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

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

Flares: none.

Observed 10.7 cm flux/Equivalent Sunspot Number for 25 Jul: 133/87

GOES satellite data for 24 Jul
       Daily Proton Fluence >1 MeV:   1.0E+05
       Daily Proton Fluence >10 MeV:  1.1E+04
       Daily Electron Fluence >2 MeV: 5.30E+06 (normal)
       X-ray background: B6.6
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.

1B. SOLAR FORECAST
             26 Jul             27 Jul             28 Jul
Activity     Low                Low                Low
Fadeouts     None expected      None expected      None expected
10.7cm/SSN   135/89             130/84             130/84
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 25 Jul: Quiet to Minor Storm 

Estimated Indices 25 Jul :  A   K           
   Australian Region      20   2335 3433
      Darwin              17   2334 3433
      Townsville          13   2334 2321
      Learmonth           23   2335 3533
      Canberra            22   2345 3433
      Hobart              20   2345 2433
    
Observed Regional daily pc3 Indices 25 JUL : 
      Darwin              26   (Quiet to unsettled)
      Townsville           0   (Quiet)
      Learmonth            7   (Quiet)
      Canberra            32   (Quiet to unsettled)
      Hobart              61   (Active)

Estimated AFr/Ap Indices 25 Jul : A 
           Fredericksburg        18
           Planetary             21                         

Observed AFr/Ap Indices 24 Jul :  A   K
           Fredericksburg        11
           Planetary             15   3332 4333     


2B. MAGNETIC FORECAST 
Date      Ap    Conditions
26 Jul    12    Unsettled 
27 Jul    10    Quiet to Unsettled 
28 Jul     8    Quiet to Unsettled 
COMMENT: Overnight geomagnetic activity possibly due to coronal 
hole. 
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3A. GLOBAL HF PROPAGATION SUMMARY
	            Latitude Band
Date        Low            Middle         High 
25 Jul      Normal         Normal-fair    Fair           
PCA Event : No event.

3B. GLOBAL HF PROPAGATION FORECAST
	            Latitude Band
Date        Low            Middle         High 
26 Jul      Normal         Normal-fair    Normal-fair   
27 Jul      Normal         Normal         Normal        
28 Jul      Normal         Normal         Normal        
COMMENT: Mildly degarded conditions observed local night hours 
mid to high latitudes. 
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date   T index
25 Jul   102

Observed Australian Regional MUFs
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Depressed by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Depressed by 25% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.
      Some spread F and absorption observed.


Predicted Monthly T index for July: 115

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date   T index  MUFs
26 Jul   115    Near predicted monthly values 
27 Jul   115    Near predicted monthly values 
28 Jul   115    Near predicted monthly values 
COMMENT: Mildly degraded conditions observed local night hours. 

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