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Specification	Vulcan VC2S United Launch Alliance × remove	Proton K/DM-2 Khrunichev State Research and Production Space Center × remove
Flights	2	110
Success rate	100%	93.6%
Thrust	9,303 kN	—
Height	61.6 m	—
Diameter	5.4 m	—
Launch mass	663 t	—
LEO capacity	19,000 kg	—
GTO capacity	8,400 kg	—
Launch cost	—	—
Reusable	No	No
Stages	2	—

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