ACE SWEPAM/SWICS mreged solar wind proton data release notes:

These are cumulative release notes. As new data are released or old
data are reprocessed, this file will be updated.

Imporant Note: Please also read the release notes for the SWEPAM and
SWICS individual Level 2 data sets, available at
http://www.srl.caltech.edu/ACE/ASC/level2/swepam_l2desc.html
http://www.srl.caltech.edu/ACE/ASC/level2/ssv3_l2desc.html

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March 17 2008:

Initial release. This data set consists of 12-minute averaged solar
wind proton data from SWEPAM, with gaps in the density, bulk
speed, and temperature data filled in using SWICS data, if
available.

Note: the SWICS proton data are NOT available separately from this
merged SWEPAM/SWICS data set.

The SWEPAM Alpha/proton ratio and the SWEPAM vector velocity are
included in this data set, but gaps in these data are not filled with
SWICS data.

Spacecraft position vectors are also included, in GSE and GSM
coordinate systems.

January 17 2010:

New release, with improved SWICS data processing...test version.
Proper release notes TBD.