After weeks of delay, a rocket carrying a secret satellite for the US National Surveillance Office was finally launched from the Vandenberg Air Force Base on Saturday.
The 233 ft Delta IV Heavy rocket was lifted from the Santa Barbara County base at 11:10 a.m.
The launch has been repeatedly rescheduled since December 7 for reasons including hydrogen leakage, strong winds and problems with ground communication equipment. On December 8, United Launch Alliance canceled an attempt just seven seconds before the launch schedule.
It postponed the mission on January 5 indefinitely before being given a "unanimous vote" on Friday, according to the ULA website.
This group is a joint venture of Lockheed Martin and Boeing. The mission details, dubbed NROL-71, were not released.
A 40 percent chance of favorable weather conditions in estimates on Saturday. Usually, rockets can be seen in Southern California within minutes of taking off from the Central Coast airbase.
The Associated Press contributed to this report.