摘要: In the field of astrodynamics the numerical values of various physical constants are required with the greatest precision possible. This document explains that generally the most desirable units for astrodynamical work are differe... 展开 In the field of astrodynamics the numerical values of various physical constants are required with the greatest precision possible. This document explains that generally the most desirable units for astrodynamical work are different from those used in the laboratory and rely heavily on astronomical observatlons. Furthermore, there is much interdependency among them complicated by accidental and unkown systematic errorB. By employing statistical methods the accidental errors are reduced and the use of metastatisties reduces the effects of the unknown systematic errors. These techniques are applied to presently available data to establish the best values of various gravitational, geodetic and related constants. The report also recognizes the fact that none of the constants are definitive, but subject to further improvement in the future. 收起