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Coordinates Conversion

The document discusses geodetic coordinates, including definitions of geodetic latitude, longitude, and height in relation to the reference ellipsoid. It also covers the conversion between Earth Centered, Earth Fixed (ECEF) Cartesian coordinates and geodetic coordinates, detailing the orientation of the X, Y, and Z axes. The content is aimed at understanding the geometric aspects of geodesy.

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Bayode Emmanuel Ozovehe Adeiza
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39 views3 pages

Coordinates Conversion

The document discusses geodetic coordinates, including definitions of geodetic latitude, longitude, and height in relation to the reference ellipsoid. It also covers the conversion between Earth Centered, Earth Fixed (ECEF) Cartesian coordinates and geodetic coordinates, detailing the orientation of the X, Y, and Z axes. The content is aimed at understanding the geometric aspects of geodesy.

Uploaded by

Bayode Emmanuel Ozovehe Adeiza
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as DOC, PDF, TXT or read online on Scribd
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Geometric Geodesy by Surv. K. F. A.

Aleem

 Geodetic Coordinates

o The geodetic latitude (there are many other defined latitudes) of a point is the
angle from the equatorial plane to the vertical direction of a line normal to the
reference ellipsoid.
o The geodetic longitude of a point is the angle between a reference plane and a
plane passing through the point, both planes being perpendicular to the
equatorial plane.
o The geodetic height at a point is the distance from the reference ellipsoid to
the point in a direction normal to the ellipsoid.

__________________________________________________________________________________
Lecture Note Contact: akfaleem@yahoo.com 1
Geometric Geodesy by Surv. K. F. A. Aleem

 ECEF XYZ to Geodetic Coordinate Conversion

 Geodetic to ECEF XYZ Coordinate Conversion

 Earth Centered, Earth Fixed X, Y, and Z


o Earth Centered, Earth Fixed Cartesian coordinates are also used to define three
dimensional positions.
 Earth centered, earth-fixed, X, Y, and Z, Cartesian coordinates (XYZ)
define three dimensional positions with respect to the center of mass of
the reference ellipsoid.
 The Z-axis points toward the North Pole.
 The X-axis is defined by the intersection of the plane define by the
prime meridian and the equatorial plane.
 The Y-axis completes a right handed orthogonal system by a plane 90°
east of the X-axis and its intersection with the equator.

__________________________________________________________________________________
Lecture Note Contact: akfaleem@yahoo.com 2
Geometric Geodesy by Surv. K. F. A. Aleem

__________________________________________________________________________________
Lecture Note Contact: akfaleem@yahoo.com 3

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