Advertisement

Quasi real-time positioning of spacecrafts using the Internet VLBI system

  • T. Kondo
  • Y. Koyama
  • R. Ichikawa
  • M. Sekido
  • H. Osaki
Conference paper
Part of the International Association of Geodesy Symposia book series (IAG SYMPOSIA, volume 128)

Abstract

We started the development of a quasi real time technique for spacecraft positioning by using the Internet-VLBI system in collaboration with the Institute of Space and Astronautical Science (ISAS). A series of VLBI observations receiving the signals from Japanese spacecraft GEOTAIL and NOZOMI have been carried out since June, 2002 to establish an observation method and to evaluate the measurement accuracy. At present it is possible to obtain the time delay which is a VLBI observable to use for satellite positioning within a few days after observations. Orbital determination software is under development in parallel to the improvement of observation data processing software. Phase delay measurement software is also under development to increase the measurement accuracy.

Keywords

Internet VLBI Delta VLBI 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Kondo T, Koyama Y, Nakajima J, Sekido M, Ichikawa R, Kawai E, Okubo H, Osaki H, Kimura M, Ichikawa Y, and GALAXY team (2002) Real-time Gigabit VLBI System and Internet VLBI System, IVS 2002 General Meeting Proceedings, pp142–146Google Scholar
  2. Koyama Y, Kurihara N, Kondo T, Sekido M, Takahashi Y, Kiuchi H, and Heki K (1998) Automated geodetic Very Long Baseline Interferometry observation and data analysis system, Earth, Planets and Space, 50, pp 709–722Google Scholar
  3. Nishida A (1994) The GEOTAIL mission, Geopys. Res. Lett., 21, pp 2871–2873CrossRefGoogle Scholar
  4. Thornton C L and Border J S (2003) Radiometric tracking techniques for deep-space navigation, Deep-space communications and navigation siries Monograph 1, John Wiley & Sons IncGoogle Scholar
  5. Yamamoto T and Tsuruda K (1998) The PLANET-B mission, Earth Planets Space, 50, pp 175–18Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • T. Kondo
    • 1
  • Y. Koyama
    • 1
  • R. Ichikawa
    • 1
  • M. Sekido
    • 1
  • H. Osaki
    • 1
  1. 1.Communications Research LaboratoryKashima Space Research CenterKashima, IbarakiJapan

Personalised recommendations