Ionospheric Summary and Forecast

Ionospheric Summary

(last updated 27 Feb 2020 23:30 UT)

Date T index 27 Feb -6 Observed Australian Regional MUFs Cocos Island Region: Depressed by 15% during local day. Enhanced by 15% during local night. Niue Island Region: Near predicted monthly values during local day. Depressed by 40% during local night. Northern Australian Region: Near predicted monthly values during local day. Enhanced by 15% during local night. Southern Australian Region: Near predicted monthly values during local day. Enhanced 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 Jan -20 Feb -16 Mar -16

Ionospheric Forecast

(last updated 27 Feb 2020 23:30 UT)

Date T index MUFs 28 Feb -10 Near predicted monthly values 29 Feb -15 Near predicted monthly values 01 Mar -15 Near predicted monthly values COMMENT: Maximum usable frequencies (MUFs) for UT day 27 February were mostly near predicted monthly values. Sporadic E observed at Niue 08-13 UT and Canberra 17-19 UT. Night spread F at Hobart and some pre-dawn spread F at Brisbane, Norfolk Is. and Sydney. MUFs are expected to be mostly near predicted monthly values on 28 February-1 March. Night spread F possible over the next three days.