[Ips-wsgr] IPS Weekly Solar and Geophysical Report (30 December 05)

[rwc]

SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 30 DECEMBER 2005, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (23 DECEMBER - 29 DECEMBER)
Date     23    24    25    26    27    28    29
10cm     93    92    92    93    92    89    90
AFr       1     3     5     6    10    13 ( 10)
Aaus      2     6     8     6    16    13 ( 11)
T        15    32    46    73    26    26    43

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

23 Dec 
Solar:        very low
Geomagnetic:  Quiet 

Frequencies:  
near predicted monthly values

24 Dec 
Solar:        very low
Geomagnetic:  Quiet to Unsettled 

Frequencies:  
near predicted monthly values

25 Dec 
Solar:        low
Geomagnetic:  Quiet to Unsettled 
A weak (11nT) impulse was observed in the IPS magnetometer data at 0655UT on 25
Dec.
Frequencies:  
near predicted monthly values

26 Dec 
Solar:        very low
Geomagnetic:  Quiet to unsettled 

Frequencies:  
near predicted monthly values

27 Dec 
Solar:        very low
Geomagnetic:  Unsettled with isolated active-minor storm periods. 

Frequencies:  
   Equatorial PNG Region:
      Mostly near predicted monthly values,
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Mostly near predicted monthly values,
      Depressed by 20% after local dawn.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.

28 Dec 
Solar:        low
Geomagnetic:  Unsettled with isolated minor storm periods at 
              high latitudes. 

Frequencies:  
slightly above predicted monthly values

29 Dec 
Solar:        low
Geomagnetic:  Quiet to Unsettled 

Frequencies:  
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 15% 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.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.

 
2. FORECAST (30 DECEMBER - 05 JANUARY)
Solar: Low solar levels expected for the 30Dec to 05Jan
as current regions remain stable and magnetically simple.
No returning active regions expected. 

Geomagnetic: Quiet to Unsettled conditions are expected
with possible isolated Active periods between 30Dec and
01Jan due to coronal hole effects. Mostly Quiet conditions 
for 02Jan to 05Jan.

Frequencies:  Isolated disturbed periods due to elevated
geomagnetic activity possible - otherwise MUFs near 
predicted monthly values.

PLEASE NOTE: 
At this time of the solar cycle, space weather conditions
are frequently determined by short timescale events, not
able to be forecasted a week in advance.

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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