[Ips-dhfpr] IPS Daily HF Prop Report - 21 December 01

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 21/2330Z DECEMBER 2001 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (21 DECEMBER) 
Date   T index  Conditions    
21 Dec   166    Normal-fair    

Flares: none.

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


Predicted Monthly T index for December: 112
2. FORECAST (22 DECEMBER - 24 DECEMBER)
Date   T index  Conditions       MUFs                              
22 Dec   130    Normal-fair      depressed 10%/near to 10% above 
                                 predicted monthly values 
23 Dec   160    Normal           10 to 15% above predicted monthly 
                                 values     
24 Dec   160    Normal           10 to 20% above predicted monthly 
                                 values    
COMMENT: MUfs have been recently enhanced with respect to the 
monthly T. However, after local dawn this morning MUFs are running 
near to slightly below monthly values in southern region Aus/NZ, 
probably in association with southward IMF and mildly elevated 
solar wind speeds/densities. 

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