NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Plotting vs calculating Position
From: Ron Jones
Date: 2015 Jul 29, 11:33 -0700
From: Ron Jones
Date: 2015 Jul 29, 11:33 -0700
When usng the Universal Plotting Sheet (UPS) to determing position from the intercepts & azimuths of 2 or 3 body celestial observations, the width of the lines plotted on the UPS representing the LOPs can approach or exceed 1 nautical mile. The method described in Paragraph 11 "Positin from intercept and azimuth by calculation" on page 282 of the Nautical Almanac can be used to calculate an accurate position. This method can easily be programmed into a TI Voyage 200 calculator or implemented as an Excel spread sheet (see attached Excel worksheet)
File:
