NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Greg Rudzinski
Date: 2013 Nov 12, 14:19 -0800
I thought it would be interesting to explore the ex-meridian/time sight fix obtained from a single observation (similar to the timed LAN and ex-meridian/LOP). It turns out that the time sight observed near LAN is very sensitive to the assumed latitude. Attached is a plot that shows two time sights. The first using the GPS latitude and the second using the ex-meridian latitude. A 0.6' difference in the assumed latitude results in a 3' shift in longitude.
Greg Rudzinski
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