[Ips-dsgr] IPS Daily Report - 08 October 03
rwc
rwc at ips.gov.au
Thu Oct 9 09:18:17 EST 2003
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 08/2330Z OCTOBER 2003 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 08 OCTOBER AND FORECAST FOR 09 OCTOBER - 11 OCTOBER
STATUS INDICATORS SOL:GREEN MAG:GREEN ION: GREEN
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1A. SOLAR SUMMARY
Activity 08 Oct: Low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 08 Oct: 113/64
1B. SOLAR FORECAST
09 Oct 10 Oct 11 Oct
Activity Low Low Low
Fadeouts None expected None expected None expected
10.7cm/SSN 110/60 105/54 105/54
COMMENT: Isolated low level M class flare possible from region
471. Solar wind speed steady at 550-600km/sec. Solar wind speed
expected to decline over next couple of days. Another small-medium
coronal hole is nearing solar central meridian, visible in SOHO
EIT imagery.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 08 Oct: Quiet
Estimated Indices 08 Oct : A K
Australian Region 4 2211 1122
Darwin 0 0100 0000
Townsville 4 1212 1123
Learmonth 4 2211 1123
Canberra 5 2221 1123
Hobart 5 2221 1122
Casey(Ant) 15 3--3 ----
Observed Regional daily pc3 Indices 08 OCT :
Townsville 0 (Quiet)
Learmonth 22 (Quiet to unsettled)
Canberra 100 (Minor storm)
Hobart 71 (Active)
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 08 Oct : A
Fredericksburg 8
Planetary 12
Observed AFr/Ap Indices 07 Oct : A K
Fredericksburg 11
Planetary 13 4223 3333
2B. MAGNETIC FORECAST
Date Ap Conditions
09 Oct 10 Quiet to Unsettled
10 Oct 8 Quiet to Unsettled
11 Oct 12 Unsettled
COMMENT: Quiet to unsettled conditions expected. Next 27 day
recurrent period of activity expected to begin 13-14 Oct. Some
mild elevation in activity may be experienced on 11 Oct due to
coronal hole now near centre of solar disk.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
08 Oct Normal Normal Normal-fair
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
09 Oct Normal Normal Normal-Fair
10 Oct Normal Normal Normal-Fair
11 Oct Normal Normal Normal-Fair
COMMENT: Good conditions expected until around 13 Oct.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
08 Oct 74
Observed Australian Regional MUFs
Equatorial PNG Region:
Enhanced by 20%.
Northern Australian Region:
Near predicted monthly values during local day,
Enhanced by 40% during local night.
Southern Australian and New Zealand Region:
Near predicted monthly values during local day,
Enhanced by 25% during local night.
Enhanced by 20% after local dawn.
Antarctic Region (Casey/Scott Base):
Near predicted monthly values over the UT day.
Predicted Monthly T index for October: 54
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
09 Oct 90 10 to 20% above predicted monthly values
10 Oct 90 10 to 20% above predicted monthly values
11 Oct 90 10 to 20% above predicted monthly values
COMMENT: Higher than normal MUFs expected. Mild degradation possible
after 13 Oct southern Aus/NZ region.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 07 Oct
Daily Proton Fluence >1 MeV: 8.2E+05
Daily Proton Fluence >10 MeV: 1.1E+04
Daily Electron Fluence >2 MeV: 5.70E+06 (normal)
X-ray background: B2.6
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
ACE Satellite Solar Wind Day Averaged Data for 07 Oct
Speed: NA km/sec Density: NA p/cc Temp: NA K Bz: NA nT
(Courtesy Space Environment Center, Boulder USA)
ACE data can be incorrect during strong proton events.
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