[Ips-dhfpr] IPS Daily HF Prop Report - 17 October 12 issued 2334 UT on 17 Oct 2012

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/17 OCTOBER 2012 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (17 OCTOBER) 
Date   T index  Conditions    
17 Oct   105    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 35% during local night.
   Niue Island Region:
      Enhanced by 25% during local day.
      Enhanced by 40% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day.
      Enhanced by 20% 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:  81


2. FORECAST (18 OCTOBER - 20 OCTOBER)
Date   T index  Conditions       MUFs                              
18 Oct   100    Normal           0 to 15% above predicted monthly 
                                 values
19 Oct   100    Normal           0 to 15% above predicted monthly 
                                 values    
20 Oct   100    Normal           0 to 15% above predicted monthly 
                                 values   

COMMENT: MUFs were enhanced above predicted monthly values due 
to enhanced EUV flux from 8 spot groups now on the solar disc 
with most likely to remain for the next 3 days. High MUF variability 
at low latitudes over 17-Oct may have been due to geomagnetic 
activity caused by a high speed solar wind speed stream from 
a coronal hole, expected to pass early 18th Oct.

----------------------------------------------------------
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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