https://spdf.gsfc.nasa.gov/pub/data/imp/imp7/plasma_lanl/solarwind_2min/
       aareadme.txt 

The "data" subdirectory contains solar wind flow parameters,
based on proton and alpha particle measurements, given at
approximately 2-min resolution.  Data believed to have been
Earthward of the Earth's bow shock were excluded by the LANL
team.  The data are in ASCII and each data file contains one
month of data.

More detailed information on the contents and format of the data
records is available at
https://spdf.gsfc.nasa.gov/pub/documents/old/miscellaneous_documents_from_nssdc/b46485.txt
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Related data and directories:
SPDF Data and Orbits Services <http://spdf.gsfc.nasa.gov/>
NSSDC Master Catalog <http://nssdc.gsfc.nasa.gov/nmc/sc-query.html>
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Contact: Natalia Papitashvili <Natalia.E.Papitashvili@nasa.gov>,
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Please acknowledge NASA's National Space Science Data Center and
 Space Physics Data Facility, and the Principal Investigator 
Dr John Gosling for data usage.

Authorizing NASA Official: Dr. R.E. McGuire, Head, SPDF, NASA Goddard Space Flight Center
                        301-286-7794, e-mail:  Robert.E.McGuire@nasa.gov
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