SN 2021ddh
RA/DEC (2000)
08:39:29.117 -01:24:29.17
129.871321875 -1.4081040875
Type
SN Ia
Redshift
0.036
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2021-02-17 10:12:00.000
TNS AT
Y
Public
Y
Discovery Mag
18.939
Filter
cyan-ATLAS
Reporter/s
J. Tonry, L. Denneau, A. Heinze, H. Weiland (IfA, University of Hawaii), B. Stalder (LSST), A. Rest (STScI), C. Stubbs (Harvard University), K. W. Smith, S. J. Smartt, D. R. Young, S. Srivastav, O. McBrien, M. Fulton, J. Gillanders, C. Webb (Queen's University Belfast), T.-W. Chen (MPE), D. E. Wright (University of Minnesota), J. Anderson (ESO)

Spectra

 SN_2021ddh - 2021-02-19 23:01:51 LT / SPRAT (TCD)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)
Spectra
SelectIDObs-date (UT)Tel / InstExp-TimeObserver/sReducer/sGroupSpectrum ascii fileSpectrum fits fileSpec. TypeAssoc. GroupsEnd prop. periodRemarks
90082021-02-19 23:01:51LT / SPRATS. PrenticeTCD tns_2021ddh_2021-02-19_23-01-50.688_LT_SPRAT_TCD.txtObjectTCD
Light Curves
FilterTel / InstObs-date rangePhotometry
cyan-ATLASATLAS1_ACAM12021-02-15 10:10:34 - 2021-02-17 10:12:002
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
1931942021-02-17 10:12:0018.9390.11119.74ABMagcyan-ATLASATLAS1_ACAM130Robot
1931932021-02-15 10:10:3419.78ABMagcyan-ATLASATLAS1_ACAM130Robot[Last non detection]
g-ZTFP48_ZTF-Cam2021-02-11 07:01:55 - 2021-02-11 07:01:551
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
1932142021-02-11 07:01:5520.65ABMagg-ZTFP48_ZTF-Cam30ZTF[Last non detection]
r-ZTFP48_ZTF-Cam2021-02-11 05:39:31 - 2021-02-18 05:39:504
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
1932162021-02-18 05:39:5018.58ABMagr-ZTFP48_ZTF-Cam30ZTF
1942812021-02-15 06:07:4119.71690.17828919.9707ABMagr-ZTFP48_ZTF-Cam30RobotData provided by ZTF, classified by Fink
1932152021-02-15 06:07:1219.72ABMagr-ZTFP48_ZTF-Cam30ZTF
1942802021-02-11 05:39:3120.5579ABMagr-ZTFP48_ZTF-Cam30Robot[Last non detection] Data provided by ZTF, classified by Fink
AT Reports
IDTime received (UT)SenderReporter/sReportting groupDisc. Data SourceRADECDiscovery date (UT)Discovery Mag.FilterRelated filesAT TypeInternal nameAssoc. GroupsEnd prop. periodRemarks
1002622021-02-22 20:16:25FinkJulien Peloton, Anais Moller, Emille E. O. Ishida on behalf of the Fink brokerFinkZTF08:39:29.117-01:24:29.172021-02-15 06:07:40.99619.7169r-ZTFPSNZTF21aakzmaqZTFEarly SN candidate classified by Fink using the public ZTF stream. Object data at http://134.158.75.151:24000/ZTF21aakzmaq
997972021-02-18 07:59:24ZTF_Bot1C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) collaborationZTFZTF08:39:29.093-01:24:29.352021-02-15 06:07:12.00019.72r-ZTFPSNZTF21aakzmaqZTF
997862021-02-18 00:58:28ATLAS_Bot1J. Tonry, L. Denneau, A. Heinze, H. Weiland (IfA, University of Hawaii), B. Stalder (LSST), A. Rest (STScI), C. Stubbs (Harvard University), K. W. Smith, S. J. Smartt, D. R. Young, S. Srivastav, O. McBrien, M. Fulton, J. Gillanders, C. Webb (Queen's University Belfast), T.-W. Chen (MPE), D. E. Wright (University of Minnesota), J. Anderson (ESO)ATLASATLAS08:39:29.121-01:24:29.112021-02-17 10:12:00.00018.939cyan-ATLASPSNATLAS21gmkATLAS
Classification Reports
IDTime received (UT)SenderClassifier/sGroupClassificationRedshiftRelated filesAssoc. GroupsEnd prop. periodRemarksADS Bibcode
89982021-02-20 00:01:49Simon PrenticeSimon Prentice, Kate Maguire, Mark Magee, Maxime Deckers, Luke Harvey, Jacco Terwel (TCD)TCDSN Ia0.036TCDOur Python based classification tool matches SNe Ia 7 - 10 days before maximum light at z = 0.036 +-0.004.2021TNSCR.540....1P

Comments

Object coordinates updated according to AT-report 100262 of Group ZTF
Previous RA, DEC: 08:39:29.093, -01:24:29.35 (129.8712204, -1.408154)
Updated RA, DEC: 08:39:29.117, -01:24:29.17 (129.871321875, -1.4081040875)

Object coordinates updated according to AT-report 99797 of Group ZTF
Previous RA, DEC: 08:39:29.121, -01:24:29.11 (129.871338571, -1.40808571429)
Updated RA, DEC: 08:39:29.093, -01:24:29.35 (129.8712204, -1.408154)