ARIANE 44L R/B

ARIANE 44L R/B is a spent rocket body associated with France, launched on 2001-02-07 from Guiana Space Centre, French Guiana on the SICRAL 1A launch. With over 25 years in orbit, it has far exceeded many satellites’ design lifetimes. It orbits in Medium Earth Orbit (MEO) at altitudes between 326 km and 29,890 km with an inclination of 7.4°. It travels at approximately 15,508 km/h (4.31 km/s), completing one full orbit every 8 hours 42 minutes — that’s roughly 2.76 orbits per day. Its orbital eccentricity of 0.6882 gives it a noticeably elliptical path, with significant altitude variation between perigee and apogee. Spent rocket bodies like ARIANE 44L R/B are among the largest pieces of uncontrolled space debris and are priority targets for collision avoidance manoeuvres and future active debris removal efforts.

ARIANE 44L R/B orbits at an average altitude of 15,108 km in Medium Earth Orbit, the region between LEO and GEO (2,000–35,786 km). MEO’s higher altitude gives each satellite a much larger ground footprint than LEO, meaning fewer spacecraft are needed for global coverage — but signal latency is higher and radiation from the Van Allen belts is a significant design constraint. Within ±50 km of ARIANE 44L R/B’s average altitude, there are currently 0 active payloads and 12 tracked debris or rocket body fragments. This is a relatively sparse altitude band, containing less than 1% of all active satellites. With an inclination of 7.4°, ARIANE 44L R/B passes over latitudes between 7.4°N and 7.4°S, concentrating coverage over equatorial and near-equatorial regions. Low-inclination orbits maximise revisit rates over specific tropical zones. France operates approximately 120 active satellites in total.