RA/DEC (2000)
12:30:13.634 -26:03:03.53
187.55681 -26.05098
Type
SN II
Redshift
0.02
Discovery ReportClassification Report
Related AstroNotes: 2026-188
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2026-06-04 08:10:38.208
TNS AT
Y
Public
Y
Discovery Mag
18.946
Filter
orange-ATLAS
Reporter/s
J. Tonry, L. Denneau, H. Weiland (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, P. J. Broda, A. J. Smith (QUB), P. Ramsden (Birmingham/QUB), L. Shingles (GSI/QUB), S. Srivastav, J. H. Gillanders, H. Stevance, A. J. Cooper, F. Stoppa, J. Tweddle, L. Eastman (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_2026ofe - 2026-06-08 04:04:08 ESO-NTT / EFOSC2-NTT (ePESSTO+)z=
 ▌SN_2026ofe - 2026-06-07 02:52:03 Magellan-Baade / IMACS (POISE)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
 ▌ATLAS-MLO_ATLAS-01_orange
 ▌ATLAS-HKO_ATLAS-02_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
23965 2026-06-08 04:04:08 ESO-NTT / EFOSC2-NTT 1200 E. Charleton, C.G. Touchard-Paxton, M. Ghendrih C. Dashwood-Brown ePESSTO+ tns_2026ofe_2026-06-08_04-04-08_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2026ofe_2026-06-08_04-04-08_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
23957 2026-06-07 02:52:03 Magellan-Baade / IMACS Burns, Morrell, Xiao, Hsiao Nidia Morrell POISE tns_2026ofe_2026-06-07_02-52-03_Magellan-Baade_IMACS_POISE.dat Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2026-05-24 09:45:31 - 2026-06-06 08:52:19 2461184.906614 - 2461197.869672 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
589905 2026-06-06 08:52:19 2461197.869672 18.24 0.03 ABMag L-GOTO GOTO-S_GOTO-4 180
589904 2026-05-24 09:45:31 2461184.906614 20 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
orange-ATLAS ATLAS-MLO_ATLAS-01 2026-06-04 08:10:38 - 2026-06-04 08:10:38 2461195.84072 - 2461195.84072 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
588855 2026-06-04 08:10:38 2461195.84072 18.946 0.191 19.17 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
orange-ATLAS ATLAS-HKO_ATLAS-02 2026-06-01 08:23:02 - 2026-06-01 08:23:02 2461192.84933 - 2461192.84933 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
588854 2026-06-01 08:23:02 2461192.84933 18.39 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 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
307524 2026-06-08 11:06:46 GOTO_bot G. Ramsay, K. Ackley, M. Dyer et al. GOTO GOTO 12:30:13.617 -26:03:03.63 2026-06-06 08:52:19.488 18.24 L-GOTO Other GOTO26fja GOTO N
307010 2026-06-04 18:28:10 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 12:30:13.634 -26:03:03.53 2026-06-04 08:10:38.208 18.946 orange-ATLAS PSN ATLAS26gqz ATLAS N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
23961 2026-06-08 16:56:38 ePESSTOplus_Bot1 E. Charleton, C.G. Touchard-Paxton, M. Ghendrih, C. Dashwood-Brown, O. Yaron on behalf of ePESSTO+ ePESSTO+ SN II 0.02 1 ePESSTO+
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
23965 2026-06-08 04:04:08 ESO-NTT / EFOSC2-NTT 1200 E. Charleton, C.G. Touchard-Paxton, M. Ghendrih C. Dashwood-Brown ePESSTO+ tns_2026ofe_2026-06-08_04-04-08_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2026ofe_2026-06-08_04-04-08_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
23953 2026-06-07 03:45:59 Eric Hsiao Chris Burns, Nidia Morrell (Carnegie), Huangfei Xiao, John Barney, Asher Cicco, Dylan Drapeau, Anthony Russo, Eric Hsiao (FSU) POISE SN II 1 POISE
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
23957 2026-06-07 02:52:03 Magellan-Baade / IMACS Burns, Morrell, Xiao, Hsiao Nidia Morrell POISE tns_2026ofe_2026-06-07_02-52-03_Magellan-Baade_IMACS_POISE.dat Object

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