Space Agency USN
| Full disclosure | US Navy |
| Code | USN |
| Country | USA |
| WWW | US Navy |
| Wikipedia | http://en.wikipedia.org/wiki/US_Navy |
| Type | Government |
The Navy was competed with the Army to put the first American satellite into orbit. Their first two Vanguard missions failed, with the second being a highly publicized failure, as it exploded on the launchpad. They went on to put 3 satellites into orbit but did not beat the Army to be the first. Their work in space continues today largely on military satellites.
Where is the ISS? Track the position of the International Space Station and other satellites live!
The service uses data provided by space agencies (TLE), allowing users around the world to monitor the current position of satellites and the projected route of their flights over specific locations on Earth.