GRS80
E859784
GRS80 is a geodetic reference ellipsoid defined in 1980 that serves as a standard mathematical model of the Earth's shape for modern mapping and surveying systems.
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Earth ellipsoid model
ⓘ
geodetic reference ellipsoid ⓘ |
| abbreviation | GRS 80 NERFINISHED ⓘ |
| angularVelocity | 7.292115e-5 rad/s ⓘ |
| basisFor |
ETRS89
ⓘ
NAD83 ⓘ many modern national datums ⓘ |
| category |
geodesy
ⓘ
reference systems ⓘ |
| coordinateSystem |
geocentric Cartesian
ⓘ
geodetic latitude-longitude-height ⓘ |
| datumRole | ellipsoid for global reference systems ⓘ |
| definedInYear | 1980 ⓘ |
| definingOrganization |
IAG
NERFINISHED
ⓘ
International Association of Geodesy NERFINISHED ⓘ |
| dynamicalFormFactorJ2 | 0.00108263 ⓘ |
| epoch | 1980.0 ⓘ |
| equatorialRadius | 6378137.0 m ⓘ |
| flattening | 0.00335281068118 ⓘ |
| flatteningDefinition | (a−b)/a ⓘ |
| fullName | Geodetic Reference System 1980 NERFINISHED ⓘ |
| geocentricGravitationalConstant | 3.986005e14 m^3/s^2 ⓘ |
| hasParameter |
angular velocity
ⓘ
geocentric gravitational constant ⓘ inverse flattening ⓘ normal gravity formula ⓘ semi-major axis ⓘ |
| inverseFlattening | 298.257222101 ⓘ |
| normalGravityAtEquator | 9.7803267715 m/s^2 ⓘ |
| normalGravityAtPole | 9.8321863685 m/s^2 ⓘ |
| polarRadius | 6356752.314140356 m ⓘ |
| referenceFrameUsage | global geodesy ⓘ |
| region | Earth NERFINISHED ⓘ |
| relatedStandard | IAG Geodetic Reference System 1980 resolution NERFINISHED ⓘ |
| replaced | GRS67 ⓘ |
| scope | global ⓘ |
| semiMajorAxis | 6378137.0 m ⓘ |
| semiMajorAxisUnit | metre ⓘ |
| semiMinorAxis | 6356752.314140356 m ⓘ |
| semiMinorAxisUnit | metre ⓘ |
| similarTo | WGS84 ellipsoid NERFINISHED ⓘ |
| status | current ⓘ |
| symmetry | axisymmetric ⓘ |
| type | oblate spheroid ⓘ |
| usedFor |
coordinate reference systems
ⓘ
geodetic computations ⓘ mapping ⓘ surveying ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.