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IVS 2020 Directing Board Elections

Nominees for At-Large Positions

This page provides information about the nominees for At-Large positions on the IVS Directing Board. The nominees are listed alphabetically by their family names. The At-Large members will be elected by the IVS Directing Board.

Aletha de Witt
Aletha de Witt South African Radio Astronomy Observatory (SARAO)
Aletha de Witt is the Operations Astronomer at the HartRAO site of the South African Radio Astronomy Observatory (SARAO) in South Africa. She completed her Ph.D. in Radio Astronomy with a focus on celestial reference frames and calibrator sources for VLBI. Her research is focused on fundamental astronomy, in particular celestial reference frames. Alet is the principal investigator for some of the IVS Southern Hemisphere astrometric and geodetic VLBI sessions. Alet has been part of the ICRF-3 IAU working group. The ICRF-3 was adopted at the XXXth GA of the IAU in August 2018. One of the goals of the ICRF-3 was the extension of the ICRF to higher radio frequencies, such as K-band (22 GHz). Alet is the principal investigator of the K-band celestial reference frame project. To date, this project received more than 1300 hours of observing time on the VLBA and equal amounts of time on Southern VLBI instruments. In 2019, Alet was elected as secretary of the IAU astrometry commission A1. She is also the chair of the newly established IVS CRF Committee.

Anastasiia Girdiuk
Anastasiia Girdiuk Anastasiia Girdiuk has dealt with the VLBI technique since her studies at Saint Petersburg State University (SPBU). She received her specialization in astronomy from SPBU in 2013 and her PhD in geodesy in 2017 from Vienna University of Technology (TU Wien). Both works were dealing with different aspects of the VLBI technique. While the first study works with scheduling of the VLBI observations, the PhD thesis represents thoughtful reprocessing of the VLBI data set to evaluate the high-frequency ERP variations. In 2018, Anastasiia has joined the IVS Analysis Center at BKG. She participates actively in routine analysis and in ongoing ITRF2020 activities. Besides routine session analysis and product delivery to the IVS community, her work is also focused on establishing internal routine data processing for operational BKG activities to support vgosdb structure. In addition to the VLBI Analysis Center activities, Anastasiia is taking part in BKG's IVS Data Center operations as well, initially with the focus on all aspects related to optimal handling of vgosdb. A few months ago, Anastasiia became the head of the IVS Data Center at BKG and is working in close cooperation with other IVS Data Center representatives in order to re-establish the full mirroring process including the sessions in vgosdb. Anastasiia has gained a comprehensive experience in the complexity of Analysis and Data Center tasks. At work, her agenda along with the BKG concept is to make geodetic data and products, in particular VLBI-based data and products, well-described, efficiently provided and broadly represented among interested communities. BKG-internally, Anastasiia is also linked with the colleagues working on the establishment of an inter-technique combination, where she is focused on providing an optimal input based on VLBI data.

Phillip Haftings
Phillip Haftings Phillip Haftings is an astronomer at USNO in the Earth Orientation department's VLBI division. He has worked at the USNO Washington Correlator since 2016. Phillip has attended and given talks at the IVS TOW and DiFX developers meetings. He has performed correlation/fringing on IVS S/X Intensives, R4, CRF, and VGOS Intensive sessions, as well as some VLBA sessions. He has been instrumental in the development of back-end code and automation for the Washington Correlator. Phillip is currently working on VGOS preparation and researching methods to accelerate traditional DiFX software correlation.

Karine Le Bail
Karine Le Bail Karine Le Bail graduated in "Fundamental Astronomy, Celestial Mechanics and Geodesy" at the Paris Observatory in 2000 where she worked on the ICRF and source stability as a thesis project. She then got her PhD in Space Geodesy / DORIS at the LAREG/IGN - Paris Observatory. Her follow-up post-doc was funded by the CNES to assist the IDS Analysis coordinator which took her to the NASA Goddard Space Flight Center. After ten years in the DORIS community and the submission of a GSFC DORIS contribution to the ITRF2008, she worked for NVI, Inc. at NASA GSFC for eleven years in VLBI. She has been involved in various activities in the IVS community, as technique development, scheduling and ICRF work. Karine recently integrated into the Space Geodesy and Geodynamics group at Chalmers University of Technology as a Senior Researcher and is active for the IVS network station and the IVS analysis center at the Onsala Space Observatory.

Lucia McCallum
Lucia McCallum Lucia McCallum has been active in the IVS since 2008. After finishing her PhD on VLBI space ties at the Technical University of Vienna (Austria) she moved to Australia (University of Tasmania) in 2014 where she has now acquired a long-term position and is building up a research group for geodetic VLBI. While active with the AuScope VLBI array (planning and scheduling sessions) she has held two research fellowships from the Austrian and Australian governments. She was also appointed the secretary of the Asia-Oceania VLBI group (AOV) between 2017-2020. Lucia has a variety of publications with topics covering VLBI satellite tracking, space ties, session analysis, scheduling and dedicated observing programs. After two quiet years with parental leave, Lucia is returning to work and keen to support the IVS as a global endeavour.

Matthias Schartner
Matthias Schartner Matthias Schartner started to work with VLBI during his master studies at Technical University of Vienna. There, he was mainly working on the VLBI analysis software VieVS as well as on its scheduling and simulation capabilities. For his Ph.D., he developed a new VLBI scheduling and simulation software, called VieSched++, that is now used to schedule various IVS observing series. Together with BKG, he further established a fully automated IVS operations center that is now responsible for scheduling the INT2, INT3, INT9, AUA, T2, OHG and VGOS-B sessions, as well as providing schedules for the CRDS and CRF programs. His task within this operations center is to oversee the scheduling as well as to perform quality control. After his Ph.D., he got employment at ETH Zurich at a newly founded Space Geodesy group. There, he continues to work on VLBI scheduling and simulations with a strong emphasis on providing further automation as well as on applying artificial intelligence and machine learning algorithms to VLBI data.

Yu Takagi
Yu Takagi After obtaining his Ph.D. in Geophysics from the University of Tokyo, Yu Takagi has been working for the Geospatial Information Authority of Japan (GSI). He has been involved in the maintenance of the Japanese geodetic reference frame and, in 2020, became the chief of operations of the Tsukuba Correlator and Analysis Center. In the GSI VLBI Group he is responsible for management tasks such as funding, planning, and addressing any technical problems. He is the de facto head of the VLBI Group. Besides VLBI observations, GSI has historically contributed to the construction of the ITRF with local tie surveys, and Yu is familiar with the sophisticated survey technique. With this background, he became the representative of technology in VLBI in the Global Geodetic Observing System (GGOS) in Japan and he is a member of the IVS Observing Program Committee. Yu is now one of the key persons not only in the GSI VLBI group but also in the Japanese VLBI community.