Tilt-Table Alignment for Inertial-Platform Maintenance without a Surveyed Site

A method for aligning the rotary tilt table for an inertial-platform maintenance facility without surveying the site is analyzed and evaluated. The method utilizes multiple measurements of the tilt-table azimuth alignment error with different inertial platforms to determine a best estimate of the alignment error. Error analysis indicates that useful facility performance can be obtained with only a small number of measurements. The tilt-tablealignment accuracy can be improved as more measurements of the alignment error are made during normal facility operation.