{
  "bibcode": "2021GCN.31034....1L",
  "body": "V. Lipunov, V.Kornilov, E.Gorbovskoy, K.Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, \nD. Vlasenko, G.Antipov, D.Zimnukhov, V.Senik, T.Pogrosheva, E.Minkina,\nA.Chasovnikov, V.Topolev, V.Grinshpun, D.Kuvshinov,  D. Cheryasov\n(Lomonosov Moscow State University, SAI, Physics Department),\n\nR. Podesta, C.Lopez, F. Podesta, C.Francile \n(Observatorio Astronomico Felix Aguilar OAFA),\n\nR. Rebolo, M. Serra \n(The Instituto de Astrofisica de Canarias),\n\nD. Buckley \n(South African Astronomical Observatory),\n\nO.A. Gres, N.M. Budnev\n(Irkutsk State University, API),\n\nA. Tlatov, D. Dormidontov \n(Kislovodsk Solar Station of the Pulkovo Observatory),\n\nA. Gabovich, V.Yurkov \n(Blagoveschensk Educational State University)\n\n\nMASTER-Tavrida robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, SAI Crimea astronomical station) started inspect of the Fermi GRB 211102A ( Fermi GBM team, GCN 31029) errorbox  26099 sec after notice time and 26125 sec after trigger time at 2021-11-02 15:21:29 UT, with upper limit up to  17.3 mag. Observations started at twilight.  The observations began at zenith distance = 56 deg. The sun  altitude  is -9.4 deg. \n\nThe galactic latitude b = -4 deg., longitude l = 133 deg.\n\n\nReal time updated cover map and OT discovered available here: \nhttps://master.sai.msu.ru/site/master2/observ.php?id=1772827\n\nWe obtain a following upper limits.  \n\nTmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____________________|____________________________________|_____|_______|_______|________\n\n   26156 | 2021-11-02 15:21:29 |      MASTER-Tavrida | (02h 19m 20.35s , +52d 42m 02.2s) |   C |    60 | 17.2 |        \n   26235 | 2021-11-02 15:22:48 |      MASTER-Tavrida | (02h 32m 24.06s , +52d 41m 08.7s) |   C |    60 | 17.3 |        \nFilter C is a clear (unfiltred) band. \n\n\nThe observation and reduction will continue. \nThe message may be cited.",
  "circularId": 31034,
  "createdOn": 1635867024000,
  "email": "lipunov@xray.sai.msu.ru",
  "subject": "Fermi GRB 211102A: Global MASTER-Net observations report",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov@xray.sai.msu.ru>",
  "eventId": "GRB 211102A"
}