SN 2018epf
RA/DEC (2000)
16:50:31.703 +43:03:27.18
252.632095333 +43.0575513333
Type
SN I
Redshift
0.038
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2018-08-04 08:35:31.000
TNS AT
Y
Public
Y
Discovery Mag
14.899
Filter
orange-ATLAS
Reporter/s
J. Tonry, B. Stalder, L. Denneau, A. Heinze, H. Weiland (IfA, University of Hawaii), A. Rest (STScI), K. W. Smith, S. J. Smartt, D. R. Young, M. Fulton, O. McBrien, D. O'Neill, P. Clark (Queen's University Belfast)

Spectra

 SN_2018epf - 2018-08-05 19:43:28 UH88 / SNIFS (SCAT)z=
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   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)
Spectra
SelectIDObs-date (UT)Tel / InstExp-TimeObserver/sReducer/sGroupSpectrum ascii fileSpectrum fits fileSpec. TypeAssoc. GroupsEnd prop. periodRemarks
24502018-08-05 19:43:28UH88 / SNIFS600M.A.TuckerSCAT tns_2018epf_2458336.321863_UH88_SNIFS_SCAT.datObjectSCATReduced using a summit quick reduction pipeline, care should be taken before re-using this data for further studies.
Light Curves
FilterTel / InstObs-date rangePhotometry
cyan-ATLASATLAS1_ACAM12018-08-01 11:26:52 - 2018-08-01 11:26:521
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
330582018-08-01 11:26:5216.63ABMagcyan-ATLASATLAS1_ACAM130Robot[Last non detection]
orange-ATLASATLAS1_ACAM12018-08-04 08:35:31 - 2018-08-04 08:35:311
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
330592018-08-04 08:35:3114.8990.16516.62ABMagorange-ATLASATLAS1_ACAM130Robot
AT Reports
IDTime received (UT)SenderReporter/sReportting groupDisc. Data SourceRADECDiscovery date (UT)Discovery Mag.FilterRelated filesAT TypeInternal nameAssoc. GroupsEnd prop. periodRemarks
212252018-08-04 11:18:34ATLAS_Bot1J. Tonry, B. Stalder, L. Denneau, A. Heinze, H. Weiland (IfA, University of Hawaii), A. Rest (STScI), K. W. Smith, S. J. Smartt, D. R. Young, M. Fulton, O. McBrien, D. O'Neill, P. Clark (Queen's University Belfast)ATLASATLAS16:50:31.703+43:03:27.182018-08-04 08:35:31.00014.899orange-ATLASPSNATLAS18szpATLAS
Classification Reports
IDTime received (UT)SenderClassifier/sGroupClassificationRedshiftRelated filesAssoc. GroupsEnd prop. periodRemarksADS Bibcode
24432018-08-06 13:38:14tuckermaMichael A. Tucker, Benjamin J. Shappee (IfA, UH Manoa)SCATSN I0.038SCATSN Ia/b2018TNSCR1115....1T

Comments

The object flagged by the ATLAS team appears to be a Milky Way star or possibly a double star based on its slightly elongated image in SDSS and Gaia proper motion.  The supernova determination by SCAT is in error and perhaps was actually another transient.  More information here