GCN Circular 3040
Subject
GRB 050219a: Refined XRT position
Date
2005-02-19T23:29:58Z (19 years ago)
From
David Burrows at PSU/Swift <dxb15@psu.edu>
K. L. Page, M. R. Goad, O. Godet, J. P. Osborne, (U. Leicester), M. Perri
(ASDC), J. L. Racusin, D. N. Burrows, (PSU), C. Pagani, G. Tagliaferri
(INAF-OAB), V. Mangano (INAF-IASF/Palermo), K. Hurley (UC-Berkeley), N.
White, N. Gehrels (GSFC), B. Zhang (U. Nevada), report on behalf of the
Swift XRT team:
We report a refined XRT position for GRB 050219a (Romano et al. 2005, GCN
3036; Hullinger et al. 2005, GCN 3038), based on ground-processing of XRT
Photon-Counting mode data taken during the first orbit after the
burst. The refined position is:
RA(J2000) = 11:05:38.8,
Dec(J2000) = -40:40:58.3.
We estimate an uncertainty of about 6.3 arcseconds.
The lightcurve of this burst is fading, with a steep power-law up to about
200 s post-burst and a shallower power law at later times.
Swift observations of this burst ended at 21:05:36.00 UT, when the Swift
BAT triggered on GRB 050219b, which replaced GRB 050219a as the new GRB
target in the on-board schedule.