{
  "bibcode": "2021GCN.31315....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\nB.L.Carrasco, J.R.Valdes,V.Chavushyan, C.J.Martinez, V.M.Patino Alvarez,\nM.L.H.Rodriguez (INAOE, OAGH)\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-Kislovodsk robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the Swift GRB211227.98 (trigger No 1091101,08h 48m 30.24s , -02d 42m 07.2s, R=0.05) errorbox  32 sec after notice time and 56 sec after trigger time at 2021-12-27 23:33:03 UT, with upper limit up to  14.4 mag. The observations began at zenith distance = 46 deg. The sun  altitude  is -54.9 deg. \n\nThe galactic latitude b = 25 deg., longitude l = 230 deg.\n\n\nReal time updated cover map and OT discovered available here: \nhttps://master.sai.msu.ru/site/master2/observ.php?id=1829076\n\nWe obtain a following upper limits.  \n\nTmid-T0  |          Site       |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____|_______|______|________\n\n      62 |   MASTER-Kislovodsk |  P- |    10 | 14.4 |        \n\n\nThe observation and reduction will continue. \nThe message may be cited.",
  "circularId": 31315,
  "createdOn": 1640648194000,
  "email": "lipunov@xray.sai.msu.ru",
  "subject": "Swift GRB211227.98: Global MASTER-Net observations report",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov@xray.sai.msu.ru>",
  "eventId": "GRB 211227.98"
}