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- X is the interface number. Increments in this number represent a significant change to the format of the file has been made. E.g. new parameters added, or parameters re-named. Also increments upon significant change in the algorithm of the processing software.
- Y is the quality number. This number represents a change in the quality of the data in the file, which would require re-processing of previously processed data. Y resets to 0 when X increments.
- Z is the revision number. Z is set to 0 the first time a given file is processed, and is incremented each time the file is re-processed for any reason. Z is reset to 0 after X or Y is incremented.
Please see the Version Release Notes page for the history of FPI file versions.
File Formats
FPI L2 science data is released in Common Data Format (CDF), a conceptual data abstraction for storing, manipulating, and accessing multidimensional data sets (see https://cdf.gsfc.nasa.gov). Variables and attributes within FPI CDF files follow standards documented in the MMS CDF File Format Guide, except where noted.
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