[Ips-dhfpr] IPS Daily HF Prop Report - 21 April 02

rwc rwc at ips.gov.au
Mon Apr 22 09:57:06 EST 2002


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 21/2330Z APRIL 2002 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (21 APRIL) 
Date   T index  Conditions    
21 Apr   103    Fair           

Flares    Max     Fadeout    Freq.  Sectors
 X1/1F    0151UT  probable   all    E. Asia/Aust.

MUFs:
   Equatorial PNG Region:
      Enhanced by 15% during local day,
      Enhanced by 20% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 15% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Proton event in progress, increased absorption observed.


Predicted Monthly T index for April: 113
2. FORECAST (22 APRIL - 24 APRIL)
Date   T index  Conditions       MUFs                              
22 Apr   125    Normal-fair      near predicted monthly values/depressed 
                                 5 to 10% 
23 Apr   125    Normal-fair      near predicted monthly values/depressed 
                                 5 to 10%     
24 Apr   135    Normal-fair      near predicted monthly values    
COMMENT: Due to the partial halo CME the geomagnetic activity 
may rise on 22 and 23 April. It may cause some depressions in 
MUFs. 

IPS Radio and Space Services      | email: asfc at ips.gov.au
PO Box 1386                       | WWW: http://www.ips.gov.au/asfc
Haymarket NSW 1240  AUSTRALIA     | FTP: ftp://ftp.ips.gov.au/users/asfc/ 
tel: +61 2 9213 8010              | fax: +61 2 9213 8060 




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