The RapidEye constellation of five satellites stands apart from other providers of satellite-based geospatial information in their unique ability to acquire high-resolution, large-area image data on a daily basis. The RapidEye system collects an unprecedented 4 million square kilometers of data per day at 6.5 meter nominal ground resolution. Each satellite measures less than one cubic meter and weighs 150 kg (bus + payload), and has been designed for at least a seven-year mission life. All five satellites are equipped with identical sensors and are located in the same orbital plane. RapidEye's satellites include the Red-Edge band, which is sensitive to changes in chlorophyll content.