Europe Sets Sights On Asteroid Tracking Radars

Real asteroid detection systems employ infrared space-based telescopes, since asteroids of all types glow brightly in the infrared.

But where a radar would come in handy is accurately determining the orbital elements of an asteroid once detected. With infrared telescopes all you get with a detection is the brightness and direction. Successive observations as the asteroid and satellite move over the course of months is required to develop enough data for decent orbit, and if it is one that will come close to

Source: http://rss.slashdot.org/~r/Slashdot/slashdotScience/~3/WIKurY_O-7g/europe-sets-sights-on-asteroid-tracking-radars

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