CH1ORB-L-SARA-2-NPO-EDR-CENA

Contents 1 Data set description 1.1 Data set overview 1.2 Parameters 1.3 Processing 1.4 Data 1.5 Ancillary data 1.6 Software 1.7 Media/Format 2 Confidence level note 2.1 Confidence level overview 2.2 Review 2.3 Data quality 1. Data set description 1.1. Data set overview The output data of CENA sensor is basically neutral particle counts.CENA sensor operates in 3 instrument modes (coincidence Mode, counter M ode and Engineering Mode) and the content of the data coming from the CENA sensor is dependent on the instrument mode and the format of the data depends on the telemetry mode. The telemetry modes are Mass Accumulation Mode, TOF Accumulation Mode and Count Accumulation Mode.In Mass accumulation mode, TOF accumulation mode and Count accumulation mode, data coming from the sensor is being sorted by lookup tables and is being summed up into two types of accumulation matrixes (the accumulation matrix and the accumulation scaling matrix) during a time period. The accumulation matrix size changes depending on the binning parameters (energy, channel, phase and mass bins).For details on the CENA sensor of the SARA experiment and the data products, see the EAICD in the `DOCUMENT directory. 1.2. Parameters The measured parameter is basically raw neutral particle counts. 1.3. Processing No processing beyond unpacking has been applied to the telemetry data. 1.4. Data Each data product contains all data from one orbit. The data product contain housekeeping data as well as science data as scaling matrix(total counts) and accumulation matrix except for the counter mode operation of CENA where there will be no scaling matrix.The instrument mode and telemetry mode is reflected in the file name (refer to the EAICD in the DOCUMENT directory).CENA data is archived using the storage format of PDS ARRAY of COLLECTION objects.Each CENA PDS data product f ile contains an ARRAY of records of CENA measurements in one orbit. Ea ch record is [truncated!, Please see actual data for full text]