[Ips-dhfpr] IPS Daily HF Prop Report - 13 February 09

rwc rwc at ips.gov.au
Sat Feb 14 10:44:26 EST 2009


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 13/2330Z FEBRUARY 2009 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (13 FEBRUARY) 
Date   T index  Conditions    
13 Feb   -15    Normal-fair    

Flares: none.

MUFs:
   Equatorial PNG/Niue Region:
      Depressed by 20% during local day,
      Near predicted monthly values during local night.
   Northern Australian Region:
      Depressed by 20% during local day,
      Near predicted monthly values during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Depressed by 25% 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:   6
2. FORECAST (14 FEBRUARY - 16 FEBRUARY)
Date   T index  Conditions       MUFs                              
14 Feb   -10    Normal-fair      depressed 10 to 20%/near predicted 
                                 monthly values 
15 Feb   -15    Normal-poor      depressed 10 to 30%/near predicted 
                                 monthly values     
16 Feb   -20    Normal-poor      depressed 10 to 30%/near predicted 
                                 monthly values    
COMMENT: IPS HF Communications Warning 4 was issued on 12 February 
and is current for interval 12-14 February. Depressed conditions 
observed during local day for Equatorial/Northern AUS regions 
with some disturbed periods. Notable sporadic E observed again 
for low to mid latitudes over the last 24 hours. Southern AUS/NZ 
regions had mostly normal conditions but with depressed MUFs 
during local night. Antarctic regions had mostly normal ionospheric 
support. MUF depressions ranging from 10% to 30% are expected 
for low to mid latitudes over the next 3 days with possible disturbed 
conditions for Antarctic regions. 
----------------------------------------------------------
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
PO Box 1386                         WWW: http://www.ips.gov.au
Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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