[Ips-wsgr] IPS Weekly Solar and Geophysical Report (19 June 09)

[rwc]

SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 19 JUNE 2009, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (12 JUNE - 18 JUNE)
Date     12    13    14    15    16    17    18
10cm     69    68    68    67    68    68    68
AFr       1     3     4     4     4     1 (  2)
Aaus      1     2     3     3     2     1 (  1)
T         5    -1    11     2     3    -3    -3

Solar:        Solar flare activity
Geomagnetic:  Geomagnetic activity observed for Australian region.
Frequencies:  Australian ionospheric F2 critical frequencies

12 Jun 
Solar:        Very low
Geomagnetic:  Quiet 
Frequencies:  
   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 
Solar:        Very low
Geomagnetic:  Quiet 
Frequencies:  
   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 
Solar:        Very low
Geomagnetic:  Quiet 
Frequencies:  
   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 
Solar:        Very low
Geomagnetic:  Quiet 
Frequencies:  
   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 
Solar:        Very low
Geomagnetic:  Quiet 
Frequencies:  
   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.

17 Jun 
Solar:        Very low
Geomagnetic:  Quiet 
Frequencies:  
   Equatorial PNG/Niue Region:
      Depressions of 15-35% at Vanimo. Near predicted
      monthly values at Niue with depressions to 30% 01-05,
      15-17 and 22-23 UT. Night spread F observed at Niue.
   Northern Australian Region:
      Depressions of 15-30% 00-09 UT then near predicted
      monthly values. Night spread F observed at most
      stations.
   Southern Australian and New Zealand Region:
      Near predicted monthly values with enhancements to 45%
      08-20 UT observed at Canberra, Christchurch, Hobart and
      Sydney. Depressions to 30% observed at Norfolk Is.
      15-19 UT. Night spread F observed at Brisbane and
      Norfolk Is.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values. Depressions to 30% at
      Casey 06-10 UT.

18 Jun 
Solar:        Very low
Geomagnetic:  Quiet 
Frequencies:  
   Equatorial PNG/Niue Region:
      Depressions to 40% 00-17 UT then near predicted
      monthly values at Vanimo. Near predicted monthly
      values at Niue apart from depressions to 30% 02-05 UT.
      Night spread F observed at both stations.
   Northern Australian Region:
      Near predicted monthly values with depressions to 30%
      mostly around 00-06, 16-21 UT. Some night spread F
      observed.
   Southern Australian and New Zealand Region:
      Near predicted monthly values. Depressions to 30%
      03-06, 12-15 UT at Brisbane and 11-17 UT at Norfolk
      Is. Night spread F observed at both stations.
      Enhancements to 40% at other stations 08-20 UT.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values.

2. FORECAST (19 JUNE - 25 JUNE)
Solar: Very low

Geomagnetic: Quiet to unsettled conditions.

Frequencies: Near predicted monthly values. Occasional
             depressions to 30% possible.

For an explanation of some of the terms in this report, go to
http://www.ips.gov.au/1/2/1.

IPS Radio and Space Services        email: asfc at ips.gov.au
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