[Ips-dhfpr] IPS Daily HF Prop Report - 18 September 13 issued 2330 UT on 18 Sep 2013

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/18 SEPTEMBER 2013 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (18 SEPTEMBER) 
Date   T index  Conditions    
18 Sep    65    Fair-normal    

Flares: none.

MUFs:
   Cocos Island Region:
      Depressed by 10-30% during 01-07 UT and 10-23 UT.
      No day time enhancement. 
   Niue Island Region:
      Depressed by 10-30% during 00-06 UT and 12-18 UT.
      Enhanced by 5-20% during 08-11 UT.
   Northern Australian Region:
      Depressed by 5-30% for most of the day.
      Occasionally at predicted monthly values 
   Southern Australian and New Zealand Region:
      Depressed 5-10% for much of the day. 
      Slightly enhanced during 10-15 UT. 
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Aug      73
Sep      75
Oct      73


2. FORECAST (19 SEPTEMBER - 21 SEPTEMBER)
Date   T index  Conditions       MUFs                              
19 Sep    70    Normal           Near predicted monthly values
20 Sep    75    Normal           Near predicted monthly values    
21 Sep    75    Normal           Near predicted monthly values   

COMMENT: Ionospheric support for HF propagation were moderately 
depressed for the Australian region during 18 September. The 
Perth region was an exception with enhancements of 5-35% during 
12-23 UT. The 10.7 cm solar flux is trending upwards and this 
suggests HF propagation support will return to predicted monthly 
values in coming days.

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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.

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