ashtech-gyro statistics (comment=rangeslice, u_dday)

ddrange: 130.9779168 to 131.9779059
(2011/05/11 23:28:12 to 2011/05/12 23:28:11)
all ashtech messages:  (90%)  were good

(300sec) ensemble heading corrections:
   287 out of 288   (100%) were good
statistics of good data:
   mean N = 270, stddev N =  28
   min  = -0.22, max = 1.25
   mean = 0.35, stddev = 0.23

