The PRASSADCO program for the STAFF instrument on the DSP equatorial spacecraft

Ondrej Santolik (e-mail address of Ondrej Santolik as a gif image), Charles University, Prague
19 March 2004

Processing of STAFF FFT (Double Star) calibrated data from level 2 binary files. These file are generated by the fftl2 program (Keith Yearby, University of Sheffield). PRASSADCO is a computer program designed to analyze multicomponent measurements of electromagnetic waves. It implements methods used to estimate polarization and propagation parameters, such as the degree of polarization, sense of elliptic polarization and axes of polarization ellipse, the wave vector direction. The results can be represented in different visual and numerical formats.


  1. Download files, read_fftl2.idl, pra_template.ini, and 040213fft_example.dat
  2. Under IDL (ver 5.5 and higher) type pras,'040213fft_example.dat'
  3. A new ascii log file 040213fft_example_log.txt, a new binary data file 040213fft_example_1254_1259_sm.dat, and a new resulting postscript file will be generated in the same directory.
  4. The same procedure can be used for different level 2 files.


Additional links:

Example of the output for the test data file 040213fft_example.dat:

Example of the output figure

Other examples of the output: