[Ips-dhfpr] IPS Daily HF Prop Report - 21 October 09

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 21/2330Z OCTOBER 2009 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (21 OCTOBER) 
Date   T index  Conditions    
21 Oct     2    Normal-fair    

Flares: none.

MUFs:
   Cocos Island/Niue Island Region:
      Depressed by 15% during local day,
      Depressed by 20% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      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 October:   1
2. FORECAST (22 OCTOBER - 24 OCTOBER)
Date   T index  Conditions       MUFs                              
22 Oct     0    Normal-fair      near predicted monthly values/depressed 
                                 10 to 20% 
23 Oct     0    Normal-fair      near predicted monthly values/depressed 
                                 5 to 10%     
24 Oct     5    Normal           Near predicted monthly values    
COMMENT: Mostly normal HF conditions observed over the last 24 
hours. Depressed conditions again during local day and night 
for Equatorial regions. Normal conditions for Northern AUS regions. 
Enhanced conditions again for Southern AUS/NZ regions during 
local night. Normal ionospheric support for high latitudes. Notable 
increase in sporadic E for mid to low latitudes. Similar conditions 
are expected for the next 3 days, with depressed periods for 
low latitudes and possible enhancements during local night for 
mid latitudes. Enhanced sporadic E effects are expected as well 
over the next 24 hours for Equatorial, Northern AUS and Southern 
AUS/NZ regions. 
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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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