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首页> 外文期刊>Planetary and space science >Operation of CONSERT aboard Rosetta during the descent of Philae
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Operation of CONSERT aboard Rosetta during the descent of Philae

机译：在Philae下降期间在Rosetta上进行CONSERT的操作

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摘要

This paper presents a study investigating the performance of using the CONSERT instrument aboard the Rosetta spacecraft as a radar sounder during the Separation-Descent-Landing (SDL) phase of the Rosetta mission. Gathering scientifically valuable data during this phase will support CONSERTs primary target, the reconstruction of the 3D permittivity distribution within the comet 67P/Churyumov-Gerasimenko, by providing a permittivity map of the surface around the landing site. Simulation results will show the performance of the instrument, using a realistic setup including the antenna characteristics of both orbiter and landing unit as well as a realistic orbitography for the descent phase. It will be shown that operating the CONSERT instrument will indeed provide very valuable data, thereby providing tremendous aid to the experiment's main objective. Furthermore, by including knowledge of the antenna characteristics, it is possible to calculate attitude and descent profile of the Philae lander during descent, using the data of the line-of-sight propagation path and the echoes reflected from the comet's surface.
机译：本文提出一项研究，以研究在Rosetta任务的分离下降降落（SDL）阶段在Rosetta航天器上使用CONSERT仪器作为雷达发声器的性能。在此阶段收集具有科学价值的数据将支持CONSERT的主要目标，即通过提供着陆点周围表面的介电常数图，重建67P / Churyumov-Gerasimenko彗星内的3D介电常数分布。仿真结果将使用包括轨道器和着陆单元的天线特性以及下降阶段的实际轨道图在内的实际设置来显示仪器的性能。结果表明，使用CONSERT仪器确实可以提供非常有价值的数据，从而为实验的主要目标提供了巨大的帮助。此外，通过包括天线特性的知识，可以使用视线传播路径的数据和从彗星表面反射的回波来计算菲拉着陆器在下降过程中的姿态和下降轮廓。

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  • 来源
    《Planetary and space science》 |2013年第12期|151-158|共8页
  • 作者

    Sebastian Hegler; Christoph Statz; Ronny Hahnel; Dirk Plettemeier; Alain Herique; Wlodek Kofman;

  • 作者单位

    Dresden University of Technology, Chair for RF Engineering, Georg-Schumann-Str. 9, 01027 Dresden, Germany;

    Dresden University of Technology, Chair for RF Engineering, Georg-Schumann-Str. 9, 01027 Dresden, Germany;

    Dresden University of Technology, Chair for RF Engineering, Georg-Schumann-Str. 9, 01027 Dresden, Germany;

    Dresden University of Technology, Chair for RF Engineering, Georg-Schumann-Str. 9, 01027 Dresden, Germany;

    UJF-Grenoble 1/CNRS-INSU, lnstitut de Planetologie et dAstrophysique de Grenoble (IPAG) UMR5274, Grenoble F-38041, France;

    UJF-Grenoble 1/CNRS-INSU, lnstitut de Planetologie et dAstrophysique de Grenoble (IPAG) UMR5274, Grenoble F-38041, France ,Visiting Professor at Space Research Centre of the Polish Academy of Sciences, ul. Bartycka 18A, Warsaw, 15 Poland;

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  • 正文语种 eng
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  • 关键词

    67P/Churyumov-Gerasimenko; Comet; Rosetta; CONSERT; Radar sounding; Remote sensing; Descent dynamics; Attitude reconstruction; Permittivity reconstruction;

    机译：67P /丘里莫夫-格拉西缅科;彗星;罗塞塔;咨询;雷达探测;遥感;下降动力学;态度重建;介电常数重建;

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