[Ips-dsgr] IPS Daily Report - 30 August 01
rwc
rwc at ips.gov.au
Fri Aug 31 09:20:18 EST 2001
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 30/2330Z AUGUST 2001 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 30 AUGUST AND FORECAST FOR 31 AUGUST - 02 SEPTEMBER
STATUS INDICATORS SOL:** YELLOW ** MAG:** RED ** ION: GREEN
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1A. SOLAR SUMMARY
Activity 30 Aug: Moderate
Flares Max Fadeout Freq. Sectors
M1/2N 1757UT possible lower South American/
Atlantic
M3/SF 2038UT possible lower East Pacific/
North American
Observed 10.7 cm flux/Equivalent Sunspot Number for 30 Aug: 199/151
GOES satellite data for 29 Aug
Daily Proton Fluence >1 MeV: 4.1E+06
Daily Proton Fluence >10 MeV: 2.0E+04
Daily Electron Fluence >2 MeV: 5.00E+06 (normal)
X-ray background: C1.4
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
1B. SOLAR FORECAST
31 Aug 01 Sep 02 Sep
Activity Moderate Moderate Moderate
Fadeouts Possible Possible Possible
10.7cm/SSN 205/156 210/161 210/161
A possible weak shock was observed in the solar wind at 1329UT
on 30 Aug.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 30 Aug: Quiet to Active
Estimated Indices 30 Aug : A K
Australian Region 11 2112 3432
Darwin - ---- ----
Townsville 3 1011 1222
Learmonth 11 2122 3432
Canberra 15 3--2 3433
Hobart 11 1212 3432
Observed Regional daily pc3 Indices 30 AUG :
Darwin NA
Townsville 0 (Quiet)
Learmonth 0 (Quiet)
Canberra 109 (Major storm)
Hobart 0 (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 30 Aug : A
Fredericksburg 10
Planetary 13
Observed AFr/Ap Indices 29 Aug : A K
Fredericksburg 5
Planetary 9 2233 2322
2B. MAGNETIC FORECAST
Date Ap Conditions
31 Aug 10 Quiet to Unsettled
01 Sep 20 active
02 Sep 20 active
COMMENT: Geomagnetic activity is expected to be active 1-2 Sep
due to recurrent coronal hole activity.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
30 Aug Normal Normal Normal
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
31 Aug Normal Normal Normal-Fair
01 Sep Normal Normal-Fair Fair
02 Sep Normal Normal-Fair Fair
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
30 Aug 113
Observed Australian Regional MUFs
Equatorial PNG Region:
Enhanced by 20% during local day,
Enhanced by 25% during local night.
Northern Australian Region:
Near predicted monthly values.
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 August: 109
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
31 Aug 120 near predicted monthly values
01 Sep 111 10 to 20% below predicted monthly values
02 Sep 110 Near predicted monthly values
COMMENT: Depressed conditions are expected on 1 Sep due to geomagnetic
activity.
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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