.:instrumentfiles:home

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An aircraft data acquisition system records data (i.e. *.sea level 1 file) from many different instruments. Instrument files (Level 2 and Level 3 files) are created containing all parameters obtained from the instrument by the data acquisition system. Measurements from each instrument are converted from engineering units (Level 2) to physical units (Level 3) if necessary. The instrument files are typically further processed using measurements from several instruments in Level 4 processing. The final processing step is typically to combine parameters of scientific interest into a summary file. All ASCII files (*.raw, *.clean) are in the NASA/UND format which is based on "Format Specification for Data Exchange" written by Steven E. Gains and R. Stephen Hipsking. All data files have a meta-data header. The file format specifications (formatspec.txt) and a meta-data header variable example (fileheader.html) are provided via the ADPAA repository (src/share directory).

Below is a list of files by processing level. The parameter information is also available from the ADPAA repository in the src/share directory. Information about processing modules for each instrument is given in the Data Streams section of this Wiki. Instrument manufacturer's full names are Applanix Corp. (Applanix), Aventech Research (Aventech), Brechtel Manufacturing Inc. (BMI), Droplet Measurement Technologies (DMT), Honeywell International Inc. (Honeywell), Omega Engineering (Omega), Science Engineering Associates (SEA), Stratton Park Engineering Company (SPEC), and TSI Incorporated (TSI).

Level 3 Files

From Level 1

From Level 2

Level 4 Files