[Ips-dhfpr] IPS Daily HF Prop Report - 23 December 02

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 23/2330Z DECEMBER 2002 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (23 DECEMBER) 
Date   T index  Conditions    
23 Dec   134    Normal-fair    

Flares: none.

MUFs:
   Equatorial PNG Region:
      Enhanced by 15-20%.
   Northern Australian Region:
      Enhanced by 20-30%.
   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.
      Some spread F observed.


PCA Event : No event.

Predicted Monthly T index for December:  90
2. FORECAST (24 DECEMBER - 26 DECEMBER)
Date   T index  Conditions       MUFs                              
24 Dec    75    Fair             depressed 15% (south Aus/NZ) 
24 Dec   135    Normal           enhanced 15% (north Aus) 
25 Dec   130    Normal           10 to 15% above predicted monthly 
                                 values     
26 Dec   130    Normal           10 to 15% above predicted monthly 
                                 values    
COMMENT: IPS HF Communications Warning 80 was issued on 23 December 
and is current for interval 24 December only. Depressed MUFs 
expected for southern Aus/NZ region today, following overnight 
geomagnetic activity. Mufs then expected to recover. Further 
degraded period expected around 28 Dec. 

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 
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