[Ips-dsgr] IPS Daily Report - 29 September 10
rwc
rwc at ips.gov.au
Thu Sep 30 09:29:59 EST 2010
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 29/2330Z SEPTEMBER 2010 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: 91/36
1B. SOLAR FORECAST
30 Sep 01 Oct 02 Oct
Activity Low Low Low
Fadeouts None expected None expected None expected
10.7cm/SSN 84/26 83/24 83/24
COMMENT: Region 1109 (N22W24) has decreased in size while region
1111 (N23E55) was numbered. There is a moderate chance of C-class
x-ray events. The solar wind speed declined to be around 450 km/s
at report issue, while the IMF Bz range was +/-5 nT.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 29 Sep: Quiet. Unsettled,
with isolated active levels observed at high latitudes in the
first half of the reporting period.
Estimated Indices 29 Sep : A K
Australian Region 4 12212111
Darwin 4 12111112
Townsville 7 22222222
Learmonth 3 22112100
Canberra 2 00301000
Hobart 2 11112100
Casey(Ant) 8 -3331111
Observed Regional daily pc3 Indices 29 Sep :
Darwin 0 (Quiet)
Townsville 14 (Quiet)
Learmonth 0 (Quiet)
Alice_Springs 0 (Quiet)
Gnangara 2 (Quiet)
Canberra 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 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 29 Sep : A
Fredericksburg 5
Planetary 5
Observed AFr/Ap Indices 28 Sep : A K
Fredericksburg 7
Planetary 7 1132 2221
2B. MAGNETIC FORECAST
Date Ap Conditions
30 Sep 5 Quiet
01 Oct 5 Quiet
02 Oct 5 Quiet
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
29 Sep
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
30 Sep Normal Normal Normal
01 Oct Normal Normal Normal
02 Oct Normal Normal Normal
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
29 Sep 25
Observed Australian Regional MUFs
Cocos Island Region:
Near predicted monthly values with depressions to 25%
03-07 UT. No data 09-22 UT.
Niue Island Region:
No data.
Northern Australian Region:
Near predicted monthly values. Depressions to 30% 03-08
UT observed at Darwin.
Southern Australian and New Zealand Region:
Near predicted monthly values with depressions to 25%
09-19 UT.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Near predicted monthly values with occasional
depressions to 25%.
Predicted Monthly T index for September: 28
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
30 Sep 30 Near predicted monthly values
01 Oct 30 Near predicted monthly values
02 Oct 30 Near predicted monthly values
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 28 Sep
Daily Proton Fluence >1 MeV: 3.6E+05
Daily Proton Fluence >10 MeV: 1.3E+04
Daily Electron Fluence >2 MeV: 9.80E+06 (normal fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability: 2%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: B1.2
ACE Satellite Solar Wind Day Averaged Data for 28 Sep
Speed: 525 km/sec Density: 1.1 p/cc Temp: 174000 K Bz: 2 nT
(Courtesy Space Weather Prediction 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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