RA/DEC (2000)
17:20:08.228 -60:09:24.10
260.034283333 -60.1566944444
Type
SN Ia
Redshift
0.015
Discovery ReportClassification Report
Related AstroNotes: 2025-95, 2025-106
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-03-22 07:28:31.008
TNS AT
Y
Public
Y
Discovery Mag
17.19
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, 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_2025fep - 2025-04-04 09:02:55 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_orange
 ▌ATLAS-STH_ATLAS-03_orange
   
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
20688 2025-04-04 09:02:55 ESO-NTT / EFOSC2-NTT 360 M. Ghendrih, C. Duffy A. Milligan, M. Smith ePESSTO+ tns_2025fep_2025-04-04_09-02-55_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025fep_2025-04-04_09-02-55_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-03-22 07:28:31 - 2025-03-22 07:28:31 2460756.81147 - 2460756.81147 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
477697 2025-03-22 07:28:31 2460756.81147 17.19 0.064 18.82 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
orange-ATLAS ATLAS-STH_ATLAS-03 2025-03-20 01:50:49 - 2025-03-20 01:50:49 2460754.57696 - 2460754.57696 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
477696 2025-03-20 01:50:49 2460754.57696 17.08 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 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
249254 2025-03-22 14:39:31 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 17:20:08.228 -60:09:24.10 2025-03-22 07:28:31.008 17.19 orange-ATLAS PSN ATLAS25cvu ATLAS 2025TNSTR1082....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
20688 2025-04-04 17:59:20 ePESSTOplus_Bot1 M. Ghendrih, C. Duffy, A. Milligan, M. Smith, O. Yaron on behalf of ePESSTO+ ePESSTO+ SN Ia 0.015 1 Add ePESSTO+ 2025TNSCR1275....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
20688 2025-04-04 09:02:55 ESO-NTT / EFOSC2-NTT 360 M. Ghendrih, C. Duffy A. Milligan, M. Smith ePESSTO+ tns_2025fep_2025-04-04_09-02-55_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025fep_2025-04-04_09-02-55_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments