[Ips-dsgr] IPS Daily Report - 22 February 08
rwc
rwc at ips.gov.au
Sat Feb 23 10:07:53 EST 2008
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 22/2330Z FEBRUARY 2008 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 22 FEBRUARY AND FORECAST FOR 23 FEBRUARY - 25 FEBRUARY
STATUS INDICATORS SOL:GREEN MAG:GREEN ION: GREEN
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1A. SOLAR SUMMARY
Activity 22 Feb: Very low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 22 Feb: 72/8
1B. SOLAR FORECAST
23 Feb 24 Feb 25 Feb
Activity Very low Very low Very low
Fadeouts None expected None expected None expected
10.7cm/SSN 70/5 70/5 70/5
COMMENT: The visible solar disk remains spotless.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 22 Feb: Quiet
Estimated Indices 22 Feb : A K
Australian Region 4 21212111
Darwin 5 22112112
Townsville 7 22222222
Learmonth 5 22113101
Camden 4 11212102
Canberra 3 11212001
Hobart 3 10222101
Casey(Ant) 7 3-322111
Observed Regional daily pc3 Indices 22 Feb :
Darwin 0 (Quiet)
Townsville 0 (Quiet)
Learmonth 0 (Quiet)
Canberra 0 (Quiet)
Hobart 2 (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 22 Feb : A
Fredericksburg 5
Planetary 5
Observed AFr/Ap Indices 21 Feb : A K
Fredericksburg 3
Planetary 6 0012 3211
2B. MAGNETIC FORECAST
Date Ap Conditions
23 Feb 4 Quiet
24 Feb 4 Quiet
25 Feb 4 Quiet
COMMENT: The geomagnetic field was generally quiet. Isolated
unsettled to active periods observed at high latitudes only.
Expect mosty quiet conditions next three days.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
22 Feb Normal Normal Normal
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
23 Feb Normal Normal Normal
24 Feb Normal Normal Normal
25 Feb Normal Normal Normal
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
22 Feb -2
Observed Australian Regional MUFs
Near predicted monthly values
Predicted Monthly T index for February: 6
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
23 Feb 0 Near predicted monthly values
24 Feb 0 Near predicted monthly values
25 Feb 0 Near predicted monthly values
COMMENT: Localised variable depressions observed N/Central Aus
latitudes during local day. Occasionally intense sporadic-E observed
local afternoon/evening Equatorial/Aus regions. Expect mostly
normal HF conditions next three days but variable depressions
possible at times Equatorial/Aus regions.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 21 Feb
Daily Proton Fluence >1 MeV: 3.7E+06
Daily Proton Fluence >10 MeV: 1.8E+04
Daily Electron Fluence >2 MeV: 1.10E+08 (moderate fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability:11%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: A0.0
ACE Satellite Solar Wind Day Averaged Data for 21 Feb
Speed: 492 km/sec Density: 2.8 p/cc Temp: 119000 K Bz: 0 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
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