首页> 外文会议>IEEE International Workshop on Metrology for Aerospace >Spacecraft design impacts on the post-Newtonian parameter estimation
【24h】

Spacecraft design impacts on the post-Newtonian parameter estimation

机译:航天器设计对牛顿后参数估计的影响

获取原文

摘要

The ESA mission BepiColombo, reaching out to explore the elusive planet Mercury, features unprecedented tracking techniques. The highly precise orbit determination around Mercury is a compelling opportunity for a modern test of General Relativity (GR). Using the software tool GRETCHEN incorporating the Square Root Information Filter (SRIF), MPO's orbit is simulated and the post-Newtonian parameters (PNP) are estimated. In this work, the influence of a specific constraint of the Mercury Orbiter Radio science Experiment (MORE) on the achievable accuracy of the PNP estimates is investigated. The power system design of the spacecraft requires that ±35° around perihelion the Ka transponder needs to be switched off, thus radiometric data is only gathered via X band. This analysis shows the impact of this constraint on the achievable accuracy of PNP estimates. On a bigger scale, if GR shows some violation at a detectable level it inevitably leads to its invalidation.
机译:ESA的任务BepiColombo伸出手探索难以捉摸的水星,它具有前所未有的跟踪技术。水星周围高精度的轨道确定为现代广义相对论(GR)测试提供了诱人的机会。使用包含平方根信息过滤器(SRIF)的软件工具GRETCHEN,可以模拟MPO的轨道,并估算牛顿后参数(PNP)。在这项工作中,研究了水星轨道无线电科学实验(MORE)的特定约束对PNP估计可达到的准确性的影响。航天器的动力系统设计需要关闭近日点周围±35°的Ka发送应答器,因此辐射数据仅通过X波段收集。该分析显示了此约束对PNP估算可达到的准确性的影响。在更大的范围内,如果GR在可检测的水平上显示出某种违规,则不可避免地会导致其失效。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号