Heavy ion main charge states listed are
density (relative to O6+) , speed, and kinetic temperature of the main charge
state of heavy elements. They can be used to track the kinetic properties
(differential speeds, mass- proportional temperatures) of these ions and their
evolution with heliocentric distance, heliographic latitude, etc. They must not
be used, however, to derive freeze-in temperatures or abundance ratios of
elements (although the ratio C6+/O6+ is an excellent proxy for the C and O
freezing-in temperature).