[Ips-dsgr] IPS Daily Report - 20 July 01

rwc rwc at ips.gov.au
Sat Jul 21 09:51:41 EST 2001


SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 20/2330Z JULY 2001 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 20 JULY AND FORECAST FOR 21 JULY - 23 JULY
STATUS INDICATORS SOL:*YELLOW*   MAG:GREEN     ION: GREEN
-----------------------------------------------------------
1A. SOLAR SUMMARY
Activity 20 Jul:  Low

Flares: none.

Observed 10.7 cm flux/Equivalent Sunspot Number for 20 Jul: 143/97

GOES satellite data for 19 Jul
       Daily Proton Fluence >1 MeV:   1.4E+05
       Daily Proton Fluence >10 MeV:  1.2E+04
       Daily Electron Fluence >2 MeV: 6.20E+07 (normal)
       X-ray background: B3.8
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.

1B. SOLAR FORECAST
             21 Jul             22 Jul             23 Jul
Activity     Low to moderate    Low to moderate    Low to moderate
Fadeouts     Possible           Possible           Possible
10.7cm/SSN   145/99             145/99             145/99




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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 20 Jul: Quiet 

Estimated Indices 20 Jul :  A   K           
   Australian Region       4   2112 1112
      Darwin               5   2222 1113
      Townsville           2   1001 1111
      Learmonth           NA 
      Canberra             4   3102 1102
      Hobart               3   1112 1100
    
Observed Regional daily pc3 Indices 20 JUL : 
      Darwin              12   (Quiet)
      Townsville           0   (Quiet)
      Learmonth            0   (Quiet)
      Canberra            30   (Quiet to unsettled)
      Hobart               8   (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 20 Jul : A 
           Fredericksburg        10
           Planetary              9                         

Observed AFr/Ap Indices 19 Jul :  A   K
           Fredericksburg         6
           Planetary              9   1222 2432     


2B. MAGNETIC FORECAST 
Date      Ap    Conditions
21 Jul    10    Quiet to Unsettled 
22 Jul    10    Quiet to unsettled 
23 Jul    10    Quiet to unsettled 

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

3B. GLOBAL HF PROPAGATION FORECAST
	            Latitude Band
Date        Low            Middle         High 
21 Jul      Normal         Normal         Normal-Fair
22 Jul      Normal         Normal         Normal-Fair
23 Jul      Normal         Normal         Normal-Fair

-----------------------------------------------------------
4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date   T index
20 Jul   108

Observed Australian Regional MUFs
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Enhanced by 40% during local night.
   Northern Australian Region:
      Depressed by 15% during local day,
      Near predicted monthly values during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base):
      Enhanced greater than 30%.


Predicted Monthly T index for July: 115

4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date   T index  MUFs
21 Jul   115    Near predicted monthly values 
22 Jul   115    Near predicted monthly values 
23 Jul   115    Near predicted monthly values 


IPS Radio and Space Services      | email: asfc at ips.gov.au
PO Box 1386                       | WWW: http://www.ips.gov.au/asfc
Haymarket NSW 1240  AUSTRALIA     | FTP: ftp://ftp.ips.gov.au/users/asfc/ 
tel: +61 2 9213 8010              | fax: +61 2 9213 8060 




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