USA-319

USA-319
Artist's rendering of GPS-III SV05 in orbit
NamesNavstar 81
GPS-III SV05
Neil Armstrong
Mission typeNavigation
OperatorUSSF
COSPAR ID2021-054A Edit this at Wikidata
SATCAT no.48859
Mission duration15 years (planned)
Spacecraft properties
SpacecraftGPS-III SV05
Spacecraft typeGPS Block III
ManufacturerLockheed Martin
Launch mass4331 kg
Powerwatts
Start of mission
Launch date17 June 2021, 16:09 UTC
RocketFalcon 9 B1062.2
Launch siteCape Canaveral, SLC-40
ContractorSpaceX
Orbital parameters
Reference systemGeocentric orbit
RegimeMedium Earth orbit
(Semi-synchronous orbit)
Perigee altitude20,163 km (12,529 mi)
Apogee altitude20,216 km (12,562 mi)
Inclination55.3°
Period718.0 minutes

USA-319, also known as GPS-III SV05, NAVSTAR 81 or Neil Armstrong, is a United States navigation satellite which forms part of the Global Positioning System. It was the fifth GPS Block III satellite to be launched.[1]

Satellite

SV05 is the fifth GPS Block III satellite. Satellite construction was completed in early 2021.

The spacecraft is built on the Lockheed Martin A2100 satellite bus, and weighs approximately 4,331 kg (9,548 lb).[1]

SV05 is the 24th operational Military Code (M-Code) satellite to join the GPS constellation, the last required for M-Code Full Operational Capability.

Launch

USA-319 was launched by SpaceX on 17 June 2021 at 16:09 UTC, atop Falcon 9 booster B1062. This booster had previously launched SV04 a year prior.

The launch took place from SLC-40 at Cape Canaveral Space Force Station, and placed USA-319 directly into semi-synchronous orbit. About eight minutes after launch, Falcon 9 successfully landed on the droneship Just Read the Instructions.[1]

Orbit

As of 2023, USA-319 was in a 55.3 degree inclination orbit with a perigee of 20,163 kilometers (12,529 mi) and an apogee of 20,216 km (12,562 mi).[2]

References

  1. ^ a b c Fletcher, Colin (17 June 2021). "SpaceX launches newest GPS satellite on reused booster". NASASpaceFlight.com. Retrieved 19 June 2023.
  2. ^ "Technical details for satellite NAVSTAR 81 (USA 319)". N2YO.com - Real Time Satellite Tracking and Predictions. Retrieved 19 June 2023.