Name

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      WGS_84

Purpose

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      Return a structure with some WGS 84 Ellipsoid values.

Category

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Calling Sequence

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      s = wgs_84()

Inputs

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Keyword Parameters

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Keywords

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        LAT=lat Specified latitude in degrees (def=0).
        /GEODETIC means given latitude is geodetic (def)).
        /GEOCENTRIC means given latitude is geocentric.

Outputs

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      s = returned structure: out
        s.a = semi-major axis (m).
        s.b = semi-minor axis (thru N-S pole) (m).
        s.f1 = Reciprocal of flattening.
        s.lat0 = Geocentric latitude for returned radius (deg).
        s.lat1 = Geodetic latitude for returned radius (deg).
        s.r = Radius from center at given latitude (m).
        s.r_axis = Radius from rotation axis at given latitude (m).
        s.d2m_lat = Meters/deg of lat at given lat (m).
        s.d2m_lon = Meters/deg of lon at given lat (m).

Common Blocks

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Notes

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Modification History

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      R. Sterner, 1998 Nov 2
  Copyright (C) 1998, Johns Hopkins University/Applied Physics Laboratory
  This software may be used, copied, or redistributed as long as it is not
  sold and this copyright notice is reproduced on each copy made. This
  routine is provided as is without any express or implied warranties
  whatsoever. Other limitations apply as described in the file disclaimer.txt.