[Ips-dsgr] IPS Daily Report - 23 July 01

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SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 23/2330Z JULY 2001 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 23 JULY AND FORECAST FOR 24 JULY - 26 JULY
STATUS INDICATORS SOL:GREEN   MAG:GREEN     ION: GREEN
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1A. SOLAR SUMMARY
Activity 23 Jul:  Low

Flares: none.

Observed 10.7 cm flux/Equivalent Sunspot Number for 23 Jul: 143/97

GOES satellite data for 22 Jul
       Daily Proton Fluence >1 MeV:   8.2E+04
       Daily Proton Fluence >10 MeV:  1.1E+04
       Daily Electron Fluence >2 MeV: 6.60E+06 (normal)
       X-ray background: B3.6
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.

1B. SOLAR FORECAST
             24 Jul             25 Jul             26 Jul
Activity     Low                Low                Low
Fadeouts     None expected      None expected      None expected
10.7cm/SSN   140/94             140/94             135/89




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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 23 Jul: Quiet 

Estimated Indices 23 Jul :  A   K           
   Australian Region       5   2211 2212
      Darwin               5   2211 1222
      Townsville           3   2100 2112
      Learmonth           NA
      Canberra             5   2211 2212
      Hobart               5   2211 2211
    
Observed Regional daily pc3 Indices 23 JUL : 
      Darwin               0   (Quiet)
      Townsville           0   (Quiet)
      Learmonth            0   (Quiet)
      Canberra             2   (Quiet)
      Hobart               6   (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 23 Jul : A 
           Fredericksburg        12
           Planetary             12                         

Observed AFr/Ap Indices 22 Jul :  A   K
           Fredericksburg         6
           Planetary             11   2323 3333     


2B. MAGNETIC FORECAST 
Date      Ap    Conditions
24 Jul     8    Quiet to Unsettled 
25 Jul     8    Quiet to unsettled 
26 Jul     8    Quiet to unsettled 

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

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

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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date   T index
23 Jul   102

Observed Australian Regional MUFs
   Equatorial PNG Region:
      Minimal data.
   Northern Australian Region:
      Near predicted monthly values to 
      depressed by 15%.
   Southern Australian and New Zealand Region:
      Near predicted monthly values during local day,
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Scott Base):
      Enhanced by 30% over the UT day.


Predicted Monthly T index for July: 115

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date   T index  MUFs
24 Jul   110    Depressed 15-20% at times for northern Australian 
                regions, otherwise mostly near predicted monthly 
                values. 
25 Jul   115    Near predicted monthly values 
26 Jul   115    Near predicted monthly values 
COMMENT: Conditions have been mildly degraded for northern Australian 
regions over the past few days and slightly degraded conditions 
are possible at times for this region for 24 July. 

IPS Radio and Space Services      | email: asfc at ips.gov.au
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