{
  "bibcode": "2006GCN..4823....1C",
  "body": "M. Capalbi, M. Perri, L. Vetere (ASDC), K.L. Page (U. Leicester), J. \nKennea and D. Burrows (PSU) report on behalf of the Swift XRT team:\n\nWe have analysed the Swift XRT data from the first  seven orbits \nobservation of GRB 060223 (Cummings et al. GCN 4813). We find an \nuncatalogued fading source at the following location:\n\nRA(J2000) = 03h  40m  49.74s\nDec(J2000) = -17d  07'  48.0\"\n\nWe estimate an uncertainty of 3.7 arcseconds  radius (90% containment). \nThis position is 44 arcsec from the BAT position and 2.6 arcsec from the \nUVOT position given in GCN 4813.\n\nThe large flare in the first orbit makes determination of an afterglow \nslope and extrapolation of the flux unreliable, and we will have to wait \nfor further data before an afterglow slope can be established.\n\nA preliminary spectral fit to the Photon Counting mode data with an \nabsorbed power law gives  a photon index of 1.9 � 0.3 and NH  consistent \nwith the Galactic value  (5.92E+20 cm^-2).\n\nThis circular is an official product of the Swift XRT Team.",
  "circularId": 4823,
  "createdOn": 1140729926000,
  "email": "capalbi@asdc.asi.it",
  "subject": "GRB 060223: Swift XRT Team preliminary analysis",
  "submitter": "Milvia Capalbi at ISAC/ASDC  <capalbi@asdc.asi.it>",
  "eventId": "GRB 060223"
}