{
  "bibcode": "2004GCN..2871....1H",
  "body": "A. Henden (USRA/USNO) reports on behalf of the USNO GRB team:\n\nWe have acquired BVRcIc all-sky photometry for\na 11x11 arcmin field centered on the coordinates for the\nINTEGRAL burst GRB041219 (Gotz et al., GCN 2866)\nwith the USNOFS 1.0-m telescope on one marginally photometric\nnight.  Stars brighter than V=13.0 are saturated and\nshould be used with care.  We have placed the photometric data\non our anonymous ftp site:\nftp://ftp.nofs.navy.mil/pub/outgoing/aah/grb/grb041219.dat\nThe astrometry in this file is based on linear plate solutions\nwith respect to USNOA2.  The external errors are less than 300mas.\nThe estimated external photometric error is about 0.04mag\ndue to the poor seeing.\n\nAs always, you should check the dates on the .dat file prior to\nfinal publication to get the latest photometry.  There is\na README file on the ftp directory to give you information\nabout the procedures used to calibrate these fields.",
  "circularId": 2871,
  "createdOn": 1103432373000,
  "email": "aah@nofs.navy.mil",
  "subject": "GRB041219, BVRcIc field calibration",
  "submitter": "Arne A. Henden at USNO/USRA  <aah@nofs.navy.mil>",
  "eventId": "GRB 041219"
}