What must the observer specify in the target location portion of an Excalibur call for fire?

In the context of an Excalibur call for fire, the observer must specify the Target Location Error (TLE) in the target location portion. TLE refers to the accuracy of the target location that the observer provides. This is crucial for Excalibur, which is a precision-guided artillery projectile, as it relies on precise targeting information to effectively engage targets while minimizing collateral damage.

Target Location Error provides a measure of how far off the actual target location might be from the coordinates given by the observer. By specifying this information, the observer ensures that the artillery units can apply the appropriate measures and corrections to deliver accurate fire. This requirement is significant because it directly influences the effectiveness and success of the mission, ensuring that the artillery rounds strike as close to the intended target as possible.