[Ips-dhfpr] IPS Daily HF Prop Report - 21 January 04

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 21/2330Z JANUARY 2004 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (21 JANUARY) 
Date   T index  Conditions    
21 Jan    70    Normal         

Flares: none.

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


PCA Event : No event.

Predicted Monthly T index for January:  56
2. FORECAST (22 JANUARY - 24 JANUARY)
Date   T index  Conditions       MUFs                              
22 Jan    20    Poor             Depressed 20 to 30%/near predicted 
                                 monthly values 
23 Jan    30    Fair             Depressed 10 to 20%/near predicted 
                                 monthly values     
24 Jan    60    Normal           Near predicted monthly values    
COMMENT: IPS HF Communications Warning 8 was issued on 21 January 
and is current for interval 21-23 January. Significant depressions 
are expected at times for 22-23 January as the result of anticipated 
significant geomagnetic activity levels. Anticipated geomagnetic 
activity is a consequence of recent solar flare activity. Another 
shock arrival is possible after Jan 23, but this event is subject 
to further analysis. 

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 
tel: +61 2 9213 8010              | fax: +61 2 9213 8060 

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