HP3 radiometer data gathered on Mars that is used to correct the open cover radiometric calibration data in dataset 10 for background drift.

This data was acquired at the InSight landing site on Mars and is used to estimate the signal received from the Mars surface during open cover calibration. The radiometer observes both calibration target and surface at the same time. This table contains observations without a stimulus from the calibration target on days and local times close to those data with a stimulus from the calibration target (dataset 10). Subtracting these observations interpolated to the local time of calibration observations provides an estimate of the signal from the calibration target without contribution from the Mars surface.<br><br>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<br>The columns for cavity blackbody and environment temperature are included so that the table format is identical with the ground calibration data. The variables are provided as unknown ('UNK').<br>Raw data can also be found on the Planetary Data System:https://pds-geosciences.wustl.edu/missions/insight/hp3rad.htm

本数据集采集自火星洞察号（InSight）着陆点，用于估算开放盖校准期间接收到的来自火星表面的信号。该辐射计可同时观测校准靶标与火星表面。本表格收录无校准靶标刺激的观测数据，其观测日期与地方时与存在校准靶标刺激的数据集10（dataset 10）相近。将这些插值至校准观测地方时的观测值作差后，即可得到仅来自校准靶标、不受火星表面信号干扰的信号估算结果。

数据文件包含各校准点的测量起止时间（以J2000纪元为基准的秒数形式）与平均后的数据向量数量。其余列分别为：
UtcXY：热电堆电压，其中X代表视场（Field of View，FoV），Y代表传感器编号；
TrefXY：热电堆温度，其中X代表视场，Y代表传感器编号；
Tsh：辐射计传感器探头温度；
Tct：校准靶标温度；
Psh：传感器探头加热器功率；
Pct：校准靶标加热器功率；
Tbb：空腔黑体温度；
Tenv：热罩温度。

为保持与地面校准数据的表格格式一致，本表格保留了空腔黑体与环境温度列。所有变量均以未知值（'UNK'）形式给出。

原始数据亦可通过行星数据系统（Planetary Data System）获取：https://pds-geosciences.wustl.edu/missions/insight/hp3rad.htm