code: def _prepare_url_params(tile_id, bbox, end_date, start_date, absolute_orbit):
      
      url_params = {
          'identifier': tile_id,
          'startDate': start_date,
          'completionDate': end_date,
          'orbitNumber': absolute_orbit,
          'box': bbox
      }
      return {key: str(value) for key, value in url_params.items() if value}
docs: Constructs dict with URL params
  
      :param tile_id: original tile identification string provided by ESA (e.g.
                      'S2A_OPER_MSI_L1C_TL_SGS__20160109T230542_A002870_T10UEV_N02.01')
      :type tile_id: str
      :param bbox: bounding box of requested area in WGS84 CRS
      :type bbox: geometry.BBox
      :param start_date: beginning of time range in ISO8601 format
      :type start_date: str
      :param end_date: end of time range in ISO8601 format
      :type end_date: str
      :param absolute_orbit: An absolute orbit number of Sentinel-2 L1C products as defined by ESA
      :type absolute_orbit: int
      :return: dictionary with parameters as properties when arguments not None
      :rtype: dict