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`gc2gd(`

`ellid`, `xyz`)

[SOFA] Returns geodetic coordinates (eastward longitude in radians,
northward latitude in radians, height above the ellipsoid in meters)
corresponding to geocentric coordinates

(in meters)
using the specified reference ellipsoid `xyz`

(1 = wgs84,
2 = grs80, 3 = wgs72). `ellid`

must have 3 elements in its
first dimension, and `xyz`

must have a single element.
The result has the same dimensions as `ellid`

.
`xyz`

See also: Astronomical Coordinate Calculations