the internal density distribution. The 1980 Geodetic Reference System (GRS 80) posited a 6378137 m semi-major axis and a 1⁄298.257222101 flattening. This...

used, but are statistically significant if a global datum is used. On the GRS 80 or WGS 84 spheroid at sea level at the Equator, one latitudinal second measures...

designed to adhere closely to the GRS-80, incidentally the WGS-84 derived flattening turned out to differ slightly from the GRS-80 flattening because the normalized...

geoidal undulation, and it varies globally between ±110 m based on the GRS 80 ellipsoid. A reference ellipsoid, customarily chosen to be the same size...

satellites naturally deal with Earth as a monolithic body. Therefore, the GRS 80 ellipsoid was developed for best approximating the Earth as a whole, and...

metre-level consistent with WGS 84. The WGS 84 reference ellipsoid was based on GRS 80, but it contains a very slight variation in the inverse flattening, as it...

exactly 2π times the radius, namely 40,075.0142 km (24,901.4594 mi). The GRS 80 (Geodetic Reference System 1980) as approved and adopted by the IUGG at...

in kilometers (following GRS 80 and WGS 84 standards). 40075.0167, the length of the Equator in kilometers (following GRS 80 and WGS 84 standards). 384399...

Koordinat 1942 goda ED50 European Datum 1950 SAD69 South American Datum 1969 GRS 80 Geodetic Reference System 1980 ISO 6709 Geographic point coord. 1983 NAD...

the whole Earth and was widely used around the world until the 1980s when GRS 80 and WGS 84 were established. Many national coordinate systems of Gauss–Krüger...

Koordinat 1942 goda ED50 European Datum 1950 SAD69 South American Datum 1969 GRS 80 Geodetic Reference System 1980 ISO 6709 Geographic point coord. 1983 NAD...

Koordinat 1942 goda ED50 European Datum 1950 SAD69 South American Datum 1969 GRS 80 Geodetic Reference System 1980 ISO 6709 Geographic point coord. 1983 NAD...

part of WGS84 along with its reference ellipsoid. WGS84 combines the old GRS 80 with the then-latest data, namely available Doppler, satellite laser ranging...

{b^{2}}{a^{2}}};\quad } (e is the eccentricity) For the Geodetic Reference System 1980 (GRS 80) the parameters are set to these values: a = 6 378 137 m b = 6 356 752 ...

Koordinat 1942 goda ED50 European Datum 1950 SAD69 South American Datum 1969 GRS 80 Geodetic Reference System 1980 ISO 6709 Geographic point coord. 1983 NAD...

{\displaystyle a} is the equatorial radius of the chosen spheroid. On the GRS 80 spheroid Lambert's formula is off by 0 North 0 West to 40 North 120 West...

the string. In the polar regions, a different convention is used. South of 80°S, UPS South (Universal Polar Stereographic) is used instead of a UTM projection...

Koordinat 1942 goda ED50 European Datum 1950 SAD69 South American Datum 1969 GRS 80 Geodetic Reference System 1980 ISO 6709 Geographic point coord. 1983 NAD...

Koordinat 1942 goda ED50 European Datum 1950 SAD69 South American Datum 1969 GRS 80 Geodetic Reference System 1980 ISO 6709 Geographic point coord. 1983 NAD...

Koordinat 1942 goda ED50 European Datum 1950 SAD69 South American Datum 1969 GRS 80 Geodetic Reference System 1980 ISO 6709 Geographic point coord. 1983 NAD...

Planetary science – Science of planets and planetary systems "DEFENSE MAPPING AGENCY TECHNICAL REPORT 80-003". Ngs.noaa.gov. Retrieved 8 December 2018....

Koordinat 1942 goda ED50 European Datum 1950 SAD69 South American Datum 1969 GRS 80 Geodetic Reference System 1980 ISO 6709 Geographic point coord. 1983 NAD...

establish chart datum with respect to the Geodetic Reference System 1980 (GRS 80) reference ellipsoid, thus enabling direct compatibility with satellite...

King-Hele, D. (1967). "The Shape of the Earth". Scientific American, 217(4), 67-80. JSTOR 10.2307/24926147. Günter Seeber (2008), Satellite Geodesy, Walter de...

Dietrich Schroeer; Mirco Elena (2000). Technology Transfer. Ashgate. p. 80. ISBN 978-0-7546-2045-7. Retrieved May 25, 2008. Michael Russell Rip; James...

a mosque or the placement of a mat. For example, calculations using the GRS 80 ellipsoidal model yields the qibla of 18°47′06″ for a location in San Francisco...

Koordinat 1942 goda ED50 European Datum 1950 SAD69 South American Datum 1969 GRS 80 Geodetic Reference System 1980 ISO 6709 Geographic point coord. 1983 NAD...

Koordinat 1942 goda ED50 European Datum 1950 SAD69 South American Datum 1969 GRS 80 Geodetic Reference System 1980 ISO 6709 Geographic point coord. 1983 NAD...

Koordinat 1942 goda ED50 European Datum 1950 SAD69 South American Datum 1969 GRS 80 Geodetic Reference System 1980 ISO 6709 Geographic point coord. 1983 NAD...

Koordinat 1942 goda ED50 European Datum 1950 SAD69 South American Datum 1969 GRS 80 Geodetic Reference System 1980 ISO 6709 Geographic point coord. 1983 NAD...