[Ips-dhfpr] IPS Daily HF Prop Report - 09 February 11

rwc rwc at ips.gov.au
Thu Feb 10 10:19:05 EST 2011


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 09/2330Z FEBRUARY 2011 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (09 FEBRUARY) 
Date   T index  Conditions    
09 Feb    40    Normal         

Flares    Max     Fadeout    Freq.  Sectors
 M1/SF    0131UT  possible   lower  E. Asia/Aust.

MUFs:
   Cocos Island Region:
      Mostly near predicted monthly values,
      Enhanced by 25% after local dawn.
   Niue Island Region:
      Enhanced by 15% during local day,
      Enhanced by 20% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   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:  38
2. FORECAST (10 FEBRUARY - 12 FEBRUARY)
Date   T index  Conditions       MUFs                              
10 Feb    35    Normal           near predicted monthly values 
11 Feb    20    Normal           near predicted monthly values/depressed 
                                 10 to 20%     
12 Feb    10    Normal           about 20% below predicted monthly 
                                 values    
COMMENT: The regional ionosphere was mostly near average levels 
at mid latitudes. Near equatorial stations were again highly 
variable with large daytime enhancements. MUF levels have been 
helped by increased EUV ionising radiation from AR1153 and several 
new small regions. MUFs may be slightly suppressed on the 11-12th 
Feb (UT) as a small recurrent coronal hole increases geomagnetic 
activity. 
----------------------------------------------------------
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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Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
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