[Ips-dsgr] IPS Daily Report - 05 September 02
rwc
rwc at ips.gov.au
Fri Sep 6 09:13:09 EST 2002
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 05/2330Z SEPTEMBER 2002 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 05 SEPTEMBER AND FORECAST FOR 06 SEPTEMBER - 08 SEPTEMBER
STATUS INDICATORS SOL:** YELLOW ** MAG:** YELLOW ** ION: GREEN
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1A. SOLAR SUMMARY
Activity 05 Sep: Low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 05 Sep: 175/129
1B. SOLAR FORECAST
06 Sep 07 Sep 08 Sep
Activity Low to moderate Low to moderate Low to moderate
Fadeouts Possible Possible Possible
10.7cm/SSN 180/133 190/143 200/152
COMMENT: Isolated low level M class flaring possible. A solar
filament erupted from the western hemisphere of the solar disk
around 1706 UT, and was reported to be associated with a Type
II radio sweep. A weak shock may occur on late 06 Sep or early
07 Sep.
Previously X-flare(s) producing region 69 is due for return to
the north-east limb around 7 Sep.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 05 Sep: Quiet to Unsettled
Estimated Indices 05 Sep : A K
Australian Region 9 3332 2212
Townsville - ---- ----
Learmonth 8 2322 2223
Canberra 7 2322 2213
Hobart 7 2322 2212
Casey(Ant) 15 4442 2211
Davis(Ant) 15 3443 2221
Observed Regional daily pc3 Indices 05 SEP :
Townsville NA
Learmonth 0 (Quiet)
Canberra 50 (Unsettled)
Hobart 32 (Quiet to unsettled)
Estimated AFr/Ap Indices 05 Sep : A
Fredericksburg 10
Planetary 12
Observed AFr/Ap Indices 04 Sep : A K
Fredericksburg 23
Planetary 42 4656 5443
2B. MAGNETIC FORECAST
Date Ap Conditions
06 Sep 12 Unsettled
07 Sep 18 Active
08 Sep 15 Unsettled to Active
COMMENT: Mild recurrent pattern next few days. Also, a weak impulse
may occur in approx. two days time from filament eruption.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
05 Sep Normal Normal-fair Fair
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
06 Sep Normal Normal Normal-Fair
07 Sep Normal Normal-Fair Fair
08 Sep Normal Normal Normal-Fair
COMMENT:Mild degradation p[ossible 07 Sep high latitudes.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
05 Sep 137
Observed Australian Regional MUFs
Equatorial PNG Region:
Enhanced by 30% during local day,
Enhanced by 30% during local night.
Enhanced by 25% after local dawn.
Northern Australian Region:
Enhanced by 20% during local day,
Enhanced by 40% during local night.
Southern Australian and New Zealand Region:
Enhanced by 25% during local day,
Enhanced by 25% during local night.
Antarctic Region (Casey/Scott Base):
Enhanced by 25% over the UT day.
Some spread and absorption observed.
Predicted Monthly T index for September: 96
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
06 Sep 140 about 15% above predicted monthly values
07 Sep 140 about 15% above predicted monthly values
08 Sep 140 about 15% above predicted monthly values
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 04 Sep
Daily Proton Fluence >1 MeV: 1.5E+05
Daily Proton Fluence >10 MeV: 1.2E+04
Daily Electron Fluence >2 MeV: 6.80E+05 (normal)
X-ray background: B9.7
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
ACE Satellite Solar Wind Day Averaged Data for 04 Sep
Speed: 436 km/sec Density: 4.0 p/cc Temp: 166000 K Bz: -8 nT
(Courtesy Space Environment Center, Boulder USA)
ACE data can be incorrect during strong proton events.
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IPS Radio and Space Services | email: asfc at ips.gov.au
PO Box 1386 | WWW: http://www.ips.gov.au
Haymarket NSW 1240 AUSTRALIA | FTP: ftp://ftp.ips.gov.au
tel: +61 2 9213 8010 | fax: +61 2 9213 8060
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