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in Bonn, Germany, on invitation of the Max Planck Institute for Radio Astronomy
Dates: March 29 - 31, EVGA Meeting
March 31, Analysis Workshop
LOC: Walter Alef
Axel Nothnagel
Simone Bernhart
Beate Naunheim
Hermann Sturm
Abstracts:
| Authors | Title | Abstract | Talk |
| Martin Ettl, Alexander Neidhardt, Matthias Mühlbauer, Christian Plötz, Hayo Hase, Sergio Sobarzo, Cristian Herrera, Eric Oñate, Pedro Zaror, Felipe Pedreros, Octavio Zapato | Experiences with regular remote attendance towards new observation strategies | Current VLBI observations are controlled and attended locally at the radio telescopes on the basis of pre-scheduled session files. Operations have to deal with system specific station commands and individual setup procedures. Either the scheduler nor the correlator or analyst get real-time feedback about system parameter during a session. Changes in schedules after the start of a session by remote are impossible or at least quite difficult. For future scientific approaches a more flexible mechanism would optimize the usage of resources at the sites. Therefore shared-observation control between world-wide telescopes, remote attendance/control as well as completely unattended-observations could be useful, besides the classic way to run VLBI observations. To reach these goals the Geodetic Observatory Wettzell in cooperation with the Max-Planck-Institute for Radio Astronomy (Bonn) develop a software extension to the existing NASA Field System for remote control. Meanwhile remote control possibilities are regularly used and established at Wettzell. Based on this technology the completely remote attended and controlled geodetic VLBI session between Wettzell, Germany and Concepción, Chile were successfully performed over 24 hours. Also the intensives on weekends are regularly operated by remote. These first tests are extraordinary valuable to gather information about the differences between VLBI systems and to measure the performance of internet connections and automatic connection re-establishments. In addition, future developments for an authentication and user role management will be realized within the upcoming NEXPRES project. | |
| Ettl, Martin | Concepts for continuous quality monitoring and station remote control | Poster: Experiences with regular remote attendance towards new observation strategies | X |
| Neidhardt, Alexander | New observation strategies with e-control | Poster: VLBI2010 – The TWIN radio telescope project at Wettzell, Germany | X |
| G. Kronschnabl, Hayo Hase, T. Klügel, A. Neidhardt, K. Pausch, W. Göldi | VLBI2010 – The TWIN radio telescope project at Wettzell, Germany | The Twin Telescope Wettzell Project is funded to be executed during the period of 2008−2011. The design of the TTW was based on the VLBI2010 vision of the corresponding IVS Working Group. In the first two project years the design passed the simulations with respect to its specifications and was approved for production. At the Geodetic Observatory Wettzell a thorough soil analysis was made in order to define the sites for the towers of the new radio telescopes. Meanwhile the construction work has begun and acceptance tests of several telescope parts, e.g. azimuth bearings, took place. The new radio telescopes are almost completely assembled and the progress is quite on time. In parallel to the construction work at the Wettzell site, the design work and ordering of the different feed options are under progress. |
