{
  "circularId": 37485,
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
  "bibcode": "2024GCN.37485....1L",
  "subject": "Fermi  trigger No 747920561: Global MASTER-Net observations report",
  "createdOn": 1726230646723,
  "submittedHow": "email-legacy",
  "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-Amur robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Russia (Blagoveshchensk State Pedagogical University) started inspect of the Fermi GRB240913.49 (trigger No 747920561,00h 58m 19.20s , +12d 18m 36.0s, R=3.82) errorbox  1518 sec after notice time and 1525 sec after trigger time at 2024-09-13 12:08:01 UT, with upper limit up to  13.5 mag. The observations began at zenith distance = 69 deg. The sun  altitude  is -21.5 deg. \n\nThe galactic latitude b = -50 deg., longitude l = 127 deg.\n\n\nReal time updated cover map and OT discovered available here: \nhttps://master.sai.msu.ru/site/master2/observ.php?id=2599965\n\nWe obtain a following upper limits.  \n\nTmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____________________|____________________________________|_____|_______|_______|________\n\n    1616 | 2024-09-13 12:08:01 |         MASTER-Amur | (00h 59m 51.76s , +12d 48m 07.2s) |   C |   180 | 12.9 |        \n    1815 | 2024-09-13 12:11:21 |         MASTER-Amur | (00h 59m 51.93s , +12d 47m 50.0s) |   C |   180 | 13.0 |        \n    2015 | 2024-09-13 12:14:40 |         MASTER-Amur | (00h 59m 52.09s , +12d 47m 37.7s) |   C |   180 | 13.5 |        \n    2214 | 2024-09-13 12:18:00 |         MASTER-Amur | (00h 59m 52.33s , +12d 47m 24.9s) |   C |   180 | 13.0 |        \nFilter C is a clear (unfiltred) band. \n\n\nThe observation and reduction will continue. \nThe message may be cited.\n\n"
}