{
  "bibcode": "2009GCN..9630....1C",
  "body": "GRB 090709: Faulkes Telescope North Upper Limits\n\nZ. Cano (Liverpool JMU), A. Melandri, C. Guidorzi (U. Ferrara), D. Bersier,\nI.A. Steele, R.J. Smith, C. Mundell (Liverpool JMU)\nreport, on behalf of a large collaboration:\n\nFollowing Swift detection of burst (Morris et al. GCN Circ. 9625), Faulkes\nTelescope North (Hawaii) reacted robotically and began observing the field\nof GRB 090709 in BVRi bands starting at 07:41:27 UT.\n\nWe detect no new source within the XRT error circle:\n\nt_exp     t-T0(mid exposure)   \tmag\n\n30s    \t\t207 s  \t\tR2 > 19.3\n180s  \t\t457 s  \t\tI  > 18.3\n\nThe upper limits are determined against stars in the USNO B1 catalog.",
  "circularId": 9630,
  "createdOn": 1247132132000,
  "email": "zec@astro.livjm.ac.uk",
  "subject": "GRB 090709: Faulkes Telescope North Upper Limits",
  "submitter": "Zach Cano at ARI/John Moores Liverpool  <zec@astro.livjm.ac.uk>",
  "eventId": "GRB 090709"
}