RA/DEC (2000)
20:14:18.620 -18:10:56.57
303.577583 -18.182381
Type
SLSN-I
Redshift
0.115
Discovery ReportClassification Report
Related AstroNotes: 2021-136
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2021-03-15 15:00:00.000
TNS AT
Y
Public
Y
Discovery Mag
18.192
Filter
orange-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)
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2021fpl - 2021-04-26 05:17:50 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)

Light curves

 ▌PS2_GPC2_w
 ▌P48_ZTF-Cam_g
 ▌Gaia_Gaia-photometric_G
 ▌ATLAS-MLO_ATLAS-01_orange
 ▌ATLAS-MLO_ATLAS-01_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
9525 2021-04-26 05:17:50 LT / SPRAT S. Prentice M. Deckers TCD tns_2021fpl_2021-04-26_05-17-50.113_LT_SPRAT_TCD.txt Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
w-P1 PS2_GPC2 2021-04-14 14:38:24 - 2021-04-14 14:38:24 2459319.11 - 2459319.11 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
219669 2021-04-14 14:38:24 2459319.11 17.68 0.02 22 ABMag w-P1 PS2_GPC2 45 Robot
g-ZTF P48_ZTF-Cam 2021-04-30 11:31:12 - 2021-05-11 10:07:41 2459334.98 - 2459345.922 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
212680 2021-05-11 10:07:41 2459345.922 18.02 ABMag g-ZTF P48_ZTF-Cam 30 ZTF
212679 2021-04-30 11:31:12 2459334.98 17.96 ABMag g-ZTF P48_ZTF-Cam 30 ZTF
G-Gaia Gaia_Gaia-photometric 2020-11-30 21:47:31 - 2021-04-13 14:54:14 2459184.408 - 2459318.121 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
214484 2021-04-13 14:54:14 2459318.121 17.81 0.2 ABMag G-Gaia Gaia_Gaia-photometric 60 Robot
214483 2020-11-30 21:47:31 2459184.408 21.5 ABMag G-Gaia Gaia_Gaia-photometric Robot [Last non detection]
orange-ATLAS ATLAS-MLO_ATLAS-01 2021-03-15 15:00:00 - 2021-03-15 15:00:00 2459289.125 - 2459289.125 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
197744 2021-03-15 15:00:00 2459289.125 18.192 0.137 19.07 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
cyan-ATLAS ATLAS-MLO_ATLAS-01 2020-12-12 05:06:43 - 2020-12-12 05:06:43 2459195.713 - 2459195.713 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
197743 2020-12-12 05:06:43 2459195.713 18.86 ABMag cyan-ATLAS ATLAS-MLO_ATLAS-01 30 Robot [Last non detection]
w-P1 PS1_GPC1 2021-04-18 14:31:12 - 2021-04-18 14:31:12 2459323.105 - 2459323.105 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
217718 2021-04-18 14:31:12 2459323.105 17.76 0.03 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
112712 2021-06-08 09:11:17 PS2_Bot1 K. C. Chambers, T. de Boer, J. Bulger et al. Pan-STARRS Pan-STARRS 20:14:18.615 -18:10:56.50 2021-04-14 14:38:24.000 17.68 w-P1 PSN PS21evf Pan-STARRS N
111765 2021-06-03 00:39:03 PS1_Bot1 K. C. Chambers, T. de Boer, J. Bulger et al. Pan-STARRS Pan-STARRS 20:14:18.615 -18:10:56.49 2021-04-18 14:31:12.000 17.76 w-P1 PSN PS21evf Pan-STARRS This transient was discovered with the help of citizen science project Supernova Hunters run by Zooniverse. The candidate was identified by volunteers including Jahnavi M.P., Amy Loeschner and B L Goodwin N
110059 2021-05-19 14:25:56 Gaia_Bot1 S.T. Hodgkin, E. Breedt, A. Delgado et al. GaiaAlerts GaiaAlerts 20:14:18.620 -18:10:56.57 2021-04-13 14:54:14.400 17.81 G-Gaia PSN Gaia21ckf GaiaAlerts confirmed SLSN-I N
109246 2021-05-11 17:41:53 ZTF_Bot1 C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) collaboration ZTF ZTF 20:14:18.626 -18:10:56.58 2021-04-30 11:31:12.000 17.96 g-ZTF PSN ZTF21aaxwpyv ZTF N
102354 2021-03-16 01:10:22 ATLAS_Bot1 J. Tonry, L. Denneau, A. Heinze et al. ATLAS ATLAS 20:14:18.606 -18:10:56.83 2021-03-15 15:00:00.000 18.192 orange-ATLAS PSN ATLAS21iao ATLAS 2021TNSTR.771....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
9515 2021-04-26 10:32:20 Maxime Deckers M. Deckers, S. Prentice, K. Maguire, G. Dimitriadis, M. Magee, L. Harvey, J. Terwel (TCD) TCD SLSN-I 0.115 1 TCD Using our Python based classification tool we find matches to Type Ic supernovae at z between 0.11 and 0.12. The light curve has been rising for ~40 d. At this redshift and current magnitude it is more luminous than -21 mag. 2021TNSCR1365....1D
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
9525 2021-04-26 05:17:50 LT / SPRAT S. Prentice M. Deckers TCD tns_2021fpl_2021-04-26_05-17-50.113_LT_SPRAT_TCD.txt Object

Comments

TNS
System

Wed, 05/19/2021 - 13:30

Object coordinates updated

Object coordinates updated according to AT-report 110059 of Group GaiaAlerts
Previous RA, DEC: 20:14:18.626, -18:10:56.58 (303.5776102, -18.1823839)
Updated RA, DEC: 20:14:18.620, -18:10:56.57 (303.577583, -18.182381)

TNS
System

Tue, 05/11/2021 - 17:30

Object coordinates updated

Object coordinates updated according to AT-report 109246 of Group ZTF
Previous RA, DEC: 20:14:18.606, -18:10:56.83 (303.577525714, -18.1824528571)
Updated RA, DEC: 20:14:18.626, -18:10:56.58 (303.5776102, -18.1823839)