[Ips-dhfpr] IPS Daily HF Prop Report - 18 October 05

rwc rwc at ips.gov.au
Wed Oct 19 09:56:49 EST 2005


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 18/2330Z OCTOBER 2005 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (18 OCTOBER) 
Date   T index  Conditions    
18 Oct    10    Normal         

Flares: none.

MUFs:
near predicted monthly values

PCA Event : No event.

Predicted Monthly T index for October:  23
2. FORECAST (19 OCTOBER - 21 OCTOBER)
Date   T index  Conditions       MUFs                              
19 Oct    10    Normal           10 to 20% below predicted monthly 
                                 values 
20 Oct    12    Normal           10 to 20% below predicted monthly 
                                 values     
21 Oct    14    Normal           5 to 10% below predicted monthly 
                                 values    
COMMENT: The equatorial ionosphere is still showing a strong 
depression at night in some locations. Mid-latitudes appear mostly 
normal. There was evidence of nightime sporadi E at sub-quatorial 
latitudes (e.g. Darwin) and spread F conditions a southrnsites 
(e.g. Hobart, Macquarie Is). High latitudes are still moderately 
disturbed by remnant polar cap convective flows from the last 
days extended geomagnetic merging with the solar magnetic field 
(IMF), which is now on the wane. 
----------------------------------------------------------
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.

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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