Data plot

This service allows the plot of geomagnetic indices that are not officially endorsed by IAGA but are already widely used and/or under development.
The data plots are limited to a 1-year time range.
Plots may be printed and saved with the 'Print'/'Print to file' menu of your browser.

Data type
	ASY/SYM (since 1981)	aσ (since 1959)
Data range
	from...	to...