[Ips-dhfpr] IPS Daily HF Prop Report - 21 July 05

rwc rwc at ips.gov.au
Fri Jul 22 09:51:38 EST 2005


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 21/2330Z JULY 2005 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    17    Normal-fair    

Flares: none.

MUFs:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Depressed by 30% during local night.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values,
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day 
      with periods of significant degradations.

PCA Event : No event.

Predicted Monthly T index for July:  27
2. FORECAST (22 JULY - 24 JULY)
Date   T index  Conditions       MUFs                              
22 Jul    20    Normal           near predicted monthly values 
                                 to depressed 5 to 10%. 
23 Jul    25    Normal           Near predicted monthly values     
24 Jul    28    Normal           near predicted monthly values 
                                 to enhanced 5 to 10%.    
COMMENT: Minor to mild depressions in MUFs and degradations 
in HF conditions may be observed in Southern Aus/NZ regions 
on 22 July due to an anticipated continued rise in the 
geomagnetic activity level on this day. The HF conditions 
are expected to remain mostly normal in most Aus/NZ regions 
during the following two days. 
----------------------------------------------------------
For an explanation of some of the terms in this report, goto
http://www.ips.gov.au, and follow links to Educational->
Gloassary on Solar Terrestrial Terms.

IPS Radio and Space Services      | email: asfc at ips.gov.au
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