[Ips-dhfpr] IPS Daily HF Prop Report - 11 September 02

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 11/2330Z SEPTEMBER 2002 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (11 SEPTEMBER) 
Date   T index  Conditions    
11 Sep   114    Normal-fair    

Flares    Max     Fadeout    Freq.  Sectors
 M2/2B    0735UT  possible   lower  Mid East/Indian

MUFs:
   Equatorial PNG Region:
      Enhanced by 40% during local day,
      Enhanced by 65% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 35% during local night.
      Depressed 10-15% after local dawn.
   Southern Australian and New Zealand Region:
      Depressed 15% local day.
      Enhanced by 40% during local night.
      Depressed 15-20% after local dawn.
   Antarctic Region (Casey/Scott Base):
      Enhanced by 25% over the UT day.
      Some spread F and absorption observed.


PCA Event : No event.

Predicted Monthly T index for September:  96
2. FORECAST (12 SEPTEMBER - 14 SEPTEMBER)
Date   T index  Conditions       MUFs                              
12 Sep    85    Normal-fair      depressed 10 to 15%/near predicted 
                                 monthly values 
13 Sep   130    Normal           Near predicted monthly values     
14 Sep   140    Normal           Near predicted monthly values    
COMMENT: IPS HF Communications Warning 47 was issued on 11 September 
and is current for interval 12 September only. MUFs depressed 
15% after local dawn, following overnight geomagnetic activity 
and seasonal factors.. 

IPS Radio and Space Services      | email: asfc at ips.gov.au
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