[Ips-dhfpr] IPS Daily HF Prop Report - 17 September 11

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 17/2330Z SEPTEMBER 2011 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (17 SEPTEMBER) 
Date   T index  Conditions    
17 Sep    80    Normal         

Flares: none.

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

PCA Event : No event.

Predicted Monthly T index for September:  62
2. FORECAST (18 SEPTEMBER - 20 SEPTEMBER)
Date   T index  Conditions       MUFs                              
18 Sep    70    Normal           10 to 20% above predicted monthly 
                                 values
19 Sep    70    Normal           Near predicted monthly values    
20 Sep    65    Normal           Near predicted monthly values   

COMMENT: Enhanced MUFS ranging from 15-25% were observed for 
the AUS/NZ regions over the last 24 hours. Mostly normal ionospheric 
support for Antarctic regions. MUFs are expected to be near monthly 
values over the next 3 days.
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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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