[Ips-dhfpr] IPS Daily HF Prop Report - 21 November 03

rwc rwc at ips.gov.au
Sat Nov 22 11:21:18 EST 2003


SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 21/2330Z NOVEMBER 2003 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (21 NOVEMBER) 
Date   T index  Conditions    
21 Nov   -45    Poor           

Flares    Max     Fadeout    Freq.  Sectors
M5.8/2B 20/2354UT  possible   lower  West Pacific

MUFs:
   Equatorial PNG Region:
      Depressed by 15-30% during local day,
      Depressed by 40% during local night.
   Northern Australian Region:
      Depressed by 45% during local day,
      Depressed by 25% during local night,
      Mostly near predicted monthly values 
      since local dawn.
   Southern Australian and New Zealand Region:
      Depressed by 40% during local day,
      Depressed by 30% during local night,
      Mostly near predicted monthly values 
      since local dawn.
   Antarctic Region (Casey/Scott Base):
      Depressed by 15-30% over the UT day,
      Mostly near predicted monthly values 
      since local dawn.


PCA Event : No event.

Predicted Monthly T index for November:  52
2. FORECAST (22 NOVEMBER - 24 NOVEMBER)
Date   T index  Conditions       MUFs                              
22 Nov    60    Fair-normal      near predicted monthly values/depressed 
                                 10 to 20% 
23 Nov    60    Normal-fair      depressed 10 to 20%/near predicted 
                                 monthly values     
24 Nov    70    Normal           Near predicted monthly values to enhanced    
COMMENT: IPS HF Communications Warning 90 was issued on 22 November 
and is current for interval 22-24 November (SWFs) . Severe ionospheric 
depressions were observed for most of the UT day of 22 November. 
HF conditions appear to be returning to mostly normal, with only 
mild depressions expected at times over the next few days. SWF's 
are also possible over the next few days. 

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.




More information about the ips-dhfpr mailing list