"The lander will now undergo final processing in preparation for a March launch aboard a United Launch Alliance Atlas V 401 rocket," the release said.
The 1,380-pound spacecraft consists of a lander, aero-shell and cruise stage. It is designed to study the deep interior of Mars and will carry a seismometer instrument (SEIS) developed by the French Space Agency, or CNES, Lockheed Martin stated.
"The spacecraft and its environmental testing are complete, and now the launch team is moving to California to perform final preparations for a March launch," Lockheed Martin Space Systems InSight program manager Stu Spath said in the release.
The InSight program is managed by the US Jet Propulsion Laboratory while CNES as well as the German Aerospace Center are each contributing a science instrument to the two-year scientific mission, the release said.