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A125124
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Decimal expansion of the flattening (inverse) of the World Geodetic System 1984 ellipsoid, second upgrade.
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3
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2, 9, 8, 2, 5, 7, 2, 2, 3, 5, 6, 3
(list; constant; graph; refs; listen; history; internal format)
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OFFSET
| 3,1
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COMMENTS
| Closely aligned with ITRF93, 29 Sept 96 onwards.
The new World Geodetic System is called WGS 84. It is currently the reference system being used by the Global Positioning System. It is geocentric and globally consistent within +-1 m.
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REFERENCES
| H. Moritz, Geodetic Reference System 1980, Journal of Geodesy 74 (1): 128-162, 2000. (not WGS 84)
Thaddeus Vincenty, Direct and inverse solutions of geodesics on the ellipsoid with application of nested equations, Survey Review XXII (176): 88-93, 1975.
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LINKS
| Office of GEOINT Sciences, World Geodetic System 1984 (WGS 84).
U.S. Dept. of Commerce, NOAA, National Geodetic Survey, Survey Review, Thaddeus Vincenty, Direct and Inverse Solutions of Goedesics on the Ellipsoid with Application of Nested Equations, Vol. XXIII, No. 176, April, 1975. (an application)
U.S. Dept. of Defense, National Imagery and Mapping Agency, Technical Report, WGS 1984, Its Definition and Relationships with Local Geodetic Systems.
U.S. Dept. of Transportation, Federal Aviation Administration, Advisory Circular 90-45A, Appendix J, Computation of Geodesic Information, 2/21/75.
Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.
WGS, World Geodetic System, 1984.
Wikipedia, The Free Encyclopedia, World Geodetic System.
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EXAMPLE
| 1/f = 298.257223563
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MATHEMATICA
| (* first do *) Needs["GeometricalGeodesy`ReferenceEllipsoids`"] (* then *) RealDigits[ 1 / flattening@ WGS84, 10, 12][[1]]
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CROSSREFS
| Cf. A125123, A125125, A125126.
Sequence in context: A205384 A199181 A011071 * A011446 A021339 A092971
Adjacent sequences: A125121 A125122 A125123 * A125125 A125126 A125127
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KEYWORD
| cons,nonn
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AUTHOR
| Robert G. Wilson v (rgwv(AT)rgwv.com) & Thomas H. Meyer (thomas.meyer(AT)uconn.edu), Nov 21 2006
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EXTENSIONS
| The Mathematica coding was incomplete Robert G. Wilson v (rgwv(AT)rgwv.com), Apr 17 2010
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