[Ips-dhfpr] IPS Daily HF Prop Report - 13 September 05

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 13/2330Z SEPTEMBER 2005 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (13 SEPTEMBER) 
Date   T index  Conditions    
13 Sep    17    Normal-fair    

Flares    Max     Fadeout    Freq.  Sectors
  M1.3    1121UT  possible   lower  European
X1.5/3B    1927UT  probable   all    East Pacific/
                                    North American

MUFs:
   Equatorial PNG Region:
      Depressed by 20% during local day,
      Depressed by 30% during local night.
   Northern Australian Region:
      Depressed by 40% during local day,
      Depressed by 30% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 35% during local day,
      Depressed by 40% during local night.
   Antarctic Region (Casey/Scott Base):
      Less data availabe over the UT day.
      Strong degradations observed. 

PCA Event : Began at 0235UT 08/09, Ended at 0025UT 13/09
 

Predicted Monthly T index for September:  24
2. FORECAST (14 SEPTEMBER - 16 SEPTEMBER)
Date   T index  Conditions       MUFs                              
14 Sep    20    Normal-fair      near predicted monthly values 
                                 /depressed 5% 
15 Sep     0    Fair-poor        Near predicted monthly values/depressed 
                                 40%.     
16 Sep    20    Normal-fair      Near predicted monthly values/depressed 
                                 5 to 10%.    
COMMENT: IPS HF Communications Warning 35 was issued on 13 September 
and is current for interval 13-14 September. HF conditions may 
show mild to significant degradations in Aus/NZ regions, especially 
in the southern regions on 15 September. 
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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->
Gloassary on Solar Terrestrial Terms.

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