Research Article

Initial Parameter Analysis about Resonant Orbits in Earth-Moon System

Figure 4

J2000 and GRC views of spacecraft in a 1:2 resonance (e = 0.6) with the Moon. The four initial phases between the Moon and spacecraft are θ0 = 0°, 90°, 180°, and 270°.
(a) J2000 view
(b) GRC view