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position circleSee circle of position.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006
position circle[pə′zish·ən ‚sər·kəl]
A circle covering all possible points within which a search objective can be located.
The line of position produced by a distance measurement such as those produced by a DME (distance-measuring equipment).
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.