reentry
Mir controlled deorbit (March 2001)
March 23, 2001
Russia deliberately deorbited the 120-tonne Mir space station into the South Pacific — the largest controlled reentry ever, and a model of responsible disposal.
On 23 March 2001, Russia carried out a controlled deorbit of the Mir space station, guiding the roughly 120-tonne complex to a planned re-entry over the remote South Pacific near the "spacecraft cemetery" southeast of New Zealand. After 15 years in orbit, Mir came down deliberately, with surviving fragments falling into open ocean far from land.
Controlled, by design Unlike the uncontrolled re-entries of Skylab or Tiangong-1, Mir's descent was commanded: a Progress cargo ship docked to the station fired its engines to lower the orbit and steer the break-up footprint into the empty Pacific. It remains the largest controlled re-entry ever performed.
Why it's the benchmark Mir is the standing example of how a very large structure *should* be retired — with enough propulsion and planning to choose where it comes down. The same approach underpins today's plans to eventually deorbit the International Space Station.
Sources & further reading
Professional tracking & space domain awareness
- LeoLabs — commercial radar tracking & orbital intelligence
- Space-Track.org — US Space Force public catalogue
- CelesTrak — orbital element sets & analysis
LowEarth shows the public catalogue for curiosity and education. For operational tracking, conjunction screening, or threat assessment, the organisations above provide authoritative, higher-precision data.