[Ips-dhfpr] IPS Daily HF Prop Report - 21 December 14 issued 2344 UT on 21 Dec 2014

rwc rwc at ips.gov.au
Mon Dec 22 10:44:12 EST 2014


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/21 DECEMBER 2014 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (21 DECEMBER) 
Date   T index  Conditions    
21 Dec   138    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.2    0735UT  possible   lower  Mid East/Indian
  M1.0    1229UT  possible   lower  European

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Niue Island Region:
      Enhanced by 40% during local day.
      Enhanced by 35% during local night.
   Northern Australian Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Southern Australian and New Zealand Region:
      Enhanced by 15% during local day.
      Enhanced by 20% 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 (22 DECEMBER - 24 DECEMBER)
Date   T index  Conditions       MUFs                              
22 Dec    80    Fair             Near predicted monthly values/depressed 
                                 10 to 30%
23 Dec   100    Normal           Near predicted monthly values    
24 Dec   122    Normal           Near to 15% above predicted 
                                 monthly values   

COMMENT: IPS Preliminary HF Communications Warning 63 was issued 
on 19 December and is current for 21-22 Dec. IPS SWF HF Communications 
Warning 64 was issued on 21 December and is current for 21-23 
Dec. MUFs were near predicted to enhanced over the UT day 21 
December. Isolated cases of sporadic E were observed in the Australian 
region. Expect near predicted values with periods of depressed 
conditions on 22 December due to an increase in geomagnetic activity. 
23-24 December should return to near predicted to enhanced conditions.

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