Data Descriptions

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SST Level 2 Data Processing History

This web page contains significant dates for changes in the software and mastercdfs that are used to create THEMIS Level 2 data files for SST (Solid State Telescope) data. Dates for reprocessing of SST L2 files are included.

Files thx_l2_sst_yyyymmdd_v01.cdf (where x = a,b,c,d or e):

Processing  Comments
2007-06-15:   SST L2 files contain full mode energy flux spectrograms.
2007-09-11:  Reprocessed all L2 files to clean out bad files. No change in SST variables.
2008-01-10:  Full L2 reprocessing. No changes in variables or file format.
2008-04-18:  Full L2 reprocessing for TDAS version 4.00 QA. No changes in variables.
2008-12-07:  Reprocessed SST L2 to add software version number.
2010-05-18:  Reprocessed THB (post 24-Jul-2009), THC (post 13-apr-2010) L2 files in response to filled data gaps from L0/L1 processing.
2010-09-16:  Reprocessed full mission for sst; corrected solarwind mode flags, corrected the attenuator adjustment values.
2011-01-07:  Reprocessed full mission for ESA, FBK, FGM, FFT, FIT, MOM, SCM, and SST; to correct for data gaps at day boundaries caused by time clipping in load routines.
2011-05-18:  For some times during boom deployment, the spin period dropped to a value below 2.5 seconds, causing problems with the accumulation of ESA and SST data, resulting in duplicate and non-monotonic time tags. This effected the the following probe data:
THEMIS A - September and December 2007, January 2008
THEMIS B - November 2007
THEMIS C - May 2007
THEMIS D - June2007
2012-10-19:   Reprocessed SST L2 files, all dates and probes, to remove 1.5 second discrepancy.
2014-01-07:   Reprocessed SST L2 files, all dates and probes. All data include new calibrations with dead layer and efficiencies. Electron data calculated from combined F & FT coincidence channel data. CDFs now contain particle moments in addition to energy spectra.
2017-04-18 to 2017-05-04:   Reprocessed FGM, FIT, MOM, ESA, SST and EFI L2 files for all probes for the full mission with new magnetic field calibration data.


Link to the SST Data Variable Descriptions     Link to SST Instrument Information
Link to ion SST configuration history    Link to electron SST configuration history