TechnicalLEO
Low Earth Orbit
Orbital regime from approximately 160 km to 2,000 km altitude, the most congested region of space and primary focus of debris mitigation efforts.
Low Earth Orbit (LEO) is the most utilized and congested orbital regime, hosting the majority of operational satellites, space stations, and debris.
Orbital Characteristics
- Altitude: 160-2,000 km
- Period: 88-127 minutes
- Typical lifetimes: Months to decades (depending on altitude)
Applications
- Earth observation
- Communications constellations
- Scientific research
- Human spaceflight
- Technology demonstration
Debris Environment LEO contains the highest concentration of:
- Tracked objects (~70% of catalog)
- Small untracked debris
- Collision risk
EU Space Act Requirements LEO operators must:
- Deorbit within 5 years post-mission (stricter than IADC 25-year)
- Maintain collision avoidance capability
- Submit debris mitigation plans
- Participate in SST data sharing
Mega-Constellations LEO is seeing unprecedented growth with constellations like:
- Starlink (SpaceX)
- OneWeb
- Amazon Kuiper
- EU IRIS²
This drives urgent need for updated debris mitigation requirements.