class_docstr: Reader for HRPT Minor Frame, 10 bits data expanded to 16 bits.
docstr: Get navigation data.
docstr_tok: ["Get","navigation","data","."]
code: def _get_navigation_data(self, key):
      """Get navigation data."""
      lons, lats = self.lons_lats
      if key["name"] == "latitude":
          data = da.from_array(lats, chunks=self._chunks)
      else:
          data = da.from_array(lons, chunks=self._chunks)
      return data
  
imports: import logging
  from datetime import datetime
  import dask.array
  import numpy
  import xarray
  from geotiepoints import SatelliteInterpolator
  from pyorbital.geoloc import compute_pixels, get_lonlatalt
  from pyorbital.geoloc_instrument_definitions import avhrr
  from pyorbital.orbital import Orbital
  from satpy._compat import cached_property
  from satpy.readers.aapp_l1b import get_avhrr_lac_chunks
  from satpy.readers.file_handlers import BaseFileHandler
label_desc: Use image node_id 9 for calling the HRPTFile obj's underlying member method code with example usage: obj._get_navigation_data(key) and returns: data