[Ips-dsgr] IPS Daily Report - 04 May 08
rwc
rwc at ips.gov.au
Mon May 5 09:15:01 EST 2008
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 04/2330Z MAY 2008 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 04 MAY AND FORECAST FOR 05 MAY - 07 MAY
STATUS INDICATORS SOL:GREEN MAG:GREEN ION: GREEN
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1A. SOLAR SUMMARY
Activity 04 May: Very low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 04 May: 68/2
1B. SOLAR FORECAST
05 May 06 May 07 May
Activity Very low Very low Very low
Fadeouts None expected None expected None expected
10.7cm/SSN 68/2 68/2 68/2
COMMENT: Solar activity remains very low. Solar wind parameters
are moderately elevated due to a coronal hole wind stream.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 04 May: Quiet to Unsettled
Estimated Indices 04 May : A K
Australian Region 8 22332112
Darwin 5 22221121
Townsville 9 223332-0
Learmonth 8 22322222
Camden 5 12221112
Canberra 7 12331112
Hobart 7 12331112
Casey(Ant) 11 333322-2
Observed Regional daily pc3 Indices 04 May :
Darwin 0 (Quiet)
Townsville 0 (Quiet)
Learmonth 0 (Quiet)
Canberra 40 (Quiet to unsettled)
Hobart 34 (Quiet to 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 04 May : A
Fredericksburg 8
Planetary 12
Observed AFr/Ap Indices 03 May : A K
Fredericksburg 9
Planetary 12 3323 3232
2B. MAGNETIC FORECAST
Date Ap Conditions
05 May 8 Quiet to Unsettled
06 May 10 Quiet to Unsettled
07 May 8 Quiet to Unsettled
COMMENT: Solar wind parameters remain moderately elevated due
to a coronal hole wind stream. The geomagnetic field was quiet
to unsettled with isolated active intervals observed at high
latitudes only. Expect similar conditions next three days.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
04 May Normal Normal Normal-fair
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
05 May Normal Normal Normal-Fair
06 May Normal Normal Normal-Fair
07 May Normal Normal Normal-Fair
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
04 May 7
Observed Australian Regional MUFs
Equatorial PNG/Niue Region:
Near predicted monthly values during local day,
Variable conditions during local night.
Northern Australian Region:
Near predicted monthly values.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Variable localised enhancements/disturbances.
Predicted Monthly T index for May: 6
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
05 May 10 Near predicted monthly values
06 May 10 Near predicted monthly values
07 May 10 Near predicted monthly values
COMMENT: Some short-term variability observed Equatorial/N Aus
regions over the UT day. Expect mostly normal ionospheric conditions
low to mid latitudes. Disturbed periods possible 05 - 06 May
mainly at high latitudes in association with elevated geomagnetic
activity.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 03 May
Daily Proton Fluence >1 MeV: 2.2E+06
Daily Proton Fluence >10 MeV: 1.6E+04
Daily Electron Fluence >2 MeV: 2.30E+07 (normal fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability: 4%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: A1.0
ACE Satellite Solar Wind Day Averaged Data for 03 May
Speed: 498 km/sec Density: 4.9 p/cc Temp: 148000 K Bz: 2 nT
(Courtesy Space Environment Center, Boulder USA)
ACE data can be incorrect during strong proton events.
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