[Ips-dsgr] IPS Daily Report - 28 August 08
rwc
rwc at ips.gov.au
Fri Aug 29 09:05:55 EST 2008
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 28/2330Z AUGUST 2008 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 28 AUGUST AND FORECAST FOR 29 AUGUST - 31 AUGUST
STATUS INDICATORS SOL:GREEN MAG:GREEN ION: GREEN
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1A. SOLAR SUMMARY
Activity 28 Aug: Very low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 28 Aug: 66/0
1B. SOLAR FORECAST
29 Aug 30 Aug 31 Aug
Activity Very low Very low Very low
Fadeouts None expected None expected None expected
10.7cm/SSN 67/0 67/0 67/0
COMMENT: No active regions or coronal holes on the visible solar
disk. Solar wind remains slow and the IMF stable.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 28 Aug: Quiet
Estimated Indices 28 Aug : A K
Australian Region 2 11110111
Darwin 3 11111111
Townsville 6 22211222
Learmonth 1 11010110
Camden 1 11000011
Canberra 1 11100000
Hobart 2 12010111
Casey(Ant) 4 22111111
Observed Regional daily pc3 Indices 28 Aug :
Darwin 0 (Quiet)
Townsville 0 (Quiet)
Learmonth 0 (Quiet)
Alice_Springs 0 (Quiet)
Camden 0 (Quiet)
Gnangara 0 (Quiet)
Canberra 0 (Quiet)
Hobart 0 (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 28 Aug : A
Fredericksburg 4
Planetary 5
Observed AFr/Ap Indices 27 Aug : A K
Fredericksburg 2
Planetary 3 1200 1101
2B. MAGNETIC FORECAST
Date Ap Conditions
29 Aug 3 Quiet
30 Aug 3 Quiet
31 Aug 3 Quiet
COMMENT: The geomagnetic field was quiet over the UT day. Expect
Quiet conditions next three days.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
28 Aug Normal-fair Normal Normal
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
29 Aug Normal-fair Normal Normal
30 Aug Normal-fair Normal Normal
31 Aug Normal-fair Normal Normal
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
28 Aug -6
Observed Australian Regional MUFs
Equatorial PNG/Niue Region:
Depressed by 20% during local day,
Near predicted monthly values during local night.
Depressed by 20% after local dawn.
Northern Australian Region:
Depressed by 25% during local day,
Near predicted monthly values during local night.
Southern Australian and New Zealand Region:
Near predicted monthly values during local day,
Enhanced by 15% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Enhanced by 30% over the UT day.
Predicted Monthly T index for August: 2
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
29 Aug -5 Near predicted monthly values
30 Aug -5 Near predicted monthly values
31 Aug -5 Near predicted monthly values
COMMENT: Ionospheric conditions were mostly normal over the UT
day. Some variable depressions were seen in the Equatorial/N
Aus regions during the local day. Some sporadic-E also observed
at equatorial stations during local day. Expect mostly normal
conditions next three days with continuing daytime depressions
in the Equatorial/N Aus region.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 27 Aug
Daily Proton Fluence >1 MeV: 1.0E+06
Daily Proton Fluence >10 MeV: 1.9E+04
Daily Electron Fluence >2 MeV: 1.60E+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 27 Aug
Speed: 313 km/sec Density: 4.5 p/cc Temp: 42000 K Bz: 1 nT
(Courtesy Space Environment Center, Boulder USA)
ACE data can be incorrect during strong proton events.
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