Ionospheric Summary and Forecast

Ionospheric Summary

(last updated 04 Mar 2021 23:30 UT)

Date T index 04 Mar 4 Observed Australian Regional MUFs Cocos Island Region: No data available. Niue Island Region: No data available. Northern Australian Region: Mostly near predicted monthly values. Southern Australian Region: Depressed by 15% during local day. Depressed by 15% during local night. Antarctic Region (Casey/Scott Base/Davis/Mawson): Near predicted monthly values over the UT day. Monthly T index: Month T index Feb -1 Mar 16 Apr 20

Ionospheric Forecast

(last updated 04 Mar 2021 23:30 UT)

Date T index MUFs 05 Mar 5 Near predicted monthly values 06 Mar -5 Depressed 15%/near predicted monthly values 07 Mar 0 Near predicted monthly values COMMENT: SWS HF Communications Warning 9 was issued on 3 March and is current for 4-6 Mar. On UT day 4 March, MUFs in the Australian region were mostly near predicted monthly values with some mild depressions. Sporadic E layers were observed, strong at times. MUFs in the Australian region are expected to be near predicted monthly values on UT day 5 March. Some mild MUF depressions are likely on UT day 6 March in response to the forecast geomagnetic activity. Then on UT day 7 March the MUFs in the Australian region are expected to be near predicted monthly values.