[Ips-dhfpr] IPS Daily HF Prop Report - 17 July 11

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 17/2330Z JULY 2011 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (17 JULY) 
Date   T index  Conditions    
17 Jul    38    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Depressed by 20% during local day,
      Depressed by 30% during local night.
   Niue Island Region:
      Depressed by 20% during local day,
      Depressed by 20% during local night.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Depressed by 15% during local day,
      Depressed by 25% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 15% during local day,
      Near predicted monthly values during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Predicted Monthly T index for July:  56
2. FORECAST (18 JULY - 20 JULY)
Date   T index  Conditions       MUFs                              
18 Jul    40    Normal           near predicted monthly values/depressed 
                                 10 to 20% 
19 Jul    35    Normal           near predicted monthly values/depressed 
                                 10 to 30%     
20 Jul    35    Normal-fair      near predicted monthly values/depressed 
                                 10 to 30%    
COMMENT: MUFs were depressed by ~20% during local day and night 
for Equatorial, Northern and Southern AUS/NZ regions. Poor ionospheric 
support for Antarctic regions. Similar conditions are expected 
for the next 24 hours. Disturbed geomagnetic conditions may cause 
MUF depressions of ~30% for 19Jul-20Jul for Southern AUS/NZ regions. 
----------------------------------------------------------
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://listserver.ips.gov.au/mailman/listinfo/"MAIL_LIST".
Information about training can be obtained from
http://listserver.ips.gov.au/mailman/listinfo/ips-training.
General information is available from
http://listserver.ips.gov.au/mailman/listinfo/ips-info.