USA 485

USA 485 is an active satellite operated by United States, launched on 2025-01-21 from Cape Canaveral, Florida. As a relatively recent addition to the catalogue, its orbital elements are well-characterised. It orbits in Low Earth Orbit (LEO) at altitudes between 340 km and 342 km with an inclination of 43.0°. It travels at approximately 27,742 km/h (7.71 km/s), completing one full orbit every 91 minutes — that’s roughly 15.76 orbits per day. Its near-circular orbit (eccentricity close to zero) means it maintains a very consistent altitude throughout each revolution. At its current altitude, the estimated orbital lifetime before atmospheric re-entry is months to ~1 year. Orbital Radar tracks USA 485 in real time using the latest two-line element set (TLE) data, providing live position, altitude, speed and orbital path updated continuously.

USA 485 orbits at an average altitude of 341 km in the lower reaches of Low Earth Orbit, where atmospheric drag is significant and orbital lifetimes are measured in months to a few years. This is the busiest corridor in space — home to crewed spacecraft, rapid-revisit imaging satellites and the densest part of the Starlink constellation. Within ±50 km of USA 485’s average altitude, there are currently 1,118 active payloads and 37 tracked debris or rocket body fragments — notable neighbours include STARLINK-1036, STARLINK-1043, STARLINK-1048. This makes it one of the more crowded altitude bands, containing roughly 6.4% of all active satellites. With an inclination of 43.0°, USA 485 passes over latitudes between 43.0°N and 43.0°S, covering the tropical and temperate zones where most of the world’s population resides. Low-to-mid inclination orbits are efficient to reach from equatorial and mid-latitude launch sites. United States operates approximately 12,360 active satellites in total, of which 1,049 share a similar altitude band with USA 485.