Marecs is operated by ESA for Inmarsat. Marecs is operated by ESA for Inmarsat. Redundant sun sensors provide 0.04 deg knowledge. Hydrazine propulsion system for station-keeping. These provide 35 two-way voice channels plus search and rescue capabilities.
All antennas have full Earth coverage.
Move to a new position. Last update 10 June 1999. Contact Mark Wade with any corrections, additions, or comments.