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Articles

Number 14 (2015)

A case of applied geodesy - Accuracy tests of the OMEGA differential system

Submitted
February 19, 2016
Published
2015-11-30

Abstract

In the late 1980s, significant differences in positions derived from the OMEGA station at Porto Santo were reported by navigators. The Portuguese Division of Material and Methods of Navigation of the Hydrographic Institute were concerned with the quality of the corrections broadcast by the OMEGA differential stations in the Portuguese territory and undertook a detailed investigation into the broadcast information. The OMEGA stations were located in Lagos (mainland), Porto Santo (Madeira Islands) and Horta (Azores Islands). To determine the issues, a series of observations were undertaken for each station. Using specialised software written by the author to analyse the results, an error was identified in the Porto Santo station and consequently rectified.