def read_uic2tag(fh, byteorder, dtype, plane_count):
    """Read MetaMorph STK UIC2Tag from file and return as dictionary."""
    assert dtype == '2I' and byteorder == '<'
    values = fh.read_array('<u4', 6*plane_count).reshape(plane_count, 6)
    return {
        'z_distance': values[:, 0] / values[:, 1],
        'date_created': values[:, 2],  # julian days
        'time_created': values[:, 3],  # milliseconds
        'date_modified': values[:, 4],  # julian days
        'time_modified': values[:, 5],  # milliseconds
    }