GCN Circular 9868
Subject
GRB 090902B: Swift/XRT Afterglow Candidate
Date
2009-09-03T03:00:57Z (15 years ago)
From
Jamie A. Kennea at PSU/Swift-XRT <kennea@astro.psu.edu>
J. A. Kennea (PSU) and G. Stratta (ASDC) report on behalf of the Swift/XRT
team:
At 23:36 UT, September 2nd, 2009, Swift began a Target of Opportunity
observation of the Fermi GBM/LAT discovered burst GRB 090902B (de Palma et
al., GCN #9867, Bissaldi et al., GCN #9866), approximately 12.5 hours
after the Fermi detection. In early data we detect an uncatalogued point
source at the following location, RA, Dec = 264.93984, 27.32405, which is
equivalent to:
RA (J2000) = 17h 39m 45.6s
Dec (J2000) = +27d 19' 26.6''
with an estimated uncertainty of 4.2 arcseconds radius (90% confidence).
This position is 3.2 arcmin from the reported LAT position, inside the LAT
error radius.
At this time we cannot confirm if the point source is fading. Observations
of this field are on-going.