[Ips-dhfpr] IPS Daily HF Prop Report - 12 September 05

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 12/2330Z SEPTEMBER 2005 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (12 SEPTEMBER) 
Date   T index  Conditions    
12 Sep     6    Normal-fair    

Flares    Max     Fadeout    Freq.  Sectors
  M1.3    0702UT  possible   lower  Mid East/Indian
  M4.5    0849UT  possible   lower  Mid East/Indian
  M6.1    0904UT  probable   lower  Mid East/Indian
  M1.5    2009UT  possible   lower  East Pacific/
                                    North American

MUFs:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Depressed by 25% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Depressed by 30% during local night.
      Depressed by 35% after local dawn.
   Southern Australian and New Zealand Region:
      Depressed by 25% during local day,
      Depressed by 20% during local night.
      Depressed by 25% after local dawn.
   Antarctic Region (Casey/Scott Base):
      Proton event in progress, increased absorption observed.

PCA Event : 10Mev Proton/PCA Event Began 08 09 2005 0235UT and is 
	in progress.

Predicted Monthly T index for September:  24
2. FORECAST (13 SEPTEMBER - 15 SEPTEMBER)
Date   T index  Conditions       MUFs                              
13 Sep    15    Normal-fair      near predicted monthly values 
                                 /depressed 5 to 15% 
14 Sep    20    Normal           near predicted monthly values 
                                 /depressed 5%     
15 Sep    25    Normal           Near predicted monthly values    
COMMENT: IPS HF Communications Warning 34 was issued on 
12 September and is current for interval 13-15 September 
(SWFs) . HF conditions may show mild to moderate degradations 
in Aus/NZ regions, especially in the southern regions on 
13 September and at times on 14 September. 
----------------------------------------------------------
For an explanation of some of the terms in this report, goto
http://www.ips.gov.au, and follow links to Educational->
Gloassary on Solar Terrestrial Terms.

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