{
  "bibcode": "2019GCN.24776....1L",
  "body": "V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina, P.Balanutsa, A.Kuznetsov, F.Balakin, \nV.Vladimirov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva, D.Kuvshinov \n(Lomonosov Moscow State University, SAI, Physics Department),\n\nR. Podesta, C.Lopez, F. Podesta, C.Francile \n(Observatorio Astronomico Felix Aguilar OAFA),\n\nH.Levato \n(Instituto de Ciencias Astronomicas, de la Tierra y del Espacio ICATE),\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, O.Ershova \n(Irkutsk State University, API),\n\nA. Tlatov, D. Dormidontov \n(Kislovodsk Solar Station of the Pulkovo Observatory),\n\nV. Yurkov, A. Gabovich, Yu. Sergienko \n(Blagoveschensk Educational State University)\n\n\n\n\nMASTER-SAAO robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in South Africa (South African Astronomical Observatory) started inspect of the Fermi GRB190610.28 (trigger No 581841498, 10h 22m 04.08s , -47d  1m 01.20s, R=24.63) errorbox  36430 sec after trigger time at 2019-06-10 16:45:23 UT, with upper limit up to  19.3 mag. Observations started at twilight.  The observations began at zenit distance = 19 deg. The sun  altitude  is -13.4 deg. \n\nThe galactic latitude b = -60 deg., longitude l = 98 deg.\n\n\nReal time updated cover map and OT discovered available here: \nhttps://master.sai.msu.ru/site/master2/observ.php?id=1044320\n\nWe obtain a following upper limits.  \n\nTmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____________________|____________________________________|_____|_______|_______|________\n\n   36520 | 2019-06-10 16:45:23 |         MASTER-SAAO | ( 11h 59m 16.63s , -52d 32m 36.30s) |   I |   180 | 16.7 |        \n   36732 | 2019-06-10 16:48:54 |         MASTER-SAAO | ( 11h 59m 18.50s , -52d 32m 46.65s) |   I |   180 | 17.3 |        \n   36912 | 2019-06-10 16:48:54 |         MASTER-SAAO | ( 11h 59m 18.50s , -52d 32m 46.71s) |   I |   540 | 18.0 |  Coadd \n   36943 | 2019-06-10 16:52:26 |         MASTER-SAAO | ( 11h 59m 18.86s , -52d 32m 33.85s) |   I |   180 | 17.5 |        \n   37160 | 2019-06-10 16:56:02 |         MASTER-SAAO | ( 11h 59m 18.17s , -52d 32m 38.31s) |   I |   180 | 17.6 |        \n   37553 | 2019-06-10 16:59:35 |         MASTER-SAAO | ( 11h 59m 18.60s , -52d 33m 04.63s) |   V |   540 | 19.3 |  Coadd \n\n\nThe observation and reduction will continue. \nThe message may be cited.",
  "circularId": 24776,
  "createdOn": 1560187920000,
  "email": "lipunov@xray.sai.msu.ru",
  "subject": "Fermi  trigger No 581841498 Global MASTER-Net observations report",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov@xray.sai.msu.ru>"
}