Spherical System

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Spherical System

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A trajectory measuring system, whose locus of the measured range is a sphere with the ground equipment at the center. </dd>
A unique point in space is determined by the intersection of three or more spheres. The term spherical system has been applied to systems using three or more slant ranges to determine space position. [[/a>|/a> ]]

References

This article is based on NASA's Dictionary of Technical Terms for Aerospace Use