Ionospheric Summary

Last updated 01 Sep 2010 23:38 UT Date T index 01 Sep 26 Observed Australian Regional MUFs Cocos Island Region: Near predicted monthly values during local day, Depressed by 20% during local night. Niue Island Region: Mostly near predicted monthly values, Northern Australian Region: Near predicted monthly values during local day, Depressed by 15% during local night. Southern Australian and New Zealand Region: Near predicted monthly values. Antarctic Region (Casey/Scott Base/Davis/Mawson): Near predicted monthly values over the UT day. Predicted Monthly T index for September: 28

Ionospheric Forecast

Last updated 01 Sep 2010 23:38 UT Date T index MUFs 02 Sep 20 near predicted monthly values 03 Sep 20 Near predicted monthly values 04 Sep 20 Near predicted monthly values COMMENT: Equatorial latitude MUFs less reduced than the last couple of days. The regional T index rose to near monthly median. Polar ionosphere likely to be disturbed early on 2Sept due to local geomagnetic activity from merging with the solar magnetic field. The small recurrent coronal hole in the north does not appear to have been geoeffective but another more extended hole across the solar equator is more likely be in 3-4 days, and MUFs could be slightly depressed from monthly averages.