typedef struct {
	 int run;
	 int frame;
	 int mirror; 	 # which mirror
	 int piston; 	 # microns
	 int x_tilt; 	 # arcsec
	 int y_tilt; 	 # arcsec
	 int x_trans; 	 # microns
	 int y_trans;  	 # microns
} MIRROR;

typedef struct {
	 int run;
	 int frame;
	 int g1;
	 int g2;
	 int g3;
	 int g4;
	 int g5;
} S_GALIL;

typedef struct {
	 int run;
	 int frame;
	 int g1;
	 int g2;
	 int g3;
	 int g4;
	 int g5;
	 int g6;
} P_GALIL;

typedef struct {int run; int frame;  char comment[60];} FCOMMENT