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IVS2004 Directing Board Elections



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Candidates for Representative Positions

This page provides information about the candidates for representative positions on the IVS Directing Board. Within each category candidates are listed alphabetically by their family names. The Representatives will be elected by the Associate Members.


Candidates for Analysis and Data Centers Representative

Patrick Charlot
Bordeaux Observatory, France
Patrick Charlot has been working in the VLBI field for 19 years. He obtained a Ph. D. from Paris Observatory in 1989 for his study of the effects of source structure in astrometric and geodetic VLBI. Following his Ph. D., he spent two years as a post-doc in the astrometric techniques group at the Jet Propulsion Laboratory. Back in France, he obtained a permanent position at the CNRS (National Center for Scientific Research), working first (1991-1998) for the IERS group in Paris, and then (since 1998) at Bordeaux Observatory. Over the years, Patrick has been involved with various VLBI analysis and research activities for applications ranging from geodesy (determination of telescope positions in Europe) to Earth rotation (estimation of precession and nutation) and astrometry (ICRF densification and extension, source structure effects and astrophysical imaging). He has also been involved with designing and scheduling VLBI experiments related to the above aspects.

Rüdiger Haas
Onsala Space Observatory, Sweden
Rüdiger Haas obtained the Ph.D. from the Geodetic Institute of the University of Bonn (Germany) in February 1997. Starting in 1997 he was a "young researcher" at the Onsala Space Observatory participating in the European Training and Mobility of Researchers (TMR) Programme. In November and December 1998 he was a guest scientist at the Communications Research Laboratory (CRL) in Kogane/Tokyo (Japan). From June 2000 to May 2004 he held a position as Assistant Professor at Chalmers University of Technology, Onsala Space Observatory and in June 2004 he was promoted a permanent position as Associate Professor. In February 2004 he became secretary of the European VLBI Group for Geodesy (EVG) and since July 2004 he has the responsibility for the geodesy VLBI activities at the Onsala Network Station. Since Onsala Space Observatory is also a member of the European and worldwide VLBI networks for radio astronomy, Rüdiger has a good overall awareness of VLBI activities.

Zinovy Malkin
Institute of Applied Astronomy, Russia
Zinovy Malkin is the Head of the Laboratory of Space Geodesy and Earth Rotation of the Institute of Applied Astronomy, St. Petersburg, Russia, specialist in analysis of Space Geodesy observations, and software development. His group has provided EOP series obtained from processing of VLBI, SLR and GPS data for the IERS and the IVS during many years, and also station coordinates and tropospheric parameters time series for the IVS and the EPN combining centers. Zinovy is a member of the IVS Directing Board, an Associate Member of the IERS, and a member of IAU Commission 19 (Rotation of the Earth) Organizing Committee.

Arthur Niell
Haystack Observatory, USA
Arthur Niell has been doing geodetic VLBI analysis since participating in the development of the first transportable geodetic VLBI system at the Jet Propulsion Laboratory thirty years ago. He approached the field of geodesy through an undergraduate degree in Physics from Caltech and a Ph. D. in Radio Astronomy from Cornell University. After twelve years at JPL, where he participated in all aspects of the mobile VLBI program, including scheduling, observing, correlating, and analyzing the data, he moved to Haystack Observatory. There he has worked at improving the accuracy of the geodetic VLBI results through better scheduling algorithms, enhanced correlator throughput efficiency, atmosphere modeling, and efforts to maintain high levels of station performance. Most of his geodetic VLBI analysis has used solvk, a Kalman filter based estimation program which he has modified to investigate atmosphere models and other effects, and he has modified and used the gipsy scripts for GPS analyis to investigate antenna errors and atmosphere effects. Arthur has been an active participant in the IVS as a member of the Steering Committee that established the IVS and as Technology Development Center representative. He has served on the Observing Program Committee through monthly telecons, and he originated the monthly 'mk4' telecons to encourage communication among the geodetic correlators and the correlator scientists. He supports a similar effort among those members of the VLBI analysis community that are interested in improving the accuracy of the geodetic VLBI results.



Candidates for Technology Development Centers Representative

Yasuhiro Koyama
National Institute of Information and Communications Technology, Japan
Yasuhiro Koyama was born in Osaka, Japan, on 6 March 1964. He received a Master of Engineering degree from Kyoto University and joined the Communications Research Laboratory (now NICT) in 1988. Recently, he earned Ph.D degree from the Graduate University for Advanced Studies from the studies in the field of e-VLBI in 2003. Current affiliation is the Senior Research Scientist in the Radio Astronomy Applications Group of Kashima Space Research Center, NICT. Main research fields are Very Long Baseline Interferometry and Radio Science. He and his colleagues at NICT have been making great efforts to advance various aspects of technologies for VLBI including observing systems, data processing systems, and data analysis. NICT has cooperated with the other Technology Development Centers of IVS to promote standardization and compatibilities between various systems and is recently concentrating to realize global scale e-VLBI in practice.

Bill Petrachenko
Natural Resources Canada, Canada
Bill Petrachenko has 30+ years involvement in the geophysical and geodetic applications of VLBI, touching on nearly every aspect of the technique:

  • In his M.Sc. thesis, he developed geophysical analysis/modelling software to process early Canadian analog VLBI data.
  • In his Ph.D. thesis, he studied the potential of a satellite phase link as an innovative and economical replacement for a hydrogen maser.
  • During his post-Doctoral research, he was involved in the design and implementation of the Canadian S1 VLBI system.
  • While at Haystack Observatory, he was involved in the development of the controller for the VLBA record/playback system.
  • He was part of the team that rescued the Algonquin antenna from mothball status, converting the antenna site to an active geodetic VLBI observatory.
  • He was chief architect of the Canadian S2 VLBI system for geodesy.
  • He was on the design team of the Canadian S2 VLBI correlator.
  • He was chief engineer for the Canadian S2, ``Frequency Agile'' VLBI Data Acquisition System.
  • He developed fringing software for the Canadian S2 ``Frequency Agile'' VLBI correlator system.
  • He is currently manager of the Canadian S2 Geodetic VLBI correlator.
  • He is the Chairman of the Observing Strategies sub-group of WG3: VLBI2010.