What's behind such an important mission as @CopernicusEU #Sentinel5P? Let's hear it from the PM, Kevin McMullan: 2 teams, 3 months of training, a 6 weeks launch campaign… https://t.co/s4JSU1GsCt#Tropomi pic.twitter.com/XTUD6ClvY2

— ESA EarthObservation (@ESA_EO) December 1, 2017