RA/DEC (2000)
13:01:56.482 -31:45:10.71
195.48534375 -31.75297375
Type
SN Ia-91T-like
Redshift
0.052
Discovery ReportClassification Report
Related AstroNotes: 2026-137
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2026-05-12 03:13:52.896
TNS AT
Y
Public
Y
Discovery Mag
19.007
Filter
cyan-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_2026mlf - 2026-05-16 00:31:22 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_cyan
 ▌ATLAS-MLO_ATLAS-01_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
23731 2026-05-16 00:31:22 ESO-NTT / EFOSC2-NTT 1800 J. Khaulsay,J. Quirola-Vasquez C. Aster ePESSTO+ tns_2026mlf_2026-05-16_00-31-22_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2026mlf_2026-05-16_00-31-22_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2026-05-09 14:10:48 - 2026-05-10 10:12:21 2461170.090829 - 2461170.925236 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
585134 2026-05-10 10:12:21 2461170.925236 19.99 0.22 ABMag L-GOTO GOTO-S_GOTO-4 180
585133 2026-05-09 14:10:48 2461170.090829 19.9 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
cyan-ATLAS ATLAS-CHL_ATLAS-04 2026-05-12 03:13:53 - 2026-05-12 03:13:53 2461172.63464 - 2461172.63464 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
582331 2026-05-12 03:13:53 2461172.63464 19.007 0.127 19.8 ABMag cyan-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
orange-ATLAS ATLAS-MLO_ATLAS-01 2026-05-11 08:48:42 - 2026-05-11 08:48:42 2461171.86715 - 2461171.86715 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
582330 2026-05-11 08:48:42 2461171.86715 19.18 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 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
305138 2026-05-24 15:21:36 GOTO_bot D. O'Neill, K. Ackley, M. Dyer et al. GOTO GOTO 13:01:56.439 -31:45:11.02 2026-05-10 10:12:20.736 19.99 L-GOTO Other GOTO26fdm GOTO N
303628 2026-05-14 09:27:08 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 13:01:56.482 -31:45:10.71 2026-05-12 03:13:52.896 19.007 cyan-ATLAS PSN ATLAS26foj 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
23728 2026-05-16 16:17:17 ePESSTOplus_Bot1 J. Khaulsay,J. Quirola-Vasquez, C. Aster, O. Yaron on behalf of ePESSTO+ ePESSTO+ SN Ia-91T-like 0.052 1 ePESSTO+ 2026TNSCR2134....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
23731 2026-05-16 00:31:22 ESO-NTT / EFOSC2-NTT 1800 J. Khaulsay,J. Quirola-Vasquez C. Aster ePESSTO+ tns_2026mlf_2026-05-16_00-31-22_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2026mlf_2026-05-16_00-31-22_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments