Ultra rapid dUT1 estimations from e-VLBI sessions
Paper i proceeding, 2010

Promptness of the data processing of the international VLBI observations has been continuously improved in the past decades. In particular, e-VLBI technique has proved that it has a capability to shorten the latency by transferring the observed data to the correlator by using high speed communication networks. The method has been introduced to routine intensive VLBI sessions to monitor dUT1. To improve the promptness even further, we started an initiative to develop automated data transfer and data processing systems using Europe-Japan baselines. On February 21, 2008, we succeeded to demonstrate the effectiveness of the developed systems and estimated the dUT1 parameter 3 minutes 45 seconds after the last scan of the one hour intensive style e-VLBI session. This achievement was realized by the developments of the K5/VSSP32 data acquisition terminal, automated data processing and analysis software.

geodetic VLBI

earth rotation

Författare

Yasuhiro Koyama

Japan National Institute of Information and Communications Technology

Tetsuro Kondo

Japan National Institute of Information and Communications Technology

Ajou University

Mamoru Sekido

Japan National Institute of Information and Communications Technology

Thomas Hobiger

Japan National Institute of Information and Communications Technology

Hiroshi Takiguchi

Japan National Institute of Information and Communications Technology

Kozin Wada

Geographical Survey Institute of Japan

Shinobu Kurihara

Geographical Survey Institute of Japan

Rüdiger Haas

Chalmers, Rymd- och geovetenskap, Rymdgeodesi och geodynamik

Jan Wagner

Aalto-Yliopisto

Ari Mujunen

Aalto-Yliopisto

Jouko Ritakari

Aalto-Yliopisto

Advances in Geosciences: Volume 20: Solid Earth (SE); World Scientific Publishing Company

Vol. 20 197-204

Ämneskategorier

Fysik

Geovetenskap och miljövetenskap

Fundament

Grundläggande vetenskaper

DOI

10.1142/9789812838186_0012

ISBN

978-981283818-6