RA/DEC (2000)
22:04:13.307 -62:36:12.13
331.055444 -62.60337
Type
SN II
Redshift
0.055
Discovery ReportClassification Report
Related AstroNotes: 2026-145
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2026-05-13 08:49:37.920
TNS AT
Y
Public
Y
Discovery Mag
18.826
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_2026mlc - 2026-05-20 07:39:26 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-4_L
 ▌ATLAS-CHL_ATLAS-04_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
23786 2026-05-20 07:39:26 ESO-NTT / EFOSC2-NTT 900 Jasvinderjit Khaulsay, Jonathan Quirola Meng-Han Lee, Anirban Dutta, Aiswarya Sankar.K ePESSTO+ tns_2026mlc_2026-05-20_07-39-26_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2026mlc_2026-05-20_07-39-26_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-12-14 10:31:48 - 2026-05-05 19:15:37 2461023.938752 - 2461166.302505 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
587752 2026-05-05 19:15:37 2461166.302505 18.85 0.1 ABMag L-GOTO GOTO-S_GOTO-4 180
587751 2025-12-14 10:31:48 2461023.938752 20.1 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
orange-ATLAS ATLAS-CHL_ATLAS-04 2026-05-04 08:19:22 - 2026-05-13 08:49:38 2461164.84678 - 2461173.8678 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
582309 2026-05-13 08:49:38 2461173.8678 18.826 0.141 19.28 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
582308 2026-05-04 08:19:22 2461164.84678 18.82 ABMag orange-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
306460 2026-05-28 13:40:41 GOTO_bot D. O'Neill, M. Pursiainen, K. Ackley et al. GOTO GOTO 22:04:13.374 -62:36:12.51 2026-05-05 19:15:36.864 18.85 L-GOTO PSN GOTO26ewv GOTO N
303617 2026-05-14 09:19:21 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 22:04:13.307 -62:36:12.13 2026-05-13 08:49:37.920 18.826 orange-ATLAS PSN ATLAS26fny ATLAS 2026TNSTR2096....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
23782 2026-05-20 14:43:03 ePESSTOplus_Bot1 Jasvinderjit Khaulsay, Jonathan Quirola, Meng-Han Lee, Anirban Dutta, Aiswarya Sankar.K, A. Horowicz on behalf of ePESSTO+ ePESSTO+ SN II 0.055 1 ePESSTO+ 2026TNSCR2201....1K
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
23786 2026-05-20 07:39:26 ESO-NTT / EFOSC2-NTT 900 Jasvinderjit Khaulsay, Jonathan Quirola Meng-Han Lee, Anirban Dutta, Aiswarya Sankar.K ePESSTO+ tns_2026mlc_2026-05-20_07-39-26_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2026mlc_2026-05-20_07-39-26_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments