[Ips-dhfpr] IPS Daily HF Prop Report - 26 July 04

rwc rwc at ips.gov.au
Tue Jul 27 09:57:38 EST 2004


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 26/2330Z JULY 2004 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (26 JULY) 
Date   T index  Conditions    
26 Jul     6    Fair-poor      

Flares    Max     Fadeout    Freq.  Sectors
 M1/SF    0552UT  possible   lower  E. Asia/Aust.
 M1/2N    1730UT  possible   lower  South American/
                                    Atlantic

MUFs:
   Equatorial PNG Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Depressed by 20% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 35% during local day,
      Depressed by 35% during local night.
   Antarctic Region (Casey/Scott Base):
      Proton event in progress, increased absorption observed.


PCA Event : 10Mev Proton/PCA Event Began 25 07 2004 1920UT and is in progress

Predicted Monthly T index for July:  39
2. FORECAST (27 JULY - 29 JULY)
Date   T index  Conditions       MUFs                              
27 Jul     0    Poor             depressed 10 to 20%/near predicted 
                                 monthly values 
28 Jul    10    Fair             depressed 10 to 20%/near predicted 
                                 monthly values     
29 Jul    40    Normal-Fair      Near predicted monthly values    
COMMENT: IPS HF Communications Warning 32 was issued on 26 July 
and is current for interval 26-28 July (SWFs) . Southern region 
MUFs depressed after local dawn this morning, following continued 
geomangetic storm activity. Minor degradation periods in HF conditions 
are expected for northern Australia regions over the next 24 
hours. Depressed conditions for southern regions of AUS/NZ are 
expected over the next 2 days. 
----------------------------------------------------------
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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