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Specification	Thor Delta E1 McDonnell Douglas × remove	Proton K/DM-2 Khrunichev State Research and Production Space Center × remove
Flights	17	110
Success rate	94.1%	93.6%
Thrust	1,450 kN	—
Height	28 m	—
Diameter	2.44 m	—
Launch mass	68 t	—
LEO capacity	540 kg	—
GTO capacity	150 kg	—
Launch cost	—	—
Reusable	No	No
Stages	4	—

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