#date    time    tmajor tminor %change histmean   histsd    trmean   trstd  almean   alstd    F1    F2	timestamp
#F1 = (histmean-trigmean)/sqrt((histsd**2+trigsd**2)/2)
03/15/04 08:28:59 224     ?      16.1     35.8     0.7        30.0     4.0    ?       ?         2.01        0.00  1079368139