NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Greg Rudzinski
Date: 2010 Jun 6, 08:35 -0700
Jeremy,
One more possibility for an amplitude/azimuth discrepancy is the assumed position used for reduction. A GPS position at the moment of observation is best of coarse. The next time you can perform an amplitude try working it for a set of assumed positions then do the same observation as if it were an azimuth and hopefully the same results will be derived by computer, NC-2, 229 interpolation,and Trig calculator. Shifting the assumed position to a convenient Latitude and Longitude will noticeably shift the calculated azimuth by several tenths.
GRudzinski
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