sc_ephemeris.h

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/*
 * sc_ephemeris.h 
 *
 * Programmers: Mike Paluszek, Stephanie Thomas, Wil Turner
 *
 * Copyright 1999-2006, Princeton Satellite Systems. All rights reserved.
 *
 * Ephemeris functions. Time and data conversions and planetary movement, position, and eclipse computations.
 * Coordinated Universal Time (UTC) is used for inputs in seconds with the UNIX epoch, 1970-01-01 00:00:00+00.
 */
 
#ifndef __SC_EPHEMERIS__
#define __SC_EPHEMERIS__
 
#ifdef AS_OS_WINDOWS
#include "matrixlib.h"
#else
#include <MatrixLib/MatrixLib.h>
#endif
#include "sc_constants.h"
 
extern "C++"
{
 
        double date_to_jd(const ml_matrix& dateTime );
double jd_to_utc_secs(double jd);
double utc_secs_to_jd(double secs);
double jd_to_jcent(double jd);
double jcent_to_jd(double jcent);
double jd_to_midnight(double jd);
double gms_time(double jd);
double ms_day(double jd);
double local_sidereal_time (double jd, double lon);
double mean_sidereal_day( double jd );
ml_matrix jd_to_date( double jd );
double jd_to_day_number( double jd );
    
ml_matrix stellar_reduction( const ml_matrix& rA0, const ml_matrix& dec0, const ml_matrix& pMRA, const ml_matrix& pMDec,  const ml_matrix&parallax, const ml_matrix& rV,  const ml_matrix& vSc, double jD );
void earth_barycenter( const ml_matrix& jD, ml_matrix eB, ml_matrix eB_dot );
void earth_barycenter( double jD, ml_matrix eB, ml_matrix eB_dot );
ml_matrix light_deflection( const ml_matrix& p, const ml_matrix& e );
ml_matrix stellar_aberration( const ml_matrix& u, const ml_matrix& v );
 
 
ml_matrix meci_to_planet(double alpha0,  double delta0,  double w);
ml_matrix meci_to_earth(double jD);
ml_matrix sun_vector(double jd, double &r);
ml_matrix sun_vector(double jd);
ml_matrix moon_vector(double jd, double &r);
ml_matrix true_earth(double jcent);
ml_matrix earth_pre(double jcent);
ml_matrix earth_rot(double jcent);
ml_matrix earth_rot_eq(double jcent);
ml_matrix earth_nut(double jcent);
double nut_delta(double j_cent, double &delta_eps);
double ob_of_ecliptic(double jcent);
ml_matrix c_ecl_to_eq( double jD );
double eq_of_equinoxes(double jcent);
double eclipse_spice( const ml_matrix &pos, const ml_matrix &planet_radius, const ml_matrix &planet_position, const ml_matrix &planet_index, int observer );
double eclipse(const ml_matrix &pos, const ml_matrix &l_pos, const ml_matrix &p_pos, double p_radius = RADIUS_EARTH, double l_radius = RADIUS_SUN);
double earth_rate( double jd );
ml_matrix  local_star_position( double jd, double lY );
ml_matrix  planet_ecliptic_to_orbit( int naif_code, double jd = JD_2000 );
ml_matrix  planet_ecliptic_to_orbit( char * planet_name, double jd = JD_2000 );
 
 
}
 
#endif