[Ips-dhfpr] IPS Daily HF Prop Report - 25 October 08

rwc rwc at ips.gov.au
Sun Oct 26 10:13:26 EST 2008


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 25/2330Z OCTOBER 2008 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (25 OCTOBER) 
Date   T index  Conditions    
25 Oct   -22    Fair-normal    

Flares: none.

MUFs:
   Equatorial PNG/Niue Region:
      Depressed by 15% during local day,
      Depressed by 45% during local night.
   Northern Australian Region:
      Depressed by 20% during local day,
      Depressed by 25% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 15% during local day,
      Near predicted monthly values during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Predicted Monthly T index for October:   2
2. FORECAST (26 OCTOBER - 28 OCTOBER)
Date   T index  Conditions       MUFs                              
26 Oct   -18    Normal           Mostly near predicted monthly 
                                 values. Occasional depressions 
                                 to 30%. 
27 Oct   -18    Normal           Mostly near predicted monthly 
                                 values. Occasional depressions 
                                 to 30%.     
28 Oct   -15    Normal           Mostly near predicted monthly 
                                 values. Occasional depressions 
                                 to 30%.    
COMMENT: Significant MUF depressions and periods of disturbance 
observed in the Equatorial/Northern Australian regions. Mild 
to moderate depressions extending at times to Central Aus latitudes. 
Periods of spread-F conditions observed S Aus, mainly local night. 
Similar ionospheric conditions may be expected for the next three 
days. Variable and at times poor HF propagation conditions possible 
Equatorial/N Aus regions. 
----------------------------------------------------------
For an explanation of some of the terms in this report, go to
http://www.ips.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.

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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