China is scheduled to launch its second heavy-lift carrier rocket today.
The Long March-5 Y2 will take off from the Wenchang launch center in the tropical island province of Hainan.
The heavy-lift rocket is able to carry up to 25 tonnes weight.
The launch will be the last drill for the Long March-5 series before it carries the Chang'e-5 lunar probe into space in the latter half of this year.