@Test
public void testGetEndTimeValue() throws Exception {

    assertEquals(8.0, di.getValue(endTimeMJD, 45, -90));
    assertEquals(11.2, di.getValue(endTimeMJD, 45, 90));
    assertEquals(2.7, di.getValue(endTimeMJD, -45, -90));
    assertEquals(12.25, di.getValue(endTimeMJD, -45, 90));
}