[Ips-dsgr] IPS Daily Report - 29 August 01
rwc
rwc at ips.gov.au
Thu Aug 30 09:23:02 EST 2001
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 29/2330Z AUGUST 2001 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 29 AUGUST AND FORECAST FOR 30 AUGUST - 01 SEPTEMBER
STATUS INDICATORS SOL:** YELLOW ** MAG:** RED ** ION: GREEN
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1A. SOLAR SUMMARY
Activity 29 Aug: Moderate
Flares Max Fadeout Freq. Sectors
M1.6 0525UT possible lower E. Asia/Aust.
M1.2 1257UT possible lower European
Observed 10.7 cm flux/Equivalent Sunspot Number for 29 Aug: 197/149
GOES satellite data for 28 Aug
Daily Proton Fluence >1 MeV: 1.7E+07
Daily Proton Fluence >10 MeV: 3.3E+04
Daily Electron Fluence >2 MeV: 1.50E+06 (normal)
X-ray background: C2.5
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
1B. SOLAR FORECAST
30 Aug 31 Aug 01 Sep
Activity Moderate Moderate Moderate
Fadeouts Possible Possible Possible
10.7cm/SSN 200/152 200/152 205/156
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 29 Aug: Quiet to Unsettled
Estimated Indices 29 Aug : A K
Australian Region 5 1223 1102
Darwin 3 ---- -1--
Townsville 2 0112 0102
Learmonth 4 2222 0000
Canberra 5 1223 1013
Hobart 5 1223 1101
Observed Regional daily pc3 Indices 29 AUG :
Darwin NA
Townsville 0 (Quiet)
Learmonth 0 (Quiet)
Canberra 38 (Quiet to unsettled)
Hobart 38 (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 29 Aug : A
Fredericksburg 10
Planetary 10
Observed AFr/Ap Indices 28 Aug : A K
Fredericksburg 6
Planetary 15 4333 3432
2B. MAGNETIC FORECAST
Date Ap Conditions
30 Aug 10 Quiet to Unsettled
31 Aug 10 Quiet to Unsettled
01 Sep 23 Active
COMMENT: Geomagnetic activity is expected to be active on 1 Sep
due to recurrent coronal hole activity.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
29 Aug Normal Normal Normal-Fair
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
30 Aug Normal Normal Normal-Fair
31 Aug Normal Normal Normal-Fair
01 Sep Normal Normal-Fair Fair
COMMENT: HF conditions were not very degraded due to lack of
geomagnetic activity following impulse in geomagnetic field.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
29 Aug 120
Observed Australian Regional MUFs
Equatorial PNG Region:
Enhanced by 25% during local day,
Enhanced by 20% 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 15% over the UT day.
Predicted Monthly T index for August: 109
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
30 Aug 120 near predicted monthly values
31 Aug 120 near predicted monthly values
01 Sep 111 10 to 20% below 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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