GCN Circular 3241
Subject
GRB 050412: Swift XRT Position
Date
2005-04-12T11:38:26Z (20 years ago)
From
Jamie A. Kennea at PSU/Swift-XRT <kennea@astro.psu.edu>
F. Tamburelli, P. Giommi, M. Capalbi, M. Perri (ASDC), J. Kennea, D. N.
Burrows, J. A. Nousek, M. Chester (PSU), V. Mangano, T. Mineo (IASF/Palermo),
A. F. Abbey, P. T. O'Brien (U. Leicester), A. Moretti, G. Tagliaferri (OAB), L.
Angelini, F. Marshall, and N. Gehrels (NASA/GSFC) report on behalf of the
Swift XRT team:
The Swift BAT instrument detected a GRB at 05:44:03 UT on 12th April 2005
(GCN Circ 3237). The observatory executed an automated slew to the BAT
position and the XRT began taking data at 05:45:42 UT. The XRT was in
Auto state but was not able to centroid on the afterglow due to low source
brightness. From downlinked data we find a uncataloged X-ray source
located at:
RA(J2000) = 12:04:25.3,
Dec(J2000) = -1:12:02.2.
We estimate an uncertainty of about 5 arcseconds radius (90% containment).
This position is 191 arcseconds from the BAT position reported in GCN
3237.
[GCN_OPS_NOTE (12apr05): Per author's request, the "050406" in the Subject line
was changed to "050412".]