Athena II
USA Wikipedia 
Built & Operated By
Lockheed Martin
Commercial · founded 1953
Family
Athena
variant II
Maiden Flight
7 JAN 1998
About
The Athena II is an American small expendable launch system which was used for three launches between 1998 and 1999.
Vehicle Specifications
Height
28.2 m
Diameter
2.36 m
Launch Mass
120 T
Thrust
1,900 kN
Stages
4
Configuration
Expendable
Launch Record
Total Launches
3
Successful
2
Failed
1
Consecutive
1
Performance
To LEO
2,065 kg
To GTO
593 kg