FDC   2   3390    0 4112319  77552563  0 21NORMAL 0DB   0DB   X20  4.HZ
 FFC [ FIX   XOFF  YOFF  ZOFF  CALOFF 1977   1565730    .57346460+05    
 BFC       255 0   3 0   4 0   3 0   3 0   3 0