HP3 radiometer calibration data acquired on Earth in response to changes in observed brightness temperature and environmental temperature for the sensors observing the spot closer to the lander.

This data was acquired in the radiometric calibration setup in the Space Simulation Chamber at DLR, Berlin, Germany. The setup consists of a pressure vessel filled with 8 mbar Argon, a cavity blackbody and a thermal shroud, together simulating the thermal environment at the InSight landing site on Mars. The radiometer is mounted in the thermal shroud with the three sensors of field of view (FoV) 1 observing the blackbody. The sensors of FoV 2 observe the thermal shroud and the data should not be used. The data file has columns for start and end time of measurements at each calibration point in seconds since the epoch J2000 and number of data vectors averaged. The other columns are <br>UtcXY : thermopile voltage where X indicates FoV and Y indicates sensor numberTrefXY : thermopile temperature where X indicates FoV and Y indicates sensor numberTsh : radiometer sensor head temperatureTct : calibration target temperaturePsh : sensor head heater powerPct: calibration target heater powerTbb: cavity blackbody temperatureTenv: thermal shroud temperature

本数据集采集自德国柏林德国航空航天中心（DLR，Deutsches Zentrum für Luft- und Raumfahrt）空间模拟舱（Space Simulation Chamber）内的辐射定标装置（radiometric calibration setup）。该装置由充入8毫巴（mbar）氩气（Argon）的压力舱（pressure vessel）、腔式黑体（cavity blackbody）与热屏蔽罩（thermal shroud）组成，可模拟火星洞察号（InSight）着陆点的热环境。
辐射计安装于热屏蔽罩内，视场1（Field of View, FoV）的三台传感器用于观测腔式黑体；视场2的传感器用于观测热屏蔽罩，此类数据不得使用。
数据文件包含各定标点的测量开始与结束时间（以历元J2000为起算时刻的秒数）、平均数据矢量的数量等列，其余列信息如下：
- UtcXY：热电堆电压（thermopile voltage），其中X代表视场编号，Y代表传感器编号
- TrefXY：热电堆温度（thermopile temperature），其中X代表视场编号，Y代表传感器编号
- Tsh：辐射计传感器头温度（radiometer sensor head temperature）
- Tct：定标目标温度（calibration target temperature）
- Psh：传感器头加热器功率（sensor head heater power）
- Pct：定标目标加热器功率（calibration target heater power）
- Tbb：腔式黑体温度（cavity blackbody temperature）
- Tenv：热屏蔽罩温度（thermal shroud temperature）