NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Lunars-lite
From: Peter Monta
Date: 2018 Jan 29, 15:59 -0800
From: Peter Monta
Date: 2018 Jan 29, 15:59 -0800
That's interesting. If both shadow-ingress and shadow-egress observations are available, then taking the mean should remove this bias.
On second thought, these two shadows are coming from opposite sides of the Earth. What's the mechanism behind the shadow-variation? If it becomes uncorrelated over times of a few hours, or across every 1000-km patch of troposphere, then there's not as much benefit.
Cheers,
Peter