[Ips-dsgr] IPS Daily Report - 09 May 04
rwc
rwc at ips.gov.au
Mon May 10 09:52:39 EST 2004
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 09/2330Z MAY 2004 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 09 MAY AND FORECAST FOR 10 MAY - 12 MAY
STATUS INDICATORS SOL:GREEN MAG:GREEN ION: GREEN
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1A. SOLAR SUMMARY
Activity 09 May: Very low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 09 May: 93/38
1B. SOLAR FORECAST
10 May 11 May 12 May
Activity Very low Very low Very low
Fadeouts None expected None expected None expected
10.7cm/SSN 95/41 95/41 90/34
COMMENT: Solar wind speeds have continued to decline over the
past 24 hours down to approximately 400km/s. Recent CME activity
is not expected to be geoeffective.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 09 May: Quiet
Estimated Indices 09 May : A K
Australian Region 4 1211 2201
Darwin 3 1200 2201
Townsville 4 1211 2201
Learmonth 3 1201 2201
Culgoora 3 1101 2201
Canberra 3 1201 2201
Hobart 4 1211 2201
Casey(Ant) 7 3321 1202
Observed Regional daily pc3 Indices 09 MAY :
Townsville 0 (Quiet)
Learmonth 0 (Quiet)
Culgoora 0 (Quiet)
Canberra 6 (Quiet)
Hobart 4 (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 May : A
Fredericksburg 8
Planetary 10
Observed AFr/Ap Indices 08 May : A K
Fredericksburg 7
Planetary 10 3322 3332
2B. MAGNETIC FORECAST
Date Ap Conditions
10 May 6 Quiet
11 May 6 Quiet
12 May 6 Quiet
COMMENT: Generally quiet geomagnetic conditions expected for
the next few days. Recent CME activity is not expected to be
geoeffective.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
09 May Normal Normal Normal-fair
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
10 May Normal Normal Normal-fair
11 May Normal Normal Normal
12 May Normal Normal Normal
COMMENT: HF conditions were degraded up to 15% at times for mid-high
latitudes. Slight depressions are again possible at times for
mid-high latitudes for 9 May, otherwise mostly normal conditions
are expected for the next few days.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
09 May 39
Observed Australian Regional MUFs
Equatorial PNG Region:
Enhanced by 35% during local day,
Enhanced by 20% during local night.
Northern Australian Region:
Enhanced by 15% during local day,
Near predicted monthly values during local night.
Southern Australian and New Zealand Region:
Depressed up to 15% at times, otherwise mostly
near predicted monthly values.
Antarctic Region (Casey/Scott Base):
Depressed up to 15% at times, otherwise mostly
near predicted monthly values.
Predicted Monthly T index for May: 43
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
10 May 45 depressed 5 to 10%/near predicted monthly values
11 May 50 Near predicted monthly values
12 May 50 Near predicted monthly values
COMMENT: HF conditions were degraded up to 15% at times for southern
regions. Slight depressions are again possible at times for southern
regions for 9 May, otherwise mostly normal conditions are expected
for the next few days.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 08 May
Daily Proton Fluence >1 MeV: 3.5E+05
Daily Proton Fluence >10 MeV: 1.3E+04
Daily Electron Fluence >2 MeV: 1.60E+08 (moderate)
X-ray background: A6.6
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
ACE Satellite Solar Wind Day Averaged Data for 08 May
Speed: 479 km/sec Density: 2.5 p/cc Temp: 74400 K Bz: 0 nT
(Courtesy Space Environment Center, Boulder USA)
ACE data can be incorrect during strong proton events.
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