GCN Circular 28275
Subject
GRB 200815A: MASTER optical observations
Date
2020-08-20T20:09:03Z (4 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina, K.Zhirkov,P.Balanutsa,A.Kuznetsov,F.Balakin,
V.Vladimirov, A.Chasovnikov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Topolev, V.Senik, T.Pogrosheva,
D.Kuvshinov(Lomonosov Moscow State University, SAI, Physics Department),
D. Buckley(South African Astronomical Observatory),
A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory),
R. Podesta, C.Lopez, F. Podesta, C.Francile(Observatorio Astronomico Felix Aguilar OAFA),
H.Levato(Instituto de Ciencias Astronomicas, de la Tierra y del Espacio ICATE),
R. Rebolo, M. Serra(The Instituto de Astrofisica de Canarias),
O.A. Gres, N.M. Budnev (Irkutsk State University, API),
A. Gabovich, Yu. Sergienko, V.Yurkov (Blagoveschensk Educational State University)
MASTER Global Robotic Net (Lipunov et al., 2010, Advances in Astronomy, vol. 2010, p.30L)
started GRB 2008015A (IPN triangulation, Hurley et al. GCN 28274) errorbox observations
22881 sec after notice time (1 days 3261 sec after trigger time) at
2020-08-16 21:57:09 UT in MASTER-Tavrida, with upper limit up to 19.0 mag.
The observations began at zenith distance = 76 deg. The sun altitude was -32.5 deg.
MASTER-IAC robotic telescope located in Spain (IAC Teide Observatory)
started inspect of the IPN GRB200815.88 errorbox 26435 sec after notice
time and 1 days 6815 sec after trigger time at 2020-08-16 22:56:23 UT,
with upper limit up to 17.4 mag. The observations began at zenith
distance = 82 deg. The sun altitude is -37.9 deg.
The galactic latitude b = -60 deg., longitude l = 98 deg.
We didn't find OT.
Real time updated cover map is available here:
https://master.sai.msu.ru/site/master2/ligo_1.php?id=11510
We obtained the following upper limits.
Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________
89752 | 2020-08-16 21:57:09 | MASTER-Tavrida | (23h 39m 20.64s , -28d 07m 25.9s) | C | 180 | 19.0 |
89952 | 2020-08-16 22:00:30 | MASTER-Tavrida | (23h 48m 25.29s , -28d 08m 52.4s) | C | 180 | 18.8 |
90803 | 2020-08-16 22:14:41 | MASTER-Tavrida | (23h 48m 28.58s , -28d 07m 39.8s) | C | 180 | 18.9 |
93305 | 2020-08-16 22:56:23 | MASTER-IAC | (23h 45m 32.32s , -28d 00m 54.2s) | C | 180 | 17.1 |
93915 | 2020-08-16 23:06:33 | MASTER-IAC | (23h 45m 29.43s , -28d 00m 38.4s) | C | 180 | 17.4 |
Filter C is a clear (unfiltred) band.
Cover map is available at
http://master.sai.msu.ru/static/images/MASTERGRB200815Acmap.png
The observation and reduction will continue.
The message may be cited.