logo

SCIENCE CHINA Information Sciences, Volume 60, Issue 1: 012203(2017) https://doi.org/10.1007/s11432-016-0195-9

Initial result of the Chinese Deep Space Stations' coordinates from Chinese domestic VLBI experiments

More info
  • ReceivedMar 8, 2016
  • AcceptedJun 30, 2016
  • PublishedNov 18, 2016

Abstract

China's Lunar Exploration Program (CLEP) prompted the design and construction of the globally distributed Chinese Deep Space Network (CDSN). This network consists of Jiamusi and Kashi stations in China, and Zapala station in Argentina. However, the positions of Jiamusi and Kashi are not accurate enough for future Chinese deep space missions, and geodetic Very Long Baseline Interferometry (VLBI) is the most effective way to determine their positions. Since the CDSN stations are equipped with narrow-band receivers, they cannot participate in current international VLBI sessions in which wide-band frequencies are utilized. Thus a cooperative geodetic program of the CDSN and Chinese VLBI Network (CVN, the VLBI tracking subsystem of the CLEP) was initiated to determine their positions, in which specially designed frequencies can be utilized, and some CVN stations can act as position reference stations owing to their precise positions from long-term international VLBI observations. Primary results have been obtained from the CDSN--CVN combined domestic VLBI experiments from September 28, 2014, through December 10, 2015. The positions of Jiamusi and Kashi are determined to be better than 10-mm precision in the $X$, $Y$, and $Z$ directions, which are improved by a factor of approximately 20 over their a priori values.


Funded by

. We would like to sincerely thank the staffs of all stations involved for carrying out the experiment. We greatly acknowledge the IVS for coordinating the IVS sessions and all the developers of the software packages used in this paper i.e. SKED DiFX HOPS Calc/Solve. We thank Wu Jiang and Tianyu Jiang of Shanghai Astronomical Observatory(SHAO)

Key Techniques Research Program of China's Lunar Exploration(TY3Q20100009)


Acknowledgment

Acknowledgments

This work was supported by Key Techniques Research Program of China's Lunar Exploration (Grant No. TY3Q20100009). We would like to sincerely thank the staffs of all stations involved for carrying out the experiment. We greatly acknowledge the IVS for coordinating the IVS sessions and all the developers of the software packages used in this paper, i.e. SKED, DiFX, HOPS, and Calc/Solve. We thank Wu Jiang and Tianyu Jiang of Shanghai Astronomical Observatory (SHAO) for their help with the DiFX software, M Titus, B Corey, and R Cappallo of MIT Haystack Observatory for their help with the HOPS software, and Minghui Xu of SHAO for his advice on using the Calc/Solve software. We also thank Gang Ji, Hong Wang, Min Fan, Wanhong Hao, and Shaowu Chen of BITTT for their supports.


References

[1] Zhou H, Li H T, Dong G L. Relative position determination between Chang'E-3 lander and rover using in-beam phase referencing. Sci China Inf Sci, 2015, 58: 092201 Google Scholar

[2] Folkner W M. DSN Station Locations And Uncertainties. TDA Progress Report 42-128. 1996. Google Scholar

[3] Petrov L, Gordon D, Gipson J, et al. Precise geodesy with the very long baseline array. J Geod, 2009, 83: 859-876 CrossRef Google Scholar

[4] Li J L, Xiong F W, Yu C L, et al. Precise determination of the reference point coordinates of Shanghai Tianma 65-m radio telescope. Chin Sci Bull, 2014, 59: 2558-2567 CrossRef Google Scholar

[5] L{ö}sler M. Reference point determination with a new mathematical model at the 20 m VLBI radio telescope in Wettzell. J Appl Geod, 2008, 2: 233-238 Google Scholar

[6] L{ö}sler M. New mathematical model for reference point determination of an azimuth-elevation type radio telescope. J Surv Eng, 2009, 135: 131-135 CrossRef Google Scholar

[7] Rogers A E E. Very long baseline interferometry with large effective bandwidth for phase-delay measurements. Radio Sci, 1970, 5: 1239-1247 CrossRef Google Scholar

[8] Li J L, Guo L, Zhang B. The Chinese VLBI network and its astrometric role. In: Proceedings of the International Astronomical Union, Shanghai, 2007. 182--185. Google Scholar

[9] Gipson J. An introduction to sked. In: Proceedings of the 6th IVS General Meeting: VLBI2010: From Vision to Reality, Hobart, 2010. 77--84. Google Scholar

[10] Gorham P W. Designing Optimal Bandwidth Synthesis Arrays for VLBI. The Telecommunications and Mission Operations Progress Report 42-133. 1998. Google Scholar

[11] Wietfeldt Jr R D. A frequency-agile system for VLBI bandwidth synthesis. Dissertation for Ph.D. Degree. Toronto: York University, 1995. 12--14. Google Scholar

[12] Whitney A R. Precision geodesy and astrometry via very-long-baseline interferometry. Dissertation for Ph.D. Degree. Cambridge: Massachusetts Institute of Technology, 1974. 115--116. Google Scholar

[13] Deller A T, Tingay S J, Bailes M, et al. DiFX: a software correlator for very long baseline interferometry using multiprocessor computing environments. Publ Astron Soc Pac, 2007, 119: 318-336 CrossRef Google Scholar

[14] Tingay S J, Alef W, Graham D, et al. Geodetic VLBI correlation in software. J Geod, 2009, 83: 1061-1069 CrossRef Google Scholar

[15] Petit G, Luzum B. IERS Conventions (2010). IERS Technical Note No. 36. 2010. Google Scholar

[16] Niell A E. Global mapping functions for the atmosphere delay at radio wavelengths. J Geophys Res, 1996, 101: 3227-3246 CrossRef Google Scholar

[17] Altamimi Z, Collilieux X, Métivier L. ITRF2008: an improved solution of the international terrestrial reference frame. J Geod, 2011, 85: 457-473 CrossRef Google Scholar

[18] Fey A L, Gordon D, Jacobs C S, et al. The Second Realization of the International Celestial Reference Frame by Very Long Baseline Interferometry. IERS Technical Note No. 35. 2009. Google Scholar

[19] Wang G L, Ye S H, Qian Z H, et al. Measurements of the VLBI experiments during the first campaign of the Asian-Pacific space geodynamics (APSG) program. Sci China Ser A, 2001, 44: 259-264 CrossRef Google Scholar

[20] Schlüter W, Behrend D. The international VLBI service for geodesy and astrometry (IVS): current capabilities and future prospects. J Geod, 2007, 81: 379-387 CrossRef Google Scholar

Copyright 2019 Science China Press Co., Ltd. 《中国科学》杂志社有限责任公司 版权所有

京ICP备18024590号-1