[Ips-dhfpr] IPS Daily HF Prop Report - 20 September 01

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SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 20/2330Z SEPTEMBER 2001 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (20 SEPTEMBER) 
Date   T index  Conditions    
20 Sep   164    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.6    1818UT  possible   lower  East Pacific/
                                    North American

MUFs:
   Equatorial PNG Region:
      Enhanced greater than 15%.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 35% during local night.
   Southern Australian and New Zealand Region:
      Enhanced greater than 20%.
   Antarctic Region (Casey/Scott Base):
      Enhanced greater than 30%.


Predicted Monthly T index for September: 108
2. FORECAST (21 SEPTEMBER - 23 SEPTEMBER)
Date   T index  Conditions       MUFs                              
21 Sep   130    Normal-Fair      near predicted monthly values 
22 Sep   140    Normal           Near predicted monthly values 
                                 to enhanced 15%.     
23 Sep   145    Normal           Near predicted monthly values 
                                 to enhanced 15%.    
COMMENT: IPS HF Communications Warning 47 was issued on 18 September 
and is current for interval 19-21 September (SWFs) . Enhanced 
MUFs observed yesterday. Fadeouts can be expected on daylight 
HF circuits. Slightly degraded conditions may be experienced 
for 21-22 September following the anticipated impact of the CME 
observed on 18 September. 

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