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Trapped Radiation ENvironment model Development

UM535

[ Name | Synopsis | Arguments | Description | Diagnostics | Common Blocks | Dependencies | See Also | Reported Bugs | Examples ]

Name

    Subroutine UM535 - geocentric to geodetic transformation

Synopsis

      RECORD /zgeo/ mgeo
      RECORD /zgeo/ mgde 
        
      CALL UM535 (mgeo, mgde )

Arguments

    mgeo
    Geocentric location [in]
    mgde
    Geodetic location [out]

Description

    The subroutine UM535 transforms geocentric coordinates into geodetic coordinates in function of the geoid parameters stored in common block UC160 (see Astron.J. 66, 15 [1961]). Note that both locations are specified in spherical coordinates. For the geodetic coordinates, the RADIUS refers to the geodetic altitude incremented by a mean Earth's radius (see /zgeo/).

    When cartesian coordinates or other coordinates systems (GEI, SM, GSM, MAG) have to be used, the coordinate transformations can be realized with the help of subroutines UT541, UT546, UT550 and UT555.

Diagnostics

    None

Common Blocks

    UC160, general constants

Dependencies

Called by

    UM530, evaluate the magnetic field vector
    UA630, evaluate the atmospheric densities

Calls

    None

See also

    UM536, geodetic to geocentric transformation
    UT541, convert spherical coordinates to cartesian coordinates
    UT546, convert cartesian coordinates to spherical coordinates
    UT550, select a coordinate transformation
    UT555, coordinate conversion

Reported Bugs

    None

Examples

    None