def test_change_frame(self):
obj = SpaceObject(**self.orb_init)
obj.out_frame = 'TEME'
xv1 = obj.get_state(0)
obj.out_frame = 'ITRS'
xv0 = obj.get_state(0)
self.assertEqual(xv1.shape, xv0.shape)
for ind in range(6):
self.assertNotEqual(xv1[ind, 0], xv0[ind, 0])
def test_propagate_epoch(self):
self.orb_init['propagator'] = sorts.propagator.Kepler
obj = SpaceObject(**self.orb_init)
obj.out_frame = obj.in_frame
state0 = obj.get_state(10.0)
obj.propagate(10.0)
state1 = obj.get_state(0.0)
state2 = obj.orbit.cartesian
nt.assert_almost_equal(state0, state1, decimal=5)
nt.assert_almost_equal(state0, state2, decimal=5)
nt.assert_almost_equal(state2, state1, decimal=5)