Starpath Celestial LOP Plot Checker

A key step in all of celestial navigation is the plotting of the LOPs we get from the sights. We have practice with this in the textbook and course materials, but here is a way to check your work numerically. It can be used for static sights or for moving sights as in a running fix. You do not need to be enrolled in the Celestial Nav Course to use this tool.

Sample

LOP1
a-Lat = 51° N, a-Lon = 31° 12.0' W, a = 25.5' Toward Zn = 345°

LOP2
a-Lat = 51° N, a-Lon = 30° 37.0' W, a = 25.0' Away from Zn = 033°

What is your position? Answer = 51° 14.2' N, 32° 24.6' W

You can also do a running fix with this new one by entering sight times, course, and speed. For the same day, you do not need to change the date settings.

This calculator is now on our www.starpath.com/calc page of calculators,

or go to it directly from

Starpath Celestial LOP Plot Checker