Solar radiation is essential for life on Earth. When it reaches our planet, a portion is absorbed by the Earth’s surface and oceans, generating heat and giving rise to the climate patterns we know. Another portion of this radiation is reflected into space, providing important information about our planet’s surfaces. Using greenhouse gas sensors installed on nanosatellites in LEO orbits can help detect and mitigate this current problem. This paper presents the design and simulation of a system that can be coupled to the subsystems of a 3U CubeSat nanosatellite. The results demonstrate that it is feasible and functional.