C.1 GPS/Glonass/Galileo Information and Data

U.S. Coast Guard Navigation Center (GPS NANU, GPS Almanac, FRP, and others):

http://www.navcen.uscg.gov

U.S. Naval Observatory (GPS timing data and information):

http://tycho.usno.navy.mil/gps_datafiles.html

National Geospatial-Intelligence Agency:

www.nga.mil

GLONASS information center:

http://www.glonass-center.ru

Russian Space Science Internet:

http://www.rssi.ru

European Space Agency (Galileo and EGNOS information):

http://www.esa.int/esaCP/index.html

WAAS information:

http://gps.faa.gov/Programs/WAAS/waas.htm

Canadian Wide-Area DGPS service:

http://www.cdgps.com/e/index.htm

Radio Technical Commission for Maritime Services:

http://www.rtcm.org

National Marine Electronics Association:

http://www.nmea.org

GPS World magazine:

http://www.gpsworld.com

U.S. Institute of Navigation (GNSS proceedings):

http://www.ion.org

IEEE publications:

http://ieeexplore.ieee.org

Navtech Seminars and GPS Supply:

http://www.navtechgps.com

IGS (formerly the International GPS Service):

http://igscb.jpl.nasa.gov

International Terrestrial Reference Frame:

http://itrf.ensg.ign.fr

The International Earth Rotation and Reference Systems Service:

http://www.iers.org

Canadian Spatial Reference System of Natural Resources Canada:

http://www.geod.nrcan.gc.ca/index_e.php

Canadian Active Control System Products:

http://www.geod.nrcan.gc.ca/network_a/active_e.php

Precise Point Positioning service:

http://www.geod.nrcan.gc.ca/ppp_e.php

National Transformation (NTv2) Computation:

http://www.geod.nrcan.gc.ca/apps/ntv2/index_e.php

Jet Propulsion Laboratory GPS Satellite Performance:

http://milhouse.jpl.nasa.gov/eng/eng.sat.html

U.S. National Geodetic Survey:

http://www.ngs.noaa.gov

U.S. Continuously Operating Reference Station (CORS data):

http://www.ngs.noaa.gov/CORS

University Navstar Consortium (UNAVCO data and service):

http://www.unavco.org

EUREF Permanent GPS Network:

http://www.epncb.oma.be/euref_IP

C.2 Some GPS Manufacturers

NovAtel (GPS receivers and integrated systems):

http://www.novatel.ca

Thales Navigation (Ashtech precision products):

http://products.thalesnavigation.com/en

Trimble Navigation:

http://www.trimble.com

Leica Geosystems:

http://www.leica-geosystems.com

SOKKIA Corporation:

http://www.sokkia.com

Applanix Corporation (integrated systems):

http://www.applanix.com

Pacific Crest Corporation (radio link systems):

http://www.paccrst.com