RA/DEC (2000)
06:42:39.340 -29:05:50.19
100.663917778 -29.0972744444
Type
SN Ia
Redshift
0.045
Discovery ReportClassification Report
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-10-01 16:00:14.976
TNS AT
Y
Public
Y
Discovery Mag
19.98
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_2025zji - 2025-10-09 00:00:00 LT / SPRAT (TCD)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
z-step:   v-step: 
   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-HKO_ATLAS-02_orange
 ▌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
22197 2025-10-09 00:00:00 LT / SPRAT 1200 Cillian O'Donnell, Kate Maguire, Umut Burgaz, Christine Collins, Ravi Seth, CG Touchard-Paxton, Jacobus Terwel, Thomas Muller Br Cillian O'Donnell TCD tns_2025zji_2025-10-09_LT_SPRAT_TCD.text Object ~peak
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-09-23 16:33:23 - 2025-09-23 16:33:23 2460942.189848 - 2460942.189848 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
521726 2025-09-23 16:33:23 2460942.189848 19.7 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
L-GOTO GOTO-S_GOTO-3 2025-10-01 16:00:15 - 2025-10-01 16:00:15 2460950.166845 - 2460950.166845 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
521727 2025-10-01 16:00:15 2460950.166845 19.98 0.19 ABMag L-GOTO GOTO-S_GOTO-3 360
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-10-04 14:02:31 - 2025-10-04 14:02:31 2460953.08508 - 2460953.08508 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
522268 2025-10-04 14:02:31 2460953.08508 18.595 0.122 19.2 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
cyan-ATLAS ATLAS-HKO_ATLAS-02 2025-10-03 13:43:24 - 2025-10-03 13:43:24 2460952.07181 - 2460952.07181 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
522267 2025-10-03 13:43:24 2460952.07181 18.79 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
272500 2025-10-05 01:42:19 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 06:42:39.340 -29:05:50.19 2025-10-04 14:02:30.912 18.595 orange-ATLAS PSN ATLAS25mju ATLAS N
272253 2025-10-01 19:02:39 GOTO_bot D. O'Neill, K. Ackley, M. Dyer et al. GOTO GOTO 06:42:39.307 -29:05:50.35 2025-10-01 16:00:14.976 19.98 L-GOTO Other GOTO25idz GOTO 2025TNSTR3944....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
22197 2025-10-12 20:46:54 Cillian O'Donnell Cillian O'Donnell, Kate Maguire, Umut Burgaz, Christine Collins, Ravi Seth, CG Touchard-Paxton, Jacobus Terwel, Thomas Muller Bravo TCD SN Ia 0.045 1 TCD snid classification and redshift 2025TNSCR4091....1O
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
22197 2025-10-09 00:00:00 LT / SPRAT 1200 Cillian O'Donnell, Kate Maguire, Umut Burgaz, Christine Collins, Ravi Seth, CG Touchard-Paxton, Jacobus Terwel, Thomas Muller Br Cillian O'Donnell TCD tns_2025zji_2025-10-09_LT_SPRAT_TCD.text Object ~peak

Comments

TNS
System

Sun, 10/05/2025 - 01:42

Object coordinates updated

Object coordinates updated according to AT-report 272500 of Group ATLAS
Previous RA, DEC: 06:42:39.307, -29:05:50.35 (100.663781, -29.09732)
Updated RA, DEC: 06:42:39.340, -29:05:50.19 (100.663917778, -29.0972744444)