First Modifier	Category	Code	Remarks
Low Earth Orbit (LEO)	Orbit	01
Medium Earth Orbit  (MEO)	Orbit	02
High Earth Orbit  (HEO)	Orbit	03
Geosynchronous Orbit (GSO)	Orbit	04
Geostationary Orbit (GO)	Orbit	05
Molniya Orbit (MO)	Orbit	06
{Disused}		07