Selected charge states and abundance ratios :
Alpha particle speed: Repeated from previous archive for comparison. - C6+/C5+
and O7+/O6+ ratios: These two ratios are essentially redundant, with the former
being ~10 times higher than the latter on average. At high values the O ratio is
more reliable (because C5+ is getting rare) whereas at low values the C ratio is
preferable (because O7+ gets rare). Low ratios are indicative of fast streams. -
Fe/O abundance ratio: This is a proxy for the strength of the FIP fractionation
if divided by the solar Fe/O ratio of ~0.05. - Average charge state of Fe:
Weighted average of all charge states from Fe6+ to Fe16+, normally between 9 and
12 both in slow and in fast wind. High values are a good CME indicator. - Number
of instrument cycles that were accumulated to obtain the 3-hour average value.
Each instrument cycle takes 13 minutes, so values of 12-14 are normal, whereas
low values should be considered as a warning.
Version:2.4.1
Selected charge states and abundance ratios :
Alpha particle speed: Repeated from previous archive for comparison. - C6+/C5+
and O7+/O6+ ratios: These two ratios are essentially redundant, with the former
being ~10 times higher than the latter on average. At high values the O ratio is
more reliable (because C5+ is getting rare) whereas at low values the C ratio is
preferable (because O7+ gets rare). Low ratios are indicative of fast streams. -
Fe/O abundance ratio: This is a proxy for the strength of the FIP fractionation
if divided by the solar Fe/O ratio of ~0.05. - Average charge state of Fe:
Weighted average of all charge states from Fe6+ to Fe16+, normally between 9 and
12 both in slow and in fast wind. High values are a good CME indicator. - Number
of instrument cycles that were accumulated to obtain the 3-hour average value.
Each instrument cycle takes 13 minutes, so values of 12-14 are normal, whereas
low values should be considered as a warning.
| Role | Person | StartDate | StopDate | Note | |
|---|---|---|---|---|---|
| 1. | DataProducer | spase://SMWG/Person/Rudolf.Von.Steiger |
Web Service to this product using the HAPI interface.
Access to Data via CDPP/AMDA Web application.
ratio of carbon 6+ to 5+
ratio of oxygen 7+ to 6+
abundance ratio of iron to oxygen
average charge state of iron in e- = 1.6022e-19 C