[Ips-dhfpr] IPS Daily HF Prop Report - 24 June 15 issued 2350 UT on 24 Jun 2015

rwc rwc at ips.gov.au
Thu Jun 25 09:50:54 EST 2015


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/24 JUNE 2015 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (24 JUNE) 
Date   T index  Conditions    
24 Jun    57    Normal         

Flares: none.

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

PCA Event : 10MeV Proton/PCA Event Began at 2020UT 21/06, Ended at 0510UT 24/06

Monthly T index:
Month  T index
May      83
Jun      86
Jul      84


2. FORECAST (25 JUNE - 27 JUNE)
Date   T index  Conditions       MUFs                              
25 Jun    70    Normal           Near predicted monthly values
26 Jun    80    Normal           Near predicted monthly values    
27 Jun    90    Normal           Near predicted monthly values   

COMMENT: IPS HF Communications Warning 20 was issued on 23 June 
and is current for 23-25 Jun. Depressed MUFs observed during 
local day and night for the majority of the AUS/NZ region due 
to recent geomagnetic activity. HF conditions are expected to 
improve over the next 24-48 hours with occasional depressed periods 
for Northern AUS, Southern AUS/NZ regions. MUF's expected to 
return to near monthly normal values 27Jun. Fair ionospheric 
support still expected for high latitudes over the next 2-3 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
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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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