FDC   2   6830    0 4334 74  63842199  0 22EVENT  0DB   0DB   X20  .5HZ
 FFC [ FIX   XOFF  YOFF  ZOFF  CALOFF 1978  16103492    .68309897+05    
 BFC         4 8   2 8   811   6 2   5 4   7 5