[Ips-dsgr] IPS Daily Report - 24 April 05

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SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 24/2330Z APRIL 2005 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 24 APRIL AND FORECAST FOR 25 APRIL - 27 APRIL
STATUS INDICATORS SOL:GREEN   MAG:GREEN     ION: GREEN
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1A. SOLAR SUMMARY
Activity 24 Apr:  Very low

Flares: none.

Observed 10.7 cm flux/Equivalent Sunspot Number for 24 Apr:  82/23


1B. SOLAR FORECAST
             25 Apr             26 Apr             27 Apr
Activity     Very low           Very low           Very low
Fadeouts     None expected      None expected      None expected
10.7cm/SSN    85/27              90/34              90/34




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2A. MAGNETIC SUMMARY

Geomagnetic field for Australian Region 24 Apr: Quiet to Unsettled 

Estimated Indices 24 Apr :  A   K           
   Australian Region       7   3222 2211
      Learmonth            9   3223 2222
      Culgoora             7   3212 2211
      Canberra             7   3222 2211
      Hobart               7   3222 2211
      Casey(Ant)          11   3432 2122
    
Observed Regional daily pc3 Indices 24 Apr : 
      Townsville          NA
      Learmonth           NA
      Culgoora            NA
      Canberra            NA
      Hobart              53   (Unsettled)
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 Apr : A 
           Fredericksburg        10
           Planetary             15                         

Observed AFr/Ap Indices 23 Apr :  A   K
           Fredericksburg         5
           Planetary              6   1122 2222     


2B. MAGNETIC FORECAST 
Date      Ap    Conditions
25 Apr     8    Quiet to Unsettled 
26 Apr     7    Quiet 
27 Apr     3    Quiet 
COMMENT: Quiet conditions are expected. 

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

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

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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY


Date   T index
24 Apr    46

Observed Australian Regional MUFs
   Equatorial PNG Region:
     No data available during local day,
     No data available during local night.
  Northern Australian Region:
     Enhanced by 15% during local day,
     Near predicted monthly values during local night.
  Southern Australian and New Zealand Region:
     Enhanced by 15% during local day,
     Enhanced by 15% during local night.
  Antarctic Region (Casey/Scott Base):
     Near predicted monthly values over the UT day.

Predicted Monthly T index for April:  29

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date   T index  MUFs
25 Apr    20    Near predicted monthly values 
26 Apr    35    Near to 15% above predicted monthly values 
27 Apr    35    Near to 15% above predicted monthly values 

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5. SPACE ENVIRONMENT SUMMARY

GOES satellite data for 23 Apr
       Daily Proton Fluence >1 MeV:   3.1E+05
       Daily Proton Fluence >10 MeV:  1.4E+04
       Daily Electron Fluence >2 MeV: 7.60E+06 (normal fluence)  
Electron Fluence Daily Deep Dielectric Discharge Probability: 1%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
       X-ray background: A5.5

ACE Satellite Solar Wind Day Averaged Data for 23 Apr
Speed: 544 km/sec  Density:    4.5 p/cc  Temp:   159000 K  Bz:   3 nT

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