RA/DEC (2000)
18:57:05.327 -62:18:38.55
284.272196 -62.310708
Type
SN II
Redshift
0.013
Related AstroNotes: 2025-177
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-06-04 19:07:43.392
TNS AT
Y
Public
Y
Discovery Mag
17.29
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

Spectra

 SN_2025mxg - 2025-06-06 02:56:31 Magellan-Clay / LDSS-3 (None)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
 ATLAS-CHL_ATLAS-04_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
21273 2025-06-06 02:56:31 Magellan-Clay / LDSS-3 Emilio Hueichapan Regis Cartier None tns_2025mxg_2025-06-06_02-56-31_Magellan-Clay_LDSS-3_None.txt tns_2025mxg_2025-06-06_02-56-31_Magellan-Clay_LDSS-3_None.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-05-23 15:04:06 - 2025-06-04 19:07:43 2460819.127852 - 2460831.297032 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
493627 2025-06-04 19:07:43 2460831.297032 17.29 0.03 ABMag L-GOTO GOTO-S_GOTO-4 180
493626 2025-05-23 15:04:06 2460819.127852 19.4 ABMag L-GOTO GOTO-S_GOTO-4 270 [Last non detection]
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-07-16 05:02:40 - 2025-07-16 05:02:40 2460872.71019 - 2460872.71019 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
503671 2025-07-16 05:02:40 2460872.71019 18.99 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
cyan-ATLAS ATLAS-CHL_ATLAS-04 2025-07-20 03:54:42 - 2025-07-20 03:54:42 2460876.66299 - 2460876.66299 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
503672 2025-07-20 03:54:42 2460876.66299 17.11 0.055 19.45 ABMag cyan-ATLAS ATLAS-CHL_ATLAS-04 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
263086 2025-07-20 16:48:57 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 18:57:05.327 -62:18:38.55 2025-07-20 03:54:42.336 17.11 cyan-ATLAS PSN ATLAS25hyk ATLAS N
257766 2025-06-04 21:53:17 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 18:57:05.307 -62:18:38.85 2025-06-04 19:07:43.392 17.29 L-GOTO Other GOTO25dhb GOTO 2025TNSTR2092....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
21273 2025-06-09 17:52:11 Emilio Hueichapan Emilio Hueichapan (UDP), Regis Cartier (UA), José Prieto (UDP) None SN II 0.013 1 2025TNSCR2163....1H
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
21273 2025-06-06 02:56:31 Magellan-Clay / LDSS-3 Emilio Hueichapan Regis Cartier None tns_2025mxg_2025-06-06_02-56-31_Magellan-Clay_LDSS-3_None.txt tns_2025mxg_2025-06-06_02-56-31_Magellan-Clay_LDSS-3_None.fits Object

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 263086 of Group ATLAS
Previous RA, DEC: 18:57:05.307, -62:18:38.85 (284.272114, -62.310792)
Updated RA, DEC: 18:57:05.327, -62:18:38.55 (284.272196, -62.310708)