{
  "bibcode": "2005GCN..3451....1H",
  "body": "A. Henden (USRA/USNO) reports on behalf of the USNO GRB Team:\n\nWe have acquired BVRcIc all-sky photometry for an 11x11arcmin\nfield centered on the coordinates for the INTEGRAL burst\nXRF050522 (Gotz, et al. GCN 3446)\nwith the USNOFS 1.0-m telescope on one photometric night\nbut with bright moonlight.  Stars brighter than V=12.0\nare saturated and should be used with care.  We have placed\nthe photometric data on our anonymous ftp site:\nftp://ftp.nofs.navy.mil/pub/outgoing/aah/grb/xrf050522.dat\nThe astrometry in this file is based on linear plate solutions\nwith respect to UCAC2.  The external errors are less than 100mas.\nThe estimated external photometric error is about 0.02mag.\n\nThe first image was taken 16 minutes after the burst,\nand show no new sources in the INTEGRAL error box down\nto a plate limit of Rc=18.5.\n\nSince no afterglow has been reported, we do not anticipate\nany further observations at this time.  However,\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": 3451,
  "createdOn": 1116788883000,
  "email": "arne@aavso.org",
  "subject": "XRF050522, BVRcIc field photometry",
  "submitter": "Arne A. Henden at AAVSO  <arne@aavso.org>"
}