[Ips-dsgr] IPS Daily Report - 10 May 06
rwc
rwc at ips.gov.au
Thu May 11 09:54:36 EST 2006
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 10/2330Z MAY 2006 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 10 MAY AND FORECAST FOR 11 MAY - 13 MAY
STATUS INDICATORS SOL:GREEN MAG:** RED ** ION: GREEN
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1A. SOLAR SUMMARY
Activity 10 May: Very low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 10 May: 78/17
1B. SOLAR FORECAST
11 May 12 May 13 May
Activity Very low Very low Very low
Fadeouts None expected None expected None expected
10.7cm/SSN 75/13 75/13 75/13
COMMENT: Solar activity was very low today and is expected to
remain very low for the next 3 days. Region 10882 near the west
limb has shown minor plage fluctuations, otherwise appears stable.
There is a slight chance for a C-class x-ray flare from this
region. The ACE spacecraft shows a solar wind which stepped up
slightly to 410 km/s. The Bz component of the interplanetary
magnetic field has shifted to the south ranging from 0 to -6
nT and is presently about -4 nT.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 10 May: Quiet
Estimated Indices 10 May : A K
Australian Region 3 11111112
Darwin 4 11111122
Learmonth 3 11------
Culgoora 2 01100012
Camden 4 11111122
Canberra 1 00000012
Hobart 2 10001012
Casey(Ant) 5 22221112
Observed Regional daily pc3 Indices 10 May :
Canberra 14 (Quiet)
Learmonth 0 (Quiet)
Culgoora 4 (Quiet)
Hobart 8 (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 10 May : A
Fredericksburg 5
Planetary 10
Observed AFr/Ap Indices 09 May : A K
Fredericksburg 2
Planetary 4 0012 1112
2B. MAGNETIC FORECAST
Date Ap Conditions
11 May 25 active
12 May 40 Minor storm
13 May 35 Active to Minor storm
COMMENT: IPS Geomagnetic Warning 5 was issued on 9 May and is
current for interval 10-12 May. The Earth is entering a high
speed solar when stream induced by a coronal hole in a geoeffective
position. The interplanetary magnetic field has shifted slightly
to the south and is presently -4 nT. Due to these factors it
is expected that the geomagnetic activity levels will become
active to minor storm levels over the next 3 days.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
10 May Normal Normal Normal-fair
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
11 May Normal Normal Fair
12 May Fair-normal Fair-normal Poor
13 May Fair-normal Normal Poor-fair
COMMENT: Today expect HF conditions to remain mostly normal in
the low and mid latitudes and normal to fair in the high latitudes.
As the geomagnetic activity takes effect conditions are likely
to degrade over the following 2 days.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
10 May 29
Observed Australian Regional MUFs
near predicted monthly values
Predicted Monthly T index for May: 15
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
11 May 30 near predicted monthly values
12 May 20 near predicted monthly values/depressed 20 to
30%
13 May 10 near predicted monthly values/depressed 20 to
30%
COMMENT: IPS HF Communications Warning 7 was issued on 9 May
and is current for interval 11-12 May. Expect near normal HF
conditions today, but over the following 2 days expect HF conditions
to degrade.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 09 May
Daily Proton Fluence >1 MeV: 5.2E+05
Daily Proton Fluence >10 MeV: 1.6E+04
Daily Electron Fluence >2 MeV: 1.50E+08 (moderate fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability:13%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: A5.7
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