22 June 2017
China's Tianzhou 1 cargo spacecraft has begun a three-month independent flight after detaching from the Tiangong II space laboratory on 21 June morning, according to the China Manned Space Agency. The un-docking sequence started at 9:17 am and lasted about 30 minutes. Tianzhou 1 now operates in an orbit nearly 390 kilometers above the ground, the agency said in a news release on 21 June.
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