NAVSTAR 84 (USA 545)

NavigationMilitaryMEOUnited States

NAVSTAR 84 (USA 545) is a navigation satellite, with ownership listed as United States in CelesTrak's catalogue, currently in medium Earth orbit near 20,163 km. It completes one orbit of Earth roughly every 718 minutes at an inclination of 55.3°. It was launched in 2025. Track its live position and see when it passes over your location on azmth.

Orbital data

NORAD ID: 64202
COSPAR ID: 2025-116A
Type: Navigation
Orbit: MEO
Perigee (lowest): 20,163 km
Apogee (highest): 20,216 km
Inclination: 55.31°
Orbital period: 718 min
Launch year: 2025
Owner (CelesTrak): United States

Orbital data updated: 2026-10-18 · from CelesTrak, refreshed every 2 hours.

Who operates it

United StatesLIVEActive

Navigation

GCAT lists it as GPS III SV08.

Official description

“The GPS III satellite, equipped with M-code technology, provides the warfighter with a capability that is three-times more accurate, and eight-times more resistant to jamming.”

US Space Force, 30 May 2025

Independent assessment

GCAT classes it as a military satellite for navigation and records it as active (17 Oct 2026).

Data: GCAT · CC BY 4.0 Class, mission and status adapted from GCAT by Jonathan McDowell, CC BY 4.0, data update 17 Oct 2026.

Military satellites, counted and explained →

About MEO orbit

Medium Earth Orbit. Between 2,000 and 35,786 km. Home to navigation constellations like GPS (~20,200 km), Galileo, and BeiDou. Orbital period 2 to 24 hours.