RA/DEC (2000)
02:03:56.100 -23:18:50.22
30.98375 -23.31395
Type
SN IIn
Redshift
0.017
Reporting Group
ASAS-SN
Discovering Data Source
ASAS-SN
Discovery Date
2020-06-30 02:38:24.000
TNS AT
Y
Public
Y
Host Name
NGC 0808
Host Redshift
0.016558
Discovery Mag
16.8
Filter
g-Sloan
Reporter/s
K. Z. Stanek, C. S. Kochanek, for the ASAS-SN team

Spectra

 SN_2020nub - 2020-07-24 00:00:00 Keck1 / LRIS (UCSC)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

 ASASSN-5_Payne-Gaposchkin_g
 Gaia_Gaia-photometric_G
 ATLAS-MLO_ATLAS-01_orange
 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
7183 2020-07-24 00:00:00 Keck1 / LRIS Siebert, Foley, Dimitriadis G. Dimitriadis UCSC tns_2020nub_2020-07-24_Keck1_LRIS_UCSC.flm Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
g-Sloan ASASSN-5_Payne-Gaposchkin 2020-06-23 02:52:48 - 2020-06-30 02:38:24 2459023.62 - 2459030.61 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
145948 2020-06-30 02:38:24 2459030.61 16.8 ABMag g-Sloan ASASSN-5_Payne-Gaposchkin
145947 2020-06-23 02:52:48 2459023.62 18.2 ABMag g-Sloan ASASSN-5_Payne-Gaposchkin [Last non detection]
G-Gaia Gaia_Gaia-photometric 2019-12-26 01:19:12 - 2020-07-20 02:36:58 2458843.555 - 2459050.609 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
153011 2020-07-20 02:36:58 2459050.609 16.28 0.2 ABMag G-Gaia Gaia_Gaia-photometric 60 Robot
153010 2019-12-26 01:19:12 2458843.555 21.5 ABMag G-Gaia Gaia_Gaia-photometric Robot [Last non detection]
orange-ATLAS ATLAS-MLO_ATLAS-01 2020-02-08 05:38:24 - 2020-07-01 14:11:02 2458887.735 - 2459032.091 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
146047 2020-07-01 14:11:02 2459032.091 15.904 0.018 19.18 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
146046 2020-02-08 05:38:24 2458887.735 18.22 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot [Last non detection]
w-P1 PS1_GPC1 2019-11-03 08:44:10 - 2019-11-03 08:44:10 2458790.864 - 2458790.864 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
157134 2019-11-03 08:44:10 2458790.864 21.19 0.22 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
81678 2020-09-10 18:57:11 PS1_Bot1 K. C. Chambers, T. de Boer, J. Bulger et al. Pan-STARRS Pan-STARRS 02:03:56.095 -23:18:50.25 2019-11-03 08:44:09.600 21.19 w-P1 PSN PS20hfm Pan-STARRS N
79579 2020-08-10 22:57:35 Gaia_Bot1 S.T. Hodgkin, E. Breedt, A. Delgado et al. GaiaAlerts GaiaAlerts 02:03:56.100 -23:18:50.22 2020-07-20 02:36:57.600 16.28 G-Gaia Other Gaia20drn GaiaAlerts candidate SN in galaxy NGC 808 N
75565 2020-07-01 21:45:34 ATLAS_Bot1 J. Tonry, L. Denneau, A. Heinze et al. ATLAS ATLAS 02:03:56.088 -23:18:50.07 2020-07-01 14:11:02.400 15.904 orange-ATLAS PSN ATLAS20rvn ATLAS N
75511 2020-06-30 14:37:35 Krzysztof Stanek K. Z. Stanek, C. S. Kochanek, for the ASAS-SN team ASAS-SN ASAS-SN 02:03:56.167 -23:18:50.51 2020-06-30 02:38:24.000 16.8 g-Sloan PSN NGC 0808 ASASSN-20ho ASAS-SN In two epochs, on the rise, close in position to SN 2004ds 2020TNSTR1987....1S N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
7171 2020-07-24 17:01:26 Georgios Dimitriadis G. Dimitriadis, M. R. Siebert, R. J. Foley (UCSC) UCSC SN IIn 0.017 1 UCSC ATel #13892 2020TNSCR2259....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
7183 2020-07-24 00:00:00 Keck1 / LRIS Siebert, Foley, Dimitriadis G. Dimitriadis UCSC tns_2020nub_2020-07-24_Keck1_LRIS_UCSC.flm Object

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 79579 of Group GaiaAlerts
Previous RA, DEC: 02:03:56.088, -23:18:50.07 (30.983698, -23.313908)
Updated RA, DEC: 02:03:56.100, -23:18:50.22 (30.98375, -23.31395)

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 75565 of Group ATLAS
Previous RA, DEC: 02:03:56.167, -23:18:50.51 (30.984029, -23.31403)
Updated RA, DEC: 02:03:56.088, -23:18:50.07 (30.983698, -23.313908)

Ofer
Yaron

DEC corrected following the reporter's request

From: -23:18:56.51 To: -23:18:50.51