[Ips-dsgr] IPS Daily Report - 02 May 08
rwc
rwc at ips.gov.au
Sat May 3 09:24:30 EST 2008
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 02/2330Z MAY 2008 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 02 MAY AND FORECAST FOR 03 MAY - 05 MAY
STATUS INDICATORS SOL:GREEN MAG:GREEN ION: GREEN
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1A. SOLAR SUMMARY
Activity 02 May: Very low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 02 May: 68/2
1B. SOLAR FORECAST
03 May 04 May 05 May
Activity Very low Very low Very low
Fadeouts None expected None expected None expected
10.7cm/SSN 68/2 68/2 68/2
COMMENT: Solar activity remains very low. Solar wind parameters
are mildly elevated due to a coronal hole wind stream.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 02 May: Quiet to Unsettled
Estimated Indices 02 May : A K
Australian Region 7 32213111
Darwin 6 32212111
Townsville 10 33323122
Learmonth 7 32313001
Camden 5 32213000
Canberra 5 32203000
Hobart 7 32213111
Casey(Ant) 9 33323111
Observed Regional daily pc3 Indices 02 May :
Darwin 0 (Quiet)
Townsville 0 (Quiet)
Learmonth 0 (Quiet)
Canberra 0 (Quiet)
Hobart 5 (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 and have been shown to be
well correlated with rejection of high resolution aeromagnetic
survey flight-line data.
NOTE: Indices may have been generated from data obtained in
cooperation with the following organisations: Geoscience Australia,
University of Newcastle Space Physics Group, Australian Government
Antarctic Division and Space Environment Research Center, Japan.
Estimated AFr/Ap Indices 02 May : A
Fredericksburg 10
Planetary 12
Observed AFr/Ap Indices 01 May : A K
Fredericksburg 6
Planetary 9 0120 1334
2B. MAGNETIC FORECAST
Date Ap Conditions
03 May 10 Quiet to Unsettled
04 May 8 Quiet to Unsettled
05 May 8 Quiet to Unsettled
COMMENT: Solar wind speed is mildly elevated at ~450 km/s. The
Bz component of the IMF showed moderate fluctuations of up to
+/-8 nT during the first half of the UT day resulting in mostly
unsettled geomagnetic conditions. Activity declined to generally
quiet levels over the second half of the UT day. Expect quiet
to unsettled conditions next three days.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
02 May Normal Normal Normal-fair
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
03 May Normal Normal Normal-Fair
04 May Normal Normal Normal-Fair
05 May Normal Normal Normal-Fair
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
02 May 14
Observed Australian Regional MUFs
Near predicted monthly values
Predicted Monthly T index for May: 6
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
03 May 10 Near predicted monthly values
04 May 10 Near predicted monthly values
05 May 10 Near predicted monthly values
COMMENT: Expect mostly normal ionospheric conditions low to mid
latitudes. Generally weak night-time ionosphere observed S
Aus/Antarctic regions. Disturbed periods possible 03 - 05 May
mainly at high latitudes in association with elevated
geomagnetic activity.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 01 May
Daily Proton Fluence >1 MeV: 1.3E+06
Daily Proton Fluence >10 MeV: 1.7E+04
Daily Electron Fluence >2 MeV: 1.40E+08 (moderate fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability:13%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: A1.0
ACE Satellite Solar Wind Day Averaged Data for 01 May
Speed: 476 km/sec Density: 3.2 p/cc Temp: 126000 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
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