code: function getHeader (data) {
    var header = {}
    header.umid = data.slice(0, 3)
    header.mt_version = data.slice(3, 5)
    header.rics = data.slice(5, 9)
    header.key_id = data.slice(9, 14)
    return header
  }
docs: Get raw data and uncompress the TicketData