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frame.h
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frame.h
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/**
*@file frame.h
*@brief Contains the various constant/macro/struct definitions and functions for frame transformations
*/
#ifndef FRAME_H
#define FRAME_H
#include "mathutil.h"
#define STPERUT 1.00273790935
#define W_EARTH_ROT 7.294070543852040e-5
#define A 6378137.0
#define B 6356752.314245
#define F 0.003352811
#define E2 0.006694381
#define EP2 0.006739498
uint64_t days_in_months(uint8_t month);
uint64_t get_seconds_since_pivot(uint16_t year, uint8_t month, uint8_t date, uint8_t hours, uint8_t minutes, uint8_t seconds);
void get_seconds_since_equinox(void);
void eci2ecef(vector v_eci, vector v_ecef);
void ecef2eci(vector v_ecef, vector v_eci);
void eci2orbit(vector v_r, vector v_v, vector v_eci, vector v_orbit);
void ecef2lla(vector v_ecef, vector v_lla);
void ned2ecef(vector v_ned, vector v_lla, vector v_ecef);
extern uint64_t seconds_since_equinox, seconds_since_pivot;
#endif