Data

DARPA network shields against space junk

Shutterstock image. Copyright: Johan Swanepoel

The Defense Advanced Research Projects Agency is a step closer to being the traffic cop on the final frontier.

The agency is developing a network to gather data on spacecraft, debris and other potentially hazardous stuff whizzing around in Earth's orbit in hopes of preventing potentially catastrophic collisions.

DARPA announced on June 29 that it had completed a critical part of its OrbitOutlook program by integrating live data feeds from seven providers of space situational awareness (SSA) data from more than 100 sensors worldwide. That accomplishment makes OrbitOutlook the largest and most diverse SSA network ever assembled, DARPA said.

OrbitOutlook tracks hundreds of thousands of objects traveling as fast as 17,000 miles an hour. Some are as tiny as a fleck of paint, and others, such as spent rocket staging, can be as big as a bus.

Knowing the location of all that material is crucial to avoiding collisions with the 1,200 commercial and military satellites operating around the Earth. Orbital collisions, even among space junk, can spawn chain-reaction pileups that block satellite lanes for hundreds of years.

DARPA said it will soon begin testing scalable, automated algorithms on the integrated data feed to identify and extract relevant data that experts could use to make decisions about how to handle potential problems. The algorithms are part of an OrbitOutlook archive that stores observation data from sensors and the processed data the algorithms produce.

DARPA officials will test algorithms designed to validate the quality of diverse datasets from non-certified SSA sensors in real time to see if they contain reliable, usable data. The archive and the algorithms are kept in a sophisticated data center based on one developed by DARPA's Insight program for intelligence, surveillance and reconnaissance data.

The agency said testing on real data is scheduled to begin this fall. Officials plan to share the algorithms and the data archive with the space debris-tracking community through its Open Catalog.

About the Author

Mark Rockwell is a senior staff writer at FCW, whose beat focuses on acquisition, the Department of Homeland Security and the Department of Energy.

Before joining FCW, Rockwell was Washington correspondent for Government Security News, where he covered all aspects of homeland security from IT to detection dogs and border security. Over the last 25 years in Washington as a reporter, editor and correspondent, he has covered an increasingly wide array of high-tech issues for publications like Communications Week, Internet Week, Fiber Optics News, tele.com magazine and Wireless Week.

Rockwell received a Jesse H. Neal Award for his work covering telecommunications issues, and is a graduate of James Madison University.

Click here for previous articles by Rockwell. Contact him at mrockwell@fcw.com or follow him on Twitter at @MRockwell4.


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