Aligned with the earth. Refers to geostationary earth orbit (GEO) satellites that revolve around the equator at the same rotational speed as the earth. Appearing as though they are not moving at all, GEOs are always above the same location on the planet. See geosynchronous
GEOs Travel With the Earth
Geostationary satellites travel at earth speed and are always in the same place above the earth. They also cover a large geographic area.