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6. Regional integration of long-term national dense GNSS network solutions

Author

Kenyeres, Ambrus, Bellet, J. G., Bruyninx, C., Caporali, A., de Doncker, F., Droscak, B., Duret, A., Franke, P., Georgiev, I., Bingley, R., Huisman, L., Jivall, L., Khoda, O., Kollo, K., Kurt, A. I., Lahtinen, S., Legrand, J., Magyar, B., Mesmaker, D., Morozova, K., Nágl, J., Özdemir, S., Papanikolaou, X., Parseliunas, E., Stangl, G., Ryczywolski, M., Tangen, O. B., Valdes, M., Zurutuza, J., and Weber, M.

Published
2019
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7. Analysis of GNSS Observations (GPS Weeks 1934–2105) for the Propagation of the IGS14 Reference Frame on the Territory of Ukraine.

Author

Khoda, O.

Subjects
*GLOBAL Positioning System, *SERVER farms (Computer network management), *ASTRONOMICAL observatories
Abstract

From January 29, 2017 to May 16, 2020 (GPS weeks 1934–2105) all products of the International GNSS Service (IGS)–precise ephemerides of GPS and GLONASS satellites, coordinates and velocities of permanent GNSS stations, etc.–were based on the IGS14 reference frame, the first IGS realization of the release of the International Terrestrial Reference Frame ITRF2014. Observations of GNSS satellites at permanent stations located in Ukraine and in the Eastern Europe for this period were processed in the GNSS Data Analysis Centre of the Main Astronomical Observatory NAS of Ukraine (MAO). The processing was carried out with the Bernese GNSS Software ver. 5.2 according to the requirements of the EUREF Permanent GNSS Network (EPN), that were relevant at that time. In total, observations on 277 GNSS stations, including 205 Ukrainian stations belonging to the following operators of GNSS networks: MAO NAS of Ukraine, StateGeoCadastre of Ukraine (UPN GNSS), NU Lviv Polytechnic (GeoTerrace), PJSC System Solutions (System.NET), TNT TPI company (TNT TPI GNSS Network), Navigation and Geodetic Center (NGC.net), UA-EUPOS/ZAKPOS, E.P.S. LLC, Coordinate navigation maintenance system of Ukraine (NET.Spacecenter), Kiev Institute of Land Relations (KyivPOS), KMC LLC, were processed. The IGS14 reference frame was realized by applying No-Net-Translation conditions on the coordinates of the EPN Class A stations from the EPN C2100 catalogue. As result, the stations' coordinates in the IGS14 reference frame and the zenith tropospheric delays for all stations were estimated. The mean repeatabilities for components of GNSS stations' coordinates for all weeks (the characteristics of the precision of the obtained daily and weekly solutions) are in the following ranges: for the northern and eastern components – from 0.6 to 1.4 mm (average values are 0.93 and 1.00 mm respectively) with outliers for the eastern component of 2.02 and 1.55 mm for GPS weeks 2085 and 2091 respectively, for height component – from 2.0 to 5.5 mm (average value is 3.51 mm). [ABSTRACT FROM AUTHOR]

Published
2023
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17. International GPS Service : 2001-2002 technical reports

Author

Feltens, J, Ray, J, Tregoning, P, Simek, J, Kostelecky, J, Woppelmann, G, Khoda, O, Garcia, C, Wonnakott, R, Schone, T, Slater, J, Boomkamp, H, Gendt, G, Sherwood, R, Beavan, J, Stowers, D, Moore, A, Combrinck, L, Habrich, H, Bock, Y, Gaulue, E, Noll, C, Drewes, H, Seemueller, W, Yamagiwa, A, Luton, G, Bruyninx, C, Hering, T, Nurutdinov, K, Rohde, J, Fang, P, Tetreault, P, Kass, W, Heflin, M, Dow, J. M, Hugentobler, U, Altamimi, Z, Ferland, R, Weber, R, Neilan, R, and Reigber, C

Abstract

Applications of the Global Positioning System (GPS) to Earth Science are numerous. The International GPS Service (IGS), a federation of government agencies and universities, plays an increasingly critical role in support of GPS-related research and engineering activities. Contributions from the IGS Governing Board and Central Bureau, analysis and data centers, station operators, and others constitute the 2001 / 2002 Technical Reports.

Published
2004

18. Present day geokinematics of central Europe

Author

Caporali, A., Zurutuza, J., Bertocco, M., Cenni, N., Ischenko, M., Khoda, O., Becker, M., Stangl, G., Brockmann, E., Kenyeres, A., and Lidberg, M.

Published
2018

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