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

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

1. SUMMARY (20 DECEMBER) 
Date   T index  Conditions    
20 Dec    97    Normal-fair    

Flares    Max     Fadeout    Freq.  Sectors
M6.8/SF    1318UT  probable   lower  European
M2.7/2N 19/2153UT  possible   lower  East Pacific/
                                    North American

MUFs:
   Equatorial PNG Region:
      Enhanced by 15% during local day,
      Enhanced by 30% during local night.
   Northern Australian Region:
      Mostly near predicted monthly values,
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.


PCA Event : No event.

Predicted Monthly T index for December:  90
2. FORECAST (21 DECEMBER - 23 DECEMBER)
Date   T index  Conditions       MUFs                              
21 Dec    80    Fair             depressed 10 to 15%/near predicted 
                                 monthly values 
22 Dec   100    Normal-poor      Near predicted monthly values     
23 Dec    50    Poor-fair        depressed 10 to 20%/near predicted 
                                 monthly values    
COMMENT: Isolated shortwave fadeout activity expected. Depressed 
MUFs expected southern region after local dawn today. Depressed/degraded 
conditions are likely late 22-23 Dec following anticipated coronal 
mass ejection geomagnetic activity.. 

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