{
  "bibcode": "2021GCN.29447....1L",
  "body": "V. Lipunov, V.Kornilov, E.Gorbovskoy,N.Tiurina,P.Balanutsa,F.Balakin, V.Vladimirov, A.Kuznetsov,K.Zhirkov,D. Vlasenko, I.Gorbunov, D.Zimnukhov, \nV.Senik, A.Chasovnikov,A.Pozdnyakov,V.Topolev, D.Cheryasov(Lomonosov Moscow State University, SAI, Physics Department),\nR. Podesta, C.Lopez, F. Podesta, C.Francile (Observatorio Astronomico FelixAguilar OAFA),\nR. Rebolo, M. Serra(The Instituto de Astrofisica de Canarias),\nD. Buckley (South African Astronomical Observatory),\nO.A. Gres, N.M. Budnev (Irkutsk State University, API),\nA. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory),\nA. Gabovich, V.Yurkov (Blagoveschensk Educational StateUniversity)\n\nMASTER-SAAO robotic telescope (MASTER-Net: http://observ.pereplet.ru \nLipunov et al.,2010,Advances in Astronomy,2010,30L)\nautomatically was pointed to Swift GRB 200210A (Laha et al. GCN 29444,Ttrigger 02:00:27UT)\nat 2021-02-10 02:03:54UT (first exposition),\nbut the alert altitude was 07 degrees (under the roof, so there is no stars at first images)\nand roses above the roof only 27min after trigger time  (Lipunov et al. GCN 29445).\n\nMASTER auto-detection system found optical afterglow\n  MASTER OT J173104.99+143945.9 (discovered by Swift-UVOT, GCN 29444).\nWe observed it untill sunrise (MASTER automatical programm of Swift alert observations).\n\nThe reduction of MASTER wide field and very wide field cameras images will be continued.\nThis message may be cited.",
  "circularId": 29447,
  "createdOn": 1612940594000,
  "email": "lipunov@xray.sai.msu.ru",
  "subject": "GRB 210210A: MASTER afterglow observation",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov@xray.sai.msu.ru>",
  "eventId": "GRB 210210A"
}