public void AxesXYToRaDecTest(double x, double y)
 {
     double[] raDec = model.AxesXYToRaDec(new double[] { x, y }, timeRecord);
     double[] axes  = model.RaDecToAxesXY(raDec, timeRecord);
     System.Diagnostics.Debug.WriteLine($"Original Axes = {x}/{y}, raDec = {raDec[0]}/{raDec[1]}, axes = {axes[0]}/{axes[1]}");
     Assert.IsTrue(Angle.AreSameDegrees(x, axes[0], tolerance));
     Assert.IsTrue(Angle.AreSameDegrees(y, axes[1], tolerance));
 }