RA/DEC (2000)
20:26:29.148 -57:19:14.21
306.62145 -57.32061375
Type
SN Ia
Redshift
0.0574
Related AstroNotes: 2025-215
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-07-08 15:02:13.056
TNS AT
Y
Public
Y
Discovery Mag
18.16
Filter
L-GOTO
Reporter/s
A. Kumar, 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, D. O'Neill, M. Pursiainen, on behalf of GOTO collaboration

Spectra

 SN_2025qpo - 2025-07-16 10:07:13 ESO-NTT / EFOSC2-NTT (ePESSTO+)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
 ATLAS-CHL_ATLAS-04_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
21544 2025-07-16 10:07:13 ESO-NTT / EFOSC2-NTT 600 J. Quirola-Vasquez, J. Sanchez-Sierras U. Burgaz, J.H. Terwel ePESSTO+ tns_2025qpo_2025-07-16_10-07-13_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025qpo_2025-07-16_10-07-13_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-06-29 13:57:12 - 2025-07-08 15:02:13 2460856.081394 - 2460865.126543 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
501454 2025-07-08 15:02:13 2460865.126543 18.16 0.13 ABMag L-GOTO GOTO-S_GOTO-4 180
501453 2025-06-29 13:57:12 2460856.081394 19.9 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-07-05 10:38:01 - 2025-07-08 03:51:59 2460861.94307 - 2460864.6611 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
503132 2025-07-08 03:51:59 2460864.6611 18.091 0.152 18.54 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
503131 2025-07-05 10:38:01 2460861.94307 17.71 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 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
262829 2025-07-17 19:08:13 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 20:26:29.148 -57:19:14.21 2025-07-08 03:51:59.040 18.091 orange-ATLAS PSN ATLAS25hsp ATLAS N
261850 2025-07-08 15:55:19 GOTO_bot A. Kumar,K. Ackley,M. Dyer et al. GOTO GOTO 20:26:29.119 -57:19:13.94 2025-07-08 15:02:13.056 18.16 L-GOTO Other GOTO25eqw GOTO 2025TNSTR2611....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
21544 2025-07-17 07:33:51 ePESSTOplus_Bot1 J. Quirola-Vasquez, J. Sanchez-Sierras, U. Burgaz, J.H. Terwel, A. Horowicz on behalf of ePESSTO+ ePESSTO+ SN Ia 0.0574 1 ePESSTO+ 2025TNSCR2747....1Q
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
21544 2025-07-16 10:07:13 ESO-NTT / EFOSC2-NTT 600 J. Quirola-Vasquez, J. Sanchez-Sierras U. Burgaz, J.H. Terwel ePESSTO+ tns_2025qpo_2025-07-16_10-07-13_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025qpo_2025-07-16_10-07-13_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 262829 of Group ATLAS
Previous RA, DEC: 20:26:29.119, -57:19:13.94 (306.621328, -57.320538)
Updated RA, DEC: 20:26:29.148, -57:19:14.21 (306.62145, -57.32061375)