[Ips-dhfpr] IPS Daily HF Prop Report - 21 February 12 issued 2346 UT on 21 Feb 2012

rwc rwc at ips.gov.au
Wed Feb 22 10:46:49 EST 2012


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 21/2330Z FEBRUARY 2012 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (21 FEBRUARY) 
Date   T index  Conditions    
21 Feb    35    Fair-poor      

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 25% during local night.
   Niue Island Region:
      Enhanced by 15% during local day.
      Depressed by 30% during local night.
   Northern Australian Region:
      Depressed by 25% during local day.
      Depressed by 20% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 30% during local day.
      Depressed by 25% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 15% over the UT day.

PCA Event : No event.

Predicted Monthly T index for February:  80


2. FORECAST (22 FEBRUARY - 24 FEBRUARY)
Date   T index  Conditions       MUFs                              
22 Feb    55    Normal           Near predicted monthly values
23 Feb    50    Normal-fair      Near predicted monthly values/depressed 
                                 5 to 15%    
24 Feb    40    Fair             Near predicted monthly values/depressed 
                                 5 to 25%   

COMMENT: MUFs depressions up to nearly 30% were observed on many 
locations today. HF conditions were relatively better on low 
latitudes. Mostly normal HF conditions may be expected on 22 
and most parts of 23 February. Minor to mild degradations are 
possible on mid and high latitudes late on 23 February. Minor 
to moderate degradations in HF conditions may be expected on 
24 February due to expected enhancements in geomagnetic activity 
levels around this time.

----------------------------------------------------------
For an explanation of some of the terms in this report, go to
http://www.ips.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.

IPS Radio and Space Services        email: asfc at ips.gov.au
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