Examples with UT1Scale org.orekit.time.UT1Scale used on opensource projects

Example 21 with UT1Scale

use of org.orekit.time.UT1Scale in project Orekit by CS-SI.

the class IERSConventionsTest method testGMSTRate2010.

@Test
public void testGMSTRate2010() throws OrekitException {
    final UT1Scale ut1 = TimeScalesFactory.getUT1(IERSConventions.IERS_2010, true);
    checkGMSTRate(IERSConventions.IERS_2010.getGMSTFunction(ut1), IERSConventions.IERS_2010.getGMSTRateFunction(ut1), AbsoluteDate.J2000_EPOCH.shiftedBy(-0.4 * Constants.JULIAN_DAY), 0.8 * Constants.JULIAN_DAY, 600.0, 10.0, 8.0e-13);
}

Example 22 with UT1Scale

use of org.orekit.time.UT1Scale in project Orekit by CS-SI.

the class IERSConventionsTest method testTideFrequencyDependenceFunction2003FieldConsistency.

@Test
public void testTideFrequencyDependenceFunction2003FieldConsistency() throws OrekitException {
    final UT1Scale ut1 = TimeScalesFactory.getUT1(IERSConventions.IERS_2003, true);
    checkVectorFunctionConsistency(IERSConventions.IERS_2003.getTideFrequencyDependenceFunction(ut1), 5, AbsoluteDate.J2000_EPOCH.shiftedBy(-0.4 * Constants.JULIAN_DAY), 0.8 * Constants.JULIAN_DAY, 600.0, 10.0, 4.0e-24, 4.0e-22);
}

Example 23 with UT1Scale

use of org.orekit.time.UT1Scale in project Orekit by CS-SI.

the class IERSConventionsTest method testTideFrequencyDependenceFunction2010FieldConsistency.

@Test
public void testTideFrequencyDependenceFunction2010FieldConsistency() throws OrekitException {
    final UT1Scale ut1 = TimeScalesFactory.getUT1(IERSConventions.IERS_2010, true);
    checkVectorFunctionConsistency(IERSConventions.IERS_2010.getTideFrequencyDependenceFunction(ut1), 5, AbsoluteDate.J2000_EPOCH.shiftedBy(-0.4 * Constants.JULIAN_DAY), 0.8 * Constants.JULIAN_DAY, 600.0, 10.0, 4.0e-24, 4.0e-22);
}

Example 24 with UT1Scale

use of org.orekit.time.UT1Scale in project Orekit by CS-SI.

the class IERSConventionsTest method testGMST2000vs2006.

@Test
public void testGMST2000vs2006() throws OrekitException {
    final UT1Scale ut1 = TimeScalesFactory.getUT1(IERSConventions.IERS_2010, true);
    final TimeScalarFunction gmst00 = IERSConventions.IERS_2003.getGMSTFunction(ut1);
    final TimeScalarFunction gmst06 = IERSConventions.IERS_2010.getGMSTFunction(ut1);
    final DSFactory factory = new DSFactory(1, 1);
    final FieldAbsoluteDate<DerivativeStructure> ds2000 = FieldAbsoluteDate.getJ2000Epoch(factory.getDerivativeField());
    for (double dt = 0; dt < 10 * Constants.JULIAN_YEAR; dt += 10 * Constants.JULIAN_DAY) {
        FieldAbsoluteDate<DerivativeStructure> date = ds2000.shiftedBy(factory.variable(0, dt));
        DerivativeStructure delta = gmst06.value(date).subtract(gmst00.value(date));
        // GMST2006 and GMST2000 are similar to about 0.15 milli-arcseconds between 2000 and 2010
        Assert.assertEquals(0.0, MathUtils.normalizeAngle(delta.getValue(), 0.0), 7e-10);
        Assert.assertEquals(0.0, delta.getPartialDerivative(1), 3.0e-18);
    }
}

Example 25 with UT1Scale

use of org.orekit.time.UT1Scale in project Orekit by CS-SI.

the class IERSConventionsTest method testTideFrequencyDependenceFunction1996FieldConsistency.

@Test
public void testTideFrequencyDependenceFunction1996FieldConsistency() throws OrekitException {
    final UT1Scale ut1 = TimeScalesFactory.getUT1(IERSConventions.IERS_1996, true);
    checkVectorFunctionConsistency(IERSConventions.IERS_1996.getTideFrequencyDependenceFunction(ut1), 5, AbsoluteDate.J2000_EPOCH.shiftedBy(-0.4 * Constants.JULIAN_DAY), 0.8 * Constants.JULIAN_DAY, 600.0, 10.0, 4.0e-24, 4.0e-22);
}