[Ips-dhfpr] IPS Daily HF Prop Report - 18 September 03

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 18/2330Z SEPTEMBER 2003 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (18 SEPTEMBER) 
Date   T index  Conditions    
18 Sep    25    Fair           

Flares: none.

MUFs:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Depressed by 35% during local night.
   Northern Australian Region:
      Depressed by 15% during local day,
      Near predicted monthly values during local night.
   Southern Australian and New Zealand Region:
      Depressed by 30% during local day,
      Depressed by 20% during local night.
      Depressed by 25% after local dawn.
   Antarctic Region (Casey/Scott Base):
      Depressed by upto 30% over the UT day with periods
      of significant degradations.

PCA Event : No event.

Predicted Monthly T index for September:  57
2. FORECAST (19 SEPTEMBER - 21 SEPTEMBER)
Date   T index  Conditions       MUFs                              
19 Sep    40    Fair             Depressed 5 to 10%/Near predicted 
                                 monthly values. 
20 Sep    45    Normal-fair      near predicted monthly values     
21 Sep    50    Normal           Near predicted monthly values    
COMMENT: IPS HF Communications Warning 63 was issued on 16 September 
and is current for interval 18-19 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
PO Box 1386                       | WWW: http://www.ips.gov.au
Haymarket NSW 1240  AUSTRALIA     | FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010              | fax: +61 2 9213 8060 

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