[Ips-dhfpr] IPS Daily HF Prop Report - 17 October 07

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 17/2330Z OCTOBER 2007 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (17 OCTOBER) 
Date   T index  Conditions    
17 Oct   -12    Normal-poor    

Flares: none.

MUFs:
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day,
      Depressed by 35% during local night.
      Depressed by 25% after local dawn.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Depressed by 25% during local night.
   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 October:  10
2. FORECAST (18 OCTOBER - 20 OCTOBER)
Date   T index  Conditions       MUFs                              
18 Oct   -10    Normal-poor      depressed 15 to 30%/near predicted 
                                 monthly values 
19 Oct    -5    Normal-fair      depressed 10 to 20%/near predicted 
                                 monthly values     
20 Oct     0    Normal-fair      depressed 5 to 15%/near predicted 
                                 monthly values    
COMMENT: IPS HF Communications Warning 17 was issued on 17 October 
and is current for interval 18 October only. Significant depressions 
were observed at times during the past 24 hours primarily for 
northern Australian/Equatorial regions. Significant depressions 
are again expected at times for northern Australian/Equatorial 
regions, otherwise mostly normal conditions are expected for 
the next few days. 
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For an explanation of some of the terms in this report, goto
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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