def test_pole_tides(self): t = gpstk.CivilTime(2000).toCommonTime() p = gpstk.Position(1000.0, 2000.0, 3000.0) x = 5.0 y = 10.0 trip = gpstk.poleTides(t, p, x, y) self.assertAlmostEqual(-0.03128457731297798, trip[0])