ROUTINE
-------

INT_ ug_min_double (INT_ Start_Index,
                    INT_ End_Index,
                    INT_1D * Data)

DESCRIPTION
-----------

Get minimum value in an INT_ array.


INPUT ARGUMENTS
---------------

Start_Index              : Index of first data location to be copied.
End_Index                : Index of last data location to be copied.
Data                     : Source data array.

RETURN VALUE
----------------

Minimum value.
