USA 160 movement

From: Jari (
Date: Thu Jul 25 2002 - 01:55:37 EDT

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    With a sun angle of less than 10 deg i used my 10x50s to obs the USA 160 duo
    as went by. When USA 160 (C) #26907 01040C passed by Alioth in Ursa Major it
    brightened briefly, when USA 160 #26905 01040A followed along it too
    brightend as well near Alioth. As i continued to follow them at times they
    were barely visible in the twilight and at other times easily seen. I didn't
    get a timing but it seemed to be a set period rather than just random
    'tumble' time. The sky was clear, no clouds in the area so i'm wondering if
    the USA 160 pair either have multi-faceted panels or if they maintain a
    parallel to the earth surface flight path? I've seen them numberous times
    but this is the first time i've seen them behave this way.
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