[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
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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
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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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