[Ips-wsgr] IPS Weekly Solar and Geophysical Report (26 May 06)

[rwc]

SUBJ: IPS WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 26 MAY 2006, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (19 MAY - 25 MAY)
Date     19    20    21    22    23    24    25
10cm     75    76    78    83    84    84    84
AFr       7     5     4     6     4     3 (  7)
Aaus      7     6     4     6     4     4 (  2)
T        33    15    16    22    24    28    23

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

19 May 
Solar:        Very low
Geomagnetic:  Quiet to unsettled 
Frequencies:  
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day.
      Enhanced by 20% 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.

20 May 
Solar:        Very low
Geomagnetic:  Quiet to unsettled 
Frequencies:  
   Equatorial PNG/Niue Region:
      Near predicted monthly values during local day.
      Depressed by 40% 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 20% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 40% over the UT day.

21 May 
Solar:        Very low
Geomagnetic:  Quiet 
Frequencies:  
   Equatorial PNG/Niue Region:
      Depressed by 20% during local day.
      Depressed by 15% 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):
      Enhanced by 50% over the UT day.

22 May 
Solar:        Very low
Geomagnetic:  Quiet to unsettled 
Frequencies:  
   Equatorial PNG/Niue Region:
      Depressed by 15% 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 20% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 45% over the UT day.

23 May 
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 15% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 45% over the UT day.

24 May 
Solar:        Very low
Geomagnetic:  Quiet 
Frequencies:  
   Near predicted monthly values to 30% enhanced at times at
   all stations. Sporadic E observed at equatorial and
   northern Australian stations mostly during afternoon.
   Spread F observed at all stations mostly between 10 and
   20 UT.

25 May 
Solar:        Very low
Geomagnetic:  Quiet 
Frequencies:  
   Near predicted monthly values to 30% enhanced at times at
   all stations. Sporadic E observed at most stations during
   afternoon and early evening. Spread F observed at all
   stations mostly between about 09 and 20 UT.

 
2. FORECAST (26 MAY - 01 JUNE)
Solar: 
Low

Geomagnetic:  
Quiet to unsettled conditions.

Frequencies:  
MUFs near predicted monthly values to 30% enhanced. Communications
may be degraded during night hours due to spread F.

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
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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