Atlas V 421 | NROL-52
Launch Successful
L - -- : -- : -- : --
Instantaneous launch window.
Launch Window
Oct. 15, 2017, 7:28 a.m. - Oct. 15, 2017, 7:28 a.m.
Instantaneous launch window.
Oct. 15, 2017, 7:28 a.m. - Oct. 15, 2017, 7:28 a.m.
Classified payload for the U.S. National Reconnaissance Office.
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 DetailsUnited 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 WIKINote: Payload and customer identities unconfirmed, identification based on mission patch and rocket drop zones analysis. 3rd of the BlackSky Gen-3…
3 Chinese satellites described as for “Space Environment Measurements” purposes. Actual usage not known.
A batch of 29 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
Sub-orbital launch under Rocket Lab’s Hypersonic Accelerator Suborbital Test Electron (HASTE) program. This mission was lead by MDA and deployed a…
The Sentinel-6 Michael Freilich (launched November 2020) and Sentinel-6B make up the Sentinel-6 mission, also known as Jason Continuity of Service (…
A batch of 29 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
A batch of 29 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
The ViaSat-3 is a series of three Ka-band satellites is expected to provide vastly superior capabilities in terms of service speed and flexibility fo…
Second flight of Blue Origin's New Glenn launch vehicle carrying the Escape and Plasma Acceleration and Dynamics Explorers (EscaPADE), a dual-spacecr…
A batch of 29 satellites for the Starlink mega-constellation - SpaceX's project for space-based Internet communication system.
