[Ips-dhfpr] IPS Daily HF Prop Report - 29 July 11

rwc rwc at ips.gov.au
Sat Jul 30 09:29:36 EST 2011


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 29/2330Z JULY 2011 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (29 JULY) 
Date   T index  Conditions    
29 Jul    34    Fair-normal    

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 35% during local night.
      Depressed by 20% after local dawn.
   Niue Island Region:
      Depressed by 15% during local day.
      Depressed by 25% during local night.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Depressed by 15% during local day.
      Depressed by 35% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 15% during local day.
      Depressed by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 30%.

PCA Event : No event.

Predicted Monthly T index for July:  56
2. FORECAST (30 JULY - 01 AUGUST)
Date   T index  Conditions       MUFs                              
30 Jul    45    Fair-normal      Near predicted monthly values 
                                 to 30% depressed. 
31 Jul    50    Fair-normal      Near predicted monthly values 
                                 to 20% depressed.     
01 Aug    50    Fair-normal      Near predicted monthly values 
                                 to 20% depressed.    

COMMENT: Expect depressed conditions while solar flux remains 
low. Occasional solar activity will increase usable frequencies 
nearer to those predicted with the monthly T index. 

----------------------------------------------------------
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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