FDC   2   1580    0 7496270  63594095  0 22EVENT  0DB   0DB   X20  .5HZ
 FFC [ FIX   XOFF  YOFF  ZOFF  CALOFF 1976  12298554    .50137661+05    
 BFC         2 2   1 2   2 4   4 1   2 1   0 0