code: def isorbit_record(self):
          
  
          import re
          test = re.match('^9[0-9]{5}$', self.targetname.strip()) is not None
          return test
docs: `True` if `targetname` appears to be a comet orbit record number.
  
          NAIF record numbers are 6 digits, begin with a '9' and can
          change at any time.