Home › Navigation › NAVSTAR 84 (USA 545)
NAVSTAR 84 (USA 545) — Live Satellite Tracking (NORAD 64202)
Track NAVSTAR 84 (USA 545) (NORAD catalog number 64202) live on the WatchSat interactive 3D globe above. Its position is propagated in real time from the latest CelesTrak two-line element set using the SGP4/SDP4 orbital model — the same math professional trackers run. It has been on orbit since 2025, launched on the 116th orbital launch of that year (COSPAR designation 2025-116A). As of this element set it had completed roughly 1,039 revolutions of Earth.
Moving at about 3.88 km/s, NAVSTAR 84 (USA 545) operates in medium Earth orbit at roughly 20,162–20,216 km altitude, taking about 12.0 hours per revolution (2.01 orbits a day). The orbit is essentially circular (eccentricity 0.0010). Inclined 55.3° to the equator, it overflies every latitude up to about 55° north and south. Its orbital plane crosses the equator northbound at right ascension 26.1°.
Orbital elements
| Orbit regime | medium Earth orbit (MEO) |
|---|---|
| Perigee × apogee altitude | ~20,162 km × 20,216 km |
| Inclination | 55.31° |
| Orbital period | 718.0 min (2.01 rev/day) |
| Eccentricity | 0.00101 |
| Element set epoch | 2026-10-20 |
| COSPAR designation | 2025-116A |
| NORAD catalog number | 64202 |
This page's orbital elements come from the CelesTrak catalog of 2026-10-23. The live 3D view above fetches its own current CelesTrak data when the page opens, through an edge cache that refreshes roughly every 30 minutes.
About the Navigation group
NAVSTAR 84 (USA 545) is part of the US GPS (NAVSTAR) fleet — one of 156 global-navigation satellites in the WatchSat catalog across GPS, GLONASS, Galileo and BeiDou. GNSS spacecraft broadcast precise time signals from orbits around 20,000 km up; a phone fixes its position by comparing several of them at once. See the whole navigation group live in 3D.
Can you see NAVSTAR 84 (USA 545) from the ground?
Not with the naked eye. At its altitude NAVSTAR 84 (USA 545) is far beyond unaided visibility — following satellites this high takes a telescope and good timing. You can still track it precisely in the live 3D view above, or check the “When can I see it?” panel in the live view.
Related satellites
Nearest catalog neighbors of NAVSTAR 84 (USA 545) in the Navigation group — usually craft from the same or adjacent launches:
- COSMOS 2584 [GLONASS-K2] (NORAD 63130)
- COSMOS 2596 [GLONASS-K1] (NORAD 65590)
- NAVSTAR 83 (USA 440) (NORAD 62339)
- GSAT0233 (GALILEO 33) (NORAD 67160)
- GSAT0234 (GALILEO 34) (NORAD 67162)
- BEIDOU-3 M27 (NORAD 61187)
Browse the Navigation directory or the full satellite directory.
Embed this satellite on your site.
Home · Live satellite map · Satellite directory · Starlink · OneWeb · Navigation satellites · Space stations · Other active satellites · Track the ISS · ISS visible passes · Starlink train · Rocket launches · Aurora forecast · Humans in space · Solar System · Deep Space · Embed widgets · Blog · Guide: spot the ISS · Guide: what is a TLE? · Guide: how many satellites? · Guide: satellite trackers compared · Discovery: Elias 2-24 b · About · FAQ · Data & methodology · Credits · Editorial policy · Accessibility · Contact · Privacy · Terms
© 2026 WatchSat · Not affiliated with any space agency or satellite operator.