ARIANE 5 R/B

ARIANE 5 R/B is a spent rocket body associated with France, launched on 1999-12-10 from Guiana Space Centre, Kourou on the XMM launch. With over 27 years in orbit, it has far exceeded many satellites’ design lifetimes. It orbits in Highly Elliptical Orbit (HEO) at altitudes between 18,517 km and 94,116 km with an inclination of 71.4°. It travels at approximately 9,078 km/h (2.52 km/s), completing one full orbit every 43.4 hours — that’s roughly 0.55 orbits per day. Its orbital eccentricity of 0.6030 gives it a noticeably elliptical path, with significant altitude variation between perigee and apogee. At geostationary altitude, there is no meaningful atmospheric drag — this object will remain in orbit indefinitely unless actively deorbited. Spent rocket bodies like ARIANE 5 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 5 R/B follows a Highly Elliptical Orbit, sweeping between 18,517 km (perigee) and 94,116 km (apogee). It spends most of its 43.4 hours orbital period near apogee, effectively loitering over a region of interest before rapidly sweeping through perigee — a profile used for high-latitude communications (Molniya orbits), early-warning systems and magnetospheric science. With an inclination of 71.4°, ARIANE 5 R/B passes over latitudes between 71.4°N and 71.4°S, covering most populated land masses in both hemispheres. This mid-inclination band balances global coverage with efficient launch energy requirements. France operates approximately 115 active satellites in total.