A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Michael Bradley
Date: 2019 May 2, 15:39 -0700
For your SNO-T:
1 comment - the SNO-T specification in the hand book image attached to post 104361 by Gary La Pook mentions total errors up to 30" - that could be the main part of your 0.7'
1 suggestion - eliminate the shades from the issue by taking equivalent star sights on Procyon, Pollux, or Regulus at dusk - not forgetting to check the I.E. using the chosen star against itself.