Path of the jet in the sky plane. The different lines refer to slightly different time delays. The x-axis corresponds to Ω and the y-axis to i, both given in degrees. The center of the helix is at (1.8, 0), and there is a foreshortening factor of 3.5 which flattens the circular jet profile along the x-axis to an ellipse. The jet is taken to move to the positive x-direction. The cross marks the origin of the jet.