[Ips-dsgr] IPS Daily Report - 17 November 10
rwc
rwc at ips.gov.au
Thu Nov 18 10:07:18 EST 2010
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 17/2330Z NOVEMBER 2010 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 17 NOVEMBER AND FORECAST FOR 18 NOVEMBER - 20 NOVEMBER
STATUS INDICATORS SOL:GREEN MAG:GREEN ION: GREEN
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1A. SOLAR SUMMARY
Activity 17 Nov: Very low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 17 Nov: 91/36
1B. SOLAR FORECAST
18 Nov 19 Nov 20 Nov
Activity Low Low Low
Fadeouts None expected None expected None expected
10.7cm/SSN 90/34 90/34 88/32
COMMENT: Solar activity was Very Low during the UT day. Several
B-class x-ray flares were observed during the period. Expect
current trend to continue with a moderate chance of C-class flares.
The solar wind speed decreased from 500 to 420 km/s over the
last 24 hours and is presently 440 km/s. Bz component of the
interplanetary magnetic field ranged between +4/-3nT.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 17 Nov: Quiet to Unsettled
Estimated Indices 17 Nov : A K
Australian Region 7 23222121
Darwin 6 22222122
Learmonth 5 22222111
Canberra 2 12110010
Casey(Ant) 11 34-22132
Observed Regional daily pc3 Indices 17 Nov :
Darwin 0 (Quiet)
Townsville 0 (Quiet)
Learmonth 0 (Quiet)
Gnangara 19 (Quiet)
Canberra 2 (Quiet)
Hobart 60 (Unsettled)
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 17 Nov : A
Fredericksburg 4
Planetary 5
Observed AFr/Ap Indices 16 Nov : A K
Fredericksburg 4
Planetary 6 3101 2311
2B. MAGNETIC FORECAST
Date Ap Conditions
18 Nov 6 Quiet
19 Nov 4 Quiet
20 Nov 4 Quiet
COMMENT: The geomagnetic activity was Quiet to Unsettled in the
Australian region with cases of Active conditions in the Antarctic
region. Expect mostly Quiet conditions over the next three days.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
17 Nov Normal Normal Normal-fair
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
18 Nov Normal Normal Normal
19 Nov Normal Normal Normal
20 Nov Normal Normal Normal
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
17 Nov 19
Observed Australian Regional MUFs
Cocos Island Region:
Enhanced by 25% during local day,
Near predicted monthly values during local night.
Niue Island Region:
Near predicted monthly values during local day,
Depressed by 20% during local night.
Northern Australian Region:
Near predicted monthly values during local day,
Enhanced by 15% during local night.
Southern Australian and New Zealand Region:
Near predicted monthly values over the UT day.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
Predicted Monthly T index for November: 33
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
18 Nov 20 near predicted monthly values
19 Nov 20 near predicted monthly values
20 Nov 20 near predicted monthly values
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 16 Nov
Daily Proton Fluence >1 MeV: 1.3E+06
Daily Proton Fluence >10 MeV: 1.4E+04
Daily Electron Fluence >2 MeV: 8.50E+07 (normal fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability:10%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: B1.6
ACE Satellite Solar Wind Day Averaged Data for 16 Nov
Speed: 526 km/sec Density: 0.1 p/cc Temp: 164000 K Bz: 1 nT
(Courtesy Space Weather Prediction 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
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