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

rwc rwc at ips.gov.au
Mon Jul 22 09:56:21 EST 2002


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

1. SUMMARY (21 JULY) 
Date   T index  Conditions    
21 Jul   106    Normal         

Flares    Max     Fadeout    Freq.  Sectors
 X3/-- 20/2130UT  probable   all    East Pacific/
                                    North American

MUFs:
   Equatorial PNG Region:
      Near predicted monthly values.
   Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values with some absorbtion
      at times.


PCA Event : 10Mev Proton/PCA Event Began 19 07 2002 1145UT and is in progress

Predicted Monthly T index for July: 108
2. FORECAST (22 JULY - 24 JULY)
Date   T index  Conditions       MUFs                              
22 Jul   110    Normal           near predicted monthly values 
23 Jul   110    Normal           near predicted monthly values     
24 Jul   110    Normal           Near predicted monthly values    
COMMENT: Degraded HF conditions possible for high latitudes due 
to absorbtion from PCA event. Shortwave fadeouts can be expected 
on daylight HF circuits due to active solar region rotating onto 
solar disk. 

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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