Data Descriptions
Which set of data would you like to see info about:
| ESA | SST | EFI | MOM | SCM | FGM | FBK | FFT | FIT | ASI | GMAG | STATE | GMOM |
FFT 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 the FFT (On-board Fast Fourier Transform) data. Dates for reprocessing of FFT L2 files are included.
Files thx_l2_fft_yyyymmdd_v01.cdf (where x = a,b,c,d or e):
| Processing | Comments | ||
| Date | |||
| 2009-10-09: | First release. | ||
| 2010-05-17: | Reprocessed THB (post 24-Jul-2009), THC (post 13-apr-2010) L2 files in response to filled data gaps from L0/L1 processing. | ||
| 2010-09-02: | Reprocessed all FFT FBK due to changes in L1 files to correct timing problems. | ||
| 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. | ||
| 2012-05-22: | Reprocessed all probes, full mission FFT L2 files, with new calibration data. | ||
| 2012-11-07: | Reprocessed all probes, full mission FFT L2 files, to fix problem with bad time arrays. | ||
| 2018-04-10: | Reprocessed all probes, full mission FFT L2 files, to fix problem with bad frequency arrays, where the frequency array was assumed to be the same for both electric and magnetic field data. This was incorrect; frequency values are now correctly defined for each data variable. | ||
| 2019-11-15: | Reprocessed All probe L2 files for THEMIS-A:Oct 6-12 2019;Oct 25-29 2019, THEMIS-D:Oct 26-27 2019,THEMIS-E:Oct 26-28 2019;June 21-22 2012, all but 2012 files due to power outage of October 2019. |
| Link to the FFT Data Variable Descriptions | Link to FFT Instrument Information |