[Ips-dsgr] IPS Daily Report - 24 July 01

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SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 24/2330Z JULY 2001 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 24 JULY AND FORECAST FOR 25 JULY - 27 JULY
STATUS INDICATORS SOL:GREEN   MAG:GREEN     ION: GREEN
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1A. SOLAR SUMMARY
Activity 24 Jul:  Low

Flares: none.

Observed 10.7 cm flux/Equivalent Sunspot Number for 24 Jul: 133/87

GOES satellite data for 23 Jul
       Daily Proton Fluence >1 MeV:   1.1E+05
       Daily Proton Fluence >10 MeV:  1.2E+04
       Daily Electron Fluence >2 MeV: 7.20E+06 (normal)
       X-ray background: B3.4
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.

1B. SOLAR FORECAST
             25 Jul             26 Jul             27 Jul
Activity     Low                Low                Low
Fadeouts     None expected      None expected      None expected
10.7cm/SSN   135/89             135/89             130/84




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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 24 Jul: Quiet to Unsettled 

Estimated Indices 24 Jul :  A   K           
   Australian Region       7   2212 3212
      Darwin               9   2312 3323
      Townsville           3   1111 2112
      Learmonth           NA
      Canberra             6   1212 3212
      Hobart               7   1222 3212
    
Observed Regional daily pc3 Indices 24 JUL : 
      Darwin              14   (Quiet)
      Townsville           0   (Quiet)
      Learmonth            0   (Quiet)
      Canberra            32   (Quiet to unsettled)
      Hobart              26   (Quiet to 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 Jul : A 
           Fredericksburg        15
           Planetary             15                         

Observed AFr/Ap Indices 23 Jul :  A   K
           Fredericksburg         8
           Planetary             12   3323 3332     


2B. MAGNETIC FORECAST 
Date      Ap    Conditions
25 Jul    10    Quiet to unsettled 
26 Jul    10    Quiet to unsettled 
27 Jul     8    Quiet to unsettled 

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

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

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

Observed Australian Regional MUFs
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced greater than 30% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day,
      Depressed by 15% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Enhanced by 25% over the UT day.


Predicted Monthly T index for July: 115

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date   T index  MUFs
25 Jul   110    Depressed 15-20% at times for northern Australian 
                regions, otherwise mostly near predicted monthly 
                values. 
26 Jul   115    Near predicted monthly values 
27 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 25 July. 

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