RA/DEC (2000)
15:28:17.080 +39:56:50.53
232.071167 +39.947369
Type
SLSN-I
Redshift
0.0645
Discovery ReportClassification Report
Related AstroNotes: 2020-192, 2021-73, 2021-139
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)
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2020tcw - 2020-10-14 00:00:00 P60 / SEDM (ZTF)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)

Light curves

 ▌PS2_GPC2_i
 ▌P48_ZTF-Cam_g
 ▌Gaia_Gaia-photometric_G
 ▌ATLAS-HKO_ATLAS-02_cyan
 ▌PS1_GPC1_w
   
Pointer position (MJD, Mag, Abs.Mag): (0.00, 0.00, 0.00)
Spectra
 ID Obs-date (UT) Tel / Inst Exp-Time Observer/s Reducer/s Group Spectrum ascii file Spectrum fits file Spec. Type Assoc. Groups End prop. period Remarks
7660 2020-10-14 00:00:00 P60 / SEDM 1800 SEDmRobot auto ZTF tns_2020tcw_2020-10-14_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
i-P1 PS2_GPC2 2021-02-01 14:29:46 - 2021-02-01 14:29:46 2459247.104 - 2459247.104 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
189147 2021-02-01 14:29:46 2459247.104 19.1 0.17 20.7 ABMag i-P1 PS2_GPC2 45 Robot
g-ZTF P48_ZTF-Cam 2020-09-03 04:23:31 - 2020-10-08 03:54:43 2459095.683 - 2459130.663 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
164043 2020-10-08 03:54:43 2459130.663 16.16 ABMag g-ZTF P48_ZTF-Cam 30 ZTF
164042 2020-10-06 03:38:53 2459128.652 16.17 ABMag g-ZTF P48_ZTF-Cam 30 ZTF
164041 2020-09-03 04:23:31 2459095.683 19.42 ABMag g-ZTF P48_ZTF-Cam 30 ZTF [Last non detection]
G-Gaia Gaia_Gaia-photometric 2020-09-24 09:47:31 - 2020-10-17 21:53:17 2459116.908 - 2459140.412 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
166920 2020-10-17 21:53:17 2459140.412 16.36 0.2 ABMag G-Gaia Gaia_Gaia-photometric 60 Robot
166919 2020-09-24 09:47:31 2459116.908 21.5 ABMag G-Gaia Gaia_Gaia-photometric Robot [Last non detection]
cyan-ATLAS ATLAS-HKO_ATLAS-02 2020-09-08 05:57:07 - 2020-09-12 05:26:53 2459100.748 - 2459104.727 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
157551 2020-09-12 05:26:53 2459104.727 18.916 0.181 19.1 ABMag cyan-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
157550 2020-09-08 05:57:07 2459100.748 19.61 ABMag cyan-ATLAS ATLAS-HKO_ATLAS-02 30 Robot [Last non detection]
w-P1 PS1_GPC1 2018-06-10 06:46:05 - 2018-06-10 06:46:05 2458279.782 - 2458279.782 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
164669 2018-06-10 06:46:05 2458279.782 21.76 0.16 22 ABMag w-P1 PS1_GPC1 45 Robot
AT Reports
ID Time received (UT) Sender Reporter/s Reporting group Disc. Data Source RA DEC Discovery date (UT) Discovery Mag. Filter Related files AT Type Host name Internal name Assoc. Groups End prop. period Remarks ADS Bibcode Unreal Auto classification
98060 2021-02-02 10:32:41 PS2_Bot1 K. C. Chambers, T. de Boer, J. Bulger et al. Pan-STARRS Pan-STARRS 15:28:17.093 +39:56:50.72 2021-02-01 14:29:45.600 19.1 i-P1 PSN PS20jci Pan-STARRS N
86976 2020-10-21 14:17:28 Gaia_Bot1 S.T. Hodgkin, E. Breedt, A. Delgado et al. GaiaAlerts GaiaAlerts 15:28:17.080 +39:56:50.53 2020-10-17 21:53:16.800 16.36 G-Gaia PSN Gaia20ewr GaiaAlerts confirmed SLSN-I N
85598 2020-10-14 14:49:16 PS1_Bot1 K. C. Chambers, T. de Boer, J. Bulger et al. Pan-STARRS Pan-STARRS 15:28:17.089 +39:56:50.63 2018-06-10 06:46:04.800 21.76 w-P1 PSN PS20jci Pan-STARRS N
85246 2020-10-12 22:43:17 ZTF_Bot1 C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) collaboration ZTF ZTF 15:28:17.098 +39:56:50.36 2020-10-06 03:38:52.800 16.17 g-ZTF PSN ZTF20abzumlr ZTF N
81951 2020-09-14 08:41:57 ATLAS_Bot1 J. Tonry, L. Denneau, A. Heinze et al. ATLAS ATLAS 15:28:17.096 +39:56:50.50 2020-09-12 05:26:52.800 18.916 cyan-ATLAS PSN ATLAS20zst ATLAS 2020TNSTR2790....1T N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
7647 2020-10-14 13:25:01 Daniel Perley Daniel Perley (LJMU), Jesper Sollerman (Stockholm), Christoffer Fremling (Caltech), Aishwarya Dahiwale (Caltech), Richard Walters (Caltech), on behalf of the Zwicky Transient Facility (ZTF) ZTF SLSN-I 0.0645 1 ZTF Spectrum 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
Spectra
ID Obs-date (UT) Tel / Inst Exp-Time Observer/s Reducer/s Group Spectrum ascii file Spectrum fits file Spec. Type Assoc. Groups End prop. period Remarks
7660 2020-10-14 00:00:00 P60 / SEDM 1800 SEDmRobot auto ZTF tns_2020tcw_2020-10-14_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Wed, 10/21/2020 - 13:30

Object coordinates updated

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)

TNS
System

Wed, 10/14/2020 - 13:30

Object coordinates updated

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)

TNS
System

Mon, 10/12/2020 - 22:30

Object coordinates updated

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)