[Ips-dsgr] IPS Daily Report - 23 July 06
rwc
rwc at ips.gov.au
Mon Jul 24 09:50:42 EST 2006
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 23/2330Z JULY 2006 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 23 JULY AND FORECAST FOR 24 JULY - 26 JULY
STATUS INDICATORS SOL:GREEN MAG:*YELLOW* ION: GREEN
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1A. SOLAR SUMMARY
Activity 23 Jul: Very low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 23 Jul: 77/16
1B. SOLAR FORECAST
24 Jul 25 Jul 26 Jul
Activity Very low Very low Very low
Fadeouts None expected None expected None expected
10.7cm/SSN 75/13 75/13 80/20
COMMENT: Region 901 produced several B-class flares during the
past 24 hours, however, is unlikely to be the source of any significant
flare activity.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 23 Jul: Quiet
Estimated Indices 23 Jul : A K
Australian Region 2 11111101
Darwin 3 21111101
Learmonth 1 11010100
Culgoora 1 11100001
Camden 4 22112111
Canberra 1 10110000
Hobart 1 01110000
Casey(Ant) 3 11111111
Observed Regional daily pc3 Indices 23 Jul :
Canberra 0 (Quiet)
Learmonth 0 (Quiet)
Culgoora 4 (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.
Estimated AFr/Ap Indices 23 Jul : A
Fredericksburg 3
Planetary 5
Observed AFr/Ap Indices 22 Jul : A K
Fredericksburg 3
Planetary 4 1211 1112
2B. MAGNETIC FORECAST
Date Ap Conditions
24 Jul 20 Unsettled to active with the slight chance of
minor storm periods.
25 Jul 15 Unsettled to active
26 Jul 8 Quiet to Unsettled
COMMENT: IPS Geomagnetic Warning 8 was issued on 21 July and
is current for interval 24-25 July. The CME observed on 20 July
may have a glancing impact on the Earth during 24-25 July and
produce mildly elevated geomagnetic activity levels during this
period.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
23 Jul Normal-fair Normal Normal
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
24 Jul Normal-fair Normal-fair Normal-fair
25 Jul Normal-fair Normal Normal-fair
26 Jul Normal Normal Normal-fair
COMMENT: HF conditions are expected to be slightly degraded for
high-mid latitudes for 24-25 July as the result of anticipated
mildly elevated geomagnetic activity levels. Slightly degraded
conditions are also possible for equatorial latitudes during
local day.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
23 Jul 26
Observed Australian Regional MUFs
Equatorial PNG/Niue Region:
Depressed by 20% during local day,
Near predicted monthly values during local night.
Northern Australian Region:
Near predicted monthly values.
Southern Australian and New Zealand Region:
Near predicted monthly values during local day,
Enhanced by 20% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Mostly near predicted monthly values.
Predicted Monthly T index for July: 13
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
24 Jul 10 near predicted monthly values/depressed 5 to
10%
25 Jul 10 depressed 5 to 10%/near predicted monthly values
26 Jul 15 Near predicted monthly values
COMMENT: HF conditions are expected to be slightly degraded for
southern Aus/NZ regions for 24-25 July as the result of anticipated
mildly elevated geomagnetic activity levels. Slightly degraded
conditions are also possible for northern Australian regions
during local day.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 22 Jul
Daily Proton Fluence >1 MeV: 5.3E+05
Daily Proton Fluence >10 MeV: 1.7E+04
Daily Electron Fluence >2 MeV: 2.50E+06 (normal fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability: 0%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: A3.0
ACE Satellite Solar Wind Day Averaged Data for 22 Jul
Speed: 303 km/sec Density: 4.7 p/cc Temp: 14300 K Bz: 0 nT
(Courtesy Space Environment Center, Boulder USA)
ACE data can be incorrect during strong proton events.
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