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elliptic_motion.h
1 /*
2 * This library is free software; you can redistribute it and/or
3 * modify it under the terms of the GNU Lesser General Public
4 * License as published by the Free Software Foundation; either
5 * version 2 of the License, or (at your option) any later version.
6 *
7 * This library is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
10 * Lesser General Public License for more details.
11 *
12 * You should have received a copy of the GNU General Public License
13 * along with this program; if not, write to the Free Software
14 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
15 *
16 * Copyright (C) 2000 - 2005 Liam Girdwood
17 */
18
19 #ifndef _LN_ELLIPTIC_MOTION_H
20 #define _LN_ELLIPTIC_MOTION_H
21
22 #include <libnova/ln_types.h>
23
24 #ifdef __cplusplus
25 extern "C" {
26 #endif
27
39 double LIBNOVA_EXPORT ln_solve_kepler (double e, double M);
40
45 double LIBNOVA_EXPORT ln_get_ell_mean_anomaly (double n, double delta_JD);
46
51 double LIBNOVA_EXPORT ln_get_ell_true_anomaly (double e, double E);
52
57 double LIBNOVA_EXPORT ln_get_ell_radius_vector (double a, double e, double E);
58
63 double LIBNOVA_EXPORT ln_get_ell_smajor_diam (double e, double q);
64
69 double LIBNOVA_EXPORT ln_get_ell_sminor_diam (double e, double a);
70
75 double LIBNOVA_EXPORT ln_get_ell_mean_motion (double a);
76
81 void LIBNOVA_EXPORT ln_get_ell_geo_rect_posn (struct ln_ell_orbit* orbit, double JD, struct ln_rect_posn* posn);
82
87 void LIBNOVA_EXPORT ln_get_ell_helio_rect_posn (struct ln_ell_orbit* orbit, double JD, struct ln_rect_posn* posn);
88
93 double LIBNOVA_EXPORT ln_get_ell_orbit_len (struct ln_ell_orbit * orbit);
94
99 double LIBNOVA_EXPORT ln_get_ell_orbit_vel (double JD, struct ln_ell_orbit * orbit);
100
105 double LIBNOVA_EXPORT ln_get_ell_orbit_pvel (struct ln_ell_orbit * orbit);
106
111 double LIBNOVA_EXPORT ln_get_ell_orbit_avel (struct ln_ell_orbit * orbit);
112
117 double LIBNOVA_EXPORT ln_get_ell_body_phase_angle (double JD, struct ln_ell_orbit * orbit);
118
123 double LIBNOVA_EXPORT ln_get_ell_body_elong (double JD, struct ln_ell_orbit * orbit);
124
130 double LIBNOVA_EXPORT ln_get_ell_body_solar_dist (double JD, struct ln_ell_orbit * orbit);
131
137 double LIBNOVA_EXPORT ln_get_ell_body_earth_dist (double JD, struct ln_ell_orbit * orbit);
138
144 void LIBNOVA_EXPORT ln_get_ell_body_equ_coords (double JD, struct ln_ell_orbit * orbit, struct ln_equ_posn * posn);
145
150 int LIBNOVA_EXPORT ln_get_ell_body_rst (double JD, struct ln_lnlat_posn * observer, struct ln_ell_orbit * orbit, struct ln_rst_time * rst);
151
156 int LIBNOVA_EXPORT ln_get_ell_body_rst_horizon (double JD, struct ln_lnlat_posn * observer, struct ln_ell_orbit * orbit, double horizon, struct ln_rst_time * rst);
157
162 int LIBNOVA_EXPORT ln_get_ell_body_next_rst (double JD, struct ln_lnlat_posn * observer, struct ln_ell_orbit * orbit, struct ln_rst_time * rst);
163
168 int LIBNOVA_EXPORT ln_get_ell_body_next_rst_horizon (double JD, struct ln_lnlat_posn * observer, struct ln_ell_orbit * orbit, double horizon, struct ln_rst_time * rst);
169
174 int LIBNOVA_EXPORT ln_get_ell_body_next_rst_horizon_future (double JD, struct ln_lnlat_posn * observer, struct ln_ell_orbit * orbit, double horizon, int day_limit, struct ln_rst_time * rst);
175
180 double LIBNOVA_EXPORT ln_get_ell_last_perihelion (double epoch_JD, double M, double n);
181
182 #ifdef __cplusplus
183 };
184 #endif
185
186 #endif
ln_get_ell_body_rst_horizon
int ln_get_ell_body_rst_horizon(double JD, struct ln_lnlat_posn *observer, struct ln_ell_orbit *orbit, double horizon, struct ln_rst_time *rst)
Calculate the time of rise, set and transit for a body with an elliptic orbit.
Definition: elliptic_motion.c:517
ln_get_ell_radius_vector
double ln_get_ell_radius_vector(double a, double e, double E)
Calculate the radius vector.
Definition: elliptic_motion.c:129
ln_ell_orbit
Elliptic Orbital elements.
Definition: ln_types.h:265
ln_rect_posn
Rectangular coordinates.
Definition: ln_types.h:237
ln_get_ell_geo_rect_posn
void ln_get_ell_geo_rect_posn(struct ln_ell_orbit *orbit, double JD, struct ln_rect_posn *posn)
Calculate the objects rectangular geocentric position.
Definition: elliptic_motion.c:243
ln_get_ell_body_solar_dist
double ln_get_ell_body_solar_dist(double JD, struct ln_ell_orbit *orbit)
Calculate the distance between a body and the Sun.
Definition: elliptic_motion.c:378
ln_get_ell_mean_motion
double ln_get_ell_mean_motion(double a)
Calculate the mean daily motion (degrees/day).
Definition: elliptic_motion.c:165
ln_get_ell_body_elong
double ln_get_ell_body_elong(double JD, struct ln_ell_orbit *orbit)
Calculate the bodies elongation to the Sun..
Definition: elliptic_motion.c:456
ln_get_ell_orbit_vel
double ln_get_ell_orbit_vel(double JD, struct ln_ell_orbit *orbit)
Calculate orbital velocity in km/s.
Definition: elliptic_motion.c:329
ln_get_ell_last_perihelion
double ln_get_ell_last_perihelion(double epoch_JD, double M, double n)
Calculate the julian day of the last perihelion.
Definition: elliptic_motion.c:592
ln_get_ell_body_next_rst_horizon
int ln_get_ell_body_next_rst_horizon(double JD, struct ln_lnlat_posn *observer, struct ln_ell_orbit *orbit, double horizon, struct ln_rst_time *rst)
Calculate the time of rise, set and transit for a body with an elliptic orbit.
Definition: elliptic_motion.c:558
ln_get_ell_mean_anomaly
double ln_get_ell_mean_anomaly(double n, double delta_JD)
Calculate the mean anomaly.
Definition: elliptic_motion.c:96
ln_equ_posn
Equatorial Coordinates.
Definition: ln_types.h:170
ln_get_ell_true_anomaly
double ln_get_ell_true_anomaly(double e, double E)
Calculate the true anomaly.
Definition: elliptic_motion.c:109
ln_get_ell_helio_rect_posn
void ln_get_ell_helio_rect_posn(struct ln_ell_orbit *orbit, double JD, struct ln_rect_posn *posn)
Calculate the objects rectangular heliocentric position.
Definition: elliptic_motion.c:179
ln_lnlat_posn
Ecliptical (or celestial) Longitude and Latitude.
Definition: ln_types.h:200
ln_get_ell_smajor_diam
double ln_get_ell_smajor_diam(double e, double q)
Calculate the semi major diameter.
Definition: elliptic_motion.c:142
ln_get_ell_body_equ_coords
void ln_get_ell_body_equ_coords(double JD, struct ln_ell_orbit *orbit, struct ln_equ_posn *posn)
Calculate a bodies equatorial coords.
Definition: elliptic_motion.c:269
ln_rst_time
Rise, Set and Transit times.
Definition: ln_types.h:317
ln_get_ell_body_rst
int ln_get_ell_body_rst(double JD, struct ln_lnlat_posn *observer, struct ln_ell_orbit *orbit, struct ln_rst_time *rst)
Calculate the time of rise, set and transit for a body with an elliptic orbit.
Definition: elliptic_motion.c:498
ln_get_ell_orbit_pvel
double ln_get_ell_orbit_pvel(struct ln_ell_orbit *orbit)
Calculate orbital velocity at perihelion in km/s.
Definition: elliptic_motion.c:346
ln_get_ell_body_next_rst
int ln_get_ell_body_next_rst(double JD, struct ln_lnlat_posn *observer, struct ln_ell_orbit *orbit, struct ln_rst_time *rst)
Calculate the time of rise, set and transit for a body with an elliptic orbit.
Definition: elliptic_motion.c:537
ln_get_ell_orbit_avel
double ln_get_ell_orbit_avel(struct ln_ell_orbit *orbit)
Calculate the orbital velocity at aphelion in km/s.
Definition: elliptic_motion.c:361
ln_solve_kepler
double ln_solve_kepler(double e, double M)
Calculate the eccentric anomaly.
Definition: elliptic_motion.c:53
ln_get_ell_body_next_rst_horizon_future
int ln_get_ell_body_next_rst_horizon_future(double JD, struct ln_lnlat_posn *observer, struct ln_ell_orbit *orbit, double horizon, int day_limit, struct ln_rst_time *rst)
Calculate the time of rise, set and transit for a body with an elliptic orbit.
Definition: elliptic_motion.c:580
ln_get_ell_body_phase_angle
double ln_get_ell_body_phase_angle(double JD, struct ln_ell_orbit *orbit)
Calculate the phase angle of the body. The angle Sun - body - Earth.
Definition: elliptic_motion.c:423
ln_get_ell_body_earth_dist
double ln_get_ell_body_earth_dist(double JD, struct ln_ell_orbit *orbit)
Calculate the distance between a body and the Earth.
Definition: elliptic_motion.c:401
ln_get_ell_sminor_diam
double ln_get_ell_sminor_diam(double e, double a)
Calculate the semi minor diameter.
Definition: elliptic_motion.c:154
ln_get_ell_orbit_len
double ln_get_ell_orbit_len(struct ln_ell_orbit *orbit)
Calculate the orbital length in AU.
Definition: elliptic_motion.c:308