Venus Express IMA solar wind data for VeRa radio science observations

The Venus Express (VEX) Analyser of Space Plasmas and Energetic Atoms (ASPERA-4)ion mass spectrometer (IMA) observed the the pristine solar wind parametersat Venus between 2006 and 2014. Details can be found inBarabash et al. (2007) Planetary and Space Science, Vol. 55 (12), pp. 1772-1792The Analyser of Space Plasmas and Energetic Atoms (ASPERA-4) for the Venus Express mission.

This file is based on the VEX_IMA_SW_NVP_20060101.cef data file providedby M. Fränz (MPI for Solar System Research, Goettingen, Germany) and contains only those ASPERA-4solar wind observations used in the publication Peter et al. (2024) IcarusThe variability of the topside ionospheres of Venus and Marsas seen by recent radio science observations (Appendix A4 Fig. 2).

Data are based on hourly average IMA spectra obtained when VEX was at larger distance than1 Venus radius from nominal bow shock (Martinecz 2009, PhD). Density and total velocityare obtained by integration over the IMA_EXTRA proton spectrum. Dynamic pressureby product of density and velocity. This file contains only orbits used for VERA analyis.