************************************************************************ IERS Message No. 197 October 27, 2011 ************************************************************************ Position in project D-VLBI at Vienna University of Technology Within the Research Unit "Space-Time Reference Systems for Monitoring Global Change and for Precise Navigation in Space", established by the Deutsche Forschungsgemeinschaft (DFG), one position for a Ph.D. student (or post-doc) in project D-VLBI - Ties between kinematic and dynamic reference frames will be filled for three years at the Vienna University of Technology. Information about the salary can be found at http://www.fwf.ac.at. The goal of project D-VLBI is the realization of frame ties between the dynamic reference frames of space probes like satellites and spacecrafts, the kinematically defined International Celestial Reference Frame (ICRF) consisting of precise coordinates of extragalactic radio sources, and the International Terrestrial Reference Frame (ITRF) realized by observing stations on Earth. The proposed technique to use is the differential Very Long Baseline Interferometry (D-VLBI), connecting a space probe to a close-by quasar by alternate observations. Besides a thorough study of the method of D-VLBI, the Vienna VLBI Software VieVS (developed and maintained at the Institute of Geodesy and Geophysics of the Vienna University of Technology) will be expanded for D-VLBI applications. Investigations concerning the delay model for sources at finite distance will follow. Once implemented, simulations will help to answer the open questions of the project and finally the processing of real data will deliver the frame ties in question. The successful candidate will work in a large VLBI analysis group with many Ph.D. students and Post-Docs of different nationalities. Within the DFG Research Unit, close cooperation with scientists in Germany and Switzerland will be held. Applicants should send a CV and a letter of application, describing their research experience and interests, to Prof. Dr. Harald Schuh until November 30, 2011. Copies by email are welcome. Prof. Dr. Harald Schuh Head of the Institute and Project Leader Institute of Geodesy and Geophysics Gusshausstrasse 27-29, E128/1 1040 Vienna, Austria harald.schuh@tuwien.ac.at Assoc. Prof. Dr. Johannes Boehm Project Leader Institute of Geodesy and Geophysics Gusshausstrasse 27-29, E128/1 1040 Vienna, Austria johannes.boehm@tuwien.ac.at ************************************************************************ IERS Messages are edited and distributed by the IERS Central Bureau. If not stated otherwise, the IERS is only the distributor of the message and is not responsible for its content. To submit texts for distribution and to subscribe or unsubscribe, please write to . Archives: http://www.iers.org/Messages/ ************************************************************************