MOSCOW (Sputnik) – The launch of the rocket was previously rescheduled from Friday to Saturday because of the leak, according to ULA.
"The launch of a United Launch Alliance Atlas V carrying the WorldView-4 satellite is scheduled for Sunday, Sept. 18 to allow the team additional time to evaluate the cause of the ground leak anomaly experienced during propellant tanking," ULA said on Friday.
Atlas V is now expected to launch from the Vandenberg Air Force Base in the US state of California at around 11:30 Pacific Time (18:30 GMT) on Sunday.
The WorldView-4 satellite is a high-resolution commercial imaging satellite built by Lockheed Martin Space Systems Company and owned and operated by DigitalGlobe.