ff1a1   18:35:03  E 2' 9"  N 3'24"    -4
f1a1    18:36:50  E 2' 9"  N 3'24"    -3
f1a2    18:41:38  E 2' 9"  N 3'24"    -4
        18:41:38  E 2' 9"  N 3'24"    -4