BEIJING China's second lunar probe, Chang'e-2, successfully deployed into an Earth-moon transfer orbit Friday after blasting into space aboard a Long March 3C rocket.
Using the double LGA orbit as the initial guess, we propose an optimization method of the Earth-Moon transfer using the LGA in the RFBP.
The results indicate that the LGA is an important technique in the Earth-Moon transfer design, which can efficiently save the fuel cost, but the LGA transfer duration must be larger than a period of the Earth-Moon system.
Preliminary numerical results of inter-moon transfers in the Jovian system are presented.
In this paper, optimal two-impulse Earth-Moon transfers using the lunar gravity assist (LGA) are designed and investigated in the restricted four-body problem (RFBP) with the Sun, the Earth, and the Moon as primaries.
The inter-moon transfers of the Jovian system offer obvious advantages in terms of scientific return, but are also challenging to design and optimize due in part to the large, often chaotic, sensitivities associated with repeated close encounters of the planetary moons.
However, existing targeting methods require sufficient experience to construct Earth-Moon chaotic transfer orbits, which is not an easy task to the untrained eye.
In particular, I wondered if he shared nasa's concern that if Galileo were to crash into the distant moon it could transfer microbes from Earth to Europa's ocean.
In that case, the tidal bulge stays directly under the moon, there is no transfer of angular momentum, and the orbital period will not change.
Furthermore, an innovative concept is proposed to transfer from the Earth-Moon collinear libration point to the triangle point using the Sun-Earth/Moon libration point.
