Krzysztof Sośnica (

Radosław Zajdel (

Grzegorz Bury (

IGG GNSS&Meteo Working Group

How to cite

If you use GOVUS please cite:

A New Online Service for the Validation of Multi-GNSS Orbits Using SLR,
Zajdel, R.; Sosnica, K.; Bury, G.
Remote Sens. 2017, 9(10), 1049.


Validation of Galileo orbits using SLR with a focus on satellites launched into incorrect orbital planes,
Sosnica, K.; Prange, L.; Kazmierski, K.; Bury, G.; Drozdzewski, M.; Zajdel, R.; Hadas, T.
J Geod (2017).

Springer Link

Host institution

Institute of Geodesy and Geoinformatics
Wroclaw University of Environmental and Life Sciences (WUELS)
tel. +48 71 3205683
fax +48 71 3205617
Grunwaldzka 53
50-357 Wroclaw


International Laser Ranging Service (ILRS) and all worldwide SLR stations are acknowledged for providing high-accuracy SLR data.

Center for Orbit Determination in Europe (CODE) hosted by the Astronomical Institute of the University of Bern (AIUB) are acknowledged for providing Bernese GNSS Software) and MGEX orbits).

International GNSS Service (IGS) is acknowledged for initiating the multi-GNSS experiment (MGEX)

Prof. Dr. Toshimichi Otsubo from the Hitotsubashi University is acknowledged for his valuable remarks and suggestions.

Financial support

This work was supported by the Foundation for Polish Science (FNP) and Polish National Research Center (NCN, grant no. UMO-2015/17/B/ST10/03108).

This work was performed in the framework of activities of the International Association of Geodesy (IAG) Joint Study Group (joint with ICCT) JSG 0.14 "Fusion of multi-technique geodetic data".


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Explore the database using GOVUS SQL Explorer

Date Description
26/05/2017 Reprocessing of all residuals from 2017 with station coordinates change from SLRF2008 to SLRF2014
26/05/2017 Changed reference frame of station coordinates from SLRF2008 to SLRF2014 for all new operational products (residuals and reports)
26/05/2017 New plot ! SLR residuals as a function of the Sun elevation β and relative Sun-satellite latitude ∆u LINK
26/07/2017 New plot ! SLR residuals as a function of local time of measurementLINK
01/08/2017 New tools ! SVN2PRN, PRN2SVN and CONSTELLATION (available from "TOOLS" tab in the main menu)LINK
25/08/2017 Change of the SLR validation parameters in orbit model (compatible with CODE): antenna thrust and albedo (GLONASS, Galileo, QZSS). Results visible from the GPS week 1961 (218 doy, 6.08.2017) LINK
05/09/2017 New option ! Discontinuity window for GNSS tracking in Station Stats LINK
24/10/2017 Changed reference frame of station coordinates from SLRF2014 (ver. 170605) to SLRF2014 (ver. 171024) for all new operational products (residuals and reports) FTP CDDIS
10/10/2017 New satellites in database SVN:852,502,503

GOVUS™ 2017