NOAA 16 DEB

NOAA 16 DEB is a tracked piece of space debris attributed to United States, launched on 2000-09-21 from Vandenberg SFB, California. With over 26 years in orbit, it has far exceeded many satellites’ design lifetimes. It orbits in Low Earth Orbit (LEO) at altitudes between 699 km and 734 km with an inclination of 99.0°. It travels at approximately 26,998 km/h (7.50 km/s), completing one full orbit every 99 minutes — that’s roughly 14.53 orbits per day. Its near-polar, sun-synchronous orbit means it passes over any given point on Earth at approximately the same local solar time, ideal for consistent Earth observation lighting conditions. It is part of the Weather constellation group. At its current altitude, the estimated orbital lifetime before atmospheric re-entry is ~25–100 years. As orbital debris, NOAA 16 DEB poses a potential collision risk to operational satellites in nearby orbits and is continuously monitored by the U.S. Space Surveillance Network and other tracking systems.

NOAA 16 DEB orbits at an average altitude of 717 km in a sun-synchronous orbit (SSO), a specialised subset of LEO where the orbital plane precesses to maintain a constant angle relative to the Sun. This provides consistent lighting conditions on every pass — essential for Earth observation, weather monitoring and environmental science. Within ±50 km of NOAA 16 DEB’s average altitude, there are currently 278 active payloads and 1,656 tracked debris or rocket body fragments — notable neighbours include TERRA, AQUA, LANDSAT 9. With an inclination of 99.0°, NOAA 16 DEB passes over latitudes between 99.0°N and 99.0°S, providing near-global coverage including the polar regions. Polar and near-polar orbits are used for reconnaissance, weather monitoring and Earth-observation missions that need to image every part of the planet. United States operates approximately 12,339 active satellites in total, of which 74 share a similar altitude band with NOAA 16 DEB.