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Ptolemy: operations at 21 Lutetia as part of the Rosetta mission and future implications

机译:托勒密:作为罗塞塔任务和未来影响的一部分,在21卢特西亚开展业务

摘要

The Rosetta mission and Ptolemy: Rosetta is the European Space Agency ‘Planetary Cornerstone’ mission intended to solve many of the unanswered questions surrounding the small bodies of the Solar System – the comets, the asteroids and the trans-Neptunians. Launched in March 2004 it is now over halfway through its cruise, leading up to entering orbit around the nucleus of comet 67P/Churyumov-Gerasimenko in mid-2014. To date, this cruise has included three gravitational assist manoeuvres using Earth and one such manoeuvre using the gravity well of Mars, necessary to match the orbit of Rosetta to that of the target comet. In addition, targeted flybys of two asteroids have returned a plethora of data to be compared with the comet observations to come. These flybys were of the 5.3 km diameter E-type asteroid 2867 Šteins on September 5th 2008, and a similar 3,162 km flyby of the 100 km diameter asteroid 21 Lutetia on July 10th 2010, the focus of this work.
机译:罗塞塔任务和托勒密:罗塞塔任务是欧洲航天局的“行星基石”任务,旨在解决围绕太阳系小天体(彗星,小行星和海王星的行星)的许多悬而未决的问题。它于2004年3月发射升空,目前已经航行了一半,直到2014年中期进入围绕67P / Churyumov-Gerasimenko彗核的轨道。迄今为止,这次巡航包括使用地球的三项重力辅助演习和使用火星重力井的一项此类演习,这是使罗塞塔的轨道与目标彗星的轨道相匹配所必需的。此外,两个小行星的定向飞越还返回了大量数据,可与即将进行的彗星观测进行比较。这些飞越是在2008年9月5日进行的,直径为5.3公里的E型小行星2867Šteins的飞越,2010年7月10日,在直径100公里的小行星21 Lutetia中,进行了类似的3,162公里飞越。

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