[Ips-dsgr] IPS Daily Report - 04 August 01
rwc
rwc at ips.gov.au
Sun Aug 5 09:18:19 EST 2001
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 04/2330Z AUGUST 2001 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 04 AUGUST AND FORECAST FOR 05 AUGUST - 07 AUGUST
STATUS INDICATORS SOL:** YELLOW ** MAG:GREEN ION: GREEN
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1A. SOLAR SUMMARY
Activity 04 Aug: Low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 04 Aug: 148/102
GOES satellite data for 03 Aug
Daily Proton Fluence >1 MeV: 7.3E+04
Daily Proton Fluence >10 MeV: 1.1E+04
Daily Electron Fluence >2 MeV: 3.50E+05 (normal)
X-ray background: B3.0
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
1B. SOLAR FORECAST
05 Aug 06 Aug 07 Aug
Activity Low to moderate Low to moderate Low to moderate
Fadeouts Possible Possible Possible
10.7cm/SSN 155/109 160/114 160/114
COMMENT: An increasing trend in solar activity is possible over
the coming days. The Solar region in the north-east remains low
level M class capable. Another solar region in the south-west
has shown rapid growth overnight. Also, it appears that an active
solar region may be roatating onto the solar disk in the south-east
quadrant.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 04 Aug: Quiet to Unsettled
Estimated Indices 04 Aug : A K
Australian Region 5 1111 2322
Darwin 5 2111 1322
Townsville 3 0001 1312
Learmonth 8 1222 2332
Canberra 5 1011 2321
Hobart 5 0111 2321
Observed Regional daily pc3 Indices 04 AUG :
Darwin 4 (Quiet)
Townsville 0 (Quiet)
Learmonth 0 (Quiet)
Canberra 10 (Quiet)
Estimated AFr/Ap Indices 04 Aug : A
Fredericksburg 8
Planetary 9
Observed AFr/Ap Indices 03 Aug : A K
Fredericksburg 11
Planetary 14 2243 3333
2B. MAGNETIC FORECAST
Date Ap Conditions
05 Aug 8 Quiet to Unsettled
06 Aug 8 Quiet to Unsettled
07 Aug 8 Quiet to Unsettled
COMMENT: Recurrence suggests the field should be generally quiet,
with a weak recurrent pattern 08 Aug. Recurrent forecast may
be broken if developing solar regions produce CMEs.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
04 Aug Normal Normal Normal-Fair
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
05 Aug Normal Normal Normal-Fair
06 Aug Normal Normal Normal-Fair
07 Aug Normal Normal Normal-Fair
COMMENT: Mildly degraded conditions observed during local night
hours at high latitudes.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
04 Aug 93
Observed Australian Regional MUFs
Equatorial PNG Region:
Enhanced by 35% during local day,
Enhanced by 50% during local night.
Enhanced by 30% after local dawn.
Northern Australian Region:
Near predicted monthly values during local day,
Depressed by 15% during local night.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base):
Near predicted monthly values over the UT day.
Predicted Monthly T index for August: 109
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
05 Aug 105 Near predicted monthly values
06 Aug 105 Near predicted monthly values
07 Aug 105 Near predicted monthly values
COMMENT: Mild degradation observed local night hours at high
latitudes.
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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