[Ips-dhfpr] IPS Daily HF Prop Report - 20 August 02

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SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 20/2330Z AUGUST 2002 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (20 AUGUST) 
Date   T index  Conditions    
20 Aug   159    Normal-fair    

Flares    Max     Fadeout    Freq.  Sectors
  M5.4    0140UT  possible   lower  E. Asia/Aust.
  M1.6    0257UT  possible   lower  E. Asia/Aust.
  M3.4    0826UT  possible   lower  Mid East/Indian
  M1.3    2114UT  possible   lower  East Pacific/
                                    North American

MUFs:
   Equatorial PNG Region:
      Enhanced by 35% during local day,
      Enhanced by 35% during local night.
   Northern Australian Region:
      Enhanced by 15% during local day,
      Enhanced by 50% during local night.
   Southern Australian and New Zealand Region:
      Enhanced by 25% during local day,
      Enhanced by 30% during local night.
   Antarctic Region (Casey/Scott Base):
      Some Spread and absorption observed.


PCA Event : No event.

Predicted Monthly T index for August: 102
2. FORECAST (21 AUGUST - 23 AUGUST)
Date   T index  Conditions       MUFs                              
21 Aug   150    Normal-Fair      about 15% above predicted monthly 
                                 values 
22 Aug   150    Normal-Fair      about 15% above predicted monthly 
                                 values     
23 Aug   150    Normal           about 15% above predicted monthly 
                                 values    
COMMENT: IPS HF Communications Warning 40 was issued on 18 August 
and is current for interval 19-21 August (SWFs) . Fadeouts can 
be expected on daylight HF circuits. Stronger MUfs observed in 
association with increased solar flux from active solar regions. 

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