[Ips-dhfpr] IPS Daily HF Prop Report - 27 April 06

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 27/2330Z APRIL 2006 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (27 APRIL) 
Date   T index  Conditions    
27 Apr    31    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M7.9    1552UT  probable   lower  South American/
                                    Atlantic

MUFs:
about 15% above predicted monthly values

PCA Event : No event.

Predicted Monthly T index for April:  16
2. FORECAST (28 APRIL - 30 APRIL)
Date   T index  Conditions       MUFs                              
28 Apr    31    Normal           10 to 25% above predicted monthly 
                                 values 
29 Apr    31    Normal           10 to 25% above predicted monthly 
                                 values     
30 Apr    32    Normal           10 to 25% above predicted monthly 
                                 values    
COMMENT: Mostly normal HF conditions observed over the UT day. 
Some low latitude stations again observed nighttime enhancements, 
including pre-dusk or pre-dawn bulges depending on location. 
PNG sector seemed to most affected with strong nightime absorption 
also observed at Vanimo. Strong sporadic activity observed over 
NZ pre-dawn. High latitudes near the polar cap appeared enhanced. 
Mostly normal HF conditions expected for the next three days 
with a slightly strengthening ionosphere due to extra ionising 
solar radiation from active regions 875,876 and 877. MUFs generally 
above predicted monthly values by 10-25%. 
----------------------------------------------------------
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
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 

IMPORTANT: This e-mail, including any attachments, may contain,confidential
or copyright information.  The views expressed in this message are those of
the individual sender, unless specifically stated to be the views of IPS.
If you are not the intended recipient, please contact the sender immediately
and delete all copies of this e-mail and attachments. Occasionally IPS sends 
email promoting IPS products and services to its mailing list customers. 
If you do not wish to receive this promotional material please email 
no-spam at ips.gov.au with the subject header:UNSUBSCRIBE"