Astrometric observations of Helene

Astrometric photographic positions of the Saturnian satellite Helene obtained from 22 plates taken in 6 nights are presented. The observations are distributed between 5 missions...

本数据集提供了通过6个夜晚拍摄的22张照相底片所测得的土卫十二海伦（Helene）的天体测量摄影位置数据。该批观测数据分布于5项观测任务之中。