Correlation Center

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Correlation

VLBI uses globally distributed radio telescopes to measure and accurately time tag the signals of extragalactic radio sources. The recorded signals are transferred to a central processing unit to determine the fundamental observable for geodetic VLBI, the difference in signal arrival times (delays). Since the delays are determined by the cross-correlation of the globally recorded signals, the central processing unit is commonly referred to as the correlator.

Based on a cooperation agreement from August 2022, TU Wien and the Federal Agency of Metrology and Surveying in Austria (BEV) are jointly running the Vienna Correlation Center. The correlation is carried out at the Vienna Scientific Cluster and the observational data are transferred via internet lines only.

Operationally, we are concentrating on the correlation of VGOS sessions. Additionally, we are involved in various research activities.

Further reading:

More details about our computing infrastructure and correlation tasks are provided in our bi-annual report to the International VLBI Service for Geodesy and Astrometry. They are collected in this directory.

Members of the correlation team can be contacted with correlation@tuwien.ac.at .

 

16th DiFX Users and Developers Meeting 2024 in Vienna (September 9 to 13, 2024)

Registration is open
 
The 16th DiFX Users and Developers Meeting will be held at the two locations in Vienna, Austria from September 9 to 13, 2024. The meeting will include two components. The first two days will be the DiFX Users meeting, which will be composed of talks, posters, and discussions. It will be held at the Federal Office of Metrology and Surveying (BEV). This first portion of the meeting will also include a tutorial on running DiFX. The first two days will be in a hybrid in-person/virtual format. The last three days will be the DiFX Developers workshop, which will consist of future planning, improvements, and documentation. It will be held at the Technische Universität Wien (TU Wien). The final three days will be mostly limited to in-person participation, with possible exceptions to accommodate specific interactions.
 
 
Locations
 
The meeting will take place at two locations in the center of Vienna. The first part (Monday and Tuesday) will take at the Federal Office of Metrology. The second part (Wednesday to Friday) will be held at the Technische Universität Wien (TU Wien). Both locations can be conveniently reached by public transport.
 

Location BEV:

  • Federal Office of Metrology and Surveying (BEV)
  • Address: Schiffamtsgasse 1-3, 1020 Vienna
  • Date: September 9 to 10, 2024
  • Metro stations: U2, U4

Location TU Wien

  • Technische Universität Wien (TU Wien)
  • Address: Wiedner Hauptstr. 8–10, 1040 Vienna
  • Date: September 11 to 13, 2024
  • Metro stations: U1, U4

Registration: 

  • There will be no registration fee for the meeting at both locations.
  • The meeting will be held in person, with an option to participate online as well.
  • The registration is open until August 19.

If you are interested in participating, please send the following information to correlation@tuwien.ac.at:

  1. First Name
  2. Last Name
  3. Current affiliation or organizational connection
  4. E-mail address
  5. Will you be attending in person in Vienna, or will you be joining online?
    1. In person in Vienna
    2. Online
  6. Which days will you be participating?
    1. Monday, September 9
    2. Tuesday, September 10
    3. Wednesday, September 11
    4. Thursday, September 12
    5. Friday, September 13
  7. Would you like to present a talk or poster?
    1. No, thanks. I just want to listen.
    2. Yes. I want to present a talk.
    3. Yes. I want to present a poster.
  8. If you would like to give a talk and/or poster, please provide a title, abstract, or summary (this can also be specified at a later date).
  9. Do you have any access requirements you would like us to be aware of?
  10. Feel free to leave us more comments concerning your registration.