{
  "bibcode": "2007GCN..6645....1M",
  "body": "A. Melandri, (Liverpool JMU), C. Guidorzi (Uni-Bicocca/INAF-OAB),\nI.A. Steele, C.G. Mundell, D. Carter, R.J. Smith, C.J. Mottram,\nD.F. Bersier, S. Kobayashi, M.J. Burgdorf, M.F. Bode (Liverpool JMU),\nA. Gomboc (Ljubljana), P. O'Brien, E. Rol, N. Bannister (Leicester)\nreport\n\n\nOn 2007 Jul 21 at 13:47:14 UT the Faulkes Telescope South\nobserved the field of GRB070721A (trigger=285653, Ziaeepour\net al., GCN 6639).\n\nNo new source is detected inside the refined XRT error circle\n(Evans et al., GCN 6644) and we can set an upper limit of\nR > 20.0 between 3.9 and 4.8 hours after the trigger.",
  "circularId": 6645,
  "createdOn": 1185031542000,
  "email": "axm@astro.livjm.ac.uk",
  "subject": "GRB 070721A : Faulkes Telescope South optical limit",
  "submitter": "Andrea Melandri at Liverpool John Moores U  <axm@astro.livjm.ac.uk>",
  "eventId": "GRB 070721A"
}