GCN Circular 5712
L. Vetere, C. Pagani, D. N. Burrows (PSU) and P. Schady (MSSL-UCL) report on behalf of the Swift XRT team: We have analysed the first 3 orbits of XRT data from GRB 061007. This is one of the brightest GRB afterglow ever observed by XRT. A 5.2ks photon counting mode image provides a refined XRT position: RA(J2000) = 03 05 19.1 Dec(J2000) = -50 30 01.5 with an uncertainty of 5 arcsec (90% containment). This position is 3.8 arcsec away from the on-board XRT position and 4 arcsec away from UVOT position (Schady et al. GCN 5707). The X-ray light curve shows a rapid decay with a slope of -1.6 +/-0.1. A power-law fit to the WT spectrum gives a photon index of 2.36 +/- 0.2 and a column density of (2.2 +/- 0.2)e21 cm**-2. We note the galactic hydrogen column density in the direction of the burst is 2.13e20cm**-2. The 0.2-10.0 keV observed mean flux during WT observation is 1.46e-07 ergs cm**-2 s**-1, which corresponds to an unabsorbed flux of 2.98e-07 ergs cm**-2 s**-1. If the burst continues decaying at the current rate we estimate an XRT count rate of 0.0069 counts/s at T + 24hr, which corresponds to an observed 0.2-10.keV flux of 5.7e-11 ergs cm**-2 s**-1. This circular is an official product of the Swift XRT Team.