[Ips-dsgr] IPS Daily Report - 23 March 09

[rwc]

SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 23/2330Z MARCH 2009 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 23 MARCH AND FORECAST FOR 24 MARCH - 26 MARCH
STATUS INDICATORS SOL:GREEN   MAG:GREEN     ION: GREEN
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1A. SOLAR SUMMARY
Activity 23 Mar: Very low

Flares: None

Observed 10.7 cm flux/Equivalent Sunspot Number for 23 Mar:  68/2

1B. SOLAR FORECAST
             24 Mar             25 Mar             26 Mar
Activity     Very low           Very low           Very low
Fadeouts     None expected      None expected      None expected
10.7cm/SSN    70/5               70/5               70/5

COMMENT: The solar wind speed has declined from about 420 km/s 
over the past day and is currently around 360 km/s. The solar 
disc is presently spotless. 

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2A. MAGNETIC SUMMARY

Geomagnetic field for Australian Region 23 Mar: Quiet 

Estimated Indices 23 Mar :  A   K           
   Australian Region       3   22100111
      Darwin               2   11100112
      Townsville           6   22211222
      Learmonth            2   21000021
      Camden               -   --------
      Canberra             1   11000001
      Hobart               1   11000001
      Casey(Ant)           5   23211111
    
Observed Regional daily pc3 Indices 23 Mar : 
      Darwin               0   (Quiet)
      Townsville           0   (Quiet)
      Learmonth            0   (Quiet)
      Alice_Springs        0   (Quiet)
      Camden              NA
      Gnangara             4   (Quiet)
      Canberra             0   (Quiet)
      Hobart               0   (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 and have been shown to be
well correlated with rejection of high resolution aeromagnetic
survey flight-line data. 

NOTE: Indices may have been generated from data obtained in 
cooperation with the following organisations: Geoscience Australia, 
University of Newcastle Space Physics Group, Australian Government 
Antarctic Division and Space Environment Research Center, Japan.

Estimated AFr/Ap Indices 23 Mar : A 
           Fredericksburg         3
           Planetary              5                         

Observed AFr/Ap Indices 22 Mar :  A   K
           Fredericksburg         4
           Planetary              4   2300 0002     

2B. MAGNETIC FORECAST 
Date      Ap    Conditions
24 Mar     5    Quiet 
25 Mar     5    Quiet 
26 Mar     8    Quiet to unsettled. Possible isolated active 
                period at higher latitudes. 

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3A. GLOBAL HF PROPAGATION SUMMARY
	            Latitude Band
Date        Low            Middle         High 
23 Mar      Normal         Normal         Normal         
PCA Event : No event.

3B. GLOBAL HF PROPAGATION FORECAST
	            Latitude Band
Date        Low            Middle         High 
24 Mar      Fair-normal    Fair-normal    Fair-normal   
25 Mar      Fair-normal    Fair-normal    Fair-normal   
26 Mar      Fair-normal    Fair-normal    Fair-normal   

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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY

Date   T index
23 Mar     2

Observed Australian Regional MUFs
   Equatorial PNG/Niue Region:
      Mostly near predicted monthly values.
   Northern Australian Region:
      Mostly near predicted monthly values.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to 25% depressed.

Predicted Monthly T index for March:   3

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date   T index  MUFs
24 Mar    -5    Near predicted monthly values to 20% depressed
25 Mar    -5    Near predicted monthly values to 20% depressed
26 Mar    -5    Near predicted monthly values to 20% depressed

COMMENT: Occasional depressions to 30% possible. 

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5. SPACE ENVIRONMENT SUMMARY

GOES satellite data for 22 Mar
       Daily Proton Fluence >1 MeV:   2.2E+05
       Daily Proton Fluence >10 MeV:  2.0E+04
       Daily Electron Fluence >2 MeV: 1.70E+05   (normal fluence)   
Electron Fluence Daily Deep Dielectric Discharge Probability: 1%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
       X-ray background: A1.0

ACE Satellite Solar Wind Day Averaged Data for 22 Mar
Speed: 425 km/sec  Density:    0.7 p/cc  Temp:    70800 K  Bz:   2 nT

(Courtesy Space Weather Prediction Center, Boulder USA)
ACE data can be incorrect during strong proton events.
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