[Ips-dhfpr] IPS Daily HF Prop Report - 15 December 06

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 15/2330Z DECEMBER 2006 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
+++ CORRECTED COPY - OBSERVED T INDEX ++
1. SUMMARY (15 DECEMBER) 
Date   T index  Conditions    
15 Dec    -7    Fair           

Flares    Max     Fadeout    Freq.  Sectors
  M1.4 14/2300UT  possible   lower  West Pacific

MUFs:
5 to 40% below predicted monthly values

PCA Event : Began at 0305UT 13/12, Ended at 1645UT 15/12
 

Predicted Monthly T index for December:  10
2. FORECAST (16 DECEMBER - 18 DECEMBER)
Date   T index  Conditions       MUFs                              
16 Dec   -20    Fair-poor        5 to 30% below predicted monthly 
                                 values 
17 Dec   -10    Fair             5 to 30% below predicted monthly 
                                 values     
18 Dec   -10    Fair             5 to 20% below predicted monthly 
                                 values    
COMMENT: IPS HF Communications Warning 40 was issued on 15 December 
and is current for interval 16-18 December (SWFs) . HF conditions 
and MUFS throughout the UT day were highly variable with enhancements 
from solar flare activity compounding with depressions due to 
geomagnetic activity. Ionospheric support was generally weak 
at all frequencies. HF conditions were fair to normal in Northern 
Australian/Pacific regions and fair to poor in Southern Australian/New 
Zealand regions throughout the UT day, recovering late in the 
UT day with a decline in geomagnetic activity. Expect generally 
fair conditions over Middle and Northern Australia and poor conditions 
over Southern Australian regions over the next 48 hours with 
continued high levels of geomagnetic activity. 
----------------------------------------------------------
For an explanation of some of the terms in this report, goto
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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