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    Pre-computed Altitudes and Azimuths
    From: Greg Rudzinski
    Date: 2009 Dec 19, 10:55 -0800

    Recommended for Navlisters - Pre-computation of altitudes and azimuths before 
    departing on your next sail or flight. This old aviation technique delivers 
    lightning fast intercepts with only the task of reading the sextant angle at 
    the designated time. The attached set of pre-computations and observations 
    were done this morning as a trial in my boat slip at Channel Islands Harbor. 
    A Palm PDA was used to pre-calculate altitude and azimuth every 6 minutes for 
    a 2 hour period (this took about 20 minutes to complete). Observations were 
    aided by an alarm on my Palm Centro smart phone which was set to 6 minute 
    intervals. When the alarm sounds then an audio mark is heard to accurately 
    time the shot on the whole minute. The process was performed without error 
    the first time through so I give pre-computation a big double thumbs up for 
    precise fast error free reliability. 
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