Science. 1959 Feb 6;129(3345):329-30. doi: 10.1126/science.129.3345.329.
A theoretical equation relating the earth's oblateness to the anomalistic and nodical periods and orbit parameters of an earth satellite is presented. In the absence of exact data on nodical periods, Vanguard prediction data are utilized to obtain a check calculation for the oblateness and to establish the validity of the method.
本文提出了一个将地球扁率与地球卫星的异常周期和节点周期以及轨道参数相关联的理论方程。在没有节点周期的精确数据的情况下，利用先锋号预测数据进行了校验计算，以验证扁率和方法的有效性。
