[Ips-dsgr] IPS Daily Report - 29 September 06
rwc
rwc at ips.gov.au
Sat Sep 30 09:18:11 EST 2006
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 29/2330Z SEPTEMBER 2006 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 29 SEPTEMBER AND FORECAST FOR 30 SEPTEMBER - 02 OCTOBER
STATUS INDICATORS SOL:GREEN MAG:GREEN ION: GREEN
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1A. SOLAR SUMMARY
Activity 29 Sep: Very low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 29 Sep: 77/16
1B. SOLAR FORECAST
30 Sep 01 Oct 02 Oct
Activity Very low Very low Very low
Fadeouts None expected None expected None expected
10.7cm/SSN 80/20 80/20 80/20
COMMENT: Solar wind speed has continued to decline and is currently
280 km/sec. The Bz component of the interplanetary magnetic field
is mainly neutral fluctuating between +/- 1 nT.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 29 Sep: Quiet
Estimated Indices 29 Sep : A K
Australian Region 3 11201121
Darwin 5 11112222
Learmonth 4 11111221
Culgoora 3 11201121
Camden 3 11201121
Canberra 3 10201121
Hobart 2 00201110
Casey(Ant) 7 22311222
Observed Regional daily pc3 Indices 29 Sep :
Charters_Towers 0 (Quiet)
Learmonth 0 (Quiet)
Camden 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.
Estimated AFr/Ap Indices 29 Sep : A
Fredericksburg 3
Planetary 5
Observed AFr/Ap Indices 28 Sep : A K
Fredericksburg 2
Planetary 2 0011 1001
2B. MAGNETIC FORECAST
Date Ap Conditions
30 Sep 12 Unsettled
01 Oct 8 Quiet to Unsettled
02 Oct 8 Quiet to Unsettled
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
29 Sep Fair Fair-normal Normal
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
30 Sep Fair-normal Normal Normal-fair
01 Oct Fair-normal Normal Normal-fair
02 Oct Normal Normal Normal-fair
COMMENT: Depressed ionospheric support has been observed in low
and mid lattitudes over the last 24 hours. Expect HF conditions
to improve over the next several days.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
29 Sep 5
Observed Australian Regional MUFs
Equatorial PNG/Niue Region:
Depressed by 25% during local day,
Depressed by 25% during local night.
Northern Australian Region:
Near predicted monthly values during local day,
Depressed by 15% during local night.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values over the UT day.
Predicted Monthly T index for September: 11
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
30 Sep 5 10 to 20% below predicted monthly values
01 Oct 8 10 to 20% below predicted monthly values
02 Oct 11 near predicted monthly values
COMMENT: HF conditions in Northern Australian and Equatorial
regions remain depressed. Expect HF conditions to improve over
the next several days.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 28 Sep
Daily Proton Fluence >1 MeV: 3.0E+06
Daily Proton Fluence >10 MeV: 1.6E+04
Daily Electron Fluence >2 MeV: 1.50E+08 (moderate fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability:13%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: A1.4
ACE Satellite Solar Wind Day Averaged Data for 28 Sep
Speed: 386 km/sec Density: 3.6 p/cc Temp: 31900 K Bz: 2 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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