[Ips-dhfpr] IPS Daily HF Prop Report - 21 January 15 issued 2332 UT on 21 Jan 2015

Regional Warning Centre rwc at ips.gov.au
Thu Jan 22 10:32:11 EST 2015


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/21 JANUARY 2015 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (21 JANUARY) 
Date   T index  Conditions    
21 Jan    96    Normal         

Flares: C class flares

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Niue Island Region:
      Depressed by 20% during local day.
      Near predicted monthly values during local night.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Mostly near predicted monthly values.
      Depressed by 35% after local dawn.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values.
      Depressed by 25% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Dec      106
Jan      89
Feb      89


2. FORECAST (22 JANUARY - 24 JANUARY)
Date   T index  Conditions       MUFs                              
22 Jan    60    Depressed        Depressed 15%/near predicted 
                                 monthly values
23 Jan    80    Normal           Near predicted monthly values    
24 Jan    90    Normal           Near predicted monthly values   

COMMENT: Australian region HF propagation conditions were enhanced 
at Cocos Island, Darwin and Learmonth (T=130 to 135) for most 
of Jan 21. They were mostly near predicted monthly values or 
slightly depressed further south. The conditions are depressed 
by 10% to 40% at most Australian stations this morning. This 
implies depressed conditions for the remainder of the day. HF 
propagation conditions are expected to be normal at low latitude 
stations, and near normal to depressed at mid-latitude stations 
during Jan 22.

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