accuracy analysis of orbit determination and prediction for low orbit lunar satellites
- Paper number
IAC-10.C1.1.8
- Author
Prof. Jiasong Wang, State Key Lab of Astrodynamics, China
- Coauthor
Ms. Jianrong Chen, State Key Lab of Astrodynamics, China
- Coauthor
Mr. Gongyou Wu, State Key Lab of Astrodynamics, China
- Coauthor
Mr. Yanrong Wang, Xi'an Satellite Control Center, China
- Coauthor
Mr. Nan Ye, Xi'an Satellite Control Center, China
- Year
2010
- Abstract
According to Chinese three-stage lunar exploration project,the first Chinese lunar satellite Chang'e-1 has completed the mission of circling,and the next two stages will aim at soft landing and sample return.During the later two phases,the working orbits of lunar probes will be 100km*100km or 200km*200km circular orbit,and may be reduced to 100km*15km or 200km*15km elliptic orbits before soft landing. To satisfy the requirement of mission design, the accuracy of orbit determination and prediction for such orbits should be analyzed beforehand. In this paper, based on USB or USB+VLBI joint tracking mode, orbit determination and prediction accuracy for low orbit lunar satellites with long or short observation arcs has been investigated using the simulation data and actual tracking data of Chang'e-1. The precision of three-way range system tracking data for Chang'e-1 has also been evaluated as well. In the end, some conclusions have been drawn which may be useful for mission general design and engineering operation.
- Abstract document
- Manuscript document
IAC-10.C1.1.8.pdf (🔒 authorized access only).
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