NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Greg Rudzinski
Date: 2014 Apr 28, 14:16 -0700
Alan,
You said:
" my "fix" is 31+ miles from GPS coordinates, almost off the sheet, which covers 1 degree x one degree. "
If you had taken the wrong limb reading (upper limb vs. lower limb or vice versa)then your artificial horizon observation would be too big or too small by 64'. Dividing by 2 then results in a Hs discrepancy of 32'(about the error you have noticed). The next time you do a set of Sun observations with the AH take upper limb, lower limb, and overlapping observations. This should prevent mixing up the limbs.
Greg Rudzinski
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