Viewing System Errors

The Bundle Adjustment window displays both the Original shot er- rors and the adjusted shot errors. This gives you a measure of how much the bundle adjustment has improved the overall system error.

A maximum, average, and RMS error is displayed. These values char- acterize the combined pointing errors for each target that is included in the Bundle Adjustment. Each target has a pointing error, given in degrees. This is the amount that the measurements miss the best-fit computed target. The bundle adjustment attempts to minimize the combined pointing error by simultaneously adjusting both the posi- tion and orientation of the instruments.

Therefore, if there are 30 points in the bundle, the maximum error is the largest pointing error for all of the points, the average is the aver- age of that set, and the RMS is the root-mean-square of the set.

If you wish to see the errors itemized by target, click the Show Details button, and you will see a list of the targets and their errors. You may wish to select this option before beginning the bundle to inspect the list.