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

rwc rwc at ips.gov.au
Thu Nov 21 10:47:43 EST 2002


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

1. SUMMARY (20 NOVEMBER) 
Date   T index  Conditions    
20 Nov    84    Normal-fair    

Flares    Max     Fadeout    Freq.  Sectors
 M1/SN    1807UT  possible   lower  East Pacific/
                                    North American

MUFs:
   Equatorial PNG Region:
      Enhanced by 15% during local day,
      Enhanced by 15% during local night.
   Northern Australian Region:
      Mostly near predicted monthly values,
      Depressed by 30% after local dawn.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
      Some sites 20% depressed after local dawn.
   Antarctic Region (Casey/Scott Base):
      pread F observed.


PCA Event : No event.

Predicted Monthly T index for November:  91
2. FORECAST (21 NOVEMBER - 23 NOVEMBER)
Date   T index  Conditions       MUFs                              
21 Nov    70    Normal-Fair      depressed 10 to 20%/near predicted 
                                 monthly values 
22 Nov    80    Normal-Fair      depressed 10 to 15%/near predicted 
                                 monthly values     
23 Nov    70    Normal           depressed 10 to 25%/near predicted 
                                 monthly values    
COMMENT: Depressed conditions observed after local dawn this 
morning at some sites. MUFs are expected to recover as day progresses. 
A further mild degradation can be expected for southern region 
sites from 22-24 Nov, due to anticipated coronal hole induced 
geomagnetic 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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