China's second lunar probe, the Chang'e 2, has been maneuvered into an experimental orbit, in preparation for photographing the moon's Sinus Iridum, or Bay of Rainbows.

On Tuesday, scientists successfully activated four attitude control engines on Chang'e 2. They sent the satellite into an orbit just 15 kilometers above the moon's surface.

Zhou Jianliang, Deputy Chief Designer of Chang'e 2 Measurement & Control System, said, "This move demands extremely precise control. Mountains on the moon can be as high as 10 kilometers. So putting the satellite at 15 kilometers is dangerous. The whole process will last for 1111 seconds. "