TY - JOUR A1 - Grott, M. A1 - Spohn, T. A1 - Knollenberg, J. A1 - Krause, C. A1 - Scharringhausen, M. A1 - Wippermann, T. A1 - Smrekar, S.E. A1 - Hudson, T.L. A1 - Banerdt, W.B. T1 - Calibration of the Heat Flow and Physical Properties Package (HP 3) for the InSight Mars Mission Y1 - 2019 VL - 6 IS - 12 SP - 2556 EP - 2574 JF - Earth and Space Science DO - 10.1029/2019EA000670 DO - 10.23689/fidgeo-4972 N2 - The (HP 3) of the InSight Mars mission is an instrument package to measure the Martian geothermal heat flow. The instrument's platinum resistance temperature sensors have been calibrated between −75 and +55 °C, and the absolute temperature uncertainty of the calibration is 10 mK. Temperature differences can be measured with an uncertainty of better than 5 mK. HP 3 determines regolith thermal conductivity by using the HP 3 mole as a modified line heat source, and thermal conductivity can be measured with an uncertainty of better than 4%. Tilt sensors used to determine the attitude of the mole during penetration measure tilt with an uncertainty of better than 0.25°. UR - http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/9318 ER -