[Ips-dhfpr] IPS Daily HF Prop Report - 17 September 03

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 17/2330Z SEPTEMBER 2003 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (17 SEPTEMBER) 
Date   T index  Conditions    
17 Sep    25    Normal-poor    

Flares    Max     Fadeout    Freq.  Sectors
 M1/-- 16/2224UT  possible   lower  West Pacific

MUFs:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Depressed by 20% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Depressed by 25% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 20% during local day,
      Depressed by 25% during local night.
      Depressed by 25% after local dawn.
   Antarctic Region (Casey/Scott Base):
      Depressed by 20% over the UT day.


PCA Event : No event.

Predicted Monthly T index for September:  57
2. FORECAST (18 SEPTEMBER - 20 SEPTEMBER)
Date   T index  Conditions       MUFs                              
18 Sep    40    Fair-Poor        depressed 10 to 20%/near predicted 
                                 monthly values 
19 Sep    45    Fair             Depressed 5 to 10%/Near predicted 
                                 monthly values.     
20 Sep    50    Fair             Depressed 5%/Near predicted 
                                 monthly values.    
COMMENT: IPS HF Communications Warning 64 was issued on 16 
September and is current for interval 17-18 September. Mild 
to moderately depressed MUFS and degraded conditions, more 
likely in the southern Aus/NZ regions, are expected during 
the next two days. 

IPS Radio and Space Services      | email: asfc at ips.gov.au
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Haymarket NSW 1240  AUSTRALIA     | FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010              | fax: +61 2 9213 8060 

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