A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Peter Hakel
Date: 2016 Dec 13, 17:20 -0800
Good catch - that was an oversight on my part. The limb selection in cell I31 allows three options (Upper/Lower/Center), and I forgot to change it from the default - the result changes by ~ 0.1’. For the 4-LOP fix I used my original spreadsheets for everything, and there the SD correction for Venus was indeed 0 (see attached), since I observed it the way you said.
For details about the integrated spreadsheet, see this blog post: