[Ips-wsgr] IPS Weekly Solar and Geophysical Report (25 January 13) issued 0142 UT on 25 Jan 2013

Fri Jan 25 12:42:21 EST 2013

SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 25 JANUARY 2013, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (18 JANUARY - 24 JANUARY)
Date     18    19    20    21    22    23    24
10cm    115   107   107   108   110   105   103
AFr       7     9     8     4     1     1 (  2)
Aaus     16     9     9     4     1     3 (  2)
T        99   111    99    74    61    88    81

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

18 Jan 
Solar:        low
Geomagnetic:  Quiet to unsettled. Active to minor storm period 
              12-15 UT.
In the IPS magnetometer data for 18 Jan, a weak (10nT) impulse 
was observed at 0831UT.
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values. Enhanced to 20%
      02-09 UT. Depressed to 15-25% 20-23 UT. 
   Niue Island Region:
      Near predicted monthly values. Enhanced 20-30%
      20-23 UT.
   Northern Australian Region:
      Near predicted monthly values. Depressions 20-25%
      18-20 UT at Darwin. Spread F observed at Townsville
      11-19 UT.
   Southern Australian and New Zealand Region:
      Enhanced to 30% 00-07 UT. Near predicted monthly
      values to 15% depressed 08-18 UT. Enhanced to 30% after
      local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Weak ionosphere with near predicted monthly values to 20% depressed.

19 Jan 
Solar:        low
Geomagnetic:  Quiet to unsettled
In the IPS magnetometer data for 19 Jan, a weak (11nT) impulse 
was observed at 1733UT.
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values. Depressions to 15%
      09-12 and 23 UT.
   Niue Island Region:
      Enhanced 25-40% 00-13 UT. Near predicted monthly
      values at other times.
   Northern Australian Region:
      Near predicted monthly values to 20% enhanced.
      Enhanced 15-35% 12-20 UT at Townsville.
   Southern Australian and New Zealand Region:
      Near predicted monthly values with occasional
      enhancements to 25%.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values.

20 Jan 
Solar:        low
Geomagnetic:  Quiet to active
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values. Enhanced 20-30% 16-18 UT.
   Niue Island Region:
      Near predicted monthly values. Depressed 15-25% 02-04 and
      16-17 UT. Enhanced by 15-30% 08-13 UT.
   Northern Australian Region:
      Near predicted monthly values with enhancements 25-50%
      05-16 UT at Darwin. Mostly near predicted monthly
      values at Townsville.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values. Enhanced 15-25% at
      some stations during local day.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Occasional weak ionosphere. Near predicted monthly values
      to 20% depressed.

21 Jan 
Solar:        very low
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      Depressed by 25% during local day.
      Near predicted monthly values during local night.
      Depressed by 20% after local dawn.
   Niue Island Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 25% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

22 Jan 
Solar:        very low
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island 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.
      Depressed by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

23 Jan 
Solar:        very low
Geomagnetic:  Mostly Quiet
Frequencies:  
   Cocos Island Region:
      Mostly near predicted monthly values.
   Niue Island Region:
      Depressed by 25% 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.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

24 Jan 
Solar:        very low
Geomagnetic:  Quiet
Frequencies:  
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

2. FORECAST (25 JANUARY - 31 JANUARY)
Solar: 
Very Low to Low

Geomagnetic:  
Quiet to unsettled conditions.

Frequencies:  
MUFs mostly near predicted monthly values. Minor MUF depressions 
possible from 25 to 27 January.

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
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 

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