{
  "bibcode": "2008GCN..8064....1G",
  "body": "C. Guidorzi (INAF-OAB) and I. Steele (LJMU) on behalf of a\nlarger collaboration report:\n\nOn 2008 August 05 (12:44:12 UT) we began observing the field of GRB 080804\n(Racusin et al. GCN Circ. 8057) with the Faulkes Telescope South using\nthe R filter.\n\nIn our coadded frame we detect the optical afterglow at the position\nfully consistent with that reported by Swift-UVOT (Racusin et al. GCN\nCirc. 8057) and slighly outside the error circle given by ROTSE-III\n(Rujopakarn et al. GCN Circ. 8056) which is 1.5 arcsec away.\n\nTelescope   Filter  T_mid[hr]   Exposure[s]      Mag\n-----------------------------------------------------------\nFTS         R        14.235       1200         21.6 +/- 0.1\n-----------------------------------------------------------\n\nThe calibration was performed using the R2 magnitudes of several\nUSNOB-1 catalogue field objects. The uncertainty reported above does\nnot include the additional ~0.3 mag of the USNOB-1 catalogue.\nFrom the comparison with the value reported by UVOT we infer an\naverage power-law decay index of ~0.7.",
  "circularId": 8064,
  "createdOn": 1217948759000,
  "email": "cristiano.guidorzi@brera.inaf.it",
  "subject": "GRB 080804: Faulkes Telescope South observations",
  "submitter": "Cristiano Guidorzi at INAF-OAB  <cristiano.guidorzi@brera.inaf.it>",
  "eventId": "GRB 080804"
}