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Specification	Atlas IIIB Lockheed Martin × remove	Soyuz U Russian Federal Space Agency (ROSCOSMOS) × remove
Flights	4	714
Success rate	100%	97.2%
Thrust	4,149 kN	—
Height	52.8 m	51.1 m
Diameter	3.05 m	2.95 m
Launch mass	213 t	313 t
LEO capacity	10,218 kg	6,900 kg
GTO capacity	4,498 kg	—
Launch cost	—	—
Reusable	No	No
Stages	2	3

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