[Ips-dhfpr] IPS Daily HF Prop Report - 02 May 13 issued 2330 UT on 02 May 2013

Regional Warning Centre rwc at ips.gov.au
Fri May 3 09:30:22 EST 2013


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/02 MAY 2013 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (02 MAY) 
Date   T index  Conditions    
02 May    70    Normal-fair    

Flares    Max     Fadeout    Freq.  Sectors
  M1.1    0511UT  possible   lower  E. Asia/Aust.

MUFs:
   Cocos Island Region:
      Enhanced by 40% during local day.
      Near predicted monthly values during local night.
      Enhanced by 25% after local dawn.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   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):
      Depressed by 15% over the UT day.

PCA Event : No event.

Predicted Monthly T index for May:  69


2. FORECAST (03 MAY - 05 MAY)
Date   T index  Conditions       MUFs                              
03 May    75    Normal           Near predicted monthly values
04 May    70    Normal           Near predicted monthly values    
05 May    70    Normal           Near predicted monthly values   

COMMENT: As the effects of yesterdays geomagnetic disturbances 
washed through the regional ionosphere, there were quite large 
variations in available MUFs, both enhanced and depressed. Conditions 
should settle across 3rd May. Passage of a solar sector boundary 
4th May with Unsettled geomagnetic activity may cause greater 
MUF variability and to a lesser extent this will continue 5/6th 
May due to a weak glancing blow from a northward directed CME 
launched from AR1731 0510UT 2nd May.

----------------------------------------------------------
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 
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