 2460949.13848 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
521446 2025-09-30 15:19:25 2460949.13848 18.55 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 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
296380 2026-03-20 10:34:52 WFST_SN Zelin Xu, Dezheng Meng, Ji-an Jiang et al. WFST WFST 08:27:51.270 +56:04:17.95 2025-10-30 19:16:19.200 18.43 g-WFST PSN WFST251028bzwqk WFST N
282122 2025-12-23 22:55:28 PS1_Bot1 K. C. Chambers, T. de Boer, J. Fairlamb et al. Pan-STARRS Pan-STARRS 08:27:51.273 +56:04:17.79 2025-12-04 11:36:04.896 19.49 i-P1 PSN PS25isa Pan-STARRS N
272645 2025-10-08 18:16:34 Fink Julien Peloton, Anais Moller, Emille E. O. Ishida on behalf of the Fink broker Fink ZTF 08:27:51.274 +56:04:17.86 2025-09-30 10:47:29.000 19.4197 g-ZTF PSN ZTF25abuomiz ZTF Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF25abuomiz N
272429 2025-10-03 17:30:38 GOTO_bot D. O'Neill, K. Ackley, M. Dyer et al. GOTO GOTO 08:27:51.289 +56:04:17.95 2025-10-03 05:01:01.920 18.48 L-GOTO Other GOTO25ifk GOTO N
272137 2025-10-01 08:23:31 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 08:27:51.336 +56:04:17.96 2025-10-01 04:23:45.888 18.888 wide-ATLAS PSN ATLAS25mgh ATLAS N
271890 2025-09-30 16:58:53 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 08:27:51.283 +56:04:17.99 2025-09-30 10:47:28.999 19.4197 g-ZTF PSN ZTF25abuomiz ZTF 2025TNSTR3934....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
22160 2025-10-06 11:47:44 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 0.041 1 ZTF 2025TNSCR4024....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
22160 2025-10-06 10:55:08 P60 / SEDM 2700 SEDmRobot auto ZTF tns_2025yyj_2025-10-06_10-55-07.801819_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Tue, 12/23/2025 - 22:55

Object coordinates updated

Object coordinates updated according to AT-report 282122 of Group Pan-STARRS
Previous RA, DEC: 08:27:51.274, +56:04:17.86 (126.96364197778, +56.071627255556)
Updated RA, DEC: 08:27:51.273, +56:04:17.79 (126.963636459, +56.0716089012)

TNS
System

Wed, 10/08/2025 - 18:16

Object coordinates updated

Object coordinates updated according to AT-report 272645 of Group ZTF
Previous RA, DEC: 08:27:51.283, +56:04:17.99 (126.9636809, +56.0716635)
Updated RA, DEC: 08:27:51.274, +56:04:17.86 (126.96364197778, +56.071627255556)