S. D. Barthelmy (GSFC), A. P. Beardmore (U Leicester),
D. N. Burrows (PSU), J. R. Cummings (NASA/UMBC),
N. Gehrels (NASA/GSFC), C. Guidorzi (INAF-OAB),
S. T. Holland (CRESST/USRA/GSFC), J. A. Kennea (PSU),
J. Mao (INAF-OAB), F. E. Marshall (NASA/GSFC), C. Pagani (PSU),
D. M. Palmer (LANL), M. Perri (ASDC), T. Sakamoto (NASA/UMBC),
T. N. Ukwatta (GSFC/GWU) and L. Vetere (PSU) report on behalf of the
At 13:12:52 UT, the Swift Burst Alert Telescope (BAT) triggered and
located a second outburst from a new SGR source 0501+4516 (trigger=321177)
which was previously reported as GRB 080822 (Holland et al, GCN Circ 8112).
Swift was already looking at this location from the trigger on this source
of ~30 min earlier. The BAT on-board calculated location is
RA, Dec 75.265, +45.272, which is
RA(J2000) = 05h 01m 04s
Dec(J2000) = +45d 16' 20"
with an uncertainty of 3 arcmin (radius, 90% containment, including
systematic uncertainty). The BAT light curve shows a single spike
with a duration of less than 128 msec. The peak count rate
was ~17000 counts/sec (15-350 keV), at ~0 sec after the trigger.