ff1a1   10:30:49  W 4'22"  S 0'59"  1742
f1a1    10:32:36  W 4'22"  S 0'59"  1749
f1a2    10:35:36  W 4'22"  S 0'59"  1745
        10:35:36  W 4'22"  S 0'59"  1745