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- Fundamental_station abstract "A fundamental point (in German Fundamentalpunkt) is the geometric origin of a geodetic network and defines the geodetic datum of a national survey.Some fundamental stations are an astronomical or satellite geodetic observatory. In any case, the geographic latitude and longitude of the station is precisely determined by methods of astrogeodesy and is chosen as ellipsoidal latitude and longitude at the Earth ellipsoid which is used to calculate the coordinates of the whole network.Also, precise azimuths to one or two network points are observed, and are taken over as orientated directions of these network lines. By these procedure, the polar axis of the reference ellipsoid becomes parallel to the Earth rotation axis, and therefore the vertical deflection of the fundamental point is zero.The term Fundamental station is used for special observatories which combine several space positioning techniques like VLBI, Satellite Laser Ranging, GPS, Glonass etc. They are the basis of Plate tectonic analyses which allow the monitoring of continental drift rates with accuracies of mm/year.Important fundamental stations in Europe are Grasse, central France Graz-Lustbühel (Austria) Malvern, England (?) Onsala (large Radio telescope), Sweden Wettzell (20m Radio telescope) in the Bayerischer Wald, Germany Zimmerwald near Berne, Switzerland.Worldwide about 30 fundamental stations are existing: about 5 in the USA and in Commonwealth of Independent States countries, 2-3 in South America, Africa, Eastern Asia, Australia and Antarctica.The basic coordinate system is the ITRF reference frame, which is related to the ICRS celestial inertial system by means of very precise Earth Orientation Parameters (EOPs), containing polar coordinates, Nutation- and Earth rotation parameters. The ITRF data set is revised every 3–5 years, the actual accuracy is in the millimeter area. The ITCS is based on about 500 Quasars in the far universe, and on some 3000 fundamental stars of our galaxy. The actual coordinates of the latter (FK6) were published in 2000 by the Astronomisches Rechen-Institut (ARI) in Heidelberg.".
- Fundamental_station wikiPageExternalLink gifframe.htm.
- Fundamental_station wikiPageExternalLink www.wettzell.ifag.de.
- Fundamental_station wikiPageExternalLink FGS_wettzell.html.
- Fundamental_station wikiPageID "16147774".
- Fundamental_station wikiPageLength "2985".
- Fundamental_station wikiPageOutDegree "50".
- Fundamental_station wikiPageRevisionID "545177068".
- Fundamental_station wikiPageWikiLink Astrogeodesy.
- Fundamental_station wikiPageWikiLink Astronomical_Calculation_Institute_(Heidelberg_University).
- Fundamental_station wikiPageWikiLink Astronomisches_Rechen-Institut.
- Fundamental_station wikiPageWikiLink Austria.
- Fundamental_station wikiPageWikiLink Azimuth.
- Fundamental_station wikiPageWikiLink Catalogues_of_Fundamental_Stars.
- Fundamental_station wikiPageWikiLink Category:Astrometry.
- Fundamental_station wikiPageWikiLink Category:Geodesy.
- Fundamental_station wikiPageWikiLink Commonwealth_of_Independent_States.
- Fundamental_station wikiPageWikiLink Continental_drift.
- Fundamental_station wikiPageWikiLink Coordinate_system.
- Fundamental_station wikiPageWikiLink Datum_(geodesy).
- Fundamental_station wikiPageWikiLink Direction_(geometry).
- Fundamental_station wikiPageWikiLink Earth_Orientation_Parameters.
- Fundamental_station wikiPageWikiLink Earth_ellipsoid.
- Fundamental_station wikiPageWikiLink Earth_orientation_parameters.
- Fundamental_station wikiPageWikiLink Earth_rotation.
- Fundamental_station wikiPageWikiLink Earths_rotation.
- Fundamental_station wikiPageWikiLink Ellipsoid.
- Fundamental_station wikiPageWikiLink Europe.
- Fundamental_station wikiPageWikiLink FK6.
- Fundamental_station wikiPageWikiLink France.
- Fundamental_station wikiPageWikiLink Fundamental_star.
- Fundamental_station wikiPageWikiLink GLONASS.
- Fundamental_station wikiPageWikiLink GPS.
- Fundamental_station wikiPageWikiLink Galaxy.
- Fundamental_station wikiPageWikiLink Geodetic_astronomy.
- Fundamental_station wikiPageWikiLink Geodetic_datum.
- Fundamental_station wikiPageWikiLink Geodetic_network.
- Fundamental_station wikiPageWikiLink Geographic_latitude.
- Fundamental_station wikiPageWikiLink Germany.
- Fundamental_station wikiPageWikiLink Global_Positioning_System.
- Fundamental_station wikiPageWikiLink Glonass.
- Fundamental_station wikiPageWikiLink Grasse.
- Fundamental_station wikiPageWikiLink Graz.
- Fundamental_station wikiPageWikiLink Heidelberg.
- Fundamental_station wikiPageWikiLink Inertial_frame_of_reference.
- Fundamental_station wikiPageWikiLink Inertial_system.
- Fundamental_station wikiPageWikiLink International_Celestial_Reference_System.
- Fundamental_station wikiPageWikiLink International_Terrestrial_Reference_System.
- Fundamental_station wikiPageWikiLink Latitude.
- Fundamental_station wikiPageWikiLink List_of_minor_planets:_38001–39000.
- Fundamental_station wikiPageWikiLink Longitude.
- Fundamental_station wikiPageWikiLink Malvern,_Worcestershire.
- Fundamental_station wikiPageWikiLink National_mapping_agency.
- Fundamental_station wikiPageWikiLink National_survey.
- Fundamental_station wikiPageWikiLink Nutation.
- Fundamental_station wikiPageWikiLink Observatory.
- Fundamental_station wikiPageWikiLink Onsala.
- Fundamental_station wikiPageWikiLink Plate_tectonic.
- Fundamental_station wikiPageWikiLink Plate_tectonics.
- Fundamental_station wikiPageWikiLink Polar_coordinate.
- Fundamental_station wikiPageWikiLink Polar_coordinate_system.
- Fundamental_station wikiPageWikiLink Quasar.
- Fundamental_station wikiPageWikiLink Radio_telescope.
- Fundamental_station wikiPageWikiLink Satellite_laser_ranging.
- Fundamental_station wikiPageWikiLink Space.
- Fundamental_station wikiPageWikiLink Switzerland.
- Fundamental_station wikiPageWikiLink USA.
- Fundamental_station wikiPageWikiLink United_States.
- Fundamental_station wikiPageWikiLink VLBI.
- Fundamental_station wikiPageWikiLink Vertical_deflection.
- Fundamental_station wikiPageWikiLink Very-long-baseline_interferometry.
- Fundamental_station wikiPageWikiLink Wettzell.
- Fundamental_station wikiPageWikiLink Zimmerwald.
- Fundamental_station wikiPageWikiLinkText "Fundamental station".
- Fundamental_station wikiPageWikiLinkText "fundamental station".
- Fundamental_station hasPhotoCollection Fundamental_station.
- Fundamental_station wikiPageUsesTemplate Template:Fact.
- Fundamental_station wikiPageUsesTemplate Template:No_footnotes.
- Fundamental_station subject Category:Astrometry.
- Fundamental_station subject Category:Geodesy.
- Fundamental_station hypernym Origin.
- Fundamental_station type Article.
- Fundamental_station type GivenName.
- Fundamental_station type Article.
- Fundamental_station type Geophysic.
- Fundamental_station type Sub-discipline.
- Fundamental_station comment "A fundamental point (in German Fundamentalpunkt) is the geometric origin of a geodetic network and defines the geodetic datum of a national survey.Some fundamental stations are an astronomical or satellite geodetic observatory.".
- Fundamental_station label "Fundamental station".
- Fundamental_station sameAs Fundamentalstation.
- Fundamental_station sameAs m.03wb8y_.
- Fundamental_station sameAs Q1474132.
- Fundamental_station sameAs Q1474132.
- Fundamental_station wasDerivedFrom Fundamental_station?oldid=545177068.
- Fundamental_station isPrimaryTopicOf Fundamental_station.