Atlas V (2002-Active)
First Flight: August 21, 2002 (for the 401 variant)
Last Flight: (Active)
Stages: 2
Total Mass: 334.5 tons
Payload Mass: 9,370-29,400 kg to LEO; 4,750-13,000 kg to GTO
Diameter: 3.81 m
Length: 58.3 m
Booster Stage – Optional for Base Variants
Type: Optional Aerojet Boosters
Arrangement: 1 to 5 boosters with 1 Solid each
Thrust (kN): 1,270 for each booster
Propellant: Solid
ISP: 275 s
ISP (sea level):
Burn Time: 94 s
Gross Mass: ?
Booster Stage – Atlas V Heavy
Type: Optional Atlas CCB Boosters
Arrangement: 2 boosters with 1 x RD-180
Thrust (kN): 8,304 (total)
Propellant: RP-1/LOX
ISP: 311 s
ISP (sea level):
Burn Time: 253 s
Gross Mass: ?
First Stage
Type: Atlas CCB Core
Arrangement: 1 x RD-180
Thrust (kN): 4,152
Propellant: RP-1/LOX
ISP: 311 s
ISP (sea level):
Burn Time: 253 s
Gross Mass: ?
Second Stage
Type: Atlas V XX1 or XX2 Centaur Core
Arrangement: 1 x or 2 x RL10A
Thrust (kN): 99.2 or 185
Propellant: LH2/LOX
ISP: 449-451 s
ISP (sea level):
Burn Time: 842 s or 421 s
Gross Mass: ?