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The Vienna VLBI Software (VieVS) is a new state of the art VLBI analysis software written in MATLAB. It is developed at the Department of Geodesy and Geoinformation, Vienna University of Technology.

Obtaining VieVS

Registration: If you want to have access to VieVS, take a look at the requirements for external users (terms.pdf) and send a letter to Johannes Böhm (signed by the head of your institution) where you describe for which purposes you would like to have access to VieVS. You can use the template.

Installation: Log in to using sftp (you will get the username and password once you are registred), and follow the instructions in the INSTALL.txt file. Or just download the whole VieVS directory (or subdirectories when updating).

Starting VieVS: Start vievs.m in the WORK directory. Have fun!

Publications about VieVS:

The current reference for VieVS is:

J. Böhm, S. Böhm, T. Nilsson, A. Pany, L. Plank, H. Spicakova, K. Teke, H. Schuh. The new Vienna VLBI Software VieVS, in Proceedings of IAG Scientific Assembly 2009, International Association of Geodesy Symposia Series Vol. 136, edited by S. Kenyon, M. C. Pacino, and U. Marti, oo 1007-1011, 2012, doi: 10.1007/978-3-642-20338-1_126

For other publications and presentations about VieVS, see the publications page.


The VieVS documentation (draft) can be found here. More information about special parts can be found in the documents in the DOC directory and in the presentations from the third VieVS user Workshop.

VieVS User Workshop:

The first VieVS user Workshop was held 7-9 September, 2010, at TU Vienna. The presentations from the Workshop can be downloaded from the Workshop homepage.
The second VieVS User Workshop was held on September 14-16, 2011.
The third VieVS User Workshop was held on September 11-13, 2012.

Comparison Campaign:

A Comparison Campaign was started with the goal to compare different VLBI analysis software packages on the basis of the computed delay and its partial derivatives. Find details at the the DeDeCC website.

VieTRF10a and VieCRF10a:

The Vienna Terrestrial Reference Frame (VieTRF10a) contains positions, and velocities assuming linear motion of stations and the Vienna Celestial Reference Frame (VieCRF10a) contains the positions of radio sources. They were estimated simultaneously in a common global adjustment by the software VieVS using VLBI observations since 1984. More details are provided in this document.
Reference: Hana Spicakova, J. Böhm, L. Plank, T. Nilsson, H. Schuh. Atmospheric Effects on VLBI-derived Terrestrial and Celestial Reference Frames. International Association of Geodesy Symposia. Editors Chris Rizos, Pascal Willis. ISSN: 0939-9585. (submitted) (IUGG Melbourne 28 June - 07 July, 2011)

Results obtained using VieVS

DUT1 for last 30 days estimated using VieVS


We would like to thank the Austrian Science Fund (FWF) for supporting this work with the projects SCHED2010 (P21049-N14), Integrated VLBI (P23143-N21), and VLBI-ART (P24187-N21).

Last update: 5-January-2013, Sigrid Böhm