[Ips-dhfpr] IPS Daily HF Prop Report - 07 September 11

rwc rwc at ips.gov.au
Thu Sep 8 09:31:24 EST 2011


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 07/2330Z SEPTEMBER 2011 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (07 SEPTEMBER) 
Date   T index  Conditions    
07 Sep    56    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  X1.8    2238UT  probable   all    East Pacific/
                                    North American

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day,
      Depressed by 30% during local night.
   Niue Island Region:
      Near predicted monthly values during local day,
      Enhanced by 55% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   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.

PCA Event : No event.

Predicted Monthly T index for September:  62
2. FORECAST (08 SEPTEMBER - 10 SEPTEMBER)
Date   T index  Conditions       MUFs                              
08 Sep    55    Normal           Near predicted monthly values
09 Sep    55    Normal           Near predicted monthly values    
10 Sep    55    Normal           Near predicted monthly values   

COMMENT: IPS HF Communications Warning 37 was issued on 6 September 
and is current for interval 8-9 September Observed MUFs were 
mostly near predicted values over the last 24 hours. Large MUF 
enhancements in Niue Island region overnight, with some depressed 
nighttime periods in Cocos Island region. MUFs are expected to 
be mostly near monthly predicted values over the next 3 days, 
with mild depressions likely at high latitudes due to CME effects.

----------------------------------------------------------
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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tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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