According to the China Satellite Navigation Office, the last BDS constellation satellite has completed the on-ground technical tests and the propellant filling，with the pre-launch status being set, at Xichang Satellite Launch Center. The Long March 3B launch vehicle for the mission has completed all pre-filling tests with all functions and performances qualifying for the mission requirements. Filling of the regular propellant and the cryogenic propellant is imminent and the launch will be carried out very soon.