[Ips-dhfpr] IPS Daily HF Prop Report - 23 June 08

rwc rwc at ips.gov.au
Tue Jun 24 09:42:18 EST 2008


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 23/2330Z JUNE 2008 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (23 JUNE) 
Date   T index  Conditions    
23 Jun    -1    Normal         

Flares: none.

MUFs:
   Equatorial PNG/Niue Region:
      Depressed by 15% during local day,
      Depressed by 15% during local night.
   Northern Australian Region:
      Depressed by 15% during local day,
      Near predicted monthly values during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Enhanced by 20% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 25% over the UT day.

PCA Event : No event.

Predicted Monthly T index for June:   5
2. FORECAST (24 JUNE - 26 JUNE)
Date   T index  Conditions       MUFs                              
24 Jun     0    Normal           about 10% below predicted monthly 
                                 values 
25 Jun     0    Normal           about 10% below predicted monthly 
                                 values     
26 Jun     4    Normal           near predicted monthly values    
COMMENT: Australasian region ionosphere was mostly normal over 
the UT day. Spread-F was prevalent in the north at near and sub-equatorial 
latitudes and at night at many mid-latitude stations. There were 
sharp pre-dusk MUF enhancements followed by shallow night depressions 
in the Equatorial/N.Aus region although on average MUFs were 
down by 15% in this region. MUFs in the S.Aus/NZ/Antarctic regions 
were mostly near or above predicted monthly values. Expect mostly 
normal HF conditions with MUFs slightly below monthly values 
24 and 25 Jun. A predicted small solar coronal hole (see geomagnetic 
section) may slightly enhance conditions on the 26th. 
----------------------------------------------------------
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. 
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"





More information about the ips-dhfpr mailing list