Calibration of the Heat Flow and Physical Properties Package (HP3) for the InSight Mars Mission

Kurzfassung

The Heat Flow and Physical Properties Package (HP3) of the InSight Mars mission is a heat flow probe designed to measure the temperature gradient and thermal conductivity of the martian regolith to a depth of 5 m. To reconstruct sensor depth, tiltmeters measure the emplacement angle with an uncertainty of better than 0.25 degree. Temperature Sensors have been calibrated to measure temperature difference with an uncertainty of better than 5 mK, thermal conductivity can be measured with an uncertainty of better than 4%. All stated uncertainties are 1-sigma confidence limits.