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   Home right arrow HF Systems right arrow Australasia right arrow HF Conditions right arrow Ionospheric Summary and Forecast FORECAST SOL: Normalgreen MAG: Normalgreen ION: Moderateyellow Saturday, Feb 04 2012 08:19 UT
Australasia 
Ionospheric Summary and Forecast

Ionospheric Summary

Last updated 03 Feb 2012 23:31 UT

Date   T index
03 Feb    95

Observed Australian Regional MUFs
   Cocos Island Region:
      No data available 
   Niue Island Region:
      Near predicted monthly values during local day.
      No data available during local night.
   Northern Australian Region:
      Mostly near predicted monthly values,
      Depressed by 25% after local dawn.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values,
      Depressed by 20% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

Predicted Monthly T index for February:  80


Ionospheric Forecast

Last updated 03 Feb 2012 23:31 UT

Date   T index  MUFs
04 Feb    50    about 20% below predicted monthly values 
05 Feb    70    Near predicted monthly values 
06 Feb    80    Near predicted monthly values 

COMMENT: MUFs were mostly near predicted monthly values. Overnight 
geomagnetic activity in polar regions appears to have depressed 
the MUFs in the Australian region by around 20%. This is likely 
to persist for the next day before returning to predicted monthly 
values on days 2 and 3. 


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