[Ips-dhfpr] IPS Daily HF Prop Report - 28 May 10

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 28/2330Z MAY 2010 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (28 MAY) 
Date   T index  Conditions    
28 May     8    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Depressed by 20% during local day,
      Near predicted monthly values during local night.
   Niue Island Region:
      Depressed by 25% during local day,
      Near predicted monthly values during local night.
   Northern Australian Region:
      Depressed by 15% during local day,
      Near predicted monthly values during local night.
   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 May:  24
2. FORECAST (29 MAY - 31 MAY)
Date   T index  Conditions       MUFs                              
29 May     7    Normal-fair      near predicted monthly values/depressed 
                                 5 to 20% 
30 May     7    Normal-fair      near predicted monthly values/depressed 
                                 5 to 15%     
31 May     7    Normal-fair      near predicted monthly values/depressed 
                                 5 to 10%    
COMMENT: Mild MUF depressions were observed in the Australian 
region due to the lower EUV levels emitted from the sun, resulting 
from a low number of sunspots on the visible solar disc. Minor 
to moderated degradations in HF conditions may be expected from 
29 to 31 May due to an expected rise in geomagnetic activity 
levels on these days. 
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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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Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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