GEO

Geostationary Earth Orbit

The geostationary orbit altitude is 36000 km above the sea level, and therefore above the GNSS constellation’s altitude (located around 20000 km above sea level).

GEO satellites can still benefit from GNSS signals to perform positioning, navigation, and timing, but they require a special configuration that can be achieved during their design and production. This operation must be done with a tight simulation of the front lobes of GNSS satellites antennas, and require a powerful GNSS Simulator, like Constellator.