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- ECEF abstract "ECEF ("Earth-Centered, Earth-Fixed"), also known as ECR ("Earth Centered Rotational"), is a geographic coordinate system and Cartesian coordinate system, and is sometimes known as a "conventional terrestrial" system. It represents positions as an X, Y, and Z coordinate. The point (0,0,0) is defined as the center of mass of the Earth, hence the name Earth-Centered. Its axes are aligned with the International Reference Pole (IRP) and International Reference Meridian (IRM) that are fixed with respect to the surface of the Earth, hence the name Earth-Fixed. This term can cause confusion since the Earth does not rotate about the z-axis (unlike an inertial system such as ECI), and is therefore alternatively called ECR.The z-axis is pointing towards the north but it does not coincide exactly with the instantaneous Earth rotational axis. The slight "wobbling" of the rotational axis is known as polar motion. The x-axis intersects the sphere of the Earth at 0° latitude (Equator) and 0° longitude (Greenwich). This means that ECEF rotates with the earth and therefore, coordinates of a point fixed on the surface of the earth do not change. Conversion from a WGS84 Datum to ECEF can be used as an intermediate step in converting velocities to the North East Down coordinate system.".
- ECEF thumbnail ECEF.svg?width=300.
- ECEF wikiPageExternalLink geographiclib.sourceforge.net.
- ECEF wikiPageExternalLink wgs-84-2.
- ECEF wikiPageExternalLink datum.html.
- ECEF wikiPageExternalLink GPS.G1-X-00006.pdf.
- ECEF wikiPageExternalLink GPS_ECEF_Datum_transformation.htm.
- ECEF wikiPageID "5644032".
- ECEF wikiPageLength "3069".
- ECEF wikiPageOutDegree "19".
- ECEF wikiPageRevisionID "673101265".
- ECEF wikiPageWikiLink Cartesian_coordinate.
- ECEF wikiPageWikiLink Cartesian_coordinate_system.
- ECEF wikiPageWikiLink Category:Global_Positioning_System.
- ECEF wikiPageWikiLink Earth-centered_inertial.
- ECEF wikiPageWikiLink Earth_Centered_Inertial.
- ECEF wikiPageWikiLink Equator.
- ECEF wikiPageWikiLink Geodetic_datum.
- ECEF wikiPageWikiLink Geodetic_system.
- ECEF wikiPageWikiLink Geographic_coordinate_system.
- ECEF wikiPageWikiLink IERS_Reference_Meridian.
- ECEF wikiPageWikiLink International_Reference_Meridian.
- ECEF wikiPageWikiLink International_Reference_Pole.
- ECEF wikiPageWikiLink International_Terrestrial_Reference_System.
- ECEF wikiPageWikiLink Latitude.
- ECEF wikiPageWikiLink Longitude.
- ECEF wikiPageWikiLink North_East_Down.
- ECEF wikiPageWikiLink North_east_down.
- ECEF wikiPageWikiLink Orbital_state_vectors.
- ECEF wikiPageWikiLink Polar_motion.
- ECEF wikiPageWikiLink Prime_Meridian.
- ECEF wikiPageWikiLink Prime_meridian.
- ECEF wikiPageWikiLink WGS84.
- ECEF wikiPageWikiLink World_Geodetic_System.
- ECEF wikiPageWikiLink File:ECEF.svg.
- ECEF wikiPageWikiLinkText "ECEF".
- ECEF wikiPageWikiLinkText "Earth Centred Earth Fixed".
- ECEF wikiPageWikiLinkText "Earth centered earth fixed".
- ECEF wikiPageWikiLinkText "Earth-Centered, Earth-Fixed".
- ECEF wikiPageWikiLinkText "Earth-centered, Earth-fixed".
- ECEF wikiPageWikiLinkText "Earth-centred Earth-fixed".
- ECEF wikiPageWikiLinkText "earth-centered coordinates".
- ECEF wikiPageWikiLinkText "earth-centered earth-fixed".
- ECEF hasPhotoCollection ECEF.
- ECEF wikiPageUsesTemplate Template:Reflist.
- ECEF subject Category:Global_Positioning_System.
- ECEF type Instrument.
- ECEF type Instrument.
- ECEF comment "ECEF ("Earth-Centered, Earth-Fixed"), also known as ECR ("Earth Centered Rotational"), is a geographic coordinate system and Cartesian coordinate system, and is sometimes known as a "conventional terrestrial" system. It represents positions as an X, Y, and Z coordinate. The point (0,0,0) is defined as the center of mass of the Earth, hence the name Earth-Centered.".
- ECEF label "ECEF".
- ECEF sameAs ECEF.
- ECEF sameAs Geozentrisches_Koordinatensystem.
- ECEF sameAs ECEF.
- ECEF sameAs ECEF.
- ECEF sameAs ECEF.
- ECEF sameAs Geozentrescht_Koordinatesystem.
- ECEF sameAs m.0dxypd.
- ECEF sameAs Q743590.
- ECEF sameAs Q743590.
- ECEF sameAs 地心地固坐标系.
- ECEF wasDerivedFrom ECEF?oldid=673101265.
- ECEF depiction ECEF.svg.
- ECEF isPrimaryTopicOf ECEF.