[Ips-whfpr] IPS Weekly Prop. Report (17 June 09)

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED AT 17/0200Z JUNE 2009 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (10 JUNE - 16 JUNE)
Date   T index   Conditions        
10 Jun   12      Normal            
MUFS:
   Equatorial PNG/Niue Region:
      Enhanced by 20% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% 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):
      Near predicted monthly values over the UT day.

11 Jun    9      Normal            
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

12 Jun    5      Normal            
MUFS:
   Equatorial PNG/Niue Region:
      Mostly near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

13 Jun   -1      Normal            
MUFS:
   Equatorial PNG/Niue Region:
      Depressed by 20% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day.
      Enhanced by 25% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

14 Jun   11      Normal            
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day.
      Enhanced by 60% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

15 Jun    2      Normal            
MUFS:
   Equatorial PNG/Niue Region:
      Mostly near predicted monthly values. Depressions to
      40% at Vanimo 10-13 UT.
   Northern Australian Region:
      Mostly near predicted monthly values. Depressions to
      about 25% at Cocos Is, Darwin and Townsville around
      17-22 UT.
   Southern Australian and New Zealand Region:
      Near predicted monthly values. Enhancements to 40% at
      Canberra, Christchurch and Sydney 08-21 UT. Night
      spread F observed at Hobart, Learmonth and Norfolk
      Is.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to 25% depressed.

16 Jun    3      Normal            
MUFS:
   Equatorial PNG/Niue Region:
      Near predicted monthly values. Depressions to 30% at
      Vanimo 12-14 UT and Niue at 02-03 UT.
   Northern Australian Region:
      Mostly near predicted monthly values. Occasional
      depressions to 30% around 00-03 and 20-23 UT.
   Southern Australian and New Zealand Region:
      Near predicted monthly values. Enhancements to 50% at
      times at Canberra, Christchurch, Hobart and Sydney
      08-20 UT. Night spread F observed at Brisbane, Hobart
      and Norfolk Is.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to 40% enhanced during
      night hours.

Predicted Monthly T index for June:   5

2. FORECAST (17 JUNE - 23 JUNE) 
MUFS: Near predicted monthly values. Occasional depressions
      to 30% possible.
Propagation conditions: Normal. No SWFs
T index:   5

3. OUTLOOK (24 JUNE - 24 JULY)
Degraded HF propagation conditions possible:
No signficant degraded periods expected.

PLEASE NOTE:
Space weather conditions can frequently be determined by short 
timescale events that cannot be forecast a week in advance,
particularly at solar maximum.

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
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Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
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