Value chain · CLM-0753
In plain terms
ESA's 2026 report says the world is not clearing satellites out of orbit well enough, that even the usual 90 per cent success target would not reduce the amount of debris on its own, and that the figure needs to rise to nearly 100 per cent.
The claim as recorded
ESA's Annual Space Environment Report 2026 states that current levels of compliance with space debris mitigation guidelines at large are insufficient for achieving a sustainable space environment long-term, that there is a growing consensus that stricter mitigation practices need to be implemented globally, and that while a common target for successful post-mission disposal is 90 per cent, that practice will not by itself reduce the amount of debris in orbit and will need to increase to near 100 per cent in the near future; it also records that ESA's own 2023 standard cut the post-mission lifetime limit for the LEO protected region from 25 years to 5 and requires a cumulative collision probability below 10^-3 from end of life until re-entry against objects larger than 1 cm, while noting that this is binding only for ESA projects.
Scope and limits
The 5-year lifetime limit and the 10^-3 collision-probability criterion are stated for the LEO protected region only, and this record does not apply them to GEO, which has no natural sink mechanism (CLM-0752). They bind ESA projects only, by the source's own statement. The 90 per cent figure is ESA's description of a common target, not a measured global compliance rate. The GEO compliance percentages on the same page are not claimed here.
What it assumes
No assumptions are recorded against this claim.
Where it comes from
p.7, verbatim: "Despite this, current levels of compliance to space debris mitigation guidelines at large are insufficient for achieving a sustainable space environment long-term, and there is a growing consensus that stricter mitigation practices need to be implemented globally." Same page, verbatim: "While a common target for successful post-mission disposal is 90%, this practice will not by itself reduce the amount of debris in orbit, and will need to increase to near 100% in the near future." Same page, verbatim: "the Standard requires that the orbit clearance of a spacecraft or launch vehicle orbital element from the LEO protected region shall satisfy both following conditions: first, that the orbit lifetime is less than 5 years; and secondly, that the cumulative collision probability from end of life until re-entry with space objects larger than 1 cm is below" 10^-3 and "While this is only binding for ESA projects".
Basis: post-mission disposal success rate, per cent
Related records
- Answers question
- QST-011 not published in this release
Cite this
energyaperture.com/c/clm-0753
CLM-0753, Energy Aperture, as of 2026-05-01.
Connected records
Other published records linked to this one. A list, not a judgement.
- Also from SRC-226
- CLM-0750The 2020 edition of the international debris guidelines says a retiring geostationary satellite should climb at least 235 km above its...CLM-0751Working the international disposal formula through by hand shows that for a very large and very light satellite the extra height it must...CLM-0752ESA's 2026 report says that nothing naturally removes objects from geostationary orbit the way the atmosphere slowly clears low orbit, so a...CLM-0754ESA's 2026 report projects that collisions between existing pieces of debris will keep making more debris in low Earth orbit even if...CLM-0756The international space debris guidelines are advice, not law: ESA's own report says they are a starting point for national rules and...CLM-1183ESA's 2026 report counts about 960 catalogued objects in geostationary orbit at the end of 2025, about 800 of them satellites, but nearly...CLM-1188Over the past ten years, almost every satellite retiring from the geostationary belt has tried to move itself out of the way as the debris...