A Co-operative Anomaly Resolution on PRN-19

Clyde Edgar, Frank Czopek, Brian Barker

Abstract:	In March of 1993 there was a considerable amount of public attention focused on an unusual anomaly associated with GPS-PRN-19. Non differential GPS users did not notice a bias introduced by PRN-19 as it was within the specified SPS accuracy. However, when PRN-19 was included in a L1 C/A differential equipment solution it would offset the position from 3 to 8 meters depending on different types of user equipment. The intent of this paper is to describe that anomaly in general terms and focus on the process and organizations involved in the anomaly resolution used at that time. Further, the intent is to recognize the contributions of the civilian organizations and credit those civil individuals involved in the resolution of this anomaly.
Published in:	Proceedings of the 12th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1999) September 14 - 17, 1999 Nashville, TN
Pages:	2269 - 2268
Cite this article:	Edgar, Clyde, Czopek, Frank, Barker, Brian, "A Co-operative Anomaly Resolution on PRN-19," Proceedings of the 12th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1999), Nashville, TN, September 1999, pp. 2269-2268.
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