[Ips-dsgr] IPS Daily Report - 09 October 02
rwc
rwc at ips.gov.au
Thu Oct 10 09:39:38 EST 2002
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 09/2330Z OCTOBER 2002 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 09 OCTOBER AND FORECAST FOR 10 OCTOBER - 12 OCTOBER
STATUS INDICATORS SOL:** YELLOW ** MAG:** YELLOW ** ION: GREEN
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1A. SOLAR SUMMARY
Activity 09 Oct: Low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 09 Oct: 167/121
1B. SOLAR FORECAST
10 Oct 11 Oct 12 Oct
Activity Low to moderate Low to moderate Low to moderate
Fadeouts Possible Possible Possible
10.7cm/SSN 170/124 175/129 180/133
COMMENT: Observed solar activity has been low. A CME was observed
in LASCO imagery, associated with a C-class flare from region
140 at around 0630UT. The mass ejection appeared to be mainly
north-directed and is not expected to be geoeffective.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 09 Oct: Quiet to Unsettled
Estimated Indices 09 Oct : A K
Australian Region 11 1233 2332
Townsville 13 1234 -332
Learmonth 9 2232 ----
Canberra 15 0234 3432
Hobart 17 1244 -432
Casey(Ant) 12 3433 1222
Observed Regional daily pc3 Indices 09 OCT :
Townsville 0 (Quiet)
Learmonth NA
Canberra 11 (Quiet)
Hobart 20 (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 09 Oct : A
Fredericksburg 16
Planetary 20
Observed AFr/Ap Indices 08 Oct : A K
Fredericksburg 19
Planetary 34 4645 4433
2B. MAGNETIC FORECAST
Date Ap Conditions
10 Oct 16 active
11 Oct 12 Unsettled
12 Oct 10 Quiet to Unsettled
COMMENT: The north-south component of the interplanetary magnetic
field has remained moderately southward since around 04UT. Solar
wind speed has continued to decline over the UT day. Unsettled
to active periods may be experienced today due to sustained southward
IMF.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
09 Oct Normal Normal Normal-fair
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
10 Oct Normal Normal-Fair Fair
11 Oct Normal Normal Normal-Fair
12 Oct Normal Normal Normal-Fair
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
09 Oct 132
Observed Australian Regional MUFs
Equatorial PNG Region:
Enhanced by 15-30%.
Northern Australian Region:
Enhanced by 15% during local day,
Enhanced by 40% during local night.
Enhanced by 20% after local dawn.
Southern Australian and New Zealand Region:
Enhanced by 15% during local day,
Enhanced by 30% during local night.
Depressed by 15% after local dawn.
Antarctic Region (Casey/Scott Base):
Depressed 5-15% at times, otherwise near predicted
monthly values.
Predicted Monthly T index for October: 94
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
10 Oct 130 10 to 30% above predicted monthly values
11 Oct 130 10 to 30% above predicted monthly values
12 Oct 140 15 to 30% above predicted monthly values
COMMENT: Mild depressions may be observed at times mid to high
latitudes for Oct 10.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 08 Oct
Daily Proton Fluence >1 MeV: 4.4E+05
Daily Proton Fluence >10 MeV: 1.2E+04
Daily Electron Fluence >2 MeV: 1.10E+07 (normal)
X-ray background: B6.0
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
ACE Satellite Solar Wind Day Averaged Data for 08 Oct
Speed: 486 km/sec Density: 4.5 p/cc Temp: 110000 K Bz: -4 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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