[Ips-dsgr] IPS Daily Report - 12 October 02
rwc
rwc at ips.gov.au
Sun Oct 13 09:37:26 EST 2002
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 12/2330Z OCTOBER 2002 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 12 OCTOBER AND FORECAST FOR 13 OCTOBER - 15 OCTOBER
STATUS INDICATORS SOL:* YELLOW * MAG:GREEN ION: GREEN
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1A. SOLAR SUMMARY
Activity 12 Oct: Low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 12 Oct: 180/133
1B. SOLAR FORECAST
13 Oct 14 Oct 15 Oct
Activity Low Low Low to moderate
Fadeouts None expected None expected Possible
10.7cm/SSN 185/138 180/133 175/129
COMMENT: Observed solar activity has been low. Regions 139 and
149 are the most likely sources of significant flare activity.
Region 139 is approaching the west limb and will rotate off the
visible disk soon.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 12 Oct: Quiet
Estimated Indices 12 Oct : A K
Australian Region 4 1112 2202
Darwin 4 1112 2212
Townsville 4 1112 2201
Learmonth 2 1002 1202
Canberra 4 1112 1212
Hobart 4 1113 1201
Casey(Ant) 9 2332 22--
Observed Regional daily pc3 Indices 12 OCT :
Townsville 0 (Quiet)
Learmonth NA
Canberra 2 (Quiet)
Hobart 2 (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 12 Oct : A
Fredericksburg 8
Planetary 8
Observed AFr/Ap Indices 11 Oct : A K
Fredericksburg 5
Planetary 8 2223 3222
2B. MAGNETIC FORECAST
Date Ap Conditions
13 Oct 10 Quiet to Unsettled
14 Oct 10 Quiet to Unsettled
15 Oct 8 Quiet to Unsettled
COMMENT: The north-south component of the interplanetary magnetic
field has remained moderately southward. Unsettled to active
periods may be experienced today at high latitudes due to sustained
southward IMF.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
12 Oct Normal Normal Normal-fair
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
13 Oct Normal Normal Normal-Fair
14 Oct Normal Normal Normal-Fair
15 Oct Normal Normal Normal-Fair
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
12 Oct 149
Observed Australian Regional MUFs
10 to 30% above predicted monthly values
Predicted Monthly T index for October: 94
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
13 Oct 150 15 to 30% above predicted monthly values
14 Oct 150 15 to 30% above predicted monthly values
15 Oct 140 10 to 20% above predicted monthly values
COMMENT: Isolated depressions possible at high latitudes with
associated geomagnetic activity.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 11 Oct
Daily Proton Fluence >1 MeV: 8.5E+04
Daily Proton Fluence >10 MeV: 1.3E+04
Daily Electron Fluence >2 MeV: 2.30E+07 (normal)
X-ray background: B6.4
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
ACE Satellite Solar Wind Day Averaged Data for 11 Oct
Speed: 385 km/sec Density: 5.0 p/cc Temp: 38700 K Bz: -2 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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