Deterioration of the space environment due to the increase and fragmentation of space debris
First written in FY2025-H1. . Latest entry: FY2026.
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- FY2026Updated and increased debris and satellite countsAnnual report
「The number of observable debris objects measuring 10 cm or more has reached approximately 54,000, and the number rises to approximately 1.2 million when objects measuring several centimeters are included. The number of operational artificial satellites has also increased, reaching approximately 15,800.」
External data as of June 2026 indicated approximately 54,000 observable debris objects measuring at least 10 cm, approximately 1.2 million including objects several centimeters in size, and approximately 15,800 operational satellites. - FY2025-H1First statedAnnual report
「The number continues to increase every year, and the number of debris objects measuring 10 cm or more is estimated to exceed 40,500 (published by the European Space Agency (ESA) in June 2024). In addition, at least 5 fragmentation events were observed in orbit during the six-month consolidated accounting period under review, and the severity of the problem is increasing.」
The Group cites as structural external facts that more than 40,500 debris objects measure at least 10 cm and that at least 5 fragmentation events were observed during the six-month consolidated accounting period.