Applies default secthresh & exclusion radius constraints

def apply_default_constraints(self):
        """Applies default secthresh & exclusion radius constraints
        """
        try:
            self.apply_secthresh(pipeline_weaksec(self.koi))
        except NoWeakSecondaryError:
            logging.warning('No secondary eclipse threshold set for {}'.format(self.koi))
        self.set_maxrad(default_r_exclusion(self.koi))