Atlas Agena A
USA Wikipedia 
Built & Operated By
Convair
Commercial · founded 1943
Family
Atlas
variant Agena A
Maiden Flight
26 FEB 1960
About
The Atlas-Agena was an American expendable launch system derived from the SM-65 Atlas missile. It was a member of the Atlas family of rockets, and was launched 109 times between 1960 and 1978.
Vehicle Specifications
Height
36 m
Diameter
3 m
Launch Mass
155 T
Thrust
1,340 kN
Stages
2
Configuration
Expendable
Launch Record
Total Launches
3
Successful
1
Failed
2
Performance
To LEO
1,000 kg