typedef struct {
mrcRefDegCoordinate ip;
mrcRefDegCoordinate iw;
mrcRefDegCoordinate ia;
mrcRefDegCoordinate dp;
mrcRefDegCoordinate dw;
mrcRefDegCoordinate da;
mrcRefDegCoordinate wp;
mrcRefDegCoordinate ww;
mrcRefDegCoordinate wa;
int mode;
} mrcRefCorHeader;