Ionospheric Summary and Forecast

Ionospheric Summary

(last updated 30 Aug 2026 23:30 UT)

Date T index 30 Aug 78 Observed Australian Regional MUFs Cocos Island Region: No data available during local day. No data available during local night. Niue Island Region: Enhanced by 15% during local day. Near predicted monthly values during local night. Northern Australian Region: Enhanced by 15% during local day. Near predicted monthly values during local night. Southern Australian Region: Near predicted monthly values. Antarctic Region (Casey/Davis/Mawson): Near predicted monthly values over the UT day. Monthly T index: Month T index Jul 75 Aug 64 Sep 61

Ionospheric Forecast

(last updated 30 Aug 2026 23:30 UT)

Date T index MUFs 31 Aug 90 Near predicted monthly values 01 Sep 90 Near predicted monthly values to 15% enhanced 02 Sep 90 Near predicted monthly values to 15% enhanced COMMENT: Maximum usable frequencies (MUFs) in the Australian region on UT day 30-Aug were mostly near predicted values to 15% enhanced. Sporadic-E was observed in Niue and Canberra overnight and spread-F was observed in Hobart. Some residual sporadic-E is possible along the eastern coast of Australian during local night hours on 31-Aug but is generally expected to recover over 1-2 Sep. MUFs are expected to be mostly near predicted values to 15% enhanced over 31-Aug to 1-2 Sep.