7. Glossary

Keplerian; Keplerian

Relating to the motion obtained in the two-body problem.

Orbital parameters

Geometric elements for locating a Keplerian orbit in a Galilean frame of reference.

Geosynchronous; geosynchronous

Whose period of revolution is equal to that of the Earth in space (23 h 56 min 04 s).

Geostationary; geostationary

Appears immobile to the terrestrial observer.