As with all data sets, we are continually updating and revising our data analysis techniques as we improve our knowledge about the ionospheric environment and the behavior of our instruments. As such that means that we will be rerunning the data analysis periodically. For you the user this means that data you downloaded six months ago may no longer be the best and most accurate data. This log exists for you to check and see which version of the data were on-line when you retrieved the data and find out if those data have been revised. Please note that ALL these data are provisional for the time being.
October 15, 2008
Data distribution site goes public. Limited to plots only for August and September 2008.
December 5, 2008
Only data plots for August and September 2008 are available. Revised data for the ion density and a change in the sign of Vz are now on-line.February 12, 2009.
February 12, 2009
Only data plots for August and September 2008 are available. Revised data for the temperature, the composition, and the Vx of the ions are now on-line.
May 15, 2009
All data (plots and numerical data) from August 2008 through March 2009 are now on-line. Quality flags still have not been finalized.
June 11, 2009
A sign error in the Vy data was discovered and corrected. Data extended through May 13, 2009. No other parameters were affected.