#date    time    tmajor tminor %change histmean   histsd    trmean   trstd  almean   alstd    F1    F2	timestamp tdiff
#F1 = (histmean-trigmean)/sqrt((histsd**2+trigsd**2)/2)
09/14/2004 01:55:32 224     ?       3.9   1000.0     0.0       961.0    70.8    ?       ?         0.78        0.00  1095152132 288