[Ips-dhfpr] IPS Daily HF Prop Report - 06 August 12 issued 2344 UT on 06 Aug 2012

rwc rwc at ips.gov.au
Tue Aug 7 09:44:12 EST 2012


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/06 AUGUST 2012 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (06 AUGUST) 
Date   T index  Conditions    
06 Aug    89    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.6    0438UT  possible   lower  E. Asia/Aust.

MUFs:
   Cocos Island Region:
      Enhanced by 15% during local day.
      Depressed by 25% during local night.
   Niue Island Region:
      Enhanced by 30% during local day.
      Enhanced by 15% 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):
      Enhanced by 15% over the UT day.

PCA Event : No event.

Predicted Monthly T index for August:  77


2. FORECAST (07 AUGUST - 09 AUGUST)
Date   T index  Conditions       MUFs                              
07 Aug    80    Normal           0 to 10% above predicted monthly 
                                 values
08 Aug    85    Normal           0 to 10% below predicted monthly 
                                 values    
09 Aug    80    Normal           Near predicted monthly values   

COMMENT: HF conditions were Normal 06-Aug, with MUFs mostly near 
or above predicted monthly values at mid-latitudes, more variable 
at low-latitudes and enhanced at high latitudes. The T index 
is higher than the predicted monthly value due to a large number 
of smaller sunspots emitting ionising EUV. Expect mostly Normal 
to slightly enhanced MUF conditions for the 07 Aug. On 8 Aug 
a CME should strike a glancing blow causing Unsettled-Active 
geomagnetic conditions, which should slightly depress MUFs, with 
recovery on the 9th.

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