Ionospheric Summary and Forecast

Ionospheric Summary

(last updated 16 Jun 2019 23:31 UT)

Date T index 16 Jun -10 Observed Australian Regional MUFs Cocos Island Region: Mostly near predicted monthly values. Depressed by 20% after local dawn. Niue Island Region: Near predicted monthly values. Northern Australian Region: Near predicted monthly values. Southern Australian Region: Near predicted monthly values during local day. Enhanced by 30% during local night. Antarctic Region (Casey/Scott Base/Davis/Mawson): Enhanced by 25% over the UT day. Monthly T index: Month T index May 2 Jun -11 Jul -12

Ionospheric Forecast

(last updated 16 Jun 2019 23:31 UT)

Date T index MUFs 17 Jun -10 Near predicted monthly values 18 Jun -15 Near predicted monthly values 19 Jun -15 Near predicted monthly values COMMENT: Maximum usable frequencies (MUFs) ranged near predicted monthly values for the Australian region today, 16 June. Mildly depressed MUFs observed at times over the Equatorial region. Sporadic-E and Spread F occurrences were observed over some Australian ionosonde sites. Similar HF conditions are expected over the next 24 hours.