[Ips-dhfpr] IPS Daily HF Prop Report - 17 December 09

rwc rwc at ips.gov.au
Fri Dec 18 10:31:48 EST 2009


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 17/2330Z DECEMBER 2009 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   -10    Fair-normal    

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values with depressions to 15%
      15-20 UT. Sporadic E observed 01-07 and 09 UT.
   Niue Island Region:
      Near predicted monthly values with depressions to 40%
      01-06, 13-18 and 21-23 UT. Sporadic E observed 01-07,
      09 UT.
   Northern Australian Region:
      Near predicted monthly values with depressions to 40%
      at Darwin (03-05, 08-20 UT) and Townsville (03-06 UT).
      Sporadic E observed at Darwin (09, 15-19 UT) and
      Townsville (10, 11, 20 UT).
   Southern Australian and New Zealand Region:
      Near predicted monthly values. Depressions to 30% at
      Brisbane and Norfolk Is. 00-07, 23 UT and at Norfolk
      15-18 UT. Depressions to 25% at Canberra and Sydney
      01-08, 22-23 UT. Depressions to 15% at Christchurch
      and Hobart 00-08 UT. Sporadic E observed mostly 00-08
      and 23 UT.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to 15% depressed.
      Depressions to 25% at Macquarie Is. 14-16 UT.

PCA Event : No event.

Predicted Monthly T index for December:   1

2. FORECAST (18 DECEMBER - 20 DECEMBER)
Date   T index  Conditions       MUFs                              
18 Dec    -5    Fair-normal      Mostly near predicted monthly 
                                 values. Occasional depressions 
                                 to 30%. 
19 Dec    -5    Fair-normal      Near predicted monthly values. 
                                 Occasional depressions to 30%.     
20 Dec    -5    Fair-normal      Near predicted monthly values. 
                                 Occasional depressions to 30%.    

COMMENT: Summertime sporadic E may affect communications at times. 

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