Ionospheric Summary and Forecast

Ionospheric Summary

(last updated 08 Feb 2026 23:30 UT)

Date T index 08 Feb 98 Observed Australian Regional MUFs Cocos Island Region: Enhanced by 15% during local day. Depressed by 20% during local night. Niue Island Region: Enhanced by 25% during local day. Enhanced by 15% during local night. Northern Australian Region: Mostly near predicted monthly values. Southern Australian Region: Mostly near predicted monthly values. Antarctic Region (Casey/Davis/Mawson): Depressed by 15% over the UT day. Monthly T index: Month T index Jan 96 Feb 88 Mar 87

Ionospheric Forecast

(last updated 08 Feb 2026 23:30 UT)

Date T index MUFs 09 Feb 105 Near to 15% above predicted monthly values 10 Feb 105 Near to 15% above predicted monthly values 11 Feb 105 Near to 15% above predicted monthly values COMMENT: Maximum Usable Frequencies (MUFs) in the Australian region were near predicted monthly values on UT day 08-Feb. Spread-F was observed at Learmonth and Perth during local night hours. MUFs are expected to be near predicted monthly values to enhanced by 15% over 09-11 Feb. Shortwave fadeouts are probable.