RA/DEC (2000)
19:34:57.964 -70:49:43.28
293.741516667 -70.8286883333
Type
SN Ia-91T-like
Redshift
0.0373
Discovery ReportClassification Report
Related AstroNotes: 2025-108
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-03-30 06:21:27.360
TNS AT
Y
Public
Y
Discovery Mag
17.184
Filter
cyan-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, J. Tweddle (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_2025gfc - 2025-04-05 07:57:00 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-3_L
 ▌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
20697 2025-04-05 07:57:00 ESO-NTT / EFOSC2-NTT 300 C. Duffy, M. Ghendrih M. Smith, C. Angus ePESSTO+ tns_2025gfc_2025-04-05_07-57-00_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025gfc_2025-04-05_07-57-00_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-3 2025-03-13 17:33:50 - 2025-04-13 16:58:37 2460748.231826 - 2460779.207365 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
482062 2025-04-13 16:58:37 2460779.207365 16.89 0.03 ABMag L-GOTO GOTO-S_GOTO-3 180
482061 2025-03-13 17:33:50 2460748.231826 18.9 ABMag L-GOTO GOTO-S_GOTO-3 180 [Last non detection]
cyan-ATLAS ATLAS-CHL_ATLAS-04 2025-03-26 08:30:39 - 2025-03-30 06:21:27 2460760.85462 - 2460764.7649 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
479768 2025-03-30 06:21:27 2460764.7649 17.184 0.043 19.03 ABMag cyan-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
479767 2025-03-26 08:30:39 2460760.85462 19.07 ABMag cyan-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
251609 2025-04-13 18:22:02 GOTO_bot D. O'Neill, G. Ramsay, K. Ackley et al. GOTO GOTO 19:34:57.974 -70:49:43.26 2025-04-13 16:58:36.768 16.89 L-GOTO Other GOTO25buj GOTO N
250305 2025-03-30 12:47:35 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 19:34:57.964 -70:49:43.28 2025-03-30 06:21:27.360 17.184 cyan-ATLAS PSN ATLAS25dir ATLAS 2025TNSTR1205....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
20697 2025-04-05 17:47:10 ePESSTOplus_Bot1 C. Duffy, M. Ghendrih, M. Smith, C. Angus, O. Yaron on behalf of ePESSTO+ ePESSTO+ SN Ia-91T-like 0.0373 1 ePESSTO+ 2025TNSCR1293....1D
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
20697 2025-04-05 07:57:00 ESO-NTT / EFOSC2-NTT 300 C. Duffy, M. Ghendrih M. Smith, C. Angus ePESSTO+ tns_2025gfc_2025-04-05_07-57-00_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025gfc_2025-04-05_07-57-00_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments