{
  "bibcode": "2005GCN..3528....1P",
  "body": "C.Pagani, D. Grupe, D. Burrows, J. Kennea, J. Racusin (PSU), and N Gehrels\n(GSFC), on behalf of the Swift XRT team report:\n\nWe analyzed the XRT data of the first two orbits of GRB 050607\n(Retter et al., GCN #3525). The observations started at 09:13:02 UT\n(100 s after the BAT burst trigger).  Preliminary analysis of the data\nobtained in the first 4.2ks of observations gives the following refined\ncoordinates for the X-ray afterglow:\n\nRa-2000:   20h 00m 42.6s\nDec-2000:  09d 08' 26.9\"\n\nThe centroiding error is 6\" radius (90%containment).\nThis position is about 5\" from the optical afterglow position reported by\nRhoads (GCN #3527) and 3\" from the previously reported XRT position (Retter\net al., GCN #3525).\n\nThe X-ray spectrum can be fitted with a single powerlaw with an X-ray\nphoton index=1.86+/-0.44. The fit is consistent with Galactic absorption\n(NH=1.41e21 cm-2).\n\nThe lightcurve has a peak around 310sec after the burst trigger.\n\nThe source had a unabsorbed flux of 1.6e-12 ergs/s/cm2 at approximately one\nhour after the burst and is decaying with a decay slope alpha=0.58+/-0.12.\n\nThis message may be cited.",
  "circularId": 3528,
  "createdOn": 1118163375000,
  "email": "pagani@astro.psu.edu",
  "subject": "GRB 050607 - XRT refined data analysis",
  "submitter": "Claudio Pagani at PSU/Swift-XRT  <pagani@astro.psu.edu>",
  "eventId": "GRB 050607"
}