.. _program_listing_file_environment_solar_system.h:

Program Listing for File solar_system.h
=======================================

|exhale_lsh| :ref:`Return to documentation for file <file_environment_solar_system.h>` (``environment/solar_system.h``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   #pragma once
   
   #include "lupnt/core/constants.h"
   
   namespace lupnt {
   
     Real MeanObliquity(Real mjd_tt);
     Mat3 Equatorial2EclipticMatrix(Real mjd_tt);
     Mat3 PrecessionMatrix(Real mjd_1, Real mjd_2);
     std::pair<Real, Real> NutAngles(Real mjd_tt);
     Mat3 NutationMatrix(Real mjd_tt);
     Mat3 NutationMatrixLowPrecision(Real mjd_tt);
     Real EquinoxEquation(Real mjd_tt);
   
     Vec3 SunPositionLowPrecision(Real mjd_tt);
     Vec3 MoonPositionLowPrecision(Real mjd_tt);
   
     Mat3 GreenwichHourAngleMatrix(Real mjd_ut1);
   
     Vec4 PlanetOrientation(BodyId id, Real t_tdb);
     Mat3 RotPosInertialToBodyFixed(BodyId id, Real t_tdb);
     Mat3 RotPosBodyFixedToInertial(BodyId id, Real t_tdb);
     Mat6 RotPosVelBodyFixedToInertial(BodyId id, Real t_tdb);
     Mat6 RotPosVelInertialToBodyFixed(BodyId id, Real t_tdb);
   
   }  // namespace lupnt