CDAWeb contains selected public non-solar heliophysics data from current and past heliophysics missions and projects. Many datasets from current missions are updated regularly (even daily), including reprocessing older time periods, and SPDF only preserves the latest version. To find all of the public data and documents archived by the SPDF, see the SPDF archive. To search for additional heliophysics data products, check the heliophysics data portal.

REMINDER: CDAWeb offers CREATION of subset/supersets of data sets (by date and variables), CREATION of uniformly time binned data, PLOTS in PDF, PS and PNG formatted files, MOVIES of specific image sequences, ON-THE-FLY Inventory plots, ADJUSTABLE height time/spectrogram plots, plus many more options...

May 2025: The THEMIS-A data for January 6, 2025 and later have been removed from the archive and the system (all levels). The data pertaining to the THEMIS-A EFI, FFT. FBK and SCM was affected by a hardware failure in the digital fields board. Please read about this in the processing history pages for these instruments.

May 2025: The hourly ephemeris data (xxx_helio1hr_position) for heliospheric/planetary missions, planets and comets are generated and added to SPDF archive and the system. They are made from the ASCII orbit data in HelioWeb ( https://omniweb.gsfc.nasa.gov/coho/helios/heli.html). The daily orbit data values equal to the hourly orbit data values at the beginning of each day (hour = 0). The daily ephemeris data set (xxx_helio1day_position) has been removed from the system and archive.

March 2025: The PSP data have been extended to December 2024 (availability depending on the data sets), covering Encounters 20 and 21 and the inbound leg of Orbit 22. Please check the system, the PSP inventory plot and the annual inventory plots for details.

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