Data Analysis Tools

(Solar system plasma Turbulence: Observations, inteRmittency and Multifractals) is an European FP7 project that investigates solar system plasma turbulence through a thorough survey of the existing data bases  (e.g. Ulysses, Cluster, Venus Express). One of the goals of the project and one of its major deliverables is to build and test an integrated software library for nonlinear data analysis (INA) that cumulates analysis methods able to reveal the structure and topology of turbulent fluctuations. The library is versatile enough to ingest data from various missions and to apply a full package of analysis methods, ranging from lower order analysis, like the Power Spectral Density analysis, to higher order analyses like the Probability Distribution Functions and their moments (e.g. flatness), wavelet analysis and multifractals. The integrated library is equipped with a graphical user interface that enables an interactive analysis and a full control of the analysis parameters. The library is extensively tested with ESA missions data (e.g. Cluster, Ulysses, Venus Express). More detailed description is in the attachment. 

IRFU-MATLAB ( This is a MATLAB package that includes many different type of routines allowing to analyse both multi-spacecraft and single spacecraft data. Some of the important parts include:
  • General plasma physics: estimates of different plasma parameters, plasma wave dispersion relations for cold and hot plasma, plasma wave visualisation, different space plasma models,...
  • General time series analysis routines
  • Single spacecraft analysis methods: Minimum Variance of B, deHoffmann-Teller analysis, Walén analysis, SVD, Means, EMHD reconstruction, multi-probe interferometry,...
  • Multi-spacecraft analysis methods: Discontinuity Analyser, gradient methods (e.g. curlometer).
  • Data reading supports: Cluster Science Archive, OMNI, MMS, different cdf sources.
  • Plotting routines of publishing quality figures: time series, spectrograms, spacecraft location, models,...
Orbit Visualization Tool - OVT ( is a software for visualization of satellite orbits in the Earth's and interplanetary3D view of THOR orbit, Bow-shock and Magnetopause models
magnetic field. The program can display satellite orbits in five coordinate systems (GEI, GEO, GSM, SMC, GSE), satellite footprints projected on the Earth's surface and shown in either geographic (GEO) or geomagnetic (SMC) coordinates. In addition to satellite orbits the software computes and displays various models of magnetospheric structures, magnetopause, bow shock and foreshock, and interplanetary field conditions. The models are time-dependent on the solar wind, IMF and geomagnetic activity levels. OVT will be particularly useful for planning of THOR operations.

Andris Vaivads,
Jan 6, 2015, 11:35 AM