[Ips-dsgr] IPS Daily Report - 02 May 07
rwc
rwc at ips.gov.au
Thu May 3 09:55:11 EST 2007
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 02/2330Z MAY 2007 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 02 MAY AND FORECAST FOR 03 MAY - 05 MAY
STATUS INDICATORS SOL:*YELLOW* MAG:GREEN ION: GREEN
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1A. SOLAR SUMMARY
Activity 02 May: Low
Flares: see comment below.
Observed 10.7 cm flux/Equivalent Sunspot Number for 02 May: 87/30
1B. SOLAR FORECAST
03 May 04 May 05 May
Activity Low Low Low
Fadeouts Possible Possible Possible
10.7cm/SSN 85/27 85/27 85/27
COMMENT: A C9/1N flare (as observed by Culgoora observatory)
was observed from region 953 at 2344UT on 2 May. Further C-class
flares are possible with the chance of M-class flare activity.
Solar wind speeds have continued to decline and are presently
around 350 km/s.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 02 May: Quiet
Estimated Indices 02 May : A K
Australian Region 3 21111101
Darwin 4 21111112
Townsville 5 22111212
Learmonth - --------
Camden 1 11100101
Canberra 0 10000100
Hobart 1 11100100
Casey(Ant) 4 22211101
Observed Regional daily pc3 Indices 02 May :
Darwin 0 (Quiet)
Townsville 0 (Quiet)
Learmonth 0 (Quiet)
Camden 2 (Quiet)
Canberra 0 (Quiet)
Hobart 6 (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 02 May : A
Fredericksburg 2
Planetary 5
Observed AFr/Ap Indices 01 May : A K
Fredericksburg 5
Planetary 8 3331 1222
2B. MAGNETIC FORECAST
Date Ap Conditions
03 May 5 Quiet
04 May 5 Quiet
05 May 10 Mostly quiet to unsettled, isolated active periods
possible.
COMMENT: Geomagnetic activity should be mostly quiet for the
next few days.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
02 May Normal Normal Normal
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
03 May Normal Normal Normal
04 May Normal Normal Normal
05 May Normal Normal Normal-Fair
COMMENT: MUFs should be mostly near predicted monthly values
over the next few days with SWFs possible.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
02 May 18
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 during local day,
Enhanced by 15% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
Predicted Monthly T index for May: 9
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
03 May 10 near predicted monthly values
04 May 10 Near predicted monthly values
05 May 10 Near predicted monthly values
COMMENT: MUFs should be mostly near predicted monthly values
over the next few days with SWFs possible.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 01 May
Daily Proton Fluence >1 MeV: 1.1E+06
Daily Proton Fluence >10 MeV: 1.6E+04
Daily Electron Fluence >2 MeV: 4.00E+08 (moderate fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability:21%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: A3.8
ACE Satellite Solar Wind Day Averaged Data for 01 May
Speed: 513 km/sec Density: 0.9 p/cc Temp: 87700 K Bz: -1 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
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