Chinese Space Science and Technology ›› 2021, Vol. 41 ›› Issue (3): 9-15.doi: 10.16708/j.cnki.1000.758X.2021.0032

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Transfers analysis of deploying a retrograde GEO monitorsatellite by Moon swing-by

HE Boyong1,2,*,MA Pengbin1,DU Weibing1,LI Hengnian1   

  1. 1 State Key Laboratory of Astronautic Dynamics, Xi′an Satellite Control Center,Xi′an 710043,China
    2 School of Astronautics,Northwestern Polytechnical University,Xi′an 710072,China
  • Received:2020-08-06 Revised:2020-09-08 Accepted:2020-12-30 Online:2021-06-25 Published:2021-06-25
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Abstract: Retro-GEO refers to the retrograde geostationary Earth orbit (GEO), which has the same or similar height as that of the GEO, but with an inclination of 180 °. A monitorsatellite on retroGEO can give early debris warning for the GEO assets every 12 hours. RetroGEO launched directly in the westward has great difficulties in ground tracking and control, as well as launch energy cost. Based on a four body model, and in order to reduce the sensitivity of design variables, a transfer to retro-GEO design model by the Moon swing by was proposed applying the trans-lunar orbital elements at the moment of perilune. The result obtanined by using orbital dynamics model continuation shows a natural property of such orbits, that is the return duration from perilune must be about 114.79 hours. The conclusion can be used to solve this kind of orbit with a high precision orbital dynamics model.

Key words: retrograde GEO, debris warning, orbit design, Moon swingby, model continuation

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