See also OMNI/OMNIHR
This data set is described in http://omniweb.gsfc.nasa.gov/
- Numerical Data 
On April 29, 2009, new geomagnetic activity index variables were added to the OMNI2 data set. They are included in the most recent version.
The version 1 label indicates that many of the existing parameters have changed since the previous merged files were created for version 0 in 2009.
Kondrashov has developed a reconstruction of solar wind parameters (Bz, By, and dynamic pressure P) in the gaps of missing data in OMNI dataset for 1984-1995 time interval .
- Cite: From http://omniweb.gsfc.nasa.gov/html/ow_data.html: Use of these data in publications should be accompanied at minimum by acknowledgements of the National Space Science Data Center.