European Space Agency

Royal Belgian Institute for Aeronomy

ut555 - coordinate conversion

subroutine  ut555(mfrom, mto, trans)

Parameters:

• mfrom [zgeo,in] :: location in the “old” system.

• mto [zgeo,out] :: location in the “new” system.

• trans (3,3) [real8,in] :: transformation matrix.

Description

The subroutine ut555() converts spherical coordinates from a coordinate system to another according to the transformation matrix trans passed as argument. The matrix trans corresponds generally to a rotation and can be evaluated by the help of subroutine ut550(). Note that the matrix trans is expressed in cartesian coordinates. The subroutine converts the location mfrom expressed in the “old” coordinate system to the same location but expressed in the “new” coordinate system.

History

• The subroutine UT555 does not exist in version 1.05 and earlier.

Diagnostics

None

Common Blocks

• uc160 - general constants

Dependencies

Called by

None

Calls

None

See also

• ut556 - vector conversion

Reported Bugs

None

Examples

None

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UNILIB/tags/v3.02