In June 2011 , during the Second CoRoT Symposium , the probe added ten new objects to the Exoplanet catalogue : CoRoT-16b , CoRoT-17b , CoRoT-18b , CoRoT-19b , CoRoT-20b , CoRoT-21b , CoRoT-22b , CoRoT-23b , CoRoT-24b , CoRoT-24c .