[Ips-dsgr] IPS Daily Report - 29 August 07
rwc
rwc at ips.gov.au
Thu Aug 30 09:49:33 EST 2007
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 29/2330Z AUGUST 2007 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 29 AUGUST AND FORECAST FOR 30 AUGUST - 01 SEPTEMBER
STATUS INDICATORS SOL:GREEN MAG:GREEN ION: GREEN
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1A. SOLAR SUMMARY
Activity 29 Aug: Very low
Flares: None
Observed 10.7 cm flux/Equivalent Sunspot Number for 29 Aug: 70/5
1B. SOLAR FORECAST
30 Aug 31 Aug 01 Sep
Activity Very low Very low Very low
Fadeouts None expected None expected None expected
10.7cm/SSN 70/5 70/5 70/5
COMMENT: Solar wind parameters have continued to decline. The
solar wind is approximately 480 km/s at the time of report issue.
A recurrent coronal hole is located near central meridian.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 29 Aug: Mostly quiet.
Estimated Indices 29 Aug : A K
Australian Region 5 22212121
Darwin 5 12212122
Townsville 6 22212222
Learmonth 7 22223221
Camden 3 11102111
Canberra 3 11202111
Hobart 4 11103111
Casey(Ant) 9 33312222
Observed Regional daily pc3 Indices 29 Aug :
Darwin 0 (Quiet)
Townsville 0 (Quiet)
Learmonth 3 (Quiet)
Camden 8 (Quiet)
Canberra 0 (Quiet)
Hobart 4 (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 29 Aug : A
Fredericksburg 4
Planetary 5
Observed AFr/Ap Indices 28 Aug : A K
Fredericksburg 9
Planetary 11 ---6 4322
2B. MAGNETIC FORECAST
Date Ap Conditions
30 Aug 5 Quiet
31 Aug 5 Quiet
01 Sep 14 Quiet to unsettled with isolated active periods
possible.
COMMENT: Magnetic activity is expected to increase on 1 September
due to the effects of a recurrent coronal hole.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
29 Aug Normal-fair Normal-fair Normal-fair
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
30 Aug Normal Normal Normal
31 Aug Normal Normal Normal
01 Sep Normal Normal Normal-Fair
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
29 Aug 2
Observed Australian Regional MUFs
Equatorial PNG/Niue Region:
Near predicted monthly values with depressions
to 30% 04-08 UT.
Northern Australian Region:
Near predicted monthly values with depressions
to 25% 01-07 UT.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values.
Predicted Monthly T index for August: 9
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
30 Aug 9 Near predicted monthly values
31 Aug 9 Near predicted monthly values
01 Sep 10 Near predicted monthly values
COMMENT: Spread F may degrade night time communications.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 28 Aug
Daily Proton Fluence >1 MeV: 4.4E+06
Daily Proton Fluence >10 MeV: 1.6E+04
Daily Electron Fluence >2 MeV: 7.90E+07 (normal fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability: 9%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: A1.0
ACE Satellite Solar Wind Day Averaged Data for 28 Aug
Speed: 633 km/sec Density: 1.6 p/cc Temp: 144000 K Bz: 1 nT
(Courtesy Space Environment Center, Boulder USA)
ACE data can be incorrect during strong proton events.
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