{
  "bibcode": "2022GCN.31741....1Y",
  "body": "V. Yurkov, A. Gabovich, Yu. Sergienko\nBlagoveschensk Educational State University, Blagoveschensk\n\nV. Lipunov, E. Gorbovskoy, V.Kornilov, D.Kuvshinov, N.Tyurina, P.Balanutsa,\nA.Kuznetsov, D. Vlasenko, F. Balakin, I. Gorbunov\nLomonosov Moscow State University, Sternberg Astronomical Institute, Moscow State University\n\nK. Ivanov, O. Gres, N.M. Budnev, S. Yazev, O. Chuvalaev, V. Poleshchuk\nIrkutsk State University\n\nA. Tlatov, V.Senik, A.V. Parhomenko, D. Dormidontov\nKislovodsk Solar Station of the Pulkovo Observatory\n\nR. Podesta, Carlos Lopez and F. Podesta\nObservatorio Astronomico Felix Aguilar (OAFA)\n\nHugo Levato\nInstituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE)\n\nR. Rebolo, M. Serra, N. Lodieu, G. Israelian, L. Suarez-Andres\nThe Instituto de Astrofisica de Canarias\n\nD. Buckley, S. Potter, A. Kniazev, M. Kotze\nSouth African Astronomical Observatory\n\nMASTER-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 pointed to the  GRB220311.69 25 sec after notice time and 53 sec after trigger time at 2022-03-11 16:34:45 UT. On our first (10s exposure)  set we  found 1 optical transient within Integral error-box (ra=184.033 dec=66.7611 r=0.054167) brighter than  14.0.\n\n\n T-Tmid      Date      Time       Expt.        Ra                Dec           Mag\n---------|---------------------|-------|-----------------|-----------------|-------\n      58   2022-03-11 16:34:45      10   (12h 16m 05.22s , +66d 47m 23.8s)     13.5\n\nThe 5-sigma upper limit has been about  14.0mag\nThe message may be cited.",
  "circularId": 31741,
  "createdOn": 1647017126000,
  "email": "lipunov@xray.sai.msu.ru",
  "subject": "Integral GRB220311.69: Global MASTER-Net OT detection",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov@xray.sai.msu.ru>",
  "eventId": "GRB 220311.69"
}