DETERMINATION OF THE EARTH'S RADIUS USING PROJECTION METHOD FORMULAS,
Abstract
The paper presents a summary of methods commonly used to determine the earth's size and shape and a brief review of the projection method. To illustrate the projection method, a numerical example is given using 12 astrogeodetic stations on the North American Datum 1927, Clarke 1866 Ellipsoid. In the example, the flattening for the new ellipsoid is assumed fixed at 1/298.3 as previously determined by Helmert and Krasovskiy. The value of da is determined as - 35.1 m and, by computation from Milan Bursa's formulas for determination of 'a' for Europe, the value of da is - 35.3 m. Although the number of stations which are used in the example is too small, it is adequate to demonstrate the projection method for obtaining the equatorial radius. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1964
- Accession Number
- AD0622816
Entities
People
- Vojislav Dimitrijevich
Organizations
- Aeronautical Chart and Information Center