GCN Circular 3970
Subject
Swift is in normal operation
Date
2005-09-12T16:18:47Z (19 years ago)
From
Jay R. Cummings at NASA/GSFC/Swift <jayc@milkyway.gsfc.nasa.gov>
M. Chester (PSU), J. Kennea (PSU), J. Cummings (GSFC/NRC),
F. Marshall (GSFC), N. Gehrels (GSFC),
report on behalf of the Swift team:
As of about 20:03 UT Sept. 11, 2005, Swift returned to normal operations.
Swift had temporarily lost star tracker lock at 16:13 UT, and a series
of 12 false burst notices were distributed (GCN circ. 3963). The trigger
numbers of the false burst notices were between 154632 and 154648
inclusive. We apologize for the inconvenience. We do not anticipate any
heightened probability that this anomaly will reoccur in the future.
We repeat that trigger 154630 at 15:59:34 UT (GCN circ. 3961) was a real
burst, GRB 050911, and the BAT data for that burst was not affected by
the star tracker anomaly.