{
  "bibcode": "2024GCN.36926....1L",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
  "body": "V. Lipunov, V.Kornilov, E. Gorbovskoy, K. Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, V.Senik,  D. Vlasenko,\nG.Antipov, D.Zimnukhov, E.Minkina, A.Chasovnikov, V.Topolev, D.Kuvshinov, D. Cheryasov, Ya.Kechin, Yu.Tselik, A. Sosnovskij\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. Gress, N.M. Budnev, O.Ershova\n(Irkutsk State University, API),\n\nL.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez,\nA.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\nV. Yurkov, A. Gabovich\n(Blagoveschensk Educational State University)\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 GRB240723.38 (trigger No 743418632,09h 02m 28.08s , +02d 19m 01.2s, R=36.23) errorbox  27246 sec after notice time and 27281 sec after trigger time at 2024-07-23 16:45:08 UT, with upper limit up to  18.0 mag. Observations started at twilight.  The observations began at zenith distance = 52 deg. The sun  altitude  is -10.4 deg. \n\nThe galactic latitude b = 30 deg., longitude l = 228 deg.\n\n\nReal time updated cover map and OT discovered available here: \nhttps://master.sai.msu.ru/site/master2/observ.php?id=2538802\n\nWe obtain a following upper limits.  \n\nTmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____________________|____________________________________|_____|_______|_______|________\n\n   27311 | 2024-07-23 16:45:08 |         MASTER-SAAO | (11h 28m 21.09s , +03d 06m 47.8s) |   C |    60 | 17.0 |        \n   27590 | 2024-07-23 16:49:47 |         MASTER-SAAO | (11h 20m 20.35s , +03d 07m 15.5s) |   C |    60 | 17.7 |        \n   27670 | 2024-07-23 16:51:07 |         MASTER-SAAO | (11h 28m 15.58s , +03d 06m 12.9s) |   C |    60 | 18.0 |        \n   28577 | 2024-07-23 17:05:14 |         MASTER-SAAO | (09h 25m 23.76s , -11d 27m 13.0s) |   C |   180 | 16.9 |        \nFilter C is a clear (unfiltred) band. \n\n\nThe observation and reduction will continue. \nThe message may be cited.\n\n",
  "subject": "Fermi  trigger No 743418632: Global MASTER-Net observations report",
  "submittedHow": "email-legacy",
  "createdOn": 1721755860951,
  "circularId": 36926
}