RA/DEC (2000)
05:44:44.218 +16:48:49.23
86.18424 +16.813676
Type
SN Ia
Redshift
0.01951
Discovery ReportClassification Report
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-08-08 05:16:30.720
TNS AT
Y
Public
Y
Discovery Mag
16.75
Filter
L-GOTO
Reporter/s
A. Kumar, 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, M. Pursiainen, on behalf of GOTO collaboration
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025tji - 2025-08-23 04:45:46 LT / SPRAT (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

 ▌GOTO-N_GOTO-2_L
 ▌ATLAS-CHL_ATLAS-04_orange
 ▌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
21849 2025-08-23 04:45:46 LT / SPRAT Robotic GOTO tns_2025tji_2025-08-23_04-45-46.339_LT_SPRAT_GOTO.dat Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-N_GOTO-2 2025-03-10 22:08:03 - 2025-08-08 05:16:31 2460745.422261 - 2460895.719798 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
507808 2025-08-08 05:16:31 2460895.719798 16.75 0.08 ABMag L-GOTO GOTO-N_GOTO-2 270
507807 2025-03-10 22:08:03 2460745.422261 19 ABMag L-GOTO GOTO-N_GOTO-2 360 [Last non detection]
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-04-21 23:38:54 - 2025-04-21 23:38:54 2460787.48535 - 2460787.48535 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
507989 2025-04-21 23:38:54 2460787.48535 18.55 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-08-10 14:33:31 - 2025-08-10 14:33:31 2460898.10661 - 2460898.10661 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
507990 2025-08-10 14:33:31 2460898.10661 16.931 0.065 18.23 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
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
265361 2025-08-10 21:55:58 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 05:44:44.218 +16:48:49.23 2025-08-10 14:33:31.104 16.931 orange-ATLAS PSN ATLAS25jfe ATLAS N
265230 2025-08-08 08:36:54 GOTO_bot A. Kumar,D. O'Neill,K. Ackley et al. GOTO GOTO 05:44:44.205 +16:48:49.49 2025-08-08 05:16:30.720 16.75 L-GOTO Other GOTO25fsc GOTO 2025TNSTR3112....1K N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
21849 2025-08-23 12:09:56 Miika Pursiainen M. Pursiainen, D. O'Neill, J. Lyman, G. Ramsay, B. Warwick, K. Ackley, M. Dyer, F. Jiménez-Ibarra, K. Ulaczyk, D. Steeghs, D. Galloway, V. Dhillon, P. O'Brien, K. Noysena, R. Kotak, R. Breton, L. Nuttall, E. Pallé, D. Pollacco, T. Killestein, A. Kumar on behalf of GOTO collaboration GOTO SN Ia 0.01951 1 GOTO Type Ia at the redshift of the host (NED). 2025TNSCR3345....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
21849 2025-08-23 04:45:46 LT / SPRAT Robotic GOTO tns_2025tji_2025-08-23_04-45-46.339_LT_SPRAT_GOTO.dat Object

Comments

TNS
System

Sun, 08/10/2025 - 21:55

Object coordinates updated

Object coordinates updated according to AT-report 265361 of Group ATLAS
Previous RA, DEC: 05:44:44.205, +16:48:49.49 (86.184188, +16.813748)
Updated RA, DEC: 05:44:44.218, +16:48:49.23 (86.18424, +16.813676)