LEO
- satellite imaging
- ISS
- net around earth
MEO
- satellite navigation
- GPS
- earth observation
GEO
- fixed location
- tele-comm
- weather
- 3 equally spaced
- circle above the equator ➡️ west to east
Polar Orbit
- covers entire surface
- LEO
- N to S
SSO - Sun Synchronous Orbit
- polar orbit
- fixed position wrt Sun
- weather
- storms
- forest fires
- floods
- rising sea
Transfer Orbits
- one orbit to another
- interplanetary missions