[Ips-dhfpr] IPS Daily HF Prop Report - 04 October 15 issued 2330 UT on 04 Oct 2015

[Regional Warning Centre]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/04 OCTOBER 2015 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (04 OCTOBER) 
Date   T index  Conditions    
04 Oct    39    Depressed         

Flares    Max     Fadeout    Freq.  Sectors
 M1.0    0241 UT  possible   lower  E. Asia/Aust.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 45% during local night.
   Niue Island Region:
      Mostly near predicted monthly values.
   Northern Australian Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Depressed by 15% during local day.
      Depressed by 35% during local night.
      Depressed by 20% 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
Sep      35
Oct      70
Nov      68


2. FORECAST (05 OCTOBER - 07 OCTOBER)
Date   T index  Conditions     MUFs                              
05 Oct    30    Depressed      10 to 45% below predicted monthly 
                               values
06 Oct    35    Depressed      0 to 40% below predicted monthly 
                               values    
07 Oct    40    Moderately     0 to 30% below predicted monthly 
                Depressed      values

COMMENT: Conditions for HF radio propagation were depressed to 
mildly depressed throughout the Australian region during 04 Oct 
UT. T indices were in the approximate range 15 to 65 for individual 
stations. For example, the T index was only 15 for Norfolk Island, 
27 for Hobart and 38 for Brisbane, but as large as 62 for Niue. 
Conditions are expected to be depressed again today, 05 Oct.

----------------------------------------------------------
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.

Space Weather Services              email: asfc at ips.gov.au
Bureau of Meteorology
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