#date    time    tmajor tminor %change histmean   histsd    trmean   trstd  almean   alstd    F1    F2	timestamp tdiff
#F1 = (histmean-trigmean)/sqrt((histsd**2+trigsd**2)/2)
07/01/2004 12:27:58 224     ?      41.3    995.6     6.7       584.8   253.9    ?       ?         2.29        0.00  1088710078 1475