logo gnss title_uk logo ROB
GNSS Home Royal Observatory of Belgium ROB Home
Permanent GPS network in Belgium
Permanent GPS network in Belgium
Inclusion of the permanent station in international observation networks
Download observation data
Download navigation data
Click on the station on the map to see the detailed information sheet for this station

BELGIE_bw_F (49K)
station station station station station station station station
The station JALH (Jalhay) is operational since 04/10/2006 (GPS week 1370)
and replace the station MEMB (Membach) which was active from GPS week 913 to 1172.

The Belgian 0-order GPS network (BEREF), that falls under the responsibility of the National Geographic Institute (NGI) is also based on the 4 ROB stations: Brussel, Dentergem, Dourbes and Waremme.
Inclusion of the permanent station in international observation network
The station Brussels belongs to the IGS network since 1993. The stations Dentergem, Dourbes and Waremme all belong since January 1996 to the European permanent network EUREF.
As a direct consequence, they are also included into the IERS network and their coordinates are known with cm-accuracy in the International Terrestrial Reference System. The coordinates of the stations are recomputed each year and are know as the ITRF92,ITRF93, ..., ITRF97, ITRF2000 realisations.

The last coordinates obtained in this way are known as the ITRF2000 coordinates. Their values are available on the web-site in the table that includes the coordinates of all the IERS stations.
You can find here more details about the different international reference systems (ITRS, ETRS89, WGS84).
Download observation data

The RINEX data files are available on-line for the stations Brussels, Dentergem, Dourbes and Waremme: The RINEX data are compressed. The compression is done in 2 separate steps and has to be done on the PC of the user. For this purpose the following programs need to be installed:


These programs and additional readme files are available at: ftp://epncb.oma.be/epncb/software.

Off-line data are made available in ftp://epncb.oma.be/gps_rob/data/requests after directing a request to: Dominique Mesmaker or Robert Laurent.

Download observation data
Broadcast navigation ephemerides are available in the RINEX format at ftp://epncb.oma.be/gps_rob/data/ephem.
Older ephemerides can be retrieved from the Federal Office of Karthography and Geodesy (BKG, Frankfurt, Germany) at: ftp://igs.ifag.de/IGS/obs/.
The programs to uncompress the files are available at : ftp://epncb.oma.be/epncb/software/.

In addition to the broadcast ephemerides, BKG is also making available the precise IGS satellite orbitsb in the SP3 format. The high accuracy of these precise orbits makes especially suitable for high accuracy applications.

The following file name conventions are used to denominate the broadcast and precise satellite orbits files:

The broadcast ephemerides : IFAGddd0.yyN
ddd: day of the year
yy : year
   
The precise ephemerides : IGSwwwwd.SP3 
wwww : GPS week 
d : day in GPS week (o=Sunday)


opgepast
Our server refuses access to our data if you do not have a DNS. Your internet provider or system administrator can resolve this problem. Contact C.Lippens@oma.be for more details.

If, after a few years, the scientific objectives of the ROB are achieved, the maintenance of the six stations, next to Brussels, will depend on the interest of the user community.