{
  "bibcode": "2008GCN..7625....1G",
  "body": "A. Gomboc (Ljubljana), C. Guidorzi (U. Bicocca/INAF-OAB), A. Melandri, I.A.\nSteele, C.G. Mundell, D.F. Bersier, M.F. Bode, M.J. Burgdorf, S.N. Fraser,\nS. Kobayashi, C.J. Mottram, R.J. Smith (Liverpool JMU), P. O'Brien, N.\nBannister, N. Tanvir (U. Leicester) report on behalf of larger GRB \ncollaboration:\n\nThe Liverpool Telescope observed the field of GRB 080413A (trigger=309096,\nBeardmore et al. GCN 7594) under poor weather conditions starting 2-hr after\nthe trigger. Observations continued with the Faulkes Telescope South.\n\nIn our coadded frames we do not detect any source at the position of the\noptical afterglow (Beardmore et al. GCN 7594, Rykoff & Rujopakarn GCN \n7593) down to the limiting magnitudes reported below.\n\n\nTelescope     Filter  Tstart(hr)  Tstop(hr)    Exposure(s)    M_lim\n----------------------------------------------------------------------\nLiverpool        R      2.0          2.5          760         15.7\nFaulkes South    R     12.2         12.2           30         19.2\n                  I     12.2         13.1         2080         21.7\n----------------------------------------------------------------------\n\nMagnitudes were calibrated with respect to USNOB1 R2 and I.",
  "circularId": 7625,
  "createdOn": 1208366589000,
  "email": "ag@astro.livjm.ac.uk",
  "subject": "GRB 080413A: Liverpool Telescope and Faulkes Telescope South optical observations",
  "submitter": "Andreja Gomboc at LT,ARI,Liverpool JMU  <ag@astro.livjm.ac.uk>",
  "eventId": "GRB 080413A"
}