GNSS-progress towards implementation

Abstract

Global navigation satellite systems comprising the Navstar GPS and GLONASS systems and to be supplemented by an Inmarsat-3 overlay, will soon be operational. Full Operational Capability (FOC) for GPS can be expected early in 1995. For GLONASS progress towards FOC will be slower with a final completion date probably nearer 1996-98. Particularly in view of the interest in joint GPSlGLONASS initiatives, the progress of both systems towards a full operational complement deserves constant attention.