RA/DEC (2000)
13:26:35.754 -30:59:35.59
201.648975 -30.9932183333
Type
SN II
Redshift
0.048
Discovery ReportClassification Report
Related AstroNotes: 2025-225, 2025-248
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-07-18 00:41:06.720
TNS AT
Y
Public
Y
Discovery Mag
18.469
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), M. R. Alarcón, J. Licandro, P. Nichita (IAC), 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_2025rjo - 2025-08-09 01:02:58 ESO-NTT / EFOSC2-NTT (ePESSTO+)z=
 ▌SN_2025rjo - 2025-07-23 02:12:00 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

 ▌ATLAS-CHL_ATLAS-04_cyan
 ▌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
21736 2025-08-09 01:02:58 ESO-NTT / EFOSC2-NTT 1800 Joyce Naomi Dominique van Dalen, Daniele Bjørn Malesani Antonio Martin-Carrillo, Gregory Corcoran, Laura Cotter ePESSTO+ tns_2025rjo_2025-08-09_01-02-58_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025rjo_2025-08-09_01-02-58_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
21604 2025-07-23 02:12:00 ESO-NTT / EFOSC2-NTT 600 R. Santos, G. Martins J. Duarte, S. González-Gaitán ePESSTO+ tns_2025rjo_2025-07-23_02-12-00_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025rjo_2025-07-23_02-12-00_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
cyan-ATLAS ATLAS-CHL_ATLAS-04 2025-07-18 00:41:07 - 2025-07-18 00:41:07 2460874.52855 - 2460874.52855 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
503244 2025-07-18 00:41:07 2460874.52855 18.469 0.097 19.41 ABMag cyan-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
orange-ATLAS ATLAS-STH_ATLAS-03 2025-07-16 17:46:34 - 2025-07-16 17:46:34 2460873.24067 - 2460873.24067 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
503243 2025-07-16 17:46:34 2460873.24067 19.44 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
262887 2025-07-18 09:29:10 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 13:26:35.754 -30:59:35.59 2025-07-18 00:41:06.720 18.469 cyan-ATLAS PSN ATLAS25huj ATLAS 2025TNSTR2748....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
21736 2025-08-09 18:19:17 ePESSTOplus_Bot1 Joyce Naomi Dominique van Dalen, Daniele Bjørn Malesani, Antonio Martin-Carrillo, Gregory Corcoran, Laura Cotter, O. Yaron on behalf of ePESSTO+ ePESSTO+ SN II 0.048 1 ePESSTO+ 2025TNSCR3127....1v
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
21736 2025-08-09 01:02:58 ESO-NTT / EFOSC2-NTT 1800 Joyce Naomi Dominique van Dalen, Daniele Bjørn Malesani Antonio Martin-Carrillo, Gregory Corcoran, Laura Cotter ePESSTO+ tns_2025rjo_2025-08-09_01-02-58_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025rjo_2025-08-09_01-02-58_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
21604 2025-07-24 05:49:28 ePESSTOplus_Bot1 R. Santos, G. Martins, J. Duarte, S. González-Gaitán, O. Yaron on behalf of ePESSTO+ ePESSTO+ SN 0.048 1 ePESSTO+ 2025TNSCR2880....1S
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
21604 2025-07-23 02:12:00 ESO-NTT / EFOSC2-NTT 600 R. Santos, G. Martins J. Duarte, S. González-Gaitán ePESSTO+ tns_2025rjo_2025-07-23_02-12-00_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025rjo_2025-07-23_02-12-00_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments