[Ips-dhfpr] IPS Daily HF Prop Report - 22 May 11

rwc rwc at ips.gov.au
Mon May 23 09:29:27 EST 2011


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 22/2330Z MAY 2011 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (22 MAY) 
Date   T index  Conditions    
22 May    45    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      No data available. 
   Niue Island Region:
      Depressed by up to 30% between 01-13UT,
      Near predicted monthly values at other times.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Depressed by up to 30% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Depressed by up to 25% around local nightfall, 
      Enhanced by 25% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Predicted Monthly T index for May:  49
2. FORECAST (23 MAY - 25 MAY)
Date   T index  Conditions       MUFs                              
23 May    40    Normal           near predicted monthly values/depressed 
                                 20 to 30% 
24 May    40    Normal           near predicted monthly values/depressed 
                                 20 to 30%     
25 May    40    Normal           near predicted monthly values/depressed 
                                 20 to 30%    
COMMENT: MUFs were mostly around predicted monthly values during 
local daytime, with some depressed periods of up to 30% at low 
latitudes. Low and mid latitudes experienced depressions around 
local nightfall of between 10-30%. Mild depressions are expected 
to continue to occur for the next few days. 
----------------------------------------------------------
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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Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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