Accession Number : ADA131089

Title :   Omega Data Bank Report Winter 1980 through Spring 1981.

Descriptive Note : Data rept.,


Personal Author(s) : Turnock,Theodore

PDF Url : ADA131089

Report Date : Jun 1983

Pagination or Media Count : 33

Abstract : The International Bank for Airborne-Omega Data continued operation at the Federal Aviation Administration Technical Center. This report, issued by the Data Bank, is based upon 355 flight data hours covering flights in the North and South Atlantic, parts of the Caribbean, Central and South America, Canada, and the North Pacific. These data were collected during the winter of 1980 through spring 1981. There were three major contributors to the Omega Data Bank during this period operating the same equipment types. Operationally usable signals corresponded quite well with Omega signal coverage prediction diagrams published by Omega Navigation System Operational Detail. Exceptions were noted from Ellesmore Island over the Artic Ocean for the Liberia, Hawaii, North DAkota, and Japan signals for the specific months and times of the data flights. During the months when the above flights were made, there were 114 solar flares (of magnitude M2 or greater), 10 were coincident with recored flight data. Several large magnetic solar flares peaked during aircraft data recording; however, no effects were discernible on observed signal-to-noise ratios values. This report is the third in a series of periodic technical reports which provide a standardized data presentation of Omega signal coverage, as measured by production airborne-Omega navigatio systems over routes of commercial interest under various signal environments (e.g., propagation problem regions, high solar activity). If an independent onboard position reference system was available and recorded, then Omega position differences are also presented.

Descriptors :   *Data bases, *Omega navigation, *Flight, Data acquisition, Data processing, Optimization, Airborne, Interfaces, Solar Flares, Passenger aircraft, Oceans, Maps, Charts, Signals, Cassettes, Recording systems

Subject Categories : Information Science

Distribution Statement : APPROVED FOR PUBLIC RELEASE