CH1ORB-L-SARA-2-NPO-EDR-SWIM

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 1.8 Review 1.9 Data quality 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 SWIM is an ionmass analyser and hence the output data of SWIM sensor is basically ion counts in varoius energy, direction and mass bins. One full maesurement cycle of SWIM is 8s.The data coming from the sensor is being sorted by lookup tables and is being sorted into into two types of accumulation matrixes (the accumulation matrix and the accumulation scaling matrix) during one cycle of measurement. The accumulation matrix size changes depending on the binning parameters (energy, Deflection and mass bins).For details on the SWIM 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 ion 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. SWIM data is archived using the storage format of PDS ARRAY of COLLECTION objects.Each SWIM PDS data product file contains an ARRAY of records of SWIM measurements in one orbit. Each record is described using a COLLECTION object.A PDS SWIM COLLECTION object groups all data related to one measurement:SWIM parameters (start time, compression mode, cycles of integration, etc.), reassembled housekeeping parameters in the header of the science data, the accumulation scaling matrix (counter data summed during a sampling period) and the accumulation matrix(event data integrated during a sampling period).If the binning parameters change within an orbit, the number of elements tr [truncated!, Please see actual data for full text]