At LeoLabs, our mission is to secure safe and sustainable operations in space. site 
LeoLabs was founded in 2016 as a venture-funded spinout of Silicon Valley research pioneer, SRI International, by scientists and space industry veterans committed to securing Low Earth Orbit.
With billions invested to deliver revolutionary new services from imaging to broadband to commercial human spaceflight, the growth is international in scope, as commercial space ventures and newly-formed space agencies from every corner of the globe compete for their place in the emerging LEO economy.
The space surrounding the earth is a floating junkyard of stuff moving at high speeds with colossal destructive energy. With thousands of satellites, teams of astronauts, and tons of debris, there are over 14,000 orbital objects bigger than a softball and more than 250,000 larger than a marble. As the LEO ecosystem around our planet gets more congested, the risk of collisions rises, and the need to map the orbits of spacecraft, satellites and space debris grows with every launch.
LeoLabs is built on 30+ years of R&D in radar systems and satellite tracking algorithms. The team is rapidly expanding its global radar network and data services platform to help satellite operators deploy their services safely and to empower governmental space agencies with detailed visibility into the LEO ecosystem.
An essential requirement for Space Situational Awareness is the characterization of Resident Space Objects. An essential characteristic is attitude stability. Specifically, it is of taxonomical interest
whether an an object has a controlled, stable attitude or a tumbling or irregular attitude. pdf
Oct 16, 2020. Our latest data confirms Cosmos 2004 is still intact. Our final risk assessment showed a computed miss distance of 11 meters.
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In 1991, Kessler published "Collisional cascading: The limits of population growth in low Earth orbit" with the best data then available. wikipdedia
The Advanced Maui Optical and Space Surveillance Technologies (AMOS) Conference is the premier technical conference in the nation devoted to space situational awareness/space domain awareness. site
A Japanese company becomes the first to approach a piece of space junk in low-Earth orbit. post