jquery-object-specific-value

{step: function(){
    var id = $(this).attr('id');
    var pos = $(this).position();
    var posRight = pos.left + $(this).width();
    var posBottom = pos.top + $(this).height();

    var xCenter = posRight / 2;
    var yCenter = posBottom / 2;

    $('#' + id).data( 'test', { x: xCenter, y: yCenter } );
    console.log($('#orb1').data( 'test' ).x)
}