Don’t Touch Their Junk: USAF’s SSA Tracking Space Debris


Kessler Syndrome

September 30/15: Lockheed Martin’s Space Fence system has passed an Air Force Critical Design Review, according to a company press release external link. Passing the CDR now means that the full-scale Space Fence System radar and facilities can be constructed on Kwajalein Atoll, part of the Marshall Islands. Designed to serve as a second-generation space surveillance radar system, the Space Fence will allow the Air Force to track satellites and space debris.


For more on this and other stories, please consider purchasing a membership.
If you are already a subscriber, login to your account.
Space Fence concept(click to view full) Space is big. Objects in space are very dangerous to each other. Countries that intend to launch objects into space need to know what’s out there, in order to avoid disasters like the 2009 collision of 2 orbital satellites. All they need to do is track many thousands of man-made space objects, traveling at about 9 times the speed of a bullet, and residing in a search area that’s 220,000 times the volume of Earth’s oceans. The US Air Force Materiel Command’s Electronic Systems Center at Hanscom Air Force Base in Massachusetts leads the USA’s Space Fence project. It’s intended to improve space situational awareness by tracking more and smaller objects, while replacing legacy systems in the Space Surveillance Network (SSN) as they retire. With a total anticipated value of around $6.1 billion over its lifetime, Space Fence will deliver a system of 2-3 geographically dispersed ground-based radars to provide timely assessment of space objects, events, and debris. International cooperation will supplement it, as part of overall Space Situational Awareness efforts. Failure is not an option. Or is it? Space Fence Background LEO clutter concept(click to view full) The current space fence was operational […]

One Source: Hundreds of programs; Thousands of links, photos, and analyses

DII brings a complete collection of articles with original reporting and research, and expert analyses of events to your desktop – no need for multiple modules, or complex subscriptions. All supporting documents, links, & appendices accompany each article.


  • Save time
  • Eliminate your blind spots
  • Get the big picture, quickly
  • Keep up with the important facts
  • Stay on top of your projects or your competitors


  • Coverage of procurement and doctrine issues
  • Timeline of past and future program events
  • Comprehensive links to other useful resources