{
  "subject": "Fermi GRB 240118B: Global MASTER-Net observations report",
  "bibcode": "2024GCN.35571....1L",
  "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 GRB 240118B ( Fermi GBM team, GCN 35562) errorbox  43321 sec after notice time and 43354 sec after trigger time at 2024-01-19 00:13:40 UT, with upper limit up to  18.5 mag. The observations began at zenith distance = 65 deg. The sun  altitude  is -33.7 deg. \n\nThe galactic latitude b = -51 deg., longitude l = 269 deg.\n\n\nReal time updated cover map and OT discovered available here: \nhttps://master.sai.msu.ru/site/master2/observ.php?id=2359396\n\nWe obtain a following upper limits.  \n\nTmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____________________|____________________________________|_____|_______|_______|________\n\n   43385 | 2024-01-19 00:13:40 |         MASTER-SAAO | (03h 19m 56.04s , -54d 00m 56.6s) |   C |    60 | 18.4 |        \n   43476 | 2024-01-19 00:15:11 |         MASTER-SAAO | (03h 30m 18.84s , -53d 48m 55.0s) |   C |    60 | 18.3 |        \n   43476 | 2024-01-19 00:15:11 |         MASTER-SAAO | (03h 33m 26.11s , -54d 01m 50.8s) |   C |    60 | 18.1 |        \n   43556 | 2024-01-19 00:16:31 |         MASTER-SAAO | (03h 06m 29.36s , -55d 42m 49.0s) |   C |    60 | 18.5 |        \n   43556 | 2024-01-19 00:16:31 |         MASTER-SAAO | (03h 09m 45.21s , -55d 55m 46.4s) |   C |    60 | 18.5 |        \n   43636 | 2024-01-19 00:17:51 |         MASTER-SAAO | (03h 33m 30.51s , -55d 40m 53.5s) |   C |    60 | 18.1 |        \nFilter C is a clear (unfiltred) band. \n\n\nThe observation and reduction will continue. \nThe message may be cited.\n\n",
  "submittedHow": "email-legacy",
  "createdOn": 1705624303891,
  "circularId": 35571,
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
  "eventId": "GRB 240118B"
}