[vsnet-grb-info 21453] GRB 181222B: Global MASTER Net observations of the short bright Fermi GRB error box.

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  23552
SUBJECT: GRB 181222B: Global MASTER Net  observations of the short bright Fermi GRB error box.
DATE:    18/12/23 10:53:54 GMT
FROM:    Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov at xray.sai.msu.ru>

V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina,  P.Balanutsa, A.Kuznetsov, V.Vladimirov, D. Vlasenko
Lomonosov Moscow State University, SAI, Physics Department

D. Buckley, 
South African Astronomical Observatory

R. Rebolo, M. Serra, N. Lodieu, G. Israelian, L. Suarez-Andres
The Instituto de Astrofisica de Canarias

A. Tlatov, V.Senik, D. Dormidontov
Kislovodsk Solar Station of the Pulkovo Observatory

O. Gres, N.M. Budnev, O.Ershova, Yu.Ishmuhametov
Applied Physics Institute, Irkutsk State University

V. Yurkov, A. Gabovich, Yu. Sergienko
Blagoveschensk Educational State University, Blagoveschensk

R. Podesta, Carlos Lopez, F. Podesta, C.Francile
Observatorio Astronomico Felix Aguilar (OAFA)

H. Levato 
Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE)


MASTER-IAC robotic telescope (4 square degreess,Global MASTER-Net: 
http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, 
vol. 2010, 30L) located in Spain (IAC Teide Observatory) was pointed to 
the  GRB181222B 107 sec after trigger time 
at 2018-12-22 20:13 24 UT in two polarizations. On our first ( 20s 
exposure )  set we  not found  optical transient within FERMI error-box (ra=311.146 dec=22.8597 r=1.6)

The real time  cover map is available
https://master.sai.msu.ru/site/master2/event.php??not=2018-12-22%2020:20:57&sat=FERMI&gcrd=(311.146d,22.8597d)&eb=1.6&trig=2018-12-22%2020:11:37&n=GRB181222.84


====================================================================

The galactic latitude b = -13 deg., longitude l = 67 deg.
The observations made on zenit distance = 62 deg.The moon (100 % bright 
part) is 25 deg. above the horizon. The distance between  moon and  object 
is 122
The sun  altitude  is -27.2 deg.
The object can be observed till sunrise at 2018-12-23 07:52:51


MASTER-Amur robotic telescope (Global MASTER-Net: 
http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, 
vol. 2010, 30L) located in Russia (Blagoveshchensk State Pedagogical 
University) was starting survey on the FERMI  GRB181222B error-box (20 
44 35 dec=+22 51 36, r=1.6)  45931 sec after notice time and 46503 sec 
after trigger time at 2018-12-23 09:06:40 UT. The 5-sigma upper limit on 
our first (60s exposure)  set is about 16.5 mag


The full information about this GRB181222B available here 
https://176.123.192.71//master2/grb.php?not=2018-12-22+20%3A21%3A08.37&sat=FERMI&gcrd=%28311.146d%2C22.86d%29&eb=1.6&trig=2018-12-22+20%3A11%3A37&n=GRB181222.84
The message may be cited.


====================================================================


The galactic latitude b = -13 deg., longitude l = 67 deg.
The observations made on zenit distance = 44 deg.
The moon (99 % bright 
part) is  8 deg. above the horizon. The distance between  moon and  object 
is 127.

  Observations started at twilight.
The sun  altitude  is -14.6 deg.
The object can be observed till 2018-12-23 14:13:01.

The observations and reduction continue.


The message may be cited.