[Ips-dhfpr] IPS Daily HF Prop Report - 23 January 12 issued 2355 UT on 23 Jan 2012

Regional Warning Centre rwc at ips.gov.au
Tue Jan 24 10:55:34 EST 2012


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 23/2330Z JANUARY 2012 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (23 JANUARY) 
Date   T index  Conditions    
23 Jan    47    Fair-poor      

Flares    Max     Fadeout    Freq.  Sectors
  M1.1    0322UT  possible   lower  E. Asia/Aust.
  M8.7    0400UT  probable   lower  E. Asia/Aust.

MUFs:
   Cocos Island Region:
      No data.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Depressed by 25% during local day.
      Depressed by 20% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 30% during local day.
      Depressed by 20% during local night.
      Enhanced by 20% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 25% over the UT day.
      Proton event in progress, increased absorption observed.

PCA Event : 10Mev Proton/PCA Event Began 23 01 2012 0545UT and is in progress

Predicted Monthly T index for January:  76
2. FORECAST (24 JANUARY - 26 JANUARY)
Date   T index  Conditions       MUFs                              
24 Jan    70    Poor             Near predicted monthly values/depressed 
                                 15 to 30% 
25 Jan    40    Poor             20 to 40% below predicted monthly 
                                 values     
26 Jan    50    Normal-fair      15 to 30% below predicted monthly 
                                 values    

COMMENT: Significant depressions were observed during 23 January 
as the result of enhanced geomagnetic activity observed during 
22-23 January. HF conditions are expected to be mostly normal 
during the first half of the UT day of 24 January, becoming significantly 
degraded in the latter half of the UT day and into the UT day 
of 25 January due to anticipated increased 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
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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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