USA-309, also known as GPS-III SV04, NAVSTAR 80 or Sacagawea, is a United States navigation satellite which forms part of the Global Positioning System.

Launch was pushed back several times due to delays with the earlier satellites.

[2] The spacecraft is built on the Lockheed Martin A2100 satellite bus, and weighs in at 4,331 kg (9,548 lb).

[3] USA-309 was launched by SpaceX on 5th of November 2020 at 23:24 UTC atop Falcon 9 booster B1062.

About eight minutes after launch, Falcon 9 B1062 successfully landed on the droneship Of Course I Still Love You.