[Ips-dhfpr] IPS Daily HF Prop Report - 21 April 11

rwc rwc at ips.gov.au
Fri Apr 22 10:07:43 EST 2011


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 21/2330Z APRIL 2011 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (21 APRIL) 
Date   T index  Conditions    
21 Apr    57    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 15% during local day,
      Depressed by 15% at times during local night.
   Niue Island Region:
      Enhanced by 15% during local day,
      Near predicted monthly values 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 April:  44
2. FORECAST (22 APRIL - 24 APRIL)
Date   T index  Conditions       MUFs                              
22 Apr    55    Normal           near predicted monthly values 
23 Apr    55    Normal           Near predicted monthly values     
24 Apr    55    Normal           Near predicted monthly values    
COMMENT: Sporadic-E and Spread-F conditions were observed at 
times during 21 April which may have degraded HF conditions. 
Mostly normal conditions are expected for the next few days. 
Sporadic-E and Spread-F conditions are possible at times over 
the next few days. There is the small chance of minor SWFs over 
the next few days. 
----------------------------------------------------------
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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