MISSION NAME
NROL-107 (Silent Barker)
Status
Success
DATE
10 SEP 2023
LAUNCH PROVIDER
![United Launch Alliance + -img](https://apiv2.spacerealm.live/static/images/company-logo/ula/logo.png)
United Launch Alliance
Launch Pad
Space Launch Complex 41
Description
Classified space situational awareness (SSA) payload for the US National Reconnaissance Office (NRO).
![Atlas V 551 Atlas V 551](https://spacelaunchnow-prod-east.nyc3.digitaloceanspaces.com/media/images/atlas2520v2520551_image_20190224012316.jpeg)
Atlas V 551
Rocket Description
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 standard payload fairing sizes are 4 or 5 meters in diameter and of various lengths. Fairings sizes as large as 7.2 m in diameter and up to 32.3 m in length have been considered. The rocket is assembled in Decatur, Alabama and Harlingen, Texas.