The RAD radiometer for the HP 3 experiment
The RAD radiometer for the HP 3 experiment
The DLR HP 3 experiment also includes the RAD radiometer, which is mounted on the lander platform. This determines the temperature of the Martian surface by observing its infrared radiation. The surface can reach a maximum of just over 20 degrees Celsius during the day, but can fall below minus 70 degrees Celsius at night. Knowledge of the surface temperature is important in order to be able to calculate disturbances in the temperature distribution in the subsurface. RAD was built at the DLR Institute of Optical Sensor Systems.
