[Ips-dsgr] IPS Daily Report - 02 August 01
rwc
rwc at ips.gov.au
Fri Aug 3 09:18:09 EST 2001
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 02/2330Z AUGUST 2001 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 02 AUGUST AND FORECAST FOR 03 AUGUST - 05 AUGUST
STATUS INDICATORS SOL:GREEN MAG:** YELLOW ** ION: GREEN
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1A. SOLAR SUMMARY
Activity 02 Aug: Low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 02 Aug: 121/73
GOES satellite data for 01 Aug
Daily Proton Fluence >1 MeV: 1.1E+06
Daily Proton Fluence >10 MeV: 1.2E+04
Daily Electron Fluence >2 MeV: 5.90E+06 (normal)
X-ray background: B2.2
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
1B. SOLAR FORECAST
03 Aug 04 Aug 05 Aug
Activity Low Low Low
Fadeouts None expected None expected None expected
10.7cm/SSN 125/78 130/84 130/84
COMMENT: A solar region in the north-east quadrant of the solar
disk has shown rapid growth overnight. M class flare activity
is becoming increasingly likely. A discontinuity was observed
in the ACE data around 14UT on 2 Aug, it is unclear whether this
is related to recent filament eruptions or a possoble solar sector
boundary crossing. ACE EPAM 47-65KeV data (a precursor to geomagnetic
activity) remains elevated.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 02 Aug: Quiet
Estimated Indices 02 Aug : A K
Australian Region 5 2221 1222
Darwin 6 2222 2211
Townsville 3 -210 0122
Learmonth 10 2232 2333
Canberra 3 1121 1111
Hobart 3 1121 1111
Observed Regional daily pc3 Indices 02 AUG :
Darwin 30 (Quiet to unsettled)
Townsville 0 (Quiet)
Learmonth NA
Canberra 38 (Quiet to unsettled)
Hobart 32 (Quiet to unsettled)
Estimated AFr/Ap Indices 02 Aug : A
Fredericksburg 8
Planetary 10
Observed AFr/Ap Indices 01 Aug : A K
Fredericksburg 10
Planetary 12 3233 3322
2B. MAGNETIC FORECAST
Date Ap Conditions
03 Aug 16 active
04 Aug 13 Unsettled to Active
05 Aug 11 Unsettled
COMMENT: Active conditions expected on 03 Aug due to disappearing
solar filaments on 30-31 Jul.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
02 Aug Normal Normal Normal-fair
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
03 Aug Normal Normal-Fair Fair
04 Aug Normal Normal Normal-Fair
05 Aug Normal Normal Normal-Fair
COMMENT: Mild degradation expected 03 Aug.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
02 Aug 95
Observed Australian Regional MUFs
Equatorial PNG Region:
Enhanced by 15% during local day,
Enhanced by 30% during local night.
Northern Australian Region:
Near predicted monthly values during local day,
Depressed by 20% during local night.
Depressed by 20% after local dawn.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base):
Enhanced by 20% over the UT day.
Some absorption observed.
Predicted Monthly T index for August: 109
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
03 Aug 95 near predicted monthly values/depressed 10 to 15%
04 Aug 90 depressed 10 to 15%/near predicted monthly values
05 Aug 110 Near predicted monthly values
COMMENT: Mild degradation expected 03-04 Aug, southern region
Aus/NZ, during local night hours.
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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