SN 2018cmj
RA/DEC (2000)
01:38:53.23 -42:35:21.30
24.7218 -42.58925
Type
SN II
Redshift
0.020784
Source Group
ASAS-SN
Discovery Date
2018-06-13 08:52:48
TNS AT
Y
Public
Y
Host Name
NGC 0644
Host Redshift
0.020784
Discovery Mag
17.1
Filter
g-Sloan
Discoverer/s
K. Z. Stanek, for the ASAS-SN team
 2018-07-11 16:27:39 FTS / FLOYDS-S (Global SN Project)
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   Binning factor: (rounded to nearest integer >1)
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Spectra
IDObs-date (UT)Tel / InstExp-TimeObserver/sReducer/sGroupSpectrum ascii fileSpectrum fits fileSpec. TypeAssoc. GroupsEnd prop. periodRemarks
22692018-07-11 16:27:39FTS / FLOYDS-S2700Las Cumbres ObservatoryDaichi HiramatsuGlobal SN Project tns_2018cmj_2018-07-11_16-27-39_FTS_FLOYDS-S_Global_SN_Project.ascii tns_2018cmj_2018-07-11_16-27-39_FTS_FLOYDS-S_Global_SN_Project.fitsObjectGlobal SN Project
Light Curves
FilterTel / InstObs-date rangePhotometry
orange-ATLASATLAS1_ACAM12018-07-20 14:48:28 - 2018-07-22 13:47:592
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
323382018-07-22 13:47:5917.4730.08619.23ABMagorange-ATLASATLAS1_ACAM130Robot
323372018-07-20 14:48:2817.64ABMagorange-ATLASATLAS1_ACAM130Robot[Last non detection]
g-SloanASASSN-3_Paczynski2018-05-24 10:04:48 - 2018-06-13 08:52:482
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
299852018-06-13 08:52:4817.1ABMagg-SloanASASSN-3_Paczynski
299842018-05-24 10:04:4818.5ABMagg-SloanASASSN-3_Paczynski[Last non detection]
AT Reportings
IDTime received (UT)SenderReporter/s (Discoverer/s)GroupRADECDiscovery date (UT)Discovery Mag.FilterRelated filesAT TypeInternal nameAssoc. GroupsEnd prop. periodRemarks
208012018-07-23 10:39:35ATLAS_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)ATLAS01:38:53.32-42:35:22.282018-07-22 13:47:5917.473orange-ATLASPSNATLAS18sliATLAS
193802018-06-13 12:24:12KZStanekK. Z. Stanek, for the ASAS-SN teamASAS-SN01:38:53.23-42:35:21.302018-06-13 08:52:4817.1g-SloanPSNASASSN-18mjASAS-SNIn two epochs, on the rise
Classification Reportings
IDTime received (UT)SenderClassifier/sGroupClassificationRedshiftRelated filesAssoc. GroupsEnd prop. periodRemarks
22622018-07-13 17:43:15dhiramatsuDaichi Hiramatsu, Griffin Hosseinzadeh, Iair Arcavi, Jamison Burke, D. Andrew Howell, Curtis McCully, Stefano ValentiGlobal SN ProjectSN II0.020784Global SN ProjectUsing SNID (Blondin & Tonry 2007, ApJ, 666, 1024), we find good fits to several Type II supernovae around the redshift of the proposed host galaxy (z=0.020784; Mathewson, Ford, and Buchhorn 1992, ApJS, 81, 413, via NED). Despite the age (a month since the discovery), the spectrum stays blue with relatively weak H features.

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