{
  "bibcode": "2008GCN..7452....1K",
  "body": "S. Karpov, G. Beskin, S. Bondar, C. Bartolini, G. Greco, A. Guarnieri,\nD. Nanni, A. Piccioni, F. Terra, E. Molinari, G. Chincarini, F.M. Zerbi,\nS. Covino, V. Testa, G. Tosti, F. Vitali, L.A. Antonelli, P. Conconi, G.\nCutispoto, G. Malaspina, L. Nicastro, E. Palazzi, E. Meurs, P.  Goldoni\n\nreport on behalf of the TORTOREM team:\n\nTORTORA wide-field optical camera (12 cm diameter, 20x25 deg FOV, TV-CCD,\nunfiltered) mounted on REM robotic 60-cm telescope located at La Silla\n(Chile) observed the field of GRB 080319B (GCN 7427, Racusin et al.)\nbefore, during and after the gamma-emission with 0.13 s time resolution.\n\nWe observe optical emission at the position given by Swift XRT:\n\n1. We did not detect any transient  brighter than 8.5m (unfiltered,\nnear B) at T-100 - T+16 s \n\n2. We detect rapidly rising OT (~5 second rise front) and observe it\nbetween T+16 and T+30, the peak brightness has been around 5 m\n\n3. Between T+30 and T+36 the observations have been paused due to\nrepointing of REM telescope\n\n4. Since T+36 we continuously observe the transient until it faded below\nthe detection limit (~8.5m) at T+90 s\n\nThe detailed analysis is in progress.\n\nThis message may be cited.",
  "circularId": 7452,
  "createdOn": 1205947994000,
  "email": "karpov@sao.ru",
  "subject": "GRB 080319B: TORTORA synchronous observation",
  "submitter": "Sergey Karpov at SAO RAS  <karpov@sao.ru>",
  "eventId": "GRB 080319B"
}