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Specification	Thor DM-21 Agena-B United States Air Force × remove	Voskhod Soviet Space Program × remove	Electron Rocket Lab × remove
Flights	40	299	91
Success rate	80%	95.7%	95.6%
Thrust	—	—	162 kN
Height	—	—	18 m
Diameter	—	—	1.2 m
Launch mass	—	—	13 t
LEO capacity	—	—	300 kg
GTO capacity	—	—	—
Launch cost	—	—	$6M
Reusable	No	No	No
Stages	—	—	3

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