[Ips-wsgr] IPS Weekly Solar and Geophysical Report (11 May 12) issued 0151 UT on 11 May 2012

Fri May 11 11:51:22 EST 2012

SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 11 MAY 2012, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (04 MAY - 10 MAY)
Date     04    05    06    07    08    09    10
10cm    114   116   117   122   123   127   131
AFr       4     4     5     4     8    19  ( 10)
Aaus      3     2     3     2     5    14  (  9)
T        64    69    68    66    59    80    71

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

04 May 
Solar:        Low
Geomagnetic:  Mostly quiet
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values with depressions to 30%
      13-23 UT.
   Niue Island Region:
      Near predicted monthly values with depressions to 20%
      00-04 and 20-23 UT, depressions to 30% 10-14 UT.
   Northern Australian Region:
      Near predicted monthly values with depressions to 30%
      at Darwin 11-19 UT and 09-16 UT at Townsville.
   Southern Australian and New Zealand Region:
      Near predicted monthly values with depressions to 25%
      08-21 UT.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to 30% depressed.

05 May 
Solar:        Moderate, with an M1.4 at 1323UT, and an M1.3 at 
              2302UT
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values with enhancements to 35%
      04-12 UT, depressions to 30% 14-17, 23 UT.
   Niue Island Region:
      Near predicted monthly values with depressions to 20%
      00-05, 21-23 UT, depressions to 35% 08-15 UT.
   Northern Australian Region:
      Near predicted monthly values with depressions to 20%
      10-16 UT at Townsville.
   Southern Australian and New Zealand Region:
      Near predicted monthly values with occasional
      depressions to 20%. Depressions to 35% 10-18 UT at
      Hobart, Learmonth and Perth.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values with depressions to 40%
      12-20 UT.

06 May 
Solar:        Moderate, with an M1.3 at 2302UT, and an M1.3 at 
              1748UT
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values. Depressions to 35%
      13-15 UT. No data 16-19 UT.
   Niue Island Region:
      Near predicted monthly values to 15% depressed; 20-35%
      depressed 08-14 UT.
   Northern Australian Region:
      Near predicted monthly values with 25-40% depressions,
      11-19 UT at Darwin, and depressed to 25% 10-20 UT at
      Townsville.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values. Depressions 20-30%
      11-16 UT at Hobart, Learmonth and Perth.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values with some depressions to
      30% 18-21 UT.

07 May 
Solar:        Moderate, with an M1.9 at 1433UT
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      Enhanced by 30% during local day.
      Depressed by 20% during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 35% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
      Brisbane, Perth mostly depressed 20%. 
      Evening spread-F observed Hobart.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

08 May 
Solar:        Moderate, with an M1.4 at 1308UT
Geomagnetic:  Quiet to Unsettled
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 30% during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 25% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 30% during local night.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values.
      Norfolk Island depressed 20% at times. 
      Sydney, Canberra depressed 20% 03-10UT.
      Perth depressed 20% 05-07 and 10-17UT
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

09 May 
Solar:        Moderate, with an M4.7 at 1232UT, an M1.8 at 1409UT, 
              and an M4.1 at 2105UT
Geomagnetic:  Quiet to Unsettled
Frequencies:  
   Cocos Island Region:
      Mostly near predicted monthly values.
      Depressed 40% 15-16UT.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
      Depressed to 40% 12-14UT.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
      Darwin depressed 40% 12-14UT.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
      Perth no data after 04UT.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Poor ionospheric support over the UT day.

10 May 
Solar:        High, with an M5.7 at 0418UT, and an M1.7 at 2026UT
Geomagnetic:  Quiet to Unsettled
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 35% during local night.
   Niue Island Region:
      Depressed by 15% during local day.
      Depressed by 20% until local dawn.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Darwin depressed 40% 12-18UT.
      Townsville depressed 30-40% 12-15UT.
      Learmonth depressed 40% 11-15UT.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
      Spread-F observed local night Sydney, Canberra.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 15% over the UT day.
      Extended periods of poor ionospheric support. 

2. FORECAST (11 MAY - 17 MAY)
Solar: 
Moderate activity early in week. 
Days of High activity possible.

Geomagnetic:  
Quiet to unsettled conditions.

Frequencies:  
MUFs mostly near predicted monthly values. 
SWF's and proton events possible. 

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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