where are nans coming from

tests/moving_objects/test_chebyvalues.py

@@ -110,7 +110,10 @@ def test_get_ephemerides(self):
         # Test that get_ephemerides works and is accurate.
         cheby_values = ChebyValues()
         cheby_values.set_coefficients(self.cheby_fits)
-        print("cheby_values", cheby_values.coeffs)
+
+        assert np.all(np.isfinite(cheby_values.coeffs["ra"]))
+        assert np.all(np.isfinite(cheby_values.coeffs["dec"]))
+        assert np.all(np.isfinite(cheby_values.coeffs["vmag"]))
         # Multiple times, all objects, all within interval.
         tstep = self.interval / 10.0
         time = np.arange(self.t_start, self.t_start + self.interval, tstep)
@@ -120,7 +123,11 @@ def test_get_ephemerides(self):
             time, obscode=807, time_scale="TAI", by_object=True
         )
         print("ephemerides", ephemerides)
-        print("pyephemerides", "pyephemerides")
+        print("pyephemerides", pyephemerides)
+
+        assert np.all(np.isfinite(ephemerides["ra"]))
+        assert np.all(np.isfinite(pyephemerides["ra"]))
+
         # RA and Dec should agree to 2.5mas (sky_tolerance above)
         pos_residuals = np.sqrt(
             (ephemerides["ra"] - pyephemerides["ra"]) ** 2
@@ -130,7 +137,9 @@ def test_get_ephemerides(self):
             )
             ** 2
         )
-        print("pos_residuals", pos_residuals)
+
+        assert np.all(np.isfinite(pos_residuals))
+
         pos_residuals *= 3600.0 * 1000.0
         # Let's just look at the max residuals in all quantities.
         for k in ("ra", "dec", "dradt", "ddecdt", "geo_dist"):