{
  "bibcode": "2006GCN..5844....1C",
  "body": "S. B. Cenko (Caltech) reports on behalf of a larger collaboration:\n\nWe have imaged the field of GRB 061121 (Page et al., GCN 5823) with the\nautomated Palomar 60-inch telescope.  Observations consisted of 25 x 180 s\nexposures in the Kron R and Sloan i' filters, taken at a mean epoch of\napproximately 11:30 22 November UT (~ 20.1 hr after the burst).\n\nThe afterglow is clearly detected in our images, and we measure the\nfollowing magnitudes (calculated with reference to the USNO-B catalog):\n\n\tR = 21.0 +/- 0.25\n        I = 20.3 +/- 0.21\n\nThe large errors are dominated by photometric uncertainty.  We note the\nR-band measurements are consistent with nearly-simultaneous observations\nreported by Halpern et al. (GCN 5840).\n\nFurther observations are planned.",
  "circularId": 5844,
  "createdOn": 1164241956000,
  "email": "cenko@srl.caltech.edu",
  "subject": "GRB061121: P60 Observations",
  "submitter": "S. Bradley Cenko at Caltech  <cenko@srl.caltech.edu>",
  "eventId": "GRB 061121"
}