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Atlas·Convair

Atlas V 531

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Specifications

Status
active
Height
60 m
Diameter
3.8 m
Mass
479,000 kg
Stages
2
Payload to LEO
15,530 kg
Payload to GTO
7,450 kg
First flight
2010-08-14
Total launches
5
Success / Fail
5 / 0

Atlas V is an expendable launch system and the fifth major version in the Atlas launch vehicle family. It was developed by Lockheed Martin and has been operated by United Launch Alliance (ULA) since 2006. Primarily used to launch payloads for the United States Department of Defense, NASA, and commercial customers, Atlas V is the longest-serving active rocket in the United States.

Propulsion

Boosters

GEM 631,663 kN
solid (HTPB) · solid
Northrop GrummanIsp 279s (vac)since 20200–5 strap-ons

First stage

RD-1803,830 kN
RP-1 / LOX · staged-combustion
NPO EnergomashIsp 338s (vac)since 2000

Second stage

RL10110 kN
LH2 / LOX · expander
Aerojet RocketdyneIsp 451s (vac)since 1963Centaur

Payloads it launched

6 loaded
SES-21
GEO
SES-20
GEO
USA 310
MEO
AEHF-3 (USA 246)
GEO
AEHF-2 (USA 235)
GEO
AEHF-1 (USA 214)
GEO