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test_py_astro.py

+import matplotlib.pyplot as plt
+
+from astropy import units as u
+
+from poliastro.bodies import Earth, Mars, Sun
+from poliastro.twobody import Orbit
+
+
+# Data from Curtis, example 4.3
+r = [-6045, -3490, 2500] * u.km
+v = [-3.457, 6.618, 2.533] * u.km / u.s
+
+ss = Orbit.from_vectors(Earth, r, v)
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