SN 2020tcw
RA/DEC (2000)
15:28:17.080 +39:56:50.53
232.071167 +39.947369
Type
SLSN-I
Redshift
0.0645
Related AstroNotes: 2020-192, 2021-73
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2020-09-12 05:26:52.800
TNS AT
Y
Public
Y
Discovery Mag
18.916
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, D. O'Neill, P. Clark, M. Fulton, J. Gillanders, M. Dobson (Queen's University Belfast), T.-W. Chen (MPE), D. E. Wright (University of Minnesota), J. Anderson (ESO), A. Townsend (University of Manchester)

Spectra

 SN_2020tcw - 2020-10-14 00:00:00 P60 / SEDM (ZTF)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
76602020-10-14 00:00:00P60 / SEDM1800SEDmRobotautoZTF tns_2020tcw_2020-10-14_P60_SEDM_ZTF.asciiObjectZTF
Light Curves
FilterTel / InstObs-date rangePhotometry
i-SloanPS1_GPC12021-02-01 14:29:46 - 2021-02-01 14:29:461
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
1891472021-02-01 14:29:4619.10.1720.7ABMagi-SloanPS1_GPC145Robot
w-PS1PS1_GPC12018-06-10 06:46:05 - 2018-06-10 06:46:051
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
1646692018-06-10 06:46:0521.760.1622ABMagw-PS1PS1_GPC145Robot
cyan-ATLASATLAS1_ACAM12020-09-08 05:57:07 - 2020-09-12 05:26:532
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
1575512020-09-12 05:26:5318.9160.18119.1ABMagcyan-ATLASATLAS1_ACAM130Robot
1575502020-09-08 05:57:0719.61ABMagcyan-ATLASATLAS1_ACAM130Robot[Last non detection]
G-GaiaGaia_Gaia-photometric2020-09-24 09:47:31 - 2020-10-17 21:53:172
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
1669202020-10-17 21:53:1716.360.2ABMagG-GaiaGaia_Gaia-photometric60Robot
1669192020-09-24 09:47:3121.5ABMagG-GaiaGaia_Gaia-photometricRobot[Last non detection]
g-ZTFP48_ZTF-Cam2020-09-03 04:23:31 - 2020-10-08 03:54:433
Photometry
IDObs-dateMag. / FluxErrLim. Mag./FluxUnitsFilterTel / InstExp-timeObserver/sRemarks
1640432020-10-08 03:54:4316.16ABMagg-ZTFP48_ZTF-Cam30ZTF
1640422020-10-06 03:38:5316.17ABMagg-ZTFP48_ZTF-Cam30ZTF
1640412020-09-03 04:23:3119.42ABMagg-ZTFP48_ZTF-Cam30ZTF[Last non detection]
AT Reports
IDTime received (UT)SenderReporter/sReportting groupDisc. Data SourceRADECDiscovery date (UT)Discovery Mag.FilterRelated filesAT TypeInternal nameAssoc. GroupsEnd prop. periodRemarks
980602021-02-02 10:32:41PS2_Bot1K. C. Chambers, T. de Boer, J. Bulger, J. Fairlamb, M. Huber, C.-C. Lin, T. Lowe, E. Magnier, A. Schultz, R. J. Wainscoat, M. Willman (IfA, University of Hawaii), K. W. Smith, D. R. Young, O. McBrien, J. Gillanders, S. Srivastav, M. Fulton, S. J. Smartt, D. O'Neill, P. Clark, S. Sim (Queen's University Belfast), D. E. Wright (University of Minnesota)Pan-STARRS1Pan-STARRS115:28:17.093+39:56:50.722021-02-01 14:29:45.60019.1i-SloanPSNPS20jciPan-STARRS1
869762020-10-21 14:17:28Gaia_Bot1S.T. Hodgkin, E. Breedt, A. Delgado, D.L. Harrison, M. van Leeuwen, G. Rixon, T. Wevers, A. Yoldas (IoA Cambridge), N. Ihanec, K. Kruszyńska, K.A. Rybicki, Ł. Wyrzykowski (Warsaw University Astronomical Observatory), Z. Kostrzewa-Rutkowska (Leiden Observatory), D. Eappachen (SRON/RU), G. Marton (Konkoly Observatory), on behalf of the Gaia Alerts teamGaiaAlertsGaiaAlerts15:28:17.080+39:56:50.532020-10-17 21:53:16.80016.36G-GaiaPSNGaia20ewrGaiaAlertsconfirmed SLSN-I
855982020-10-14 14:49:16PS1_Bot1K. C. Chambers, T. de Boer, J. Bulger, J. Fairlamb, M. Huber, C.-C. Lin, T. Lowe, E. Magnier, A. Schultz, R. J. Wainscoat, M. Willman (IfA, University of Hawaii), K. W. Smith, D. R. Young, O. McBrien, J. Gillanders, S. Srivastav, M. Fulton, S. J. Smartt, D. O'Neill, P. Clark, S. Sim (Queen's University Belfast), D. E. Wright (University of Minnesota)Pan-STARRS1Pan-STARRS115:28:17.089+39:56:50.632018-06-10 06:46:04.80021.76w-PS1PSNPS20jciPan-STARRS1
852462020-10-12 22:43:17ZTF_Bot1C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) collaborationZTFZTF15:28:17.098+39:56:50.362020-10-06 03:38:52.80016.17g-ZTFPSNZTF20abzumlrZTF
819512020-09-14 08:41:57ATLAS_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, D. O'Neill, P. Clark, M. Fulton, J. Gillanders, M. Dobson (Queen's University Belfast), T.-W. Chen (MPE), D. E. Wright (University of Minnesota), J. Anderson (ESO), A. Townsend (University of Manchester)ATLASATLAS15:28:17.096+39:56:50.502020-09-12 05:26:52.80018.916cyan-ATLASPSNATLAS20zstATLAS
Classification Reports
IDTime received (UT)SenderClassifier/sGroupClassificationRedshiftRelated filesAssoc. GroupsEnd prop. periodRemarksADS Bibcode
76472020-10-14 13:25:01Daniel PerleyDaniel Perley (LJMU), Jesper Sollerman (Stockholm), Christoffer Fremling (Caltech), Aishwarya Dahiwale (Caltech), Richard Walters (Caltech), on behalf of the Zwicky Transient Facility (ZTF)ZTFSLSN-I0.0645ZTFSpectrum is a good match to Ic and SLSN-I templates. Given the high luminosity (absolute magnitude -20.4) and blue color we classify it as a superluminous SN.2020TNSCR3125....1P

Comments

Object coordinates updated according to AT-report 86976 of Group GaiaAlerts
Previous RA, DEC: 15:28:17.089, +39:56:50.63 (232.071203215, +39.9473985687)
Updated RA, DEC: 15:28:17.080, +39:56:50.53 (232.071167, 39.947369)

Object coordinates updated according to AT-report 85598 of Group Pan-STARRS1
Previous RA, DEC: 15:28:17.098, +39:56:50.36 (232.0712434, +39.9473215)
Updated RA, DEC: 15:28:17.089, +39:56:50.63 (232.071203215, 39.9473985687)

Object coordinates updated according to AT-report 85246 of Group ZTF
Previous RA, DEC: 15:28:17.096, +39:56:50.50 (232.071232105, +39.9473621053)
Updated RA, DEC: 15:28:17.098, +39:56:50.36 (232.0712434, 39.9473215)