References
- http://satellite.argospress.com/sputni.htm
- http://satellite.argospress.com/intels.htm
- http://solarsystem.nasa.gov/planets/index.htm
- http://www.losangeles.af.mil/SMC/PA/Fact Sheets/dsp-fs.htm
- EADS Sodem Low Cost Digital Sun Sensor Catalogue
- Ithaco Space Systems Catalogue
- Jena-Optronik ASTRO series Star Tracker Catalogue
- Honeywell Aerospace Electronic Systems Catalogue
- Cyrus D. Jilla, David W. Miller 1997, 'Satellite Design:Past, Present and Future', International Joumal of Small Satellite Engineering