float wsr88d_get_prt(Wsr88d_ray *ray);
float wsr88d_get_wavelength(Wsr88d_ray *ray);
float wsr88d_get_frequency(Wsr88d_ray *ray);
float wsr88d_get_prt(Wsr88d_ray *ray);
float wsr88d_get_wavelength(Wsr88d_ray *ray);
float wsr88d_get_frequency(Wsr88d_ray *ray);