{
  "bibcode": "2020GCN.28456....1L",
  "body": "V. Lipunov, V.Kornilov, E.Gorbovskoy, N.Tiurina, P.Balanutsa, A.Kuznetsov, K.Zhirkov, F.Balakin,\nV.Vladimirov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, A.Chasovnikov, V.Topolev, \nA.Pozdnyakov, D.Cheryasov(Lomonosov Moscow State University, SAI, Physics Department),\nR. Podesta, C.Lopez, F. Podesta, C.Francile (Observatorio Astronomico Felix Aguilar 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, Yu. Sergienko (Blagoveschensk Educational State University)\n\n\nMASTER-SAAO robotic telescope\n(Global MASTER-Net http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, 2010, 30L)\nlocated in South Africa (South African Astronomical Observatory)\nstarted inspect of short GRB200916B (Ridnaia et al. GCN 28440) errorbox \n85399s after notice time (2 days 6634s after trigger time) at 2020-09-18 17:32:03 UT,\nwith upper limit  to  19.4 mag.\nThe observations began at zenith distance = 45 deg. The sun altitude was -13.4 deg.\nThe galactic latitude b = -60 deg., longitude l = 98 deg.\n\nReal time updated cover map:\nhttps://master.sai.msu.ru/site/master2/ligo_1.php?id=11529\n\nWe obtained following upper limits.\n\nTmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment\n   179525 | 2020-09-18 17:32:03 |         MASTER-SAAO | (15h 02m 46.17s , -37d 57m 43.2s) |   C |   180 | 19.4 |\n   180925 | 2020-09-18 17:55:23 |         MASTER-SAAO | (14h 49m 20.69s , -39d 56m 18.2s) |   C |   180 | 19.3 |\n   181124 | 2020-09-18 17:58:43 |         MASTER-SAAO | (14h 49m 16.07s , -39d 57m 17.9s) |   C |   180 | 19.3 |\nFilter C is a clear (unfiltred) band.\n\nThe observation and reduction will continue.\nThe message may be cited.",
  "circularId": 28456,
  "createdOn": 1600518433000,
  "email": "lipunov@xray.sai.msu.ru",
  "subject": "GRB 200916B: MASTER optical observation",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov@xray.sai.msu.ru>",
  "eventId": "GRB 200916B"
}