Sentinel-3B signed and sealed

Sentinel-3B's rocket fairing has been adorned with the mission sticker and signed. Now signed and sealed, just the delivery into orbit part remains. The Copernicus Sentinel-3B satellite is scheduled for liftoff on 25 April 2018. Its identical twin, Sentinel-3A, has been in orbit since February 2016. The two-satellite constellation offers optimum global coverage and data delivery for Europe’s Copernicus environment programme.