Ultra-rapid dut1-observations with e-VLBI

• Autorzy: Haas R. , Sekido M. , Hobiger T. , Kondo T. , Kurihara S. , Tanimoto D. , Kokado K. , Wagner J. , Ritakari J. , Mujunen A.

Identyfikatory

DOI

10.2478/v10018-010-0007-6

• Konferencja: Proceedings of the IERS Workshop on EOP Combination and Prediction, Warsaw, 19-21 October 2009
• Języki publikacji: EN

Abstrakty

EN

We give a short overview about the achievements of the FennoscandianJapanese ultra-rapid dUT1-project that was initiated in early 2007. The combination of real-time data transfer, near real-time data conversion and correlation, together with nearreal time data analysis allows to determine dUT1 with a very low latency of less than 5 minutes after the end of a VLBI-session. The accuracy of these ultra-rapid dUT1-results is on the same order than the results of the standard rapid-service of the International Earth Rotation and Reference Frame Service (IERS). The ultra-rapid approach is currently extended to 24 hour sessions and is expected to become an important contribution for the future next generation VLBI system called VLBI2010.

Słowa kluczowe

EN

Very Long Baseline Interferometry; Earth orientation; dUT1 observations; e-VLBI; VLBI2010

• Wydawca: Centrum Badań Kosmicznych PAN ; De Gruyter
• Czasopismo: Artificial Satellites : Journal of Planetary Geodesy
• Rocznik: 2010
• Tom: Vol. 45, No. 2
• Strony: 75--79
• Opis fizyczny: Bibliogr. 6 poz., rys., tab.

Twórcy

autor

Haas R.

• Chalmers University of Technology, Onsala Space Observatory, Sweden

autor

Sekido M.

• National Institute of Information and Communications Technology, Japan

autor

Hobiger T.

• National Institute of Information and Communications Technology, Japan

autor

Kondo T.

• National Institute of Information and Communications Technology, Japan

autor

Kurihara S.

• Geographical Survey Institute, Japan

autor

Tanimoto D.

• Geographical Survey Institute, Japan

autor

Kokado K.

• Geographical Survey Institute, Japan

autor

Wagner J.

• Metsähovi Radio Observatory, Aalto University, Finland

autor

Ritakari J.

• Metsähovi Radio Observatory, Aalto University, Finland

autor

Mujunen A.

• Metsähovi Radio Observatory, Aalto University, Finland

Bibliografia

• Luzum B., Nothnagel A. (2010) Improved UT1 predictions through low-latency VLBI observations, Journal of Geodesy, DOI 10.1007/s00190-010-0372-8.
• Matsuzaka S., Shigematsu H., Kurihara S., Machida M., Kokado K., Tanimoto D. (2008) Ultra Rapid UT1 Experiment with e-VLBI, In: Proc. 5th IVS General Meeting, eds. Finkelstein A., Behrend D., Saint Petersburg, 2008, 68-71.
• Nothnagel A., Schnell D. (2008) The impact of errors in polar motion and nutation on UT1 determinations from VLBI Intensive observations, Journal of Geodesy, Vol. 82(12), 863. doi:10.1007/s00190-008-0212-2.
• Petrachenko B., Niell A., Behrend D., Corey B., B¨ohm J., Charlot P., Collioud A., Gipson J., Haas R., Hobiger T., Koyama Y., MacMillan D., Malkin Z., Nilsson T., Pany A., Tuccari G., Whitney A., Wresnik J. (2009) Design Aspects of the VLBI2010 System. Washington, DC, USA : NASA, NASA/TM-2009-214180.
• Schlüter W., Behrend D. (2007) The International VLBI Service for Geodesy and Astrometry (IVS): current capabilities and future prospects, Journal of Geodesy, Vol. 81(68):479, doi:10.1007/s00190-006-0131-z.
• Sekido M., Takiguchi H., Koyama Y., Kondo T., Haas R., Wagner J., Ritakari J., Kurihara S., KokadoK. (2008) Ultra-rapid UT1 measurements by e-VLBI, Earth Planets and Space, Vol. 60, 865-870.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).