void   radhms(double rad, int *hour, int *mins, double *secs);
char *sradhms(double rad, int precision, char *string);
void   raddms(double rad, int *sgn, int *deg,  int *mins, double *secs);
char *sraddms(double rad, int precision, char *string);
void   daydate(int year, int dayno, int *day, int *month);
char *sdaydate(int year, int dayno, char *string);
char *sutdate(int year, double vlbut, char *string);
void   dayut(double vlbut, int *dayno, int *hour, int *mins, double *secs);
int write_ut(double vlbut, int nc, char *string);
double read_ut(char *s, char **endp);
void julday(double vlbut, int year, long *jd, double *jdfrc, double *je);
char *date_str(void);
char *polname(int polcode);
void subamphs(float *amp, float *phs, float subamp, float subphs);
void addamphs(float *amp, float *phs, float addamp, float addphs);
int termstr(char *instr, int slen);
char *termcpy(char *ostr, const char *istr, int ncmax);
void fillstr(char *instr, int slen);
char *stripcpy(char *ostr, int nco, const char *istr, int nci);
char *stripstr(char *istr, int nci);
void imran(float *map, int xdim, int ydim, int xa, int xb, int ya, int yb,
	    float *mapmin, float *mapmax);
int plbeam(float bmin, float bmaj, float bpa, float xpos, float ypos,
	   float xmin, float xmax, float ymin, float ymax);