{
  "bibcode": "2007GCN..6095....1S",
  "body": "G. Stratta, M. Perri, M. L. Conciatore (ASDC), D. N. Burrows (PSU) and\nG. Sato (GSFC/ISAS) report on behalf of the Swift/XRT team:\n\nWe have analysed the first 12 orbits of Swift XRT data on the BAT GRB\n070209 (Sato et al., GCN Circ. 6086). Data in Photon Counting mode\nstarted at 03:35:10 UT, 89 s after the BAT trigger. With an exposure time\nof 26.9 ks we did not find X-ray sources within the BAT refined error\ncircle (Sakamoto et al., GCN Circ. 6087). We note that the following\nX-ray sources are detected in the 0.7-10 keV band in the proximity of the\nBAT error circle:\n\nSource #1: CR = (1.1+/-0.3)e-3 cts/s RA/Dec(J2000)=03 04 57.3 -47 19 35.6\nSource #2: CR = (7.5+/-2.2)e-4 cts/s RA/Dec(J2000)=03 05 04.9 -47 18 42.8\nSource #3: CR = (1.4+/-0.3)e-3 cts/s RA/Dec(J2000)=03 04 39.1 -47 27 57.3\n\nThe estimated uncertainty of the positions of the three sources is about\n5 arcsec (90% containment).\n\nSource #1 lies 3.1 arcmin from the refined BAT position, just outside the\nerror circle. We note that this source may be fading, but due to the small\nnumber of counts we are unable to determine clearly if the source is\ndecaying. A Swift follow-up observation will be performed in a few days to\nconfirm whether source #1 is fading or not.\n\nThis circular is an official product of the Swift XRT Team.",
  "circularId": 6095,
  "createdOn": 1171136984000,
  "email": "perri@asdc.asi.it",
  "subject": "GRB 070209: Swift XRT analysis",
  "submitter": "Matteo Perri at ISAC/ASDC  <perri@asdc.asi.it>",
  "eventId": "GRB 070209"
}