LoadingSunEphemeris 4.4

LoadingSunEphemeris 4.4

public class LoadingSunEphemeris {

   public static void main(String[] args) throws PatriusException, IOException, URISyntaxException {

       // Patrius Dataset initialization
       PatriusDataset.addResourcesFromPatriusDataset() ;
       
       //String[] fileNames = { "unxp2000.405", "unxp1950.405", "unxp2700.406" };
       String[] fileNames = { "unxp.*.405", "unxp.*.406" };
       
       // data for Sun coordinates output
       final TimeScale tuc = TimeScalesFactory.getUTC();       
       final AbsoluteDate date = new AbsoluteDate("2010-01-01T12:00:00.000", tuc);
       final Frame icrf = FramesFactory.getICRF();
       
       for (int i = 0; i < fileNames.length; i++) {
           
           final JPLEphemeridesLoader loader = new JPLEphemeridesLoader(fileNames[i], EphemerisType.SUN);
           
           CelestialBodyFactory.clearCelestialBodyLoaders();
           CelestialBodyFactory.addCelestialBodyLoader(CelestialBodyFactory.SUN, loader);
           
           // Using the loading theory
           final CelestialBody sun = loader.loadCelestialBody(CelestialBodyFactory.SUN);
           
           // Coordinates of the Sun at a given date and reference frame
           PVCoordinates pv = sun.getPVCoordinates(date, icrf);
           
           System.out.println("");
           System.out.println(pv.getPosition().getX());
           System.out.println(pv.getPosition().getY());
           System.out.println(pv.getPosition().getZ());
       }
       
   }

}