Name: 10th International VLBI Technology Workshop (IVTW)
Start: 2025-10-21T13:00:00+02:00
End: 2025-10-25T22:45:00+02:00
Location: Veras gräsmatta, Chalmers, Gothenburg

10th International VLBI Technology Workshop (IVTW)

from Tuesday 21 October 2025 (13:00) to Saturday 25 October 2025 (22:45)

Monday 20 October 2025
Tuesday 21 October 2025

14:00 Visit to GARD
Visit to GARD
14:00 - 17:00

17:00 Ice breaker
Ice breaker
17:00 - 20:00
Wednesday 22 October 2025

08:50 Registration
Registration
08:50 - 09:30
09:30 1a
1a
09:30 - 10:40
Contributions

09:30 Welcome - John Conway (chalmers.se)

09:40 VLBI with the Square Kilometre Array Observatory - Jun Yang (chalmers.se)

10:00 VLBI observations with the SKA-Mid at 12/15 GHz - Jun Yang (Onsala Space Observatory)

10:20 Improved UV Coverage for Southern-Hemisphere VLBI through the SKAMPI telescope - Jompoj Wongphechauxsorn (JMU)
10:40 Coffee break
Coffee break
10:40 - 11:05
11:05 1b
1b
11:05 - 12:05
Contributions

11:05 LOFAR: VLBI at the lowest frequencies - Ilse van Bemmel (ASTRON)

11:25 Orchestrating low-frequency VLBI at the scale of LOFAR - Frits Sweijen (Durham University)

11:45 The deepest radio image with the full European LOFAR - Jurjen de Jong (Leiden Observatory & ASTRON)
12:05 Lunch
Lunch
12:05 - 13:20
13:20 2a
2a
13:20 - 14:20
Contributions

13:20 Demonstrating Low-Frequency VLBI in the Southern Hemisphere for SKA-Low - Chris Phillips (CSIRO)

13:40 A new VLBI Station at Bosscha Observatory - Taufiq Hidayat (Department of Astronomy and Bosscha Observatory, Institut Teknologi Bandung, Indonesia)

14:00 The Ghana Radio Astronomy Observatory: Technical Progress and VLBI Participation - Emmanuel Proven-Adzri (Ghana Space Science and Technology Institute)
14:20 Leg stretch
Leg stretch
14:20 - 14:30
14:30 2b
2b
14:30 - 15:30
Contributions

14:30 Using techniques of radio astronomy for a sustainable development and Science - Nectaria Gizani (Hellenic Open University)

14:50 The Wetterstein Millimeter Telescope - jompoj wongphechauxsorn (JMU)

15:10 RADIOBLOCKS - Arpad Szomoru (JIVE)
15:30 Coffee break
Coffee break
15:30 - 15:55
15:55 2c
2c
15:55 - 16:55
Contributions

15:55 Radio Blocks for a VLBI GPU correlator - Mark Kettenis (Joint Institute for VLBI ERIC)

16:15 Deep dive into the ATCA "BIGCAT" GPU correlator - Chris Phillips (CSIRO)

16:35 The correlation terminal for the Antarctic submillimeter interferometer - Yajun Wu (Shanghai Astronomical Observatory, CAS)
16:55 Discussion
Discussion
16:55 - 17:25
Thursday 23 October 2025
09:00 3a
3a
09:00 - 10:00
Contributions

09:00 Developments at Wettzell Observatory - Alexander Neidhardt (FESG - Technical University of Munich)

09:20 VCAT: A python module for VLBI data analysis - Anne-Kathrin Baczko (chalmers.se)

09:40 VIPCALs: A fully-automated calibration pipeline for VLBI data - Diego Alvarez-Ortega (Institute of Astrophysics - FORTH)
10:00 Coffee break
Coffee break
10:00 - 10:25
10:25 3b
3b
10:25 - 11:25
Contributions

10:25 Ambient L-band receiver development at ASTRON - Paulus Kruger (ASTRON)

10:45 Modernizing the VLBI data-reduction software stack - Mark Kettenis (Joint Institute for VLBI ERIC)

11:05 Multi-dimensional image reconstruction using adaptive correlated noise model - Venkatessh Ramakrishnan (Tampere University)
11:25 Leg stretch
Leg stretch
11:25 - 11:35
11:35 3c
3c
11:35 - 11:55
Contributions

11:35 The Synoptic Wide-field EVN–eMERLIN Public Survey (SWEEPS) - Overview and Results - Célestin Herbé-George (Kapteyn Astronomical Institute/University of Pretoria)
11:55
11:55 - 12:15
Contributions

11:55 New VGOS Frequency Sequences Test Observations - Frederic Jaron (TU Wien) Simone Bernhart

11:58 Single station analyses of GPS data from the AuScope VLBI array in preparation to GENESIS mission - Yuting Cheng (Royal Observatory of Belgium)

12:01 Waveform comparison for single station operation with the GENESIS VLBI transmitter - Thibault Deleu (Royal Observatory of Belgium)

12:04 Local-tie Experiments of Chinese VLBI Stations - Xuan He (Shanghai Astronomical Observatory, Chinese Academy of Sciences)

12:07 Implementation of VLBI simulations for Earth orbiting satellites in C5++ - Hakan Sert (Royal Observatory of Belgium) Özgür Karatekin (Royal Observatory of Belgium)

12:10 LOFAR-VLBI: Insights into High-Energy Emissions from Low-Frequency Radio Observations - Hrishikesh Shetgaonkar
12:15 Lunch
Lunch
12:15 - 13:25
13:25 4a
4a
13:25 - 14:25
Contributions

13:25 Preparing for VLBI with signals of ESA’s Genesis satellite - Rüdiger Haas (Chalmers University of Technology)

13:45 Signal-to-Noise and Link Budget Analysis for the GENESIS VLBI Transmitter - Ozgur Karatekin (Royal Observatory of Belgium)

14:05 Removing source structure in DiFX visibility data - Frederic Jaron (TU Wien)
14:25 Leg stretch
Leg stretch
14:25 - 14:35
14:35 4b
4b
14:35 - 15:35
Contributions

14:35 Progress of Full Automated Correlation Process for VGOS-INT-B/C at Tsukuba Correlator/Analysis Center - Kaho Hashimoto (Geospatial Information Authority of Japan)

14:55 Multi-twin flux density monitoring at VGOS frequencies - Alva Kinman (chalmers.se)

15:15 A new method to derive a VGOS flux density source catalogue based on real observations and theoretical derivations - Shilpi Chakraborty (Indian Institute of Technology Kanpur (IITK), India)
15:35 Coffee break
Coffee break
15:35 - 16:00
16:00 4c
4c
16:00 - 16:40
Contributions

16:00 Synchronized microwave radiometer and VGOS observations - Peng Feng (chalmers.se)

16:20 Investigating the Impact of GNSS Orbit and Clock Product Types in Integrated VGOS and GNSS Solutions for VLBI Intensive Sessions - Rimsky Wolfs (Chalmers University of Technology)
16:40 Discussion
Discussion
16:40 - 17:10

18:45 Conference dinner
Conference dinner
18:45 - 23:00
Friday 24 October 2025
09:00 5a
5a
09:00 - 10:05
Contributions

09:00 AAC Omnisys to deliver the Band 1 feeds for the SKA-mid telescope for the Square Kilometre Array Observatory (SKAO) - Olivier Auriacombe (AAC Omnisys)

09:25 Compact Downconverters for VGOS and BRAND receivers - Andrea Martínez Parra (Observatorio de Yebes, IGN)

09:45 OSO 20m Tri-Band Receiver Project - Leif Helldner (chalmers.se) Magnus Dahlgren (Onsala Space Observatory)
10:05 Coffe break
Coffe break
10:05 - 10:30
10:30 5b
5b
10:30 - 11:25
Contributions

10:30 Redundant National Fiber Distribution of Time and Frequency - Sven-Christian Ebenhag (NETNOD AB)

10:55 State of the art of optical communications - Magnus Karlsson (Chalmers)
11:25 Leg stretch
Leg stretch
11:25 - 11:35
11:35 5c
5c
11:35 - 12:15
Contributions

11:35 SHARP and Space Array initiatives - Eric Villard (European Southern Observatory)

11:55 Time-Resolving Sgr A* at 86 GHz via Low-Earth Orbit VLBI - Amelia Frickey (Brown University) Graham Neely (Brown University) Ref Bari (Brown University)
12:15 Lunch
Lunch
12:15 - 13:25
13:25 6a
6a
13:25 - 14:30
Contributions

13:25 Progress of the Chinese VLBI Network from Earth to Space - Fengchun Shu (Shanghai Astronomical Observatory, Chinese Academy of Sciences)

13:45 VLBI Transmitter preliminary performance and link budget estimates for NovaMoon - Ozgur Karatekin (Royal Observatory of Belgium)

14:05 Industrial return from large-scale research facilities - Paul Häyhänen (Big Science Sweden) Oscar Isoz (Big Science Sweden)
14:30 Leg stretch
Leg stretch
14:30 - 14:40
14:40 6b
6b
14:40 - 15:25
Contributions

14:40 RFI Measurements for SKAO Equipment – Challenges and Practice - Kristian Karlsson (RISE)

15:05 Monitoring of Unwanted Electromagnetic Radiation at Onsala Space Observatory - Lim Chin Chuan (Onsala Space Observatory)
15:25 Coffee break
Coffee break
15:25 - 15:50
15:50 6c
6c
15:50 - 17:00
Contributions

15:50 MIT Haystack Digital Backend Updates - Chester Ruszczyk (MIT Haystack Obs.)

16:10 The Effelsberg Direct Digitization Triband Receiver - Niclas Esser

16:30 Summary - Marjolein Verkouter (Joint Institute for VLBI ERIC)
Saturday 25 October 2025

08:45 Visit to the Onsala Space Observatory
Visit to the Onsala Space Observatory
08:45 - 14:00

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