Watch the Launch

Atlas V 421 | MMS

Atlas V 421

Family:
Configuration: 421

Atlas V is an expendable launch system in the Atlas rocket family. It was formerly operated by Lockheed Martin and is now operated by United Launch Alliance (ULA), a joint venture with Boeing. Each Atlas V rocket uses a Russian-built RD-180 engine burning kerosene and liquid oxygen to power its first stage and an American-built RL10 engine burning liquid hydrogen and liquid oxygen to power its Centaur upper stage. The RD-180 engines are provided by RD Amross, while Aerojet Rocketdyne provides both the RL10 engines and the strap-on boosters used in some configurations. The 421 version uses a 4m wide fairing, 2 solid rocket boosters and one engine on the Centaur stage.

See Details
Specifications
  • Max Stage
    2
  • Length
    58.3 m
  • Diameter
    3.8 m
  • Fairing Diameter
  • Launch Mass
    433.0 T
  • Thrust
Family
  • Name
    Atlas V 421
  • Family
  • Variant
    421
  • Alias
  • Full Name
    Atlas V 421
Payload Capacity
  • Launch Cost
    $123000000
  • Low Earth Orbit
    14067.0 kg
  • Geostationary Transfer Orbit
    6890.0 kg
  • Direct Geostationary
  • Sun-Synchronous Capacity

United Launch Alliance

United Launch Alliance

(ULA)

CEO: Tory Bruno Founded: 2006 Successes: 164 Failures: 0 Pending: 43

Agency Type:

United Launch Alliance (ULA) is a joint venture of Lockheed Martin Space Systems and Boeing Defense, Space & Security. ULA was formed in December 2006 by combining the teams at these companies which provide spacecraft launch services to the government of the United States. ULA launches from both coasts of the US. They launch their Atlas V vehicle from LC-41 in Cape Canaveral and LC-3E at Vandeberg. Their Delta IV launches from LC-37 at Cape Canaveral and LC-6 at Vandenberg.

INFO WIKI

Cape Canaveral SFS, FL, USA

Space Launch Complex 41


Falcon 9
Success
2 days ago
Starlink Group 6-68
Space Launch Complex 40 - Cape Canaveral SFS, FL, USA

A batch of 24 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Falcon 9
Success
2 days, 8 hours ago
Starlink Group 9-11
Space Launch Complex 4E - Vandenberg SFB, CA, USA

A batch of 20 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Long March 4B
Success
2 days, 15 hours ago
Haiyang 4-01
Launch Complex 9 - Taiyuan Satellite Launch Center, People's Republic of China

Next generation Chinese ocean salinity measurements satellite to study ocean climatic changes and its effects on ecology and biological cycles.


Falcon 9
Success
4 days, 16 hours ago
Starlink Group 6-69
Space Launch Complex 40 - Cape Canaveral SFS, FL, USA

A batch of 24 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Falcon 9
Success
4 days, 20 hours ago
Koreasat 6A
Launch Complex 39A - Kennedy Space Center, FL, USA

The Koreasat 6A spacecraft, built by Thales Alenia Space, will have 20 transponders for fixed satellite services and six for TV broadcasting to repla…


Kinetica 1
Success
5 days, 9 hours ago
15 satellites
Launch Area 130 - Jiuquan Satellite Launch Center, People's Republic of China

Launch of 15 satellites on share-ride to SSO: * Shiyan 26 A/B/C * Jilin-1 High Resolution-05B * Jilin-1 Platform-02A-03 * Yunyao-1 31-36 * Xig…


Falcon 9
Success
1 week ago
Starlink Group 9-10
Space Launch Complex 4E - Vandenberg SFB, CA, USA

A batch of 20 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Long March 2
Success
1 week ago
PIESAT-2 01-04
Launch Area 4 (SLS-2 / 603) - Jiuquan Satellite Launch Center, People's Republic of China

4 X-band synthetic-aperture radar Earth observation satellites for the Chinese Earth observation satellite company PIESAT.


Falcon 9
Success
1 week, 1 day ago
Starlink Group 6-77
Space Launch Complex 40 - Cape Canaveral SFS, FL, USA

A batch of 23 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.


Electron
Success
1 week, 4 days ago
Changes In Latitudes, Changes In Attitudes (Protosat-1)
Rocket Lab Launch Complex 1B - Rocket Lab Launch Complex 1, Mahia Peninsula, New Zealand

Launch of a yet to identified satellite to SSO for an undisclosed customer. The customer is highly likely to be Low Earth Orbit communication satelli…