typedef struct {
int chunk;
double stripe;
char NSB;
int startMu;
int primTargetMask;
int secTargetMask;
int skyVersion;
char targetVersion[32];
int coordType;
double firstArea;
double surveyCenterRa;
double surveyCenterDec;
double northPoleEta;
double anode;
double ainc;
double ra[4];
double dec[4];
double eta[4];
double lambda[4];
double mu[4];
double nu[4];
} TIBOUNDARY;