CubeSense Earth is a compact and reliable infrared earth horizon sensor that provides high-accuracy nadir determination throughout the entire orbit. This allows for accurate satellite control in eclipse without the need for a star tracker, making it a less expensive alternative. CubeSense Earth is tested with our infrared lens calibration and earth emulator jig, which is an innovative in-house test set-up designed and built by CubeSpace (CS) engineers. Features: Infrared horizon sensor