GCN Circular 21963
Subject
Swift Trigger 775946 is a Galactic transient, not GRB 171003
Event
Date
2017-10-03T11:44:51Z (8 years ago)
From
Jamie A. Kennea at PSU/Swift-XRT <kennea@swift.psu.edu>
J.A. Kennea (PSU) and S.B. Cenko (NASA/GSFC) report on behalf of the
Swift Team:
BAT trigger 775946 (GCN #21960) is confirmed to be a Galactic Transient,
Swift J0243.6+6124. Swift/XRT observations show the source to continue
to be bright with evidence of brightening over three orbits of
observations. We note also a reported possible detection of brightening
of LSI +61 303 by MAXI (ATEL #10803) is likely due to this new transient
(LSI +61 303 is 25 arc-minutes away from the XRT position reported in
GCN #21960).