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Open loop doppler tracking in Chinese forthcoming Mars mission

Published online by Cambridge University Press:  06 January 2010

Kun Shang ,
Jinsong Ping ,
Chunli Dai  and
Nianchuan Jian
Kun Shang
Affiliation:
Shanghai Astronomical Observatory, 80 Nandan Road, Shanghai 200030, China email: shangkun@shao.ac.cn
Jinsong Ping
Affiliation:
Shanghai Astronomical Observatory, 80 Nandan Road, Shanghai 200030, China email: shangkun@shao.ac.cn
Chunli Dai
Affiliation:
Shanghai Astronomical Observatory, 80 Nandan Road, Shanghai 200030, China email: shangkun@shao.ac.cn
Nianchuan Jian
Affiliation:
Shanghai Astronomical Observatory, 80 Nandan Road, Shanghai 200030, China email: shangkun@shao.ac.cn
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Abstract

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Using the radio telescopes in Chinese VLBI Network and the K5/VSSP32 VLBI system of NICT in Japan, we have developed algorithms that can extract open loop Doppler information from the Chang'E-1 and Mars Express radio tracking data. Our latest results indicate the Doppler accuracy of open loop three-way Doppler is about 1mm/s in 1 second integration time, relative to a 8.4GHz carrier. In the forthcoming joint Russian-Chinese Martian mission in 2009, the current software algorithms and hardware performance will be improved, and we will attempt to use the high precision Doppler shift and phase information to test gravitation theories.

Keywords

celestial mechanicsspace vehicles: instrumentstechniques: radial velocitiesplanets and satellites: general

References

Ping, J. S., Frank, W., & Yusuke, K. 2001, Journal of Planetary Geodesy, 36, 15–22Google Scholar
Thornton, C. L. & Border, J. S. 2002, Radiometric Tracking Techniques for Deep-Space Navigation (Pasadena, California: JPL Publication), p. 9–46Google Scholar
Will, C. W. 1993, Theory and Experiment in Gravitational Physics (Cambridge: Cambridge University Press)CrossRefGoogle Scholar