MMS-1 SCM Search Coil Magnetometer Level-2 Commissioning Waveform (CDF)

This data set contains MMS-1 SCM calibrated AC magnetic field waveforms in the GSE frame. The data are sampled at (survey scsrvy=32 samples/s, brst scb=8192 samples/s, schb=16384 samples/s). They are high-pass filtered above (scsrvy = 0.5 Hz, scb = 1 Hz, schb = 32 Hz) but not low-pass filtered. For this case of commissioning data, the sample frequency can be different from the nominal modes, and is indicated in the name of the CDF files (example m_comm_l1a_sc128_20150316_v1.1.0.cdf where the frequency corresponds to 128 Hz (sample per second)).

本数据集包含GSE坐标系（Geocentric Solar Ecliptic，地心太阳黄道坐标系）下，经MMS-1的SCM（Search Coil Magnetometer，搜索线圈磁强计）校准后的交流磁场波形。该数据采用三种采样模式采集：巡天模式（scsrvy）采样率为32采样/秒，突发模式（scb）为8192采样/秒，schb模式为16384采样/秒。所有数据均针对对应模式施加了高通滤波，截止频率分别为：巡天模式0.5 Hz，scb模式1 Hz，schb模式32 Hz，但未进行低通滤波。本数据集属于调试阶段采集的数据，其采样频率可能与标准运行模式的标称采样率存在差异，具体采样率可通过CDF（Common Data Format，公共数据格式）文件名获知，例如示例文件m_comm_l1a_sc128_20150316_v1.1.0.cdf，其文件名中的"128"即对应采样率为128 Hz（采样每秒）。