3280 20171127110721.0 POSTER-2017-0038 Thiemann, Edward Retrieval of O and N2 distributions from PROBA2/LYRA occultation data 2017 2017-11-30 Prodex SDE, Proba 2 GI/ Prodex SDE, Proba 2 GI/ Prodex SDE, Proba 2 GI NO Dominique, Marie ESWW, Ostend marie.dominique@observatoire.be CPOSTER