[Ips-dhfpr] IPS Daily HF Prop Report - 28 September 15 issued 2330 UT on 28 Sep 2015

[Regional Warning Centre]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/28 SEPTEMBER 2015 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (28 SEPTEMBER) 
Date   T index  Conditions    
28 Sep    51    Mildly depressed         

Flares    Max     Fadeout    Freq.  Sectors
 M7.6    1458 UT  probable   lower  South American/
                                    Atlantic

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Niue Island Region:
      Depressed by 15% during local day.
      Depressed by 15% during local night.
   Northern Australian Region:
      Depressed by 20% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
   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
Aug      46
Sep      75
Oct      73


2. FORECAST (29 SEPTEMBER - 01 OCTOBER)
Date   T index  Conditions         MUFs                              
29 Sep    55    Mildly depressed   0 to 20% below predicted monthly 
                                   values
30 Sep    60    Mildly depressed   0 to 15% below predicted monthly 
                                   values    
01 Oct    55    Mildly depressed   0 to 20% below predicted monthly 
                                   values   

COMMENT: Conditions for HF radio propagation were mildly depressed 
at mid-latitude stations and more depressed for low latitude 
stations throughout the Australian region during 28 Sep UT. For 
example, the daily T index was 60 for Brisbane and 42 for Niue. 
The conditions are gradually trending back toward predicted monthly 
values. Mild depressions are expected during the next 2 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.

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