RA/DEC (2000)
08:23:13.630 -77:51:10.06
125.806793333 -77.8527955556
Type
SN II
Redshift
0.02
Related AstroNotes: 2025-135
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-04-19 09:44:34.944
TNS AT
Y
Public
Y
Discovery Mag
19.8
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_2025hsh - 2025-05-03 03:58:21 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
 ATLAS-STH_ATLAS-03_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
20960 2025-05-03 03:58:21 ESO-NTT / EFOSC2-NTT 1170 B. Ayala, C.Casanueva R. Dastidar, A. Gangopadhyay ePESSTO+ tns_2025hsh_2025-05-03_03-58-21_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025hsh_2025-05-03_03-58-21_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-04-11 09:43:49 - 2025-04-19 09:44:35 2460776.905433 - 2460784.905957 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
482762 2025-04-19 09:44:35 2460784.905957 19.8 0.2 ABMag L-GOTO GOTO-S_GOTO-4 180
482761 2025-04-11 09:43:49 2460776.905433 19.1 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-04-27 02:34:28 - 2025-04-27 02:34:28 2460792.60727 - 2460792.60727 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
484623 2025-04-27 02:34:28 2460792.60727 18.99 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
cyan-ATLAS ATLAS-STH_ATLAS-03 2025-04-28 18:13:09 - 2025-04-28 18:13:09 2460794.25913 - 2460794.25913 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
484624 2025-04-28 18:13:09 2460794.25913 18.827 0.134 19.51 ABMag cyan-ATLAS ATLAS-STH_ATLAS-03 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
252895 2025-04-29 07:05:51 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 08:23:13.630 -77:51:10.06 2025-04-28 18:13:08.832 18.827 cyan-ATLAS PSN ATLAS25eko ATLAS N
251986 2025-04-19 20:54:07 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 08:23:13.548 -77:51:10.16 2025-04-19 09:44:34.944 19.8 L-GOTO Other GOTO25bzh GOTO 2025TNSTR1435....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
20960 2025-05-03 16:24:53 ePESSTOplus_Bot1 B. Ayala, C.Casanueva, R. Dastidar, A. Gangopadhyay, O. Yaron on behalf of ePESSTO+ ePESSTO+ SN II 0.02 1 ePESSTO+ 2025TNSCR1649....1A
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
20960 2025-05-03 03:58:21 ESO-NTT / EFOSC2-NTT 1170 B. Ayala, C.Casanueva R. Dastidar, A. Gangopadhyay ePESSTO+ tns_2025hsh_2025-05-03_03-58-21_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025hsh_2025-05-03_03-58-21_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 252895 of Group ATLAS
Previous RA, DEC: 08:23:13.548, -77:51:10.16 (125.806451, -77.852821)
Updated RA, DEC: 08:23:13.630, -77:51:10.06 (125.806793333, -77.8527955556)