[Ips-dsgr] IPS Daily Report - 25 April 01

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SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 25/2330Z APRIL 2001 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 25 APRIL AND FORECAST FOR 26 APRIL - 28 APRIL
STATUS INDICATORS SOL:*YELLOW*   MAG:GREEN     ION: GREEN
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1A. SOLAR SUMMARY
Activity 25 Apr:  Moderate

Flares    Max     Fadeout    Freq.  Sectors
 M2/2N    1348UT  possible   lower  European

Observed 10.7 cm flux/Equivalent Sunspot Number for 25 Apr: 194/146

GOES satellite data for 24 Apr
       Daily Proton Fluence >1 MeV:   2.0E+05
       Daily Proton Fluence >10 MeV:  2.0E+04
       Daily Electron Fluence >2 MeV: 1.00E+06 (normal)
       X-ray background: B6.3
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.

1B. SOLAR FORECAST
             26 Apr             27 Apr             28 Apr
Activity     Moderate to high   Moderate to high   Moderate to high
Fadeouts     Probable           Probable           Probable
10.7cm/SSN   200/152            210/161            215/165



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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 25 Apr: Quiet 

Estimated Indices 25 Apr :  A   K           
   Australian Region        5   2012 2222
      Darwin                4   1111 2223
      Townsville            6   3012 2---
      Learmonth             7   2112 3222
      Canberra              3   1012 2112
      Hobart                4   1012 2212
    
Observed Regional daily pc3 Indices 25 APR : 
      Darwin                0   (Quiet)
      Townsville            0   (Quiet)
      Learmonth             0   (Quiet)
      Canberra              0   (Quiet)
      Hobart                4   (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 25 Apr : A 
           Fredericksburg        10
           Planetary              8                         

Observed AFr/Ap Indices 24 Apr :  A   K
           Fredericksburg        11
           Planetary              8   1232 2322     


2B. MAGNETIC FORECAST 
Date      Ap    Conditions
26 Apr    10    Quiet to Unsettled 
27 Apr    10    Quiet to Unsettled 
28 Apr    10    Quiet to Unsettled 

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

3B. GLOBAL HF PROPAGATION FORECAST
	            Latitude Band
Date        Low            Middle         High 
26 Apr      Normal         Normal         Normal-Fair
27 Apr      Normal         Normal         Normal-Fair
28 Apr      Normal         Normal         Normal-Fair

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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date   T index
25 Apr   126

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


Predicted Monthly T index for April: 120

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date   T index  MUFs
26 Apr   130    near predicted monthly values 
27 Apr   130    near predicted monthly values 
28 Apr   130    Near predicted monthly values 


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