Heteroclinic and Homoclinic Connections between the Sun-Earth Triangular Points and Quasi-Satellite Orbits for Solar Observations  

作　　者：Pedro J. Llanos Gerald R. Hintz Martin W. Lo James K. Miller 

机构地区：[1]Flight Mechanics Section, GMV Space and Defence, S. A., Tres Cantos, Madrid 28760, Spain [2]Astronautical Engineering Department, University of Southern California, Los Angeles 90089, USA [3]Jet Propulsion Laboratory, California Institute of Technology, Pasadena 91109, USA [4]Retired Chief Scientist, Space Navigation and Flight Dynamics Section, KinetX Inc., Simi Valley, California, 93065, USA

出　　处：《Journal of Earth Science and Engineering》2013年第8期515-526,共12页地球科学与工程（英文版）

摘　　要：Investigation of new orbit geometries exhibits a very attractive behavior for a spacecraft to monitor space weather coming from the Sun. Several orbit transfer mechanisms are analyzed as potential alternatives to monitor solar activity such as a sub-solar orbit or quasi-satellite orbit and short and long heteroclinic and homoclinic connections between the triangular points L4 and L5 and the collinear point L3 of the CRTBP （circular restricted three-body problem） in the Sun-Earth system. These trajectories could serve as channels through where material can be transported from L5 to L3 by performing small maneuvers at the departure of the Trojan orbit. The size of these maneuvers at L5 is between 299 m/s and 730 m/s depending on the transfer time of the trajectory and does not need any deterministic maneuvers at L3. Our results suggest that material may also be transported from the Trojan orbits to quasi-satellite orbits or even displaced quasi-satellite orbits.

关 键 词：Quasi-satellite orbits HETEROCLINIC HOMOCLINIC Sun-Earth triangular points invariant manifolds solar observations. 

分 类 号：P182.2[天文地球—天文学] V412.41[航空宇航科学与技术—航空宇航推进理论与工程]