[Ips-dhfpr] IPS Daily HF Prop Report - 07 February 10

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 07/2330Z FEBRUARY 2010 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (07 FEBRUARY) 
Date   T index  Conditions    
07 Feb    16    Normal         

Flares    Max     Fadeout    Freq.  Sectors
 M1/-- 06/2137UT  possible   lower  East Pacific/
                                    North American
 M6/1N    0224UT  probable   lower  E. Asia/Aust.

MUFs:
   Cocos Island Region:
      Depressed by 20% during local day,
      Near predicted monthly values during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 15% during local night.
   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 February:   4
2. FORECAST (08 FEBRUARY - 10 FEBRUARY)
Date   T index  Conditions       MUFs                              
08 Feb    20    Normal           Near predicted monthly values 
09 Feb    10    Normal           Near predicted monthly values     
10 Feb     5    Normal           Near predicted monthly values    

COMMENT: IPS HF Communications Warning 2 was issued on 7 February 
and is current for interval 7-8 February (SWFs) . Ionospheric 
conditions in the Australian region were mostly normal over the 
UT day with MUFs near predicted monthly values. An M6 solar flare 
at 0224UT produced a short wave fade centred over eastern Australia 
affecting HF circuits over the Australian region for 15-20 minutes. 
The solar active region which produced the M-class flare continues 
to flare and may cause further fades in the sunlit hemisphere 
throughout the day. Otherwise expect mostly normal HF conditions 
08 Feb with MUFs near predicted monthly values. 

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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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