[Ips-wsgr] IPS Weekly Solar and Geophysical Report (26 January 07)

[rwc]

SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 26 JANUARY 2007, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (19 JANUARY - 25 JANUARY)
Date     19    20    21    22    23    24    25
10cm     76    79    79    79    79    80    80
AFr       9     6     7     2     3     1    (5)
Aaus     11    11     9     6     6     4    (5)
T        -8    -2     6     0    11     2     1

Solar:        Solar flare activity
Geomagnetic:  Geomagnetic activity observed for Australian Region.
Frequencies:  Australian Ionospheric F2 critical frequencies

19 Jan 
Solar:        very low
Geomagnetic:  Quiet to Unsettled 

Frequencies:  
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day,
      Depressed by 20% during local night.
   Northern Australian Region:
      Depressed by 25% during local day,
      Depressed by 20% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 15% during local day,
      Near predicted monthly values during local night.
      Depressed by 20% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

20 Jan 
Solar:        very low
Geomagnetic:  Quiet to Unsettled 

Frequencies:  
   Equatorial PNG/Niue 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 20% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 15% during local day,
      Near predicted monthly values during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

21 Jan 
Solar:        low
Geomagnetic:  Quiet to Unsettled 

Frequencies:  
   Equatorial PNG/Niue Region:
     Mostly near predicted monthly values,
     Depressed by 25% after local dawn.
  Northern Australian Region:
     Mostly near predicted monthly values,
  Southern Australian and New Zealand Region:
     Depressed by 15% during local day,
     Near predicted monthly values during local night.
  Antarctic Region (Casey/Scott Base/Davis/Mawson):
     Near predicted monthly values over the UT day.

22 Jan 
Solar:        very low
Geomagnetic:  Quiet 

Frequencies:  
   Equatorial PNG/Niue Region:
     Near predicted monthly values during local day,
     Depressed by 30% during local night.
     Depressed by 30% after local dawn.
  Northern Australian Region:
     Near predicted monthly values.
  Southern Australian and New Zealand Region:
     Depressed by 15% during local day,
     Near predicted monthly values during local night.
  Antarctic Region (Casey/Scott Base/Davis/Mawson):
     Near predicted monthly values over the UT day.

23 Jan 
Solar:        very low
Geomagnetic:  Quiet 

Frequencies:  
   Equatorial PNG/Niue Region:
     Mostly near predicted monthly values,
     Depressed by 30% 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.

24 Jan 
Solar:        very low
Geomagnetic:  Quiet 

Frequencies:  
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day,
      Depressed by 25% during local night.
      Depressed by 25% after local dawn.
   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.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

25 Jan 
Solar:        low
Geomagnetic:  Quiet 

Frequencies:  
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day,
      Depressed by 20% during local night.
      Depressed by 30% after local dawn.
   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 during local day,
      Depressed by 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

 
2. FORECAST (26 JANUARY - 01 FEBRUARY)
Solar: 
Solar activity expected to range from Low to Moderate as an
active region that has produced two notable flares on the east
limb in the last 2 days set to rotate on disk within this forecast
period. SWF's possible.

Geomagnetic:  
Unsettled to Active conditions possible for this forecast period. On
29 Jan to 31 Jan due to an earth directed CME and from then onwards
possible effects of a equatorial position coronal hole which will be in
geoeffective position.

Frequencies:  
Briefly depressed after local dawn 29 to 31 Jan
MUFs near predicted monthly values on other days.

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

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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