Design of an asteroid flying-by mission for CHANG’E-2
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    Abstract:

    An asteroid rendezvous plan for CHANG′E-2 was put forward and the corresponding mission was designed to maximize the satellite utilization. First, the satellite status of CHANG′E-2 at present was introduced. Based on the constraint of the current CHANG′E-2 orbit and remaining fuel and TT&C (telemetry, track, and command) capacity, the design of optimal transfer trajectory and the selection of rendezvous asteroid were studied. The suitable asteroids for rendezvous were given as a result. Second, the mid-course correction was studied according to two orbit maneuver modes, i.e., the fixed interval mode and the fixed interval mode with a least velocity increment constraint. Finally, the TT&C condition of the asteroid rendezvous mission was briefly analyzed according to the Chinese deep space network. The results show that the fuel remains can support the rendezvous of CHANG′E-2 with Asteroid 1997XF11 and 2005VS. Furthermore, the Chinese deep space network can provide an 8-h daily VLBI (Very Long Baseline Interferometry) tracking at least in the interplanetary course. The velocity increment for mid-course corrections is less than 10 m/s.

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LIU Lei, WU Weiren, TANG Geshi, ZHOU Jianliang. Design of an asteroid flying-by mission for CHANG’E-2[J]. Journal of National University of Defense Technology,2014,36(2):13-17.

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History
  • Received:October 20,2013
  • Revised:
  • Adopted:
  • Online: May 14,2014
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