☰ Satellite Tracker menu

NAVSTAR 81 (USA 319) (NORAD 48859)

NAVSTAR 81 (USA 319) is a navigation (gnss) satellite (NORAD 48859) in a MEO orbit 20104 by 20261 km above the Earth, circling the planet every 718 minutes. Right now it is over latitude -8°, longitude 154.6° at an altitude of 20127 km.

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

Where is NAVSTAR 81 (USA 319) now?

Latitude: -7.989°
Longitude: 154.6°
Altitude: 20127.2 km
Speed: 3.882 km/s
Footprint radius: 8469 km

Snapshot at page load. Updates every second when JavaScript is on.

Next passes over your location

Set your location to see the next passes.

Orbit and identity

48859NORAD catalog number

2021-054AInternational designator

Navigation (GNSS)Category

MEOOrbit class

717.99 minOrbital period

20104 × 20261 kmPerigee × apogee altitude

55.1°Inclination

0.002951Eccentricity

2.0056Revolutions per day

2021Launch year

Orbital elements epoch: 2026-10-27T15:16:59 UTC (3.2 days ago). Positions drift from reality as the elements age; fresh elements are fetched automatically.

Open on the live radar

More in Navigation (GNSS)

All navigation (gnss)

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