MODIFY POSITION

        LAS\MODIFY POSITION Lambda Beta

    Change the projection center to (Lambda,Beta). Units are degrees, except
    Lambda  in  hour  angle  if coordinate system is Equatorial. Sexagesimal
    strings or numeric real values can be used.

    The offsets are also modified, as to be consistent with the center. This
    is useful when different parts of one source are mapped relative to sev-
    eral reference positions.

    This command is a shortcut for:
      MODIFY PROJECTION  =  Lambda Beta  =
    i.e. modify the projection center but preserve the projection  kind  and
    angle.