With launch set for 13 December, the Ariane 5 rocket carrying the Meteosat Third Generation Imager (MTG-I1) satellite is ready to roll out to the launch pad. The rocket also carries two ‘co-passenger’ satellites: Intelsat Galaxy 35 and 36. MTGI-1 carries two completely new instrument that will deliver high-quality data to improve weather forecasts: a Flexible Combined Imager and Europe’s first Lightning Imager.