[Ips-dhfpr] IPS Daily HF Prop Report - 31 December 04

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 31/2330Z DECEMBER 2004 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (31 DECEMBER) 
Date   T index  Conditions    
31 Dec    79    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.2    1445UT  possible   lower  South American/
                                    Atlantic

MUFs:
   Equatorial PNG Region:
     No data available during local day,
     Depressed by 25% during local night.
  Northern Australian Region:
     Enhanced by 15% during local day,
     Enhanced by 40% during local night.
  Southern Australian and New Zealand Region:
     Near predicted monthly values.
  Antarctic Region (Casey/Scott Base):
     Near predicted monthly values over the UT day.

PCA Event : No event.

Predicted Monthly T index for December:  35
2. FORECAST (01 JANUARY - 03 JANUARY)
Date   T index  Conditions       MUFs                              
01 Jan    60    Normal-Fair      enhanced 15% local day, then depressed 10 to 15%
02 Jan    10    Normal-Fair      Depressed 15% after local dawn, 
                                 then recovering     
03 Jan    35    Normal           Near predicted monthly values    
COMMENT: IPS HF Communications Warning 57 was issued on 31 December 
and is current for interval 2-3 January. Good HF conditions expected 
early today. Depressed conditions expected 02 Jan, possible extending 
to 03 Jan due to anticipated arrival of coronal mass ejections. 
Effects are expected to be strongest for southern Aus/NZ region. 
----------------------------------------------------------
For an explanation of some of the terms in this report, goto
http://www.ips.gov.au, and follow links to Educational->
Gloassary on Solar Terrestrial Terms.

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