RA/DEC (2000)
09:23:17.318 -27:53:45.38
140.8221591 -27.8959375
Type
SN Ia
Redshift
0.03
Discovery ReportClassification Report
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-11-10 15:37:36.768
TNS AT
Y
Public
Y
Discovery Mag
17.83
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_2025acxu - 2025-12-08 09:53:23 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-S_GOTO-4_L
 ▌GOTO-S_GOTO-3_L
 ▌ATLAS-CHL_ATLAS-04_orange
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌ATLAS-HKO_ATLAS-02_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
22533 2025-12-08 09:53:23 P60 / SEDM 2160 SEDmRobot auto ZTF tns_2025acxu_2025-12-08_09-53-23.397968_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-10-22 17:33:45 - 2025-10-22 17:33:45 2460971.231774 - 2460971.231774 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
530079 2025-10-22 17:33:45 2460971.231774 19.1 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
L-GOTO GOTO-S_GOTO-3 2025-11-10 15:37:37 - 2025-11-10 15:37:37 2460990.151125 - 2460990.151125 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
530080 2025-11-10 15:37:37 2460990.151125 17.83 0.1 ABMag L-GOTO GOTO-S_GOTO-3 360
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-11-11 07:46:19 - 2025-11-11 07:46:19 2460990.82383 - 2460990.82383 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
530480 2025-11-11 07:46:19 2460990.82383 17.833 0.084 18.84 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
r-ZTF P48_ZTF-Cam 2025-12-06 12:34:48 - 2025-12-06 12:34:48 2461016.0241667 - 2461016.0241667 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
536387 2025-12-06 12:34:48 2461016.0241667 17.5216 0.0579451 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2025-12-06 12:02:10 - 2025-12-06 12:02:10 2461016.0015046 - 2461016.0015046 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
536386 2025-12-06 12:02:10 2461016.0015046 17.6724 0.056782 ABMag g-ZTF P48_ZTF-Cam
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-11-08 14:15:40 - 2025-11-08 14:15:40 2460988.09421 - 2460988.09421 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
530479 2025-11-08 14:15:40 2460988.09421 18.56 ABMag orange-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
279493 2025-12-06 13:44:49 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 09:23:17.318 -27:53:45.38 2025-12-06 12:02:09.997 17.6724 g-ZTF PSN ZTF25acgcdtb ZTF N
276417 2025-11-12 10:35:12 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 09:23:17.309 -27:53:45.39 2025-11-11 07:46:18.912 17.833 orange-ATLAS PSN ATLAS25occ ATLAS N
276232 2025-11-10 16:55:43 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 09:23:17.312 -27:53:45.37 2025-11-10 15:37:36.768 17.83 L-GOTO Other GOTO25jty GOTO 2025TNSTR4507....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
22532 2025-12-08 11:16:03 ZTF_Bot1 J. Sollerman, S. Covarrubias, M. Chu, C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) ZTF SN Ia 0.03 1 ZTF 2025TNSCR4889....1S
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
22533 2025-12-08 09:53:23 P60 / SEDM 2160 SEDmRobot auto ZTF tns_2025acxu_2025-12-08_09-53-23.397968_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Sat, 12/06/2025 - 13:44

Object coordinates updated

Object coordinates updated according to AT-report 279493 of Group ZTF
Previous RA, DEC: 09:23:17.309, -27:53:45.39 (140.822121905, -27.8959414286)
Updated RA, DEC: 09:23:17.318, -27:53:45.38 (140.8221591, -27.8959375)

TNS
System

Wed, 11/12/2025 - 10:35

Object coordinates updated

Object coordinates updated according to AT-report 276417 of Group ATLAS
Previous RA, DEC: 09:23:17.312, -27:53:45.37 (140.822132, -27.895937)
Updated RA, DEC: 09:23:17.309, -27:53:45.39 (140.822121905, -27.8959414286)