{
  "bibcode": "2009GCN..9176....1G",
  "body": "C. Guidorzi (U. Ferrara), R.J. Smith, I.A. Steele, C.G. Mundell,\nD. Bersier (Liverpool JMU), A. Gomboc (U. Ljubljana), P. O'Brien,\nN. Tanvir (U. Leicester) on behalf of a large collaboration report:\n\nOn 2009 April 19 at 12:53:50 UT we observed the Swift-BAT Slew Survey\nGRB 090418B (Copete et al., GCN Circ. 9159) with the 2-m Faulkes \nTelescope North using the i' and R filters.\n\n From a set of 6x300 s frames in each filter, we could not find any\nuncatalogued object inside the BAT error circle with respect to the SDSS\nfield stars, down to the following limiting magnitudes:\n\nMid Time   Exposure  Filter   Limit\n(days)      (s)               (mag)\n-------------------------------------\n1.17        6x300      i'      > 21\n1.20        6x300      R       > 21.5\n-------------------------------------",
  "circularId": 9176,
  "createdOn": 1240259359000,
  "email": "guidorzi@fe.infn.it",
  "subject": "GRB 090418B: Faulkes Telescope North observations",
  "submitter": "Cristiano Guidorzi at Ferrara U,Italy  <guidorzi@fe.infn.it>",
  "eventId": "GRB 090418B"
}