[Ips-dhfpr] IPS Daily HF Prop Report - 17 August 02

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 17/2330Z AUGUST 2002 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (17 AUGUST) 
Date   T index  Conditions    
17 Aug   152    Normal         

Flares    Max     Fadeout    Freq.  Sectors
M3.4/SF    2051UT  possible   lower  East Pacific/
                                    North American

MUFs:
   Equatorial PNG Region:
      Enhanced by 15% during local day,
      Enhanced by 75% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 30% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Enhanced by 30% during local night.
   Antarctic Region (Casey/Scott Base):
      Enhanced by 20% over the UT day.
      Some spread and absorption observed.


PCA Event : No event.

Predicted Monthly T index for August: 102
2. FORECAST (18 AUGUST - 20 AUGUST)
Date   T index  Conditions       MUFs                              
18 Aug   120    Normal-Poor      Initially enhanced 15%, then 
                                 depressed 15-20%. 
19 Aug    85    Normal-Fair      depressed 10 to 20%/near predicted 
                                 monthly values     
20 Aug   125    Normal           near normal to 15% enhanced.    
COMMENT: IPS HF Communications Warning 39 was issued on 16 August 
and is current for interval 18-19 August. Strongly degraded conditions 
expected local night hours 18 Aug, southern Aus/NZ region. Fadeouts 
can be expected on daylight HF circuits. 

IPS Radio and Space Services      | email: asfc at ips.gov.au
PO Box 1386                       | WWW: http://www.ips.gov.au/asfc
Haymarket NSW 1240  AUSTRALIA     | FTP: ftp://ftp.ips.gov.au/users/asfc/ 
tel: +61 2 9213 8010              | fax: +61 2 9213 8060