Re: Apple: mean motion anomaly?

From: Mike McCants (mmccants@io.com)
Date: Thu Feb 26 2004 - 11:07:24 EST

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APPLE
1 12545U 81057B   04029.88632208 -.00000251  00000-0  00000+0 0  4230
2 12545  13.7678  14.8018 0024855   8.3178 351.7463  1.00029526 40619
..
APPLE
1 12545U 81057B   04052.87959132 -.00000159  00000-0  00000+0 0  4274
2 12545  13.7786  14.6539 0026264   9.5158 350.4876  1.00022926 40848

Delta mean motion over 23 days = -0.000066.

Average "drag" = -0.000066 / (2 * 23) = -0.00000140

This seems to be normal for the effect of the longitude-dependent
terms in the Earth's gravitational field.  This effect will reverse
sign in another week as it moves west.

Mike McCants

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