{
  "bibcode": "2010GCN.10433....1B",
  "body": "J. S. Bloom (UC Berkeley) and P.  E. Nugent (LBNL) report:\n\n\"We co-added 27 archival images from the DeepSky* project at Palomar Observatory covering the field of GRB 100219A (Rowlinson et al. 2010, GCN Circ. 10430). The images were obtained between 2004-2007 from the Palomar-Quest Consortium at the Oschin Schmidt telescope.  The limiting magnitude of the stack is approximately R ~ 22.5 mag.\n\nIn the combined image we detect a faint (R = 21.0 +/- 0.3 mag relative to nearby USNO catalog stars) slightly extended source, outside the current XRT error circle to the North by ~3.7\".  The approximate (+/- 1\") coordinates of the source are:\n\nRA = 10:16:48.52, DEC = -12:33:57.5  (J2000)\n\nWithin the errors, this is coincident with the UVOT source reported by Holland et al. (GCN 10432). This is a potential (lowish redshift) host candidate of the event and we encourage spectroscopic follow-up.\"\n\n* http://supernova.lbl.gov/~nugent/deepsky.html",
  "circularId": 10433,
  "createdOn": 1266602152000,
  "email": "jbloom@astron.berkeley.edu",
  "subject": "GRB 100219A: Pre-explosion imaging and host candidate",
  "submitter": "Josh Bloom at UC Berkeley  <jbloom@astron.berkeley.edu>",
  "eventId": "GRB 100219A"
}