double firsttime, lasttime;
int countinuous;
t_calcephbin *peph;
/* open the ephemeris file */
peph = calceph_open("example1.dat");
if (peph)
{
if (calceph_gettimespan(peph, &firsttime, &lasttime, &countinuous))
printf("%23.16E %23.16E %d\n", firsttime, lasttime, countinuous);
/* close the ephemeris file */
calceph_close(peph);
}