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Specification	Thor Agena D McDonnell Douglas × remove	Proton K/DM-2 Khrunichev State Research and Production Space Center × remove
Flights	13	110
Success rate	84.6%	93.6%
Thrust	667 kN	—
Height	31 m	—
Diameter	2.44 m	—
Launch mass	56 t	—
LEO capacity	—	—
GTO capacity	—	—
Launch cost	$22.17M	—
Reusable	No	No
Stages	2	—

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