*calculate search limits for the square search*

        **Key Arguments:**
            # -

        **Return:**
            - None

        .. todo::

def _calculate_search_limits(
            self):
        """
        *calculate search limits for the square search*

        **Key Arguments:**
            # -

        **Return:**
            - None

        .. todo::

        """
        self.log.info('starting the ``_calculate_search_limits`` method')

        # TRANSLATE COORDINATES ACROSS SKY

        self.ra1, self.dec1 = translate(
            log=self.log,
            ra=self.ra,
            dec=self.dec,
            northArcsec=-self.searchRadius,
            eastArcsec=-self.searchRadius
        ).get()

        self.ra2, self.dec2 = translate(
            log=self.log,
            ra=self.ra,
            dec=self.dec,
            northArcsec=self.searchRadius,
            eastArcsec=self.searchRadius
        ).get()

        self.log.info('completed the ``_calculate_search_limits`` method')
        return