CCD observations of Nereid and a new orbital determination
CCD observations of Nereid and a new orbital determination
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DOI：
10.1051/aas:1999226
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发表时间：
1999-05
期刊：
影响因子：
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通讯作者：
C. Veiga;R. V. Martins;C. L. Guyader
中科院分区：
文献类型：
--
作者：
C. Veiga;R. V. Martins;C. L. Guyader
给出了1993 ~ 1998年期间拍摄的229个海卫二CCD位置。许多观测都是在近心点附近进行的。还考虑到其他公布的立场，我们有一个很好的分布的观测偏心轨道的卫星。使用数值积分方法，我们拟合所有这些观测，以确定一个状态向量的轨道。所有观测值的观测值减去计算的标准差是023，而我们的观测值是016。
229 CCD positions of Nereid taken between 1993 and 1998 are presented. Many of the observations were taken near the periapsis. Considering also the other published positions we have a good distribution of the observations on the eccentric orbit of the satellite. Using a numeric integration method we fitted all these observations in order to determine one state vector for the orbit. The observed minus calculated standard deviation for all observations is 023, and for our observations it is 016.