[Ips-dhfpr] IPS Daily HF Prop Report - 24 October 02

rwc rwc at ips.gov.au
Fri Oct 25 10:13:24 EST 2002


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 24/2330Z OCTOBER 2002 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (24 OCTOBER) 
Date   T index  Conditions    
24 Oct   112    Normal         

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:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values,
      Depressed by 30% after local dawn.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.


PCA Event : No event.

Predicted Monthly T index for October:  94
2. FORECAST (25 OCTOBER - 27 OCTOBER)
Date   T index  Conditions       MUFs                              
25 Oct    60    Fair             depressed 5 to 15%/near predicted 
                                 monthly values (Southern Aust.Reg.)
25 Oct   110    Normal           Northern Australian regions

26 Oct   110    Normal-Fair      depressed 5 to 10%/near predicted 
                                 monthly values     
27 Oct   115    Normal           near predicted monthly values    
COMMENT: IPS HF Communications Warning 61 was issued on 24 October 
and is current for interval 25 October only. Depressions in MUFs 
have been observed in southern Australian regions this morning. 
This is due to an earlier than expected rise in the geomagnetic 
activity due to a coronal hole. Depressions in MUFs and degradations 
in HF conditions may be observed in Southern Australian regions 
during the next 2 days. HF conditions in northern Australian 
regions are not expected to have any significant effect of this 
rise in the geo-magnetic activity. 

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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