ln_ell_orbit Struct Reference

Elliptic Orbital elements. More...

#include <ln_types.h>

Data Fields
double	a
double	e
double	i
double	w
double	omega
double	n
double	JD

Detailed Description

Elliptic Orbital elements.

TODO. Angles are expressed in degrees.

Examples

asteroid.c, and comet.c.

Field Documentation

a

double ln_ell_orbit::a

Semi major axis, in AU

Referenced by ln_get_ell_body_elong(), ln_get_ell_body_phase_angle(), ln_get_ell_comet_mag(), ln_get_ell_helio_rect_posn(), ln_get_ell_orbit_avel(), ln_get_ell_orbit_len(), ln_get_ell_orbit_pvel(), and ln_get_ell_orbit_vel().

e

double ln_ell_orbit::e

Eccentricity

Referenced by ln_get_ell_body_elong(), ln_get_ell_body_phase_angle(), ln_get_ell_comet_mag(), ln_get_ell_helio_rect_posn(), ln_get_ell_orbit_avel(), ln_get_ell_orbit_len(), and ln_get_ell_orbit_pvel().

i

double ln_ell_orbit::i

Inclination in degrees

Referenced by ln_get_ell_helio_rect_posn().

JD

double ln_ell_orbit::JD

Time of last passage in Perihelion, in julian day

Referenced by ln_get_ell_body_elong(), ln_get_ell_body_phase_angle(), ln_get_ell_comet_mag(), and ln_get_ell_helio_rect_posn().

n

double ln_ell_orbit::n

Mean motion, in degrees/day

Referenced by ln_get_ell_body_elong(), ln_get_ell_body_phase_angle(), ln_get_ell_comet_mag(), and ln_get_ell_helio_rect_posn().

omega

double ln_ell_orbit::omega

Longitude of ascending node in degrees

Referenced by ln_get_ell_helio_rect_posn().

w

double ln_ell_orbit::w

Argument of perihelion in degrees

Referenced by ln_get_ell_helio_rect_posn().