[Ips-dhfpr] IPS Daily HF Prop Report - 22 April 11

rwc rwc at ips.gov.au
Sat Apr 23 09:56:19 EST 2011


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 22/2330Z APRIL 2011 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (22 APRIL) 
Date   T index  Conditions    
22 Apr    61    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.8    0459UT  possible   lower  E. Asia/Aust.
  M1.2    1554UT  possible   lower  South American/
                                    Atlantic

MUFs:
   Cocos Island Region:
      Enhanced by 25% during local day,
      Near predicted monthly values during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Depressed by 15% at times during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values to enhanced by 15%.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Predicted Monthly T index for April:  44
2. FORECAST (23 APRIL - 25 APRIL)
Date   T index  Conditions       MUFs                              
23 Apr    60    Normal           Near predicted monthly values 
24 Apr    60    Normal           Near predicted monthly values     
25 Apr    55    Normal           Near predicted monthly values    
COMMENT: IPS HF Communications Warning 27 was issued on 22 April 
and is current for interval 22-23 April (SWFs). Sporadic-E and 
Spread-F conditions were observed at times during 22 April which 
may have degraded HF conditions. Mostly normal conditions are 
expected for the next few days. Sporadic-E and Spread-F conditions 
are possible at times over the next few days. There is the chance 
of SWFs over the next 24 hours. 
----------------------------------------------------------
For an explanation of some of the terms in this report, go to
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. 
To unsubscribe from an IPS mail list either send an email to 
"MAIL_LIST"-leave at ips.gov.au or go to
http://www.ips.gov.au/mailman/listinfo/"MAIL_LIST".
Information about training can be obtained from
http://www.ips.gov.au/mailman/listinfo/ips-training.
General information is available from
http://www.ips.gov.au/mailman/listinfo/ips-info.





More information about the ips-dhfpr mailing list