Cluster 2 EFW Prime Parameters

This data set contains the Cluster 2 EFW Prime Parameters (spin averaged). Caveats The CSDS data are intended for event identification and are not for publication. Some obviously incorrect data have been removed in the validation process, but there may still be occasional data with poor quality in the PPDB and SPDB. Please always contact the EFW PI or the CSDS file validator (information given in the global attributes of each CDF file) for questions on data validity. The electric field E_dusk has not been corrected for offsets present due to, e.g., photoelectron asymmetries. The parameter U_probe_sc can be used as an approximate indicator of the electron density, except during periods when ASPOC is operating. Such periods have not been removed from the data. A more (less) negative value of U_probe_sc indicates lower (higher) density. The operation of WHISPER in the active mode sometimes disturbs the EFW measurements. Such disturbed data have most likely been removed in all quantities except U_probe_sc, where the disturbance is least severe.

本数据集收录团簇2号（Cluster 2）卫星EFW仪器的核心参数（自旋平均后版本）。注意事项：CSDS数据仅用于事件识别，不得用于公开发表。虽已在验证流程中剔除部分明显错误的数据，但PPDB与SPDB中仍可能偶见质量不佳的数据集。若对数据有效性存有疑问，请联系EFW项目首席研究员或CSDS文件校验员（相关信息详见各CDF文件的全局属性字段）。黄昏方向电场E_dusk尚未针对光电子不对称等因素引发的偏移量完成校正。U_probe_sc参数可作为电子密度的近似指示指标，但ASPOC运行时段除外，此类时段未从数据集中剔除。U_probe_sc的取值越负（越趋近于非负值），对应电子密度越低（越高）。WHISPER仪器处于主动模式运行时，有时会干扰EFW的测量结果。除U_probe_sc（受干扰程度最轻）外，其余所有参量中的受干扰数据大概率已被剔除。