[Ips-dsgr] IPS Daily Report - 14 May 07
rwc
rwc at ips.gov.au
Tue May 15 09:29:57 EST 2007
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 14/2330Z MAY 2007 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 14 MAY AND FORECAST FOR 15 MAY - 17 MAY
STATUS INDICATORS SOL:GREEN MAG:GREEN ION: GREEN
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1A. SOLAR SUMMARY
Activity 14 May: Very low
Flares: None
Observed 10.7 cm flux/Equivalent Sunspot Number for 14 May: 73/9
1B. SOLAR FORECAST
15 May 16 May 17 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: Ongoing chance of a C class flare. New region 956 located
at N02 E61. The solar wind speed has remained around 310 km/s
over the last 24 hours. The Bz component of the of the interplanetary
magnetic field has fluctuated mostly between +/-2 nT. A slow
moving CME was observed at 1430 UT originating from the north-east
limb and may be associated with region 956.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 14 May: Quiet
Estimated Indices 14 May : A K
Australian Region 3 11111121
Darwin 4 21111121
Townsville 7 12221232
Learmonth 3 11110220
Camden 2 10110120
Canberra 2 00110120
Hobart 2 10011120
Casey(Ant) 3 11111121
Observed Regional daily pc3 Indices 14 May :
Darwin 0 (Quiet)
Townsville 0 (Quiet)
Learmonth 0 (Quiet)
Camden 6 (Quiet)
Canberra 2 (Quiet)
Hobart 14 (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 14 May : A
Fredericksburg 5
Planetary 5
Observed AFr/Ap Indices 13 May : A K
Fredericksburg 2
Planetary 3 1210 1011
2B. MAGNETIC FORECAST
Date Ap Conditions
15 May 5 Quiet
16 May 5 Quiet
17 May 5 Quiet
COMMENT: The CME mentioned above is not likely to be geo-effective.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
14 May Normal-fair Normal-fair Normal-fair
PCA Event : No event
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
15 May Normal-fair Normal-fair Normal-fair
16 May Normal-fair Normal-fair Normal-fair
17 May Normal-fair Normal-fair Normal-fair
COMMENT: Frequencies should be near predicted monthly values.
Spread F likely at all latitudes during night hours and may
degrade communications.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
14 May 13
Observed Australian Regional MUFs
Equatorial PNG/Niue Region:
Mostly near predicted monthly values.
Northern Australian Region:
Near predicted monthly values.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values to 30% enhanced.
Predicted Monthly T index for May: 9
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
15 May 10 Mostly near predicted monthly values.
16 May 10 Mostly near predicted monthly values.
17 May 10 Mostly near predicted monthly values.
COMMENT: Night time spread F was observed at all latitudes.
Spread F is likely to continue to be present at night and may
degrade communications.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 13 May
Daily Proton Fluence >1 MeV: 4.8E+05
Daily Proton Fluence >10 MeV: 1.8E+04
Daily Electron Fluence >2 MeV: 1.40E+07 (normal fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability: 3%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: A1.0
ACE Satellite Solar Wind Day Averaged Data for 13 May
Speed: 325 km/sec Density: 1.1 p/cc Temp: 13200 K Bz: 0 nT
(Courtesy Space Environment Center, Boulder USA)
ACE data can be incorrect during strong proton events.
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PO Box 1386 WWW: http://www.ips.gov.au
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