Bob Crantz wrote:


Why would this be? I don't see why the location algorithym should become
invalid at these locations.

Ooops!

It's the singularity for inertial navigational platforms, not GPS. The GPS
reference are satellites. The inertial system includes the rotation of the
earth. At the pole, there is no rotation.

I almost burned in hell for that one!

We'll forgive you this time, don't let it happen again; say two Our
Fathers and a Hail Mary.

Cheers
Marty