sound and video of Earth Grazer

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http://spaceweather.com/images2013/09au ... 4?PHPSESSI
Quote (from spaceweatherdotcom)
"Play the movie again and listen to the soundtrack. The eerie-sounding echoes are caused by terrestrial TV signals bouncing off the meteor's ionized trail. "In the radio meteor community, Perseids are known as 'blue whizzers' due to their fast speed and zinging radio reflections," notes Ashcraft.

More Earthgrazers are in the offing. Every night, Earth is plunging deeper into the debris stream of comet 109P/Swift-Tuttle, source of the annual Perseid meteor shower. The best time to look for earthgrazers is between 9:30 and 10:30 pm local time as the shower's radiant climbs over the northeastern horizon. That's when the geometry favors meteoroids skimming across the top of the atmosphere like a stone skipping across the surface of a pond. Earthgrazers are slow and colorful. (Regular non-Earthgrazing Perseids, on the other hand, are best seen after midnight.)

Forecasters expect the 2013 Perseid meteor shower to peak on the nights of August 12-13 with as many as ~100 meteors per hour."
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