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Open loop doppler tracking in Chinese forthcoming Mars mission

Published online by Cambridge University Press:  06 January 2010

Kun Shang
Affiliation:
Shanghai Astronomical Observatory, 80 Nandan Road, Shanghai 200030, China email: [email protected]
Jinsong Ping
Affiliation:
Shanghai Astronomical Observatory, 80 Nandan Road, Shanghai 200030, China email: [email protected]
Chunli Dai
Affiliation:
Shanghai Astronomical Observatory, 80 Nandan Road, Shanghai 200030, China email: [email protected]
Nianchuan Jian
Affiliation:
Shanghai Astronomical Observatory, 80 Nandan Road, Shanghai 200030, China email: [email protected]
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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.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2010

References

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