SN 2011ek
RA/DEC (2000)
02:25:48.890 +18:31:59.99
36.45371 +18.53333
Discovery Date
2011-08-04 00:00:00.000
Host Name
NGC 918
[Discoverer=Itagaki; DiscoveryRef=CBET 2783; PositionRef=CBET 2783; Orig Type=Ia ]
Discovery Mag
IAU name


 SN_2011ek - 2011-08-07 09:35:38 Plaskett / Plaskett (DAO_OTS)z=
 SN_2011ek - 2011-08-05 09:49:17 Plaskett / Plaskett (DAO_OTS)z=
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   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)
SelectIDObs-date (UT)Tel / InstExp-TimeObserver/sReducer/sGroupSpectrum ascii fileSpectrum fits fileSpec. TypeAssoc. GroupsEnd prop. periodRemarks
21012011-08-07 09:35:38Plaskett / Plaskett6444BalamBalamDAO_OTS tns_2011ek_2011-08-07_09-35-38_Plaskett_Telescope_Plaskett_DAO_OTS.txt tns_2011ek_2011-08-07_09-35-38_Plaskett_Telescope_Plaskett_DAO_OTS.fitsObjectDAO_OTS
21002011-08-05 09:49:17Plaskett / Plaskett1102BalamBalamDAO_OTS tns_2011ek_2011-08-05_09-49-17_Plaskett_Telescope_Plaskett_DAO_OTS.txt tns_2011ek_2011-08-05_09-49-17_Plaskett_Telescope_Plaskett_DAO_OTS.fitsObjectDAO_OTS D. D. Balam, Dominion Astrophysical Observatory, National Research Council of Canada (NRCC); M. L. Graham, Las Cumbres Observatory Global Telescope, University of California at Santa Barbara; E. Y. Hsiao, Lawrence Berkeley Laboratory; and D. W. E. Green, Harvard University, report that a spectrogram (range 383-717 nm, resolution 0.3 nm) of PSN J02254889+1832000 = 2011ek, obtained on Aug. 7.41 UT with the 1.82-m Plaskett Telescope of the NRCC, shows it to be a type-Ia supernova before maximum light. Comparison with a library of supernova spectra using the "superfit" matching program of Howell et al. (2005, Ap.J. 634, 1190) indicates that 2011ek is a normal type-Ia supernova most similar to SN 2002bo at 11 days before maximum light.
Light Curves
No Data
AT Reports
No Data
Classification Reports
IDTime received (UT)SenderClassifier/sGroupClassificationRedshiftRelated filesAssoc. GroupsEnd prop. periodRemarksADS Bibcode
20942018-06-09 05:05:36DAO_OTSDave BalamDAO_OTSSN Ia0.01DAO_OTS2018TNSCR.788....1B