The sixth satellite in the WGS system will be operational in 2014.
New propulsion system touted as weight, cost saver.
GPS system designed to boost nav capabilities by replacing aging satellites in orbit.
MUOS-2 is part of a next generation narrowband military communication system.
DOD designates National Geospatial-Intelligence College as training institution.
The satellite will affordably replace aging GPS satellites in orbit and improve capabilities.