TJM obs of 2003 Sep 07 UTC

From: Ted Molczan (molczan@rogers.com)
Date: Sun Sep 07 2003 - 05:42:53 EDT

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    25744 99 028A   2701 G 20030907083847810 17 25 0147667-103843 28 S
    25744 99 028A   2701 G 20030907083943210 17 25 0156707-064543 28 S
    
    Site 2701: 43.68764 N, 79.39243 W, 230 m
    
    I observed during a period of low phase-angle, on 2003 Sep 07 from 08:34:15 UTC
    through 08:41 UTC, during which I saw neither the flickering observed by Greg
    Roberts on 2003 Sep 02 UTC, nor the combined long-period variation and
    flickering observed by Peter Wakelin on 2003 Sep 05 UTC.
    
    When observing at similarly low phase angles in the past, I have found the
    long-period variation either absent or of small amplitude, which may indicate
    that the spin axis of the rotation that gives rise to the long=period variation
    is aimed in the direction of the sun.
    
    Peter's recent observations were at somewhat greater phase angles than mine,
    which may have made the long period variations more pronounced. Greg's
    observations were at even greater phase angle, but he saw only the flickering. 
    
    There are too few reports of the flickering to judge whether or not they are
    affected by phase angle.
    
    Ted Molczan
    
    
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