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//
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// cNoradSDP4.h
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//
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// This class implements the NORAD Simple Deep Perturbation 4 orbit
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// model. This model provides the ECI coordinates/velocity of satellites
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// with periods >= 225 minutes.
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//
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// Copyright (c) 2003 Michael F. Henry
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//
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#pragma once
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#include "cNoradBase.h"
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class cOrbit;
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//////////////////////////////////////////////////////////////////////////////
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class cNoradSDP4 : public cNoradBase
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{
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public:
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cNoradSDP4(const cOrbit &orbit);
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~cNoradSDP4(void);
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virtual bool getPosition(double tsince, cEci &eci);
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protected:
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bool DeepInit(double *eosq, double *sinio, double *cosio, double *m_betao,
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double *m_aodp, double *m_theta2, double *m_sing, double *m_cosg,
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double *m_betao2,double *xmdot, double *omgdot, double *xnodott);
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bool DeepSecular(double *xmdf, double *omgadf,double *xnode, double *emm,
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double *xincc, double *xnn, double *tsince);
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bool DeepCalcDotTerms (double *pxndot, double *pxnddt, double *pxldot);
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void DeepCalcIntegrator(double *pxndot, double *pxnddt, double *pxldot,
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const double &delt);
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bool DeepPeriodics(double *e, double *xincc, double *omgadf,
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double *xnode, double *xmam);
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double m_sing;
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double m_cosg;
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// Deep Initialization
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double eqsq; double siniq; double cosiq; double rteqsq; double ao;
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double cosq2; double sinomo; double cosomo; double bsq; double xlldot;
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double omgdt; double xnodot;
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// Deep Secular, Periodic
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double xll; double omgasm; double xnodes; double _em;
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double xinc; double xn; double t;
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// Variables shared by "Deep" routines
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double dp_e3; double dp_ee2; double dp_savtsn; double dp_se2;
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double dp_se3; double dp_sgh2; double dp_sgh3; double dp_sgh4;
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double dp_sghs; double dp_sh2; double dp_sh3; double dp_si2;
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double dp_si3; double dp_sl2; double dp_sl3; double dp_sl4;
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double dp_xgh2; double dp_xgh3; double dp_xgh4; double dp_xh2;
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double dp_xh3; double dp_xi2; double dp_xi3; double dp_xl2;
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double dp_xl3; double dp_xl4; double dp_xqncl; double dp_zmol;
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double dp_zmos;
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double dp_atime; double dp_d2201; double dp_d2211; double dp_d3210;
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double dp_d3222; double dp_d4410; double dp_d4422; double dp_d5220;
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double dp_d5232; double dp_d5421; double dp_d5433; double dp_del1;
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double dp_del2; double dp_del3; double dp_fasx2; double dp_fasx4;
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double dp_fasx6; double dp_omegaq; double dp_sse; double dp_ssg;
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double dp_ssh; double dp_ssi; double dp_ssl; double dp_step2;
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double dp_stepn; double dp_stepp; double dp_thgr; double dp_xfact;
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double dp_xlamo; double dp_xli; double dp_xni;
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bool dp_iresfl;
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bool dp_isynfl;
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// DeepInit vars that change with epoch
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double dpi_c; double dpi_ctem; double dpi_day; double dpi_gam;
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double dpi_stem; double dpi_xnodce; double dpi_zcosgl; double dpi_zcoshl;
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double dpi_zcosil; double dpi_zsingl; double dpi_zsinhl; double dpi_zsinil;
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double dpi_zx; double dpi_zy;
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};
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