BOD Definition

General

Question

 What is BOD?   It is shown in the data box but I am not sure what it represents? ​

Solution

​BOD is NMEA (National Marine Electronics Association) abbreviation for Bearing, Origin to Destination. 
NMEA defines BOD as "Bearing angle of the line, calculated at the origin waypoint, extending to the destination waypoint from the origin waypoint for the active navigation leg of the journey".