{
  "bibcode": "2025GCN.40673....1L",
  "body": "V.Lipunov, E.Gorbovskoy, A.Kuznetsov, K.Zhirkov, I.Panchenko, N.Tiurina, P.Balanutsa, V.Topolev, D.Vlasenko, \nG.Antipov,  A.Sankovich, Yu.Tselik, Ya.Kechin, V.Senik, A.Chasovnikov, K.Labsina, I. Gorbunov (Lomonosov MSU),\nO.Gress, N.Budnev (ISU),\nC.Francile,  F. Podesta, R.Podesta, E. Gonzalez  (Observatorio Astronomico Felix Aguilar (OAFA),\nA. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory),\nA.Sosnovskij (CrAO),\nA. Gabovich, V.Yurkov (Blagoveschensk Educational StateUniversity),\nD.Buckley (SAAO),\nR.Rebolo (The Instituto de Astrofisica de Canarias),\nL.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez,\nA.R.Corella, L.H.Rodriguez (INAOE, Guillermo Haro Astrophysics Observatory) \n\nMASTER-OAFA robotic telescope  (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L)  located in Argentina (OAFA observatory of San Juan National University) was pointed to the EP250610a ( EP Team et al., GCN 40660) errorbox  972 sec after notice time and 9094 sec after trigger time at 2025-06-10 06:57:24 UT, with upper limit up to  17.6 mag. The observations began at zenith distance = 82 deg. The sun  altitude  is -57.2 deg. \n\nMASTER-Kislovodsk robotic telescope  located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) was pointed to the EP250610a errorbox  44872 sec after notice time and 52993 sec after trigger time at 2025-06-10 19:09:03 UT, with upper limit up to  17.4 mag. The observations began at zenith distance = 15 deg. The sun  altitude  is -18.3 deg. \n\nThe galactic latitude b = 42 deg., longitude l = 61 deg.\n\n\nReal time updated cover map and OT discovered available here: \nhttps://master.sai.msu.ru/site/master2/observ.php?id=2898181\n\nWe obtain a following upper limits.  \n\nTmid-T0  |      Date Time      |          Site       |             Coord (J2000)          |Filt.| Expt. | Limit| Comment\n_________|_____________________|_____________________|____________________________________|_____|_______|_______|________\n\n    9229 | 2025-06-10 06:57:24 |         MASTER-OAFA | (16h 33m 32.66s , +38d 48m 08.6s) |   C |   270 | 17.6 |  Coadd \n   53024 | 2025-06-10 19:09:03 |   MASTER-Kislovodsk | (16h 31m 32.68s , +38d 50m 44.6s) |   C |    60 | 17.0 |        \n   53210 | 2025-06-10 19:12:09 |   MASTER-Kislovodsk | (16h 31m 34.53s , +38d 48m 49.2s) |   C |    60 | 17.4 |        \n   53547 | 2025-06-10 19:17:46 |   MASTER-Kislovodsk | (16h 31m 41.01s , +38d 50m 51.7s) |   C |    60 | 17.1 |        \n   53720 | 2025-06-10 19:20:40 |   MASTER-Kislovodsk | (16h 31m 35.46s , +38d 50m 56.6s) |   C |    60 | 16.0 |        \n   53893 | 2025-06-10 19:23:32 |   MASTER-Kislovodsk | (16h 31m 32.13s , +38d 48m 59.5s) |   C |    60 | 17.0 |        \nFilter C is a clear (unfiltred) band. \n\n\nThe observation and reduction will continue. \nThe message may be cited.\n",
  "submitter": "Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>",
  "circularId": 40673,
  "createdOn": 1749584180804,
  "eventId": "EP250610a",
  "submittedHow": "email",
  "subject": "EP250610a: Global MASTER-Net observations report"
}