docs: def params(self):
          """
          :return: A dictionary of SSOS query parameters.
          :rtype: dict
          """
          params = dict(format=RESPONSE_FORMAT,
                        verbose=self.verbose,
                        epoch1=str(self.search_start_date),
                        epoch2=str(self.search_end_date),
                        search=self.orbit_method,
                        eunits=self.error_units,
                        eellipse=self.error_ellipse,
                        extres=self.resolve_extension,
                        xyres=self.resolve_position,
                        telinst=self.telescope_instrument)
  
          if self.orbit_method == 'bynameHorizons':
              params['object'] = NEW_LINE.join((str(target_name) for target_name in self.observations))
          else:
              params['obs'] = NEW_LINE.join((str(observation) for observation in self.observations))
          return params