Posted by Kayla on Thursday, March 1, 2012 at 9:19pm.
I am not sure how to convert my Cartesian xyzcoordinates into meters.
x = 0.666
y = 0.666
z = 0.327
a = 6,377,563.396 meters
b = 6,356,256.910 meters

Math  MathMate, Thursday, March 1, 2012 at 10:15pm
If you are working with an ellipsoid with a=b>c, where
a=b=6,377,563.396 (towards the equator)
c=6,356,256.910 (towards the poles)
then
x=acos(u)cos(v)
y=acos(u)sin(v)
z=csin(u)
where π/2≤ u ≤π/2
and π≤ v ≤π
So from the known values of x,y and z, solve for u and v.
But I am not sure what you need in metres.
See:
http://en.wikipedia.org/wiki/Ellipsoid
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