[Ips-dsgr] IPS Daily Report - 24 May 06

rwc rwc at ips.gov.au
Thu May 25 09:33:48 EST 2006


SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 24/2330Z MAY 2006 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 24 MAY AND FORECAST FOR 25 MAY - 27 MAY
STATUS INDICATORS SOL:GREEN   MAG:GREEN     ION: GREEN
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1A. SOLAR SUMMARY
Activity 24 May:  Very low

Flares: none.

Observed 10.7 cm flux/Equivalent Sunspot Number for 24 May:  84/26


1B. SOLAR FORECAST
             25 May             26 May             27 May
Activity     Low                Low                Low
Fadeouts     None expected      None expected      None expected
10.7cm/SSN    85/27              85/27              85/27





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2A. MAGNETIC SUMMARY

Geomagnetic field for Australian Region 24 May: Quiet 

Estimated Indices 24 May :  A   K           
   Australian Region       4   11222111
      Darwin               3   11221101
      Learmonth            3   01222100
      Culgoora             2   11111101
      Camden               6   22122222
      Canberra             2   01122100
      Hobart               2   11111100
      Casey(Ant)           9   23322222
    
Observed Regional daily pc3 Indices 24 May : 
      Canberra            20   (Quiet)
      Learmonth            0   (Quiet)
      Culgoora            51   (Unsettled)
      Hobart              10   (Quiet)
Pc3 pulsations are high frequency (10-45 second period) variations 
of the Earths magnetic field. Daily pc3 indices are the daily sum 
of 20 minute pc3 indices for that station. 


Estimated AFr/Ap Indices 24 May : A 
           Fredericksburg         5
           Planetary              6                         

Observed AFr/Ap Indices 23 May :  A   K
           Fredericksburg         4
           Planetary              7   3321 1121     


2B. MAGNETIC FORECAST 
Date      Ap    Conditions
25 May     8    Quiet to Unsettled 
26 May     7    Quiet 
27 May     7    Quiet 


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3A. GLOBAL HF PROPAGATION SUMMARY
	            Latitude Band
Date        Low            Middle         High 
24 May      Fair           Fair           Fair           
PCA Event : No event.

3B. GLOBAL HF PROPAGATION FORECAST
	            Latitude Band
Date        Low            Middle         High 
25 May      Fair-normal    Fair-normal    Fair-normal   
26 May      Fair-normal    Fair-normal    Fair-normal   
27 May      Fair-normal    Fair-normal    Fair-normal   
COMMENT: Spread F, mostly during night hours, can be expected 
to degrade communications. 
-----------------------------------------------------------
4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY


Date   T index
24 May    28

Observed Australian Regional MUFs
   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.

Predicted Monthly T index for May:  15

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date   T index  MUFs
25 May    25    Near predicted monthly values to 30% enhanced. 
26 May    25    Near predicted monthly values to 30% enhanced. 
27 May    25    Near predicted monthly values to 30% enhanced. 
COMMENT: Night communications likely to be degraded due to spread 
F. 
-----------------------------------------------------------
5. SPACE ENVIRONMENT SUMMARY

GOES satellite data for 23 May
       Daily Proton Fluence >1 MeV:   1.3E+05
       Daily Proton Fluence >10 MeV:  1.5E+04
       Daily Electron Fluence >2 MeV: 5.20E+06 (normal fluence)  
Electron Fluence Daily Deep Dielectric Discharge Probability: 1%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
       X-ray background: A3.4

ACE Satellite Solar Wind Day Averaged Data for 23 May
Speed: 465 km/sec  Density:    1.7 p/cc  Temp:   113000 K  Bz:   0 nT

(Courtesy Space Environment Center, Boulder USA)
ACE data can be incorrect during strong proton events.
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IPS Radio and Space Services        email: asfc at ips.gov.au
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Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
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