[Ips-dhfpr] IPS Daily HF Prop Report - 21 February 10

rwc rwc at ips.gov.au
Mon Feb 22 10:31:08 EST 2010


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 21/2330Z FEBRUARY 2010 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (21 FEBRUARY) 
Date   T index  Conditions    
21 Feb    46    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 30% during local day,
      Enhanced by 110% during local night.
   Niue Island Region:
      Near predicted monthly values during local day,
      Enhanced by 15% during local night.
      Enhanced by 20% after local dawn.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 35% during local night.
      Enhanced by 25% after local dawn.
   Southern Australian and New Zealand Region:
      Enhanced by 20% during local day,
      Enhanced by 35% during local night.
      Enhanced by 20% after local dawn.
   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 (22 FEBRUARY - 24 FEBRUARY)
Date   T index  Conditions       MUFs                              
22 Feb    40    Normal           5 to 30% above predicted monthly 
                                 values 
23 Feb    40    Normal           5 to 30% above predicted monthly 
                                 values     
24 Feb    30    Normal           5 to 25% above predicted monthly 
                                 values    
COMMENT: Ionospheric conditions in the Australian/NZ region were 
elevated compared with predicted monthly values due to strong 
EUV from the three sunspot regions on the disc. Nearly similar 
conditions may be expected for the next two to three days with 
perhaps a slight reduction in MUFs on the third day as one of 
the active regions rotates off the disc. 
----------------------------------------------------------
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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