GAPS - User Guide
> Fine alignment ends automatically when the heading covariance is below 0.1 °.
Figure 72 - Illustration of optimal trajectory for fine alignment
The inertial sensor status light turns green at the end of the coarse alignment. You can then
start to operate with GAPS. The accuracy of the INS is optimal at the end of the fine
alignment. At the end of the fine alignment, the message “fine alignment” disappears from the
inertial sensor tool box.
142 MU-GAPS-AN-005-H - November 2019
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