[Ips-dsgr] IPS Daily Report - 21 July 06
rwc
rwc at ips.gov.au
Sat Jul 22 09:47:00 EST 2006
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 21/2330Z JULY 2006 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 21 JULY AND FORECAST FOR 22 JULY - 24 JULY
STATUS INDICATORS SOL:GREEN MAG:*YELLOW* ION: GREEN
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1A. SOLAR SUMMARY
Activity 21 Jul: Very low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 21 Jul: 73/9
1B. SOLAR FORECAST
22 Jul 23 Jul 24 Jul
Activity Low Low Low
Fadeouts None expected None expected None expected
10.7cm/SSN 75/13 75/13 75/13
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 21 Jul: Quiet
Estimated Indices 21 Jul : A K
Australian Region 1 11100000
Darwin 1 11110000
Learmonth 0 10100000
Culgoora 0 01000001
Camden 4 11111212
Canberra 0 00000000
Hobart 0 00000000
Casey(Ant) 2 11111010
Observed Regional daily pc3 Indices 21 Jul :
Canberra 0 (Quiet)
Learmonth 0 (Quiet)
Culgoora 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.
Estimated AFr/Ap Indices 21 Jul : A
Fredericksburg 3
Planetary 5
Observed AFr/Ap Indices 20 Jul : A K
Fredericksburg 2
Planetary 3 1100 1111
2B. MAGNETIC FORECAST
Date Ap Conditions
22 Jul 5 Quiet
23 Jul 5 Quiet
24 Jul 20 Unsettled to active with the slight chance of
minor storm periods.
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
21 Jul Normal Normal Normal
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
22 Jul Normal Normal Normal
23 Jul Normal Normal Normal
24 Jul Normal Normal-Fair Fair
COMMENT: HF conditions are expected to remain mostly normal for
22-23 July, with slightly degraded conditions possible for high-mid
latitudes for 24-25 July as the result of anticipated mildly
elevated geomagnetic activity levels.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
21 Jul 21
Observed Australian Regional MUFs
Equatorial PNG/Niue Region:
Depressed by 15% 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 30% 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
22 Jul 15 Near predicted monthly values
23 Jul 15 Near predicted monthly values
24 Jul 5 near predicted monthly values/depressed 5 to
10%
COMMENT: HF conditions are expected to remain mostly normal for
22-23 July, with slightly degraded conditions possible for southern
Australian/NZ regions for 24-25 July as the result of anticipated
mildly elevated geomagnetic activity levels.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 20 Jul
Daily Proton Fluence >1 MeV: 3.9E+05
Daily Proton Fluence >10 MeV: 1.6E+04
Daily Electron Fluence >2 MeV: 4.10E+06 (normal fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability: 1%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: A1.0
ACE Satellite Solar Wind Day Averaged Data for 20 Jul
Speed: 294 km/sec Density: 2.0 p/cc Temp: 13600 K Bz: 0 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
Haymarket NSW 1240 AUSTRALIA FTP: ftp://ftp.ips.gov.au
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