BEIJING, Oct. 19 (Xinhua) -- The Shenzhou-11 manned spacecraft successfully completed its automated docking with the orbiting Tiangong-2 space lab at 3:31 a.m. Wednesday Beijing Time, according to Beijing Aerospace Control Center (BACC).

Shenzhou-11, which was launched Monday morning from northwest China's Gobi Desert, began to approach Tiangong-2 automatically at 1:11 a.m. Wednesday and made contact with the space lab at 3:24 a.m..

The rendezvous took place in the orbit about 393 kilometers above Earth.

The two astronauts aboard Shenzhou-11, Jing Haipeng and Chen Dong, monitored and reported on the docking operation, relaying their findings to the control center.

According to the mission schedule, once they enter the space module, the astronauts will stay there for 30 days.

Shenzhou-11, China's sixth manned spacecraft, will undertake the longest-ever space mission in the country. The two astronauts will spend a total of 33 days in space.

Tiangong-2 was sent into space on Sept. 15. It is hailed as China's first space lab "in the strict sense" and a key step in building a permanent space station, which the country aims to accomplish by 2020.