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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Star Fix statistics
From: Jeremy C
Date: 2009 Sep 23, 18:40 EDT
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From: Jeremy C
Date: 2009 Sep 23, 18:40 EDT
I shot 70 star fixes on my trip from Japan to the USA and here are a few
interesting statistics.
1) average fix error from GPS: 0.566 nm (low of 0.0 and high of 2.7
nm error)
2) 88.6% of the fixes were under 1.0 nm fix error.
3) 60.0% of the fixes were under 0.5 nm fix error
4) two fixes had errors under 0.05 nm (under 100 meters).
My next project is to determine the average intercept based on the GPS fix
as the DR but that is over 700 data points so might be awhile.
Jeremy
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