RA/DEC (2000)
08:27:07.491 +22:50:30.77
126.7812142 +22.8418804
Type
SN Ia
Redshift
0.022772
Discovery ReportClassification Report
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-09-14 05:43:54.912
TNS AT
Y
Public
Y
Discovery Mag
18.52
Filter
L-GOTO
Reporter/s
D. O'Neill, K. Ackley, M. Dyer, J. Lyman, 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, T. Killestein, A. Kumar, M. Pursiainen, on behalf of GOTO collaboration
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025ytj - 2025-10-02 10:22:18 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

 ▌GOTO-N_GOTO-2_L
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌ATLAS-HKO_ATLAS-02_cyan
   
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
22141 2025-10-02 10:22:18 P60 / SEDM 2700 SEDmRobot ZTF tns_2025ytj_2025-10-02_10-22-17.957326_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-N_GOTO-2 2025-05-15 21:00:49 - 2025-09-14 05:43:55 2460811.375571 - 2460932.73883 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
520538 2025-09-14 05:43:55 2460932.73883 18.52 0.21 ABMag L-GOTO GOTO-N_GOTO-2 90
520537 2025-05-15 21:00:49 2460811.375571 18.1 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
r-ZTF P48_ZTF-Cam 2025-09-16 12:26:02 - 2025-09-30 12:20:59 2460935.0180787 - 2460949.0145718 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
521106 2025-09-30 12:20:59 2460949.0145718 18.324 0.0830947 ABMag r-ZTF P48_ZTF-Cam
521104 2025-09-16 12:26:02 2460935.0180787 19.7327 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2025-09-30 11:20:03 - 2025-09-30 11:20:03 2460948.9722569 - 2460948.9722569 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
521105 2025-09-30 11:20:03 2460948.9722569 19.1693 0.139087 ABMag g-ZTF P48_ZTF-Cam
cyan-ATLAS ATLAS-HKO_ATLAS-02 2025-09-23 15:12:28 - 2025-09-25 14:46:08 2460942.13366 - 2460944.11537 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
521683 2025-09-25 14:46:08 2460944.11537 18.458 0.117 19.1 ABMag cyan-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
521682 2025-09-23 15:12:28 2460942.13366 19.03 ABMag cyan-ATLAS ATLAS-HKO_ATLAS-02 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
272231 2025-10-01 17:21:37 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 08:27:07.516 +22:50:31.41 2025-09-25 14:46:07.968 18.458 cyan-ATLAS PSN ATLAS25mhd ATLAS N
271876 2025-09-30 14:42:12 BTSbot_bot Nabeel Rehemtulla (CIERA,NU),Wynn Jacobson-Galán (Caltech) et al. ZTF ZTF 08:27:07.491 +22:50:30.77 2025-09-30 11:20:02.996 19.1693 g-ZTF PSN ZTF25abuoxbt ZTF Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167). N
271589 2025-09-28 08:48:52 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 08:27:07.536 +22:50:30.75 2025-09-14 05:43:54.912 18.52 L-GOTO Other GOTO25hwx GOTO 2025TNSTR3895....1O N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
22141 2025-10-02 22:14:56 ZTF_Bot1 J. Johansson, K. Das, A. Mehla, M. Kasliwal (Caltech) on behalf of the ZTF CATS150 collaboration ZTF SN Ia 0.022772 1 ZTF 2025TNSCR3973....1J
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
22141 2025-10-02 10:22:18 P60 / SEDM 2700 SEDmRobot ZTF tns_2025ytj_2025-10-02_10-22-17.957326_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Tue, 09/30/2025 - 14:42

Object coordinates updated

Object coordinates updated according to AT-report 271876 of Group ZTF
Previous RA, DEC: 08:27:07.536, +22:50:30.75 (126.781402, +22.841874)
Updated RA, DEC: 08:27:07.491, +22:50:30.77 (126.7812142, +22.8418804)