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GCN Circular 3147

Subject
GRB 050326: Swift XRT Position
Date
2005-03-26T18:42:58Z (19 years ago)
From
David Burrows at PSU/Swift <dxb15@psu.edu>
A. Moretti, S. Campana, P. Romano, G. Chincarini (INAF-OAB), J. L. Racusin, 
D. N. Burrows (PSU), J. P. Osborne, A. P. Beardmore  (U. Leicester), G. 
Cusumano, T. Mineo (INAF-IASF/Palermo), M. Perri, F. Tamburelli (ASDC), S. 
Hunsberger, S. Kobayashi, P. Meszaros (PSU), D. Malesani (INAF-OAB), and N. 
Gehrels (GSFC), report on behalf of the Swift XRT team:

The Swift XRT observed the field of GRB 050326 beginning at 10:48:14 
UT.  The instrument was in Auto State and attempted to calculate a 
centroid, but found only 7 photons in 2.5 seconds from the GRB position, 
insufficient to obtain an on-board centroid.  Based on 335 seconds of 
Photon-Counting mode observations from the first orbit of data, we find a 
bright uncataloged X-ray source located at:

RA(J2000) = 0:27:48.7,
Dec(J2000) = -71:22:17.2

We estimate an uncertainty of about 6 arcseconds.   This source is located 
83 arcseconds from the BAT position given in GCN 3145.
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