[Ips-dhfpr] IPS Daily HF Prop Report - 20 October 12 issued 2334 UT on 20 Oct 2012

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SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/20 OCTOBER 2012 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (20 OCTOBER) 
Date   T index  Conditions    
20 Oct   121    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M9.0    1814UT  probable   lower  East Pacific/
                                    North American

MUFs:
   Cocos Island Region:
      Enhanced by 20% during local day.
      Enhanced by 35% during local night.
   Niue Island Region:
      Enhanced by 15% during local day.
      Enhanced by 40% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
      Enhanced by 35% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 15% over the UT day.

PCA Event : No event.

Predicted Monthly T index for October:  81


2. FORECAST (21 OCTOBER - 23 OCTOBER)
Date   T index  Conditions       MUFs                              
21 Oct   120    Normal           Near predicted monthly values 
                                 to 15% enhanced.
22 Oct   120    Normal           Near predicted monthly values 
                                 to 15% enhanced.    
23 Oct   100    Normal           Near predicted monthly values 
                                 to 15% enhanced.   

COMMENT: Observed enhanced MUF's across the region due to sustained 
high EUV flux associated with a number of active regions on the 
visible solar disk. There is the possibility of isolated M- to 
X-class flares with associated HF fadeouts. Anticipated mild 
geomagnetic activity days one and two may produce low-latitude 
MUF variability and high latitude disturbances. There is a possibility 
of proton enhancement within the period resulting in high latitude 
ionospheric disturbances.

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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.

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