TRANSIT 1B
- TRANSIT 1B TRANSIT 1B
Object Name TRANSIT 1B
Object Full Name -
Norad ID 31
Cospar ID 1960-003B
Object Type Satellite
Object Status Decayed
Object Class -
End of Life -

Navy Transit 1B was launched into orbit by Thor-Able-Star with navigation payload experiment at Cape Canaveral. It demonstrated the first engine restart in space and the feasiblity of using satellites as navigational aids. Transit spacecraft were developed for updating the inertial navigation systems on board US Navy Polaris submarines, and later for civilian use. The receivers used the known characteristics of the satellites orbit, measured the Doppler shift of the satellites radio signal, and thereby calculated the receivers position on the earth.

Launch Date 1960-04-13
Decay Date 1967-10-05
Launch Vehicle -
Launch Site Air Force Eastern Test Range, Florida, USA
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Country of Operator United States
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Orbit Status Earth Orbit
Orbit -
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Period: 88.7 min
Inclination: 51.2°
Apogee: 220.0 km
Perigee: 201.0 km
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