[Ips-whfpr] IPS Weekly Prop. Report (18 September 02)

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 18/0200Z SEPTEMBER 2002 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST
1. SUMMARY (11 SEPTEMBER - 17 SEPTEMBER)
Date   T index   Conditions        
11 Sep  114      Normal-fair       
MUFS:
   Equatorial PNG Region:
      Enhanced by 40% during local day,
      Enhanced by 65% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Enhanced by 35% during local night.
      Depressed 10-15% after local dawn.
   Southern Australian and New Zealand Region:
      Depressed 15% local day.
      Enhanced by 40% during local night.
      Depressed 15-20% after local dawn.
   Antarctic Region (Casey/Scott Base):
      Enhanced by 25% over the UT day.
      Some spread F and absorption observed.


12 Sep  124      Normal-fair       
MUFS:
   Equatorial PNG Region:
      Enhanced 25-50%
   Northern Australian Region:
      Enhanced by 15% during local day,
      Enhanced by 35% during local night.
   Southern Australian and New Zealand Region:
      Some Southern Region sites depressed 15% 
      during local day yesterday.
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Scott Base):
      Some spread F observed, mildly depressed.


13 Sep  140      Normal-fair       
MUFS:
   Equatorial PNG Region:
      Enhanced by 30% during local day,
      Enhanced by 60% during local night.
   Northern Australian Region:
      Enhanced by 15% during local day,
      Enhanced by 55% during local night.
   Southern Australian and New Zealand Region:
      Enhanced by 20% during local day,
      Enhanced by 30% during local night.
   Antarctic Region (Casey/Scott Base):
      Enhanced by 35% over the UT day.


14 Sep  138      Normal            
MUFS:
   Equatorial PNG Region:
     Enhanced by 40% during local day,
     Enhanced by 65% during local night.
     Enhanced by 30% after local dawn.
  Northern Australian Region:
     Enhanced by 20% during local day,
     Enhanced by 40% during local night.
  Southern Australian and New Zealand Region:
     Enhanced by 15% during local day,
     Enhanced by 20% during local night.
     Enhanced by 20% after local dawn.
  Antarctic Region (Casey/Scott Base):
     Enhanced by 30% over the UT day.


15 Sep  152      Normal            
MUFS:
15 to 30% above predicted monthly values


16 Sep  152      Normal            
MUFS:
15 to 30% above predicted monthly values


17 Sep  157      Normal            
MUFS:
15 to 30% above predicted monthly values


Predicted Monthly T index for September:  96
2. FORECAST (18 SEPTEMBER - 24 SEPTEMBER) 
MUFS: Enhanced 15 to 20 %.
Propagation conditions: Good. Isolated SWfs possible. 
T index:  145

3. OUTLOOK (25 SEPTEMBER - 25 OCTOBER)
Mildly degraded HF propagation conditions possible:
04-Oct to 05-Oct,08-Oct to 9-Oct.

PEASE NOTE:
At this time of the solar cycle, space weather conditions
are frequently determined by short timescale events, not
able to be forecasted a week in advance.

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