Relativistic Warning to Space Missions Aimed to Reach Phobos

• 作者: Alexander P. Yefremov
• 来源期刊: 天文学与天体物理学国际期刊(英文)
• 学科: 医学
• 关键词: PLANET Satellite Earth MARS PHOBOS Acceleration Shift QUATERNION RELATIVITY
• 年，卷（期）: 2011,（4）
• 页码范围: 200-203
• 页数: 4页
• 分类号: R73

摘要

Disagreement in estimations of the observed acceleration of Phobos yields several theories empirically modifying classical description of motion of the satellite, but its orbital positions detected by Mars-aimed spacecraft differ from predictions. It is shown that the satellite’s orbital perturbations can be explained as manifestations of the relativistic time-delay effect ignored in classical models. So computed limits of Phobos’ acceleration essentially exceed the experimental values. The satellite’s expected orbital shift is calculated for the moment of contact with a landing module of the Phobos-Grunt project;the shift assessed in kilometers may prevent the mission success. Limits of the apparent relativistic accelerations are predicted for fast satellites of Jupiter.