{
  "bibcode": "2023GCN.33216....1L",
  "body": "V. Lipunov, V.Kornilov, E.Gorbovskoy, K.Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, D. Vlasenko, \nG.Antipov, D.Zimnukhov, V.Senik, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov,  D.Cheryasov, Ya.Kechin\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\nL.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez, A.R.Corella, L.H.Rodriguez \n(INAOE, Guillermo Haro Astrophysics Observatory),\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) started inspect of the Fermi GRB 230124A ( Fermi GBM team, GCN 33215) errorbox  521 sec after notice time and 554 sec after trigger time at 2023-01-24 15:28:00 UT, with upper limit up to  19.0 mag. Observations started at twilight.  The observations began at zenith distance = 51 deg. The sun  altitude  is -13.9 deg. \n\nThe galactic latitude b = -31 deg., longitude l = 197 deg.\n\n\nReal time updated cover map and OT discovered available here: \nhttps://master.sai.msu.ru/site/master2/observ.php?id=2194256\n\nWe obtain a following upper limits.  \n\nTmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____________________|____________________________________|_____|_______|_______|________\n\n     609 | 2023-01-24 15:28:00 |   MASTER-Kislovodsk | (04h 24m 10.16s , -01d 16m 01.3s) |   C |   110 | 18.1 |        \n     754 | 2023-01-24 15:28:00 |   MASTER-Kislovodsk | (04h 24m 10.17s , -01d 16m 01.3s) |   C |   400 | 19.0 |  Coadd \n     749 | 2023-01-24 15:30:10 |   MASTER-Kislovodsk | (04h 24m 10.23s , -01d 17m 43.1s) |   C |   130 | 18.3 |        \n     913 | 2023-01-24 15:32:39 |   MASTER-Kislovodsk | (04h 24m 12.35s , -01d 15m 53.2s) |   C |   160 | 18.4 |        \nFilter C is a clear (unfiltred) band. \n\n\nThe observation and reduction will continue. \nThe message may be cited.",
  "circularId": 33216,
  "createdOn": 1674575113000,
  "email": "lipunov@xray.sai.msu.ru",
  "subject": "Fermi GRB 230124A: Global MASTER-Net observations report",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs  <lipunov@xray.sai.msu.ru>",
  "eventId": "GRB 230124A"
}