A European Space Agency constellation of five 156-kg Earth-observation satellites and the first fully commercial operational class of such that provides unparalleled performance. RapidEye’s sensors produce imagery in five spectral bands (red, green, blue, red edge, and near-infrared) of a 77-kilometre-wide swath of Earth’s surface, covering more than 5 million square kilometres every day (and over 1 billion km2 every year) to a resolution of 6.5 metres. The system also has the capability for daily revisit to any point on Earth. Identically calibrated, the images between satellites are indistinguishable from each other. Launched in August 2008 and designed to live seven years, the constellation is still operational.