RA/DEC (2000)
13:59:21.061 -40:04:24.24
209.837752739 -40.0734012417
Type
SN IIb
Redshift
0.013
Discovery ReportClassification Report
Related AstroNotes: 2025-52, 2025-53
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-02-09 02:08:38.112
TNS AT
Y
Public
Y
Discovery Mag
18.069
Filter
orange-ATLAS
Reporter/s
J. Tonry, L. Denneau, H. Weiland, R. Siverd (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), A. Jordan, V. Suc (UAI, Obstech), S. J. Smartt, K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, C. R. Angus, A. Wilson, A. Aamer, D. Magill (QUB), P. Ramsden (Birmingham/QUB), L. Shingles (GSI/QUB), S. Srivastav, J. H. Gillanders, H. Stevance, A. J. Cooper, F. Stoppa (Oxford), L. Rhodes (TSI/McGill), A. Rest (STScI), T.-W. Chen (NCU), C. Stubbs (Harvard), J. S. Sommer (LMU), B. P. Schmidt (ANU)
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025bcn - 2025-02-10 09:05:09 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
 ▌GOTO-S_GOTO-3_L
 ▌ATLAS-CHL_ATLAS-04_cyan
 ▌ATLAS-STH_ATLAS-03_orange
 ▌PS1_GPC1_w
   
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
20368 2025-02-10 09:05:09 ESO-NTT / EFOSC2-NTT 1199 J. Gillanders, D. Magill C. Angus, M. Fulton ePESSTO+ tns_2025bcn_2025-02-10_09-05-09_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025bcn_2025-02-10_09-05-09_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-02-02 17:18:27 - 2025-02-02 17:18:27 2460709.221148 - 2460709.221148 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
467727 2025-02-02 17:18:27 2460709.221148 20 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
L-GOTO GOTO-S_GOTO-3 2025-02-10 17:23:04 - 2025-02-10 17:23:04 2460717.224352 - 2460717.224352 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
467728 2025-02-10 17:23:04 2460717.224352 17.96 0.04 ABMag L-GOTO GOTO-S_GOTO-3 180
cyan-ATLAS ATLAS-CHL_ATLAS-04 2025-02-06 05:57:34 - 2025-02-06 05:57:34 2460712.74831 - 2460712.74831 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
467525 2025-02-06 05:57:34 2460712.74831 19.35 ABMag cyan-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
orange-ATLAS ATLAS-STH_ATLAS-03 2025-02-09 02:08:38 - 2025-02-09 02:08:38 2460715.58933 - 2460715.58933 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
467526 2025-02-09 02:08:38 2460715.58933 18.069 0.123 19.27 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot
w-P1 PS1_GPC1 2025-03-29 11:38:42 - 2025-03-29 11:38:42 2460763.98521 - 2460763.98521 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
479911 2025-03-29 11:38:42 2460763.98521 18.01 0.01 22 ABMag w-P1 PS1_GPC1 45 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
250385 2025-03-31 14:35:17 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 13:59:21.061 -40:04:24.24 2025-03-29 11:38:42.144 18.01 w-P1 PSN PS25awq Pan-STARRS N
243916 2025-02-10 22:25:06 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 13:59:21.057 -40:04:24.29 2025-02-10 17:23:03.840 17.96 L-GOTO Other GOTO25afo GOTO N
243828 2025-02-09 08:11:03 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 13:59:21.062 -40:04:24.32 2025-02-09 02:08:38.112 18.069 orange-ATLAS PSN ATLAS25bne ATLAS 2025TNSTR.546....1T N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
20368 2025-02-10 14:44:41 ePESSTOplus_Bot1 J. Gillanders, D. Magill, C. Angus, M. Fulton, O. Yaron on behalf of ePESSTO+ ePESSTO+ SN IIb 0.013 1 Add ePESSTO+ 2025TNSCR.569....1G
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
20368 2025-02-10 09:05:09 ESO-NTT / EFOSC2-NTT 1199 J. Gillanders, D. Magill C. Angus, M. Fulton ePESSTO+ tns_2025bcn_2025-02-10_09-05-09_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025bcn_2025-02-10_09-05-09_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments

TNS
System

Mon, 03/31/2025 - 14:35

Object coordinates updated

Object coordinates updated according to AT-report 250385 of Group Pan-STARRS
Previous RA, DEC: 13:59:21.062, -40:04:24.32 (209.837757778, -40.0734211111)
Updated RA, DEC: 13:59:21.061, -40:04:24.24 (209.837752739, -40.0734012417)