Thor DM-21 Ablestar | Transit 1B
The Transit system was the first satellite navigation system to be used operationally. The system was primarily used by the U.S. Navy to provide accurate location information to its Polaris ballistic missile submarines, and it was also used as a navigation system by the Navy’s surface ships, as well as for hydrographic survey and geodetic surveying.
The Thor-Ablestar, or Thor Able-Star, also known as Thor-Epsilon was an early American expendable launch system consisting of a PGM-17 Thor missile, with an Ablestar upper stage. It was a member of the Thor family of rockets, and was derived from the Thor-Able.
When is the Thor DM-21 Ablestar | Transit 1B launch?
What rocket is being used for Transit 1B?
Where is the Thor DM-21 Ablestar | Transit 1B launching from?
What orbit is Transit 1B going to?
Who is launching Transit 1B?
Can I watch the Thor DM-21 Ablestar | Transit 1B launch live?
Mission Profile
Transit 1B was a Thor DM-21 Ablestar mission operated by United States Air Force that lifted off from Space Launch Complex 17B, Cape Canaveral SFS, FL, USA on April 13, 1960. The flight carried its payload on a navigation mission to Polar Orbit. The launch was a success.