{
  "bibcode": "2009GCN..9960....1C",
  "body": "Z. Cano, A. Melandri, C. Mundell, D. Bersier, R.J. Smith, I. A. Steele, S.\nKobayashi, C.J. Mottram (Liverpool JMU), A. Gomboc (U. Ljubljana) report,\non behalf of the Liverpool GRB group:\n\nThe Faulkes Telescope South (Australia) observed the field of GRB\n090927 (Swift trigger=370846, Grupe et al., GCN 9945) on 2009 September 27\nand 28.\n\nThe afterglow candidate reported by Gronwell & Grupe (GCN 9946) is clearly\nvisible and fading at position:\n\nRA(J2000):   22 55 53.42\nDec(J2000): -70 58 49.54\n\nwith the following magnitudes calibrated wrt USNO-B1 objects in the field:\n\nI = 19.4 +/- 0.1  @ 3.66 hrs\nI = 21.3 +/- 0.2  @ 27.23 hrs\n\nR = 19.9 +/- 0.1 @ 4.21 hrs\n\nObservations are on-going, but we derive preliminary decay rates using the\nabove FTS measurements and the R-band magnitude reported by Levan et al.\n(GCN 9958) to be: alpha_I=0.9+/-0.2, alpha_R=1.2+/-0.2.",
  "circularId": 9960,
  "createdOn": 1254156152000,
  "email": "zec@astro.livjm.ac.uk",
  "subject": "GRB 090927: Faulkes Telescope South Detection of the Optical  Afterglow",
  "submitter": "Zach Cano at ARI/John Moores Liverpool  <zec@astro.livjm.ac.uk>",
  "eventId": "GRB 090927"
}