RA/DEC (2000)
04:28:39.648 -18:41:26.63
67.1651991667 -18.69073
Type
SN Ia
Redshift
0.07
Discovery ReportClassification Report
Related AstroNotes: 2025-110
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-03-23 00:01:54.912
TNS AT
Y
Public
Y
Discovery Mag
18.571
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_2025fhn - 2025-04-05 23:50:56 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

 ▌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
20710 2025-04-05 23:50:56 ESO-NTT / EFOSC2-NTT 1600 M. Ghendrih, C. Duffy A. Milligan, M. Smith, C. Angus ePESSTO+ tns_2025fhn_2025-04-05_23-50-56_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025fhn_2025-04-05_23-50-56_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
cyan-ATLAS ATLAS-CHL_ATLAS-04 2025-03-20 00:41:33 - 2025-03-23 00:01:55 2460754.52885 - 2460757.50133 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
477911 2025-03-23 00:01:55 2460757.50133 18.571 0.118 19.18 ABMag cyan-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
477910 2025-03-20 00:41:33 2460754.52885 19.21 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
249390 2025-03-23 09:28:28 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 04:28:39.648 -18:41:26.63 2025-03-23 00:01:54.912 18.571 cyan-ATLAS PSN ATLAS25cxo ATLAS 2025TNSTR1094....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
20710 2025-04-06 18:31:42 ePESSTOplus_Bot1 M. Ghendrih, C. Duffy, A. Milligan, M. Smith, C. Angus, O. Yaron on behalf of ePESSTO+ ePESSTO+ SN Ia 0.07 1 Add ePESSTO+ 2025TNSCR1303....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
20710 2025-04-05 23:50:56 ESO-NTT / EFOSC2-NTT 1600 M. Ghendrih, C. Duffy A. Milligan, M. Smith, C. Angus ePESSTO+ tns_2025fhn_2025-04-05_23-50-56_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025fhn_2025-04-05_23-50-56_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments