[Ips-dhfpr] IPS Daily HF Prop Report - 27 May 11

rwc rwc at ips.gov.au
Sat May 28 09:48:48 EST 2011


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 27/2330Z MAY 2011 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (27 MAY) 
Date   T index  Conditions    
27 May    43    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Mostly near predicted monthly values,
      Depressed by 25% after local dawn.
   Niue Island Region:
      Depressed by 30% during local day,
      Depressed by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Depressed by 25% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 15% during local day,
      Near predicted monthly values during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 15% over the UT day.

PCA Event : No event.

Predicted Monthly T index for May:  49
2. FORECAST (28 MAY - 30 MAY)
Date   T index  Conditions       MUFs                              
28 May    35    Normal           near predicted monthly values/depressed 
                                 20 to 30% 
29 May    40    Normal           near predicted monthly values/depressed 
                                 10 to 20%     
30 May    40    Normal           near predicted monthly values/depressed 
                                 10 to 20%    

COMMENT: Minor depressed periods were observed at low latitudes 
over the previous 24 hours. Slightly enhanced periods observed 
for mid latitudes over the UT day. Depressed MUFs observed for 
high latitudes with disturbed conditions during the latter half 
of the UT day coinciding with increased geomagnetic activity. 
Minor to moderate MUFs depressions may be expected across Aus/NZ 
regions for the next 3 days due to the expected rise in 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
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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