CYGFM04

CYGFM04 is an active satellite operated by University of Michigan/NASA Earth Science Technology Office (United States), launched on 2016-12-15 from Cape Canaveral Space Force Station, United States on the CYGNSS launch. After 10 years in orbit, it continues to be tracked by global surveillance networks. It orbits in Low Earth Orbit (LEO) at altitudes between 366 km and 371 km with an inclination of 34.9°. It travels at approximately 27,686 km/h (7.69 km/s), completing one full orbit every 92 minutes — that’s roughly 15.67 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 CYGFM04 in real time using the latest two-line element set (TLE) data, providing live position, altitude, speed and orbital path updated continuously.

CYGFM04 orbits at an average altitude of 369 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 CYGFM04’s average altitude, there are currently 1,309 active payloads and 53 tracked debris or rocket body fragments — notable neighbours include STARLINK-1008, STARLINK-1012, STARLINK-1020. This makes it one of the more crowded altitude bands, containing roughly 7% of all active satellites. With an inclination of 34.9°, CYGFM04 passes over latitudes between 34.9°N and 34.9°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 13,204 active satellites in total, of which 1,193 share a similar altitude band with CYGFM04.