PSN-L Email List Message

Subject: Welcome home Discovery
From: Brett Nordgren brett3nt@.............
Date: Fri, 11 Sep 2009 21:46:41 -0400

Hi All,

On its approach to Edwards AFB in California today, the space shuttle 
Discovery apparently came right over our seismo site.  Dave reports that 
its sonic boom shook the whole house (though the really solid pier he made 
possibly shook less).

Check the 'gif_images.htm' file below and look at the low-gain, 10Hz 
channel heliplot.  At  12 Sept, 2009  00:47:47 UTC Discovery's sonic boom 
shows up quite clearly.   It's even more impressive when we look at it on 
the high gain channel with the low pass filter set up to10Hz.


Watch our wiggles

or watch some very very good wiggles


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