2007 in spaceflight Moon. Japan's Kaguya orbiter, along with the smaller Okina and Ouna relay spacecraft, was launched on 14 September. The spacecraft entered Selenocentric orbit on 3 October. China launched its first Lunar probe, Chang'e 1, on 24 October, with the spacecraft entering Selenocentric orbit on 5 November. In 2009, two satellites launched into highly elliptical Earth orbits in 2007 as part of the THEMIS mission were also sent to the Moon. They are expected to arrive in October 2010. In August, the NASA Phoenix spacecraft was launched towards Mars, followed by the Dawn mission to the Asteroid belt in September. Cassini
Lunar Lander (spacecraft) rotation of the Moon). <br> Batteries are used to bridge short periods without solar power. Solar power is unavailable in LLO when the lander goes into lunar eclipse and on the ground, when mountain peaks at the horizon cover the Sun. Landing operations will also be conducted relying solely on battery power. The spacecraft employs three types of engines: All of the 500 and 220 N engines will be needed to deliver sufficient thrust to decelerate the lander from low lunar orbital velocity for controlled final descend. The vehicle uses traditional means of navigation during its transfer trajectory to the