[Ips-dhfpr] IPS Daily HF Prop Report - 17 December 14 issued 2343 UT on 17 Dec 2014

rwc rwc at ips.gov.au
Thu Dec 18 10:43:44 EST 2014


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/17 DECEMBER 2014 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (17 DECEMBER) 
Date   T index  Conditions    
17 Dec   125    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.5    0110UT  possible   lower  West Pacific
  M1.1    0151UT  possible   lower  West Pacific
  M8.7    0453UT  probable   lower  E. Asia/Aust.
  M1.4    1902UT  possible   lower  East Pacific/
                                    North American

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 30% during local night.
   Niue Island Region:
      Enhanced by 30% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day.
      Enhanced by 15% 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
Nov      113
Dec      87
Jan      87


2. FORECAST (18 DECEMBER - 20 DECEMBER)
Date   T index  Conditions       MUFs                              
18 Dec   120    Normal           Near to 15% above predicted 
                                 monthly values
19 Dec   120    Normal-fair      Near to 15% above predicted 
                                 monthly values    
20 Dec    80    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 20%   

COMMENT: IPS SWF HF Communications Warning 61 was issued on 17 
December and is current for 18-20 Dec. MUFs were near predicted 
to enhanced over the UT day 17 December. Isolated cases of sporadic 
E were observed in the eastern Australian regions. Near monthly 
predicted MUFs to slightly enhanced values are expected for the 
next 2 days. Expect near predicted values with periods of depressed 
conditions on 20 December due an increase in 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
PO Box 1386                         WWW: http://www.ips.gov.au
Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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