Discovery certificate for object 2020xss
TNS Astronomical Transient Report No. 86913 [ 2020TNSTR3196....1L ]

Date Received (UTC): 2020-10-21 11:49:30
Sender: MASTER (MASTER)
Reporting Group: MASTER     Discovery Data Source: MASTER

V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina, P.Balanutsa, A.Kuznetsov, F.Balakin, V.Vladimirov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva, D.Kuvshinov, D. Cheryasov (Lomonosov Moscow State University, SAI, Physics Department), R. Podesta, C.Lopez, F. Podesta, C.Francile (Observatorio Astronomico Felix Aguilar OAFA), R. Rebolo, M. Serra (The Instituto de Astrofisica de Canarias), D. Buckley (South African Astronomical Observatory), O.A. Gres, N.M. Budnev, O.Ershova (Irkutsk State University, API), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), V. Yurkov, A. Gabovich, Yu. Sergienko (Blagoveschensk Educational State University) report/s the discovery of a new astronomical transient.

IAU Designation: AT 2020xss
Discoverer internal name: MASTER OT J050152.74+770406.3
Coordinates (J2000): RA = 05:01:52.740 (75.46975) DEC = +77:04:06.30 (77.068417)
Discovery date: 2020-10-20 17:37:09.696 (JD=2459143.23414)


Remarks: MASTER discovered optical counterpart of Fermi LAT GRB 201020B

Photometry

Discovery (first detection):
Discovery date: 2020-10-20 17:37:09.696
Flux: 13.5 VegaMag
Filter: Clear-
Instrument: Other
Telescope: Other

Remarks: MASTER-Tavrida

Last non-detection:
Last non-detection date: 2020-01-02 18:53:01
Limiting flux: 19.5 VegaMag
Filter: Clear-
Instrument: Other
Telescope: Other

Remarks: MASTER-Tavrida

Details of the new object can be viewed here: https://www.wis-tns.org/object/2020xss