Re: IMP 8

From: Bjoern Gimle (
Date: Thu Jun 07 2001 - 08:57:07 PDT

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    > At 22:20 7/06/01 , Allen Thomson wrote:
    > >Since the XYZ is given every hour and the motion is slow, would simple
    > >differencing
    > >of successive coordinates be a reasonable way to get the dots?  Also,
    This would give the speed near the midpoint, so using points 1 and 3 to get
    the "dot" for point 2 would be more accurate. (Using that linear estimate
    and fitting a quadratic to 5-7 residuals might be overkill, but could
    eliminate noise from low-precision positions - no decimals on km?)
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