TITAN 3C TRANSTAGE R/B

TITAN 3C TRANSTAGE R/B is a spent rocket body associated with United States, launched on 1970-04-08 from Cape Canaveral, Florida on the Vela 6A launch. After more than 56 years in orbit, it is one of the longest-surviving objects in the space catalogue. It orbits in Highly Elliptical Orbit (HEO) at altitudes between 16,000 km and 116,654 km with an inclination of 45.5°. It travels at approximately 8,430 km/h (2.34 km/s), completing one full orbit every 54.2 hours — that’s roughly 0.44 orbits per day. Its orbital eccentricity of 0.6923 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 TITAN 3C TRANSTAGE 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.

TITAN 3C TRANSTAGE R/B follows a Highly Elliptical Orbit, sweeping between 16,000 km (perigee) and 116,654 km (apogee). It spends most of its 54.2 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 45.5°, TITAN 3C TRANSTAGE R/B passes over latitudes between 45.5°N and 45.5°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 12,413 active satellites in total.