- Efecto Doppler. 1’06’’	- Transit: Three decades of helping the world find its way (1996). 59’	- Transit satellite for navigation. 27’19’’

- How to navigate with the sun. 5’	- How to navigate by the stars. 2’01’’	- Star Identification pt1-2 1942 US Navy Basic Astronomy for Navigation 13'

- Celestial Navigation Math. 10’09’’	- Celestial sphere animation. 1’46’’	- How to use a sextant: Wikipedia animation. 0'20’’

- Getting started in celestial navigation (the marine sextant). 7’51’’	- Getting started in celestial navigation (the polar star). 9’37’	- Introductory astronomy: positions on the celestial sphere. 28’02’’

- Lost at sea: the search of Longitude. 54’22’	- Parameters of an orbit of a satellite. 1’08’’	- Classical/Keplerian orbital elements. 15’02’’

- Omega navigation system 1969. Navy training film. 17’09’’	- How Loran works. 2’GPS, by Pravesh Asthana (14 vνdeos)	- GPS, by Pravesh Asthana (14 vνdeos)

- GLONASS - Russian Global Satellite Navigation System	- Galileo, Global Navigation Satellite System. 3’07’’	- Galileo Navigation System. 3’38’’

- Documental – Navegaciσn por satιlite. 12’	- La tecnologνa que nos rodea, satιlites. 58’11’’	- 30 satellites to launch for European Global Navigation System. 3’09’’

- Introducing the Beidou (COMPASS) Navigation Satellite System. 8’25’’	- Galileo: how does it work? 3’51’’