class UtmConverter {

    public static char utmBand(double lat) {
        // code taken from: http://www.igorexchange.com/node/927
        // XXX I guess, there are exceptions for artic/antarctic region?
        return (-80 <= lat && lat <= 84) ? UTM_BAND_CHARS.charAt((int)(lat + 80) / 8) : 'Z';
    }

    private  UtmConverter();

}