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NAVSTAR 51 (USA 166) (NORAD 27663)

NAVSTAR 51 (USA 166) is a search and rescue satellite (NORAD 27663) in a MEO orbit 19778 by 20588 km above the Earth, circling the planet every 718 minutes. Right now it is over latitude 53.7°, longitude -32° at an altitude of 19904 km.

Live position and ground track (past 45 min, next 100 min)

Where is NAVSTAR 51 (USA 166) now?

Latitude: 53.749°
Longitude: -31.99°
Altitude: 19904 km
Speed: 3.917 km/s
Footprint radius: 8455 km

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Orbit and identity

27663NORAD catalog number

2003-005AInternational designator

Search and rescueCategory

MEOOrbit class

718.01 minOrbital period

19778 × 20588 kmPerigee × apogee altitude

54.86°Inclination

0.015256Eccentricity

2.0055Revolutions per day

2003Launch year

Orbital elements epoch: 2026-10-29T17:46:20 UTC (1.1 days ago). Positions drift from reality as the elements age; fresh elements are fetched automatically.

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Positions are computed from public orbital elements (CelesTrak / US Space Force 18th SDS) with the SGP4 model and are accurate to a few kilometres; amateur radio data from the SatNOGS DB (CC BY-SA). Not for navigation or safety-critical use. Method and limits · Radio coverage map · Live HF propagation data