earth.h

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#pragma once
/*
Earth orientation predictions
*/
#include <boost/tr1/array.hpp> // so array works with old and new compilers
#include "coordConv/site.h"

namespace tcc {

    class Earth {
    public:
        int utcDay;                 // UTC day of the beginning of the data (MJD, days)
        std::tr1::array<double, 3> startTAI;        // TAI date of start of UTC_day and the next two UTC days (MJD, sec)
        std::tr1::array<double, 2> ut1_taiIntercept;    // UT1-TAI intercept at TAI[i] (sec)
        std::tr1::array<double, 2> poleInterceptX;  // pole x offset intercept at TAI[i] (deg)
        std::tr1::array<double, 2> poleInterceptY;  // pole y offset intercept at TAI[i] (deg)
        std::tr1::array<double, 2> ut1_taiSlope;    // UT1-TAI slope over range TAI[i] <= date < TAI[i+1] (sec/sec)
        std::tr1::array<double, 2> poleSlopeX;      // pole x offset slope over range TAI[i] <= date < TAI[i+1] (deg/sec)
        std::tr1::array<double, 2> poleSlopeY;      // pole y offset slope over range TAI[i] <= date < TAI[i+1] (deg/sec)

        explicit Earth();
    
        void updateSite(coordConv::Site &site, double tai) const;
    };

}