[Ips-dsgr] IPS Daily Report - 24 May 06
rwc
rwc at ips.gov.au
Thu May 25 09:33:48 EST 2006
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 24/2330Z MAY 2006 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 24 MAY AND FORECAST FOR 25 MAY - 27 MAY
STATUS INDICATORS SOL:GREEN MAG:GREEN ION: GREEN
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1A. SOLAR SUMMARY
Activity 24 May: Very low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 24 May: 84/26
1B. SOLAR FORECAST
25 May 26 May 27 May
Activity Low Low Low
Fadeouts None expected None expected None expected
10.7cm/SSN 85/27 85/27 85/27
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 24 May: Quiet
Estimated Indices 24 May : A K
Australian Region 4 11222111
Darwin 3 11221101
Learmonth 3 01222100
Culgoora 2 11111101
Camden 6 22122222
Canberra 2 01122100
Hobart 2 11111100
Casey(Ant) 9 23322222
Observed Regional daily pc3 Indices 24 May :
Canberra 20 (Quiet)
Learmonth 0 (Quiet)
Culgoora 51 (Unsettled)
Hobart 10 (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 24 May : A
Fredericksburg 5
Planetary 6
Observed AFr/Ap Indices 23 May : A K
Fredericksburg 4
Planetary 7 3321 1121
2B. MAGNETIC FORECAST
Date Ap Conditions
25 May 8 Quiet to Unsettled
26 May 7 Quiet
27 May 7 Quiet
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
24 May Fair Fair Fair
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
25 May Fair-normal Fair-normal Fair-normal
26 May Fair-normal Fair-normal Fair-normal
27 May Fair-normal Fair-normal Fair-normal
COMMENT: Spread F, mostly during night hours, can be expected
to degrade communications.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
24 May 28
Observed Australian Regional MUFs
Near predicted monthly values to 30% enhanced at times at
all stations. Sporadic E observed at equatorial and
northern Australian stations mostly during afternoon.
Spread F observed at all stations mostly between 10 and
20 UT.
Predicted Monthly T index for May: 15
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
25 May 25 Near predicted monthly values to 30% enhanced.
26 May 25 Near predicted monthly values to 30% enhanced.
27 May 25 Near predicted monthly values to 30% enhanced.
COMMENT: Night communications likely to be degraded due to spread
F.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 23 May
Daily Proton Fluence >1 MeV: 1.3E+05
Daily Proton Fluence >10 MeV: 1.5E+04
Daily Electron Fluence >2 MeV: 5.20E+06 (normal fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability: 1%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: A3.4
ACE Satellite Solar Wind Day Averaged Data for 23 May
Speed: 465 km/sec Density: 1.7 p/cc Temp: 113000 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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