APPLICATION OF THE METHOD OF EQUALIZATION OF OBSERVATIONS FOR EVALUATING THE POSITIONS OF AN ARTIFICIAL SATELLITE OF THE EARTH,
FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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The objective evaluation of the precision of observations of artificial satellites of the earth is obtained ordinarily as a collateral product in the process of determining or improving the elements of the orbits of selected satellites. The respective computations are based on great series of observations carried out at different stations at different points of the earths sphere over the course of an interval of time of the order of several weeks and in an extreme case, days. These series of observations can hardly be recognized as uniform. Lack of agreement in the data of observations and the theory under these conditions is reflected not only by actual, random, and systematic errors in the observations, but also by errors in the position of the stations of observations, imperfections in the theory, or real anomalies in the movement of the satellites, which can be especially notable in the case of low satellites.
- Spacecraft Trajectories and Reentry