OCO will attempt the work by using three high-resolution spectrometers to study sunlight reflected off Earth at the precise wavelengths that reveal the presence of carbon dioxide and molecular oxygen.

• OCO将用三个高分辨率分光计来尝试这一工作。分光计在精确的波长下研究反射出地球的太阳光，这一波长揭示二氧化碳及分子氧的存在。