|Mission duration||15 years (planned)|
|Spacecraft type||GPS Block III|
|Launch mass||4311 kg|
|Start of mission|
|Launch date||5 November 2020, 23:24 UTC|
|Rocket||Falcon 9 Block 5|
|Launch site||Cape Canaveral, SLC-40|
|Reference system||Geocentric orbit|
|Regime||Medium Earth orbit|
|Perigee altitude||20,181 km (12,540 mi)|
|Apogee altitude||20,196 km (12,549 mi)|
USA-309, also known as GPS-III SV04 or Sacagawea, is a United States navigation satellite which forms part of the Global Positioning System. It was the fourth GPS Block III satellite to be launched.
USA-309 was launched by SpaceX on 5th of November 2020 at 23:24 UTC atop Falcon 9 booster B1062. The launch took place from SLC-40 of the Cape Canaveral Air Force Station, and placed USA-309 directly into semi-synchronous orbit. About eight minutes after launch, Falcon 9 B1062 successfully landed on the droneship Of Course I Still Love You.