[Ips-dsgr] IPS Daily Report - 28 July 08
rwc
rwc at ips.gov.au
Tue Jul 29 09:27:25 EST 2008
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 28/2330Z JULY 2008 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 28 JULY AND FORECAST FOR 29 JULY - 31 JULY
STATUS INDICATORS SOL:GREEN MAG:GREEN ION: GREEN
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1A. SOLAR SUMMARY
Activity 28 Jul: Very low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 28 Jul: 66/0
1B. SOLAR FORECAST
29 Jul 30 Jul 31 Jul
Activity Very low Very low Very low
Fadeouts None expected None expected None expected
10.7cm/SSN 66/0 66/0 66/0
COMMENT: Very low solar activity over the last 24 hours. Solar
activity is expected to remain at very low levels for the next
3 days.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 28 Jul: Quiet
Estimated Indices 28 Jul : A K
Australian Region 5 22221111
Darwin 5 22121112
Townsville 8 23222222
Learmonth 4 22221100
Camden 4 12221110
Canberra 5 22231100
Hobart 5 22231110
Casey(Ant) 7 23321211
Observed Regional daily pc3 Indices 28 Jul :
Darwin 0 (Quiet)
Townsville 0 (Quiet)
Learmonth 0 (Quiet)
Alice_Springs 0 (Quiet)
Culgoora 0 (Quiet)
Camden 0 (Quiet)
Gnangara 8 (Quiet)
Canberra 2 (Quiet)
Hobart 8 (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 28 Jul : A
Fredericksburg 5
Planetary 8
Observed AFr/Ap Indices 27 Jul : A K
Fredericksburg 4
Planetary 7 0002 1224
2B. MAGNETIC FORECAST
Date Ap Conditions
29 Jul 4 Quiet
30 Jul 5 Quiet
31 Jul 6 Quiet
COMMENT: Quiet geomagnetic conditions observed over the last
24 hours. Mostly quiet conditions are expected for the next 3
days.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
28 Jul Normal Normal Normal
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
29 Jul Normal Normal Normal
30 Jul Normal Normal Normal
31 Jul Normal Normal Normal
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
28 Jul 8
Observed Australian Regional MUFs
Equatorial PNG/Niue Region:
Near predicted monthly values.
Northern Australian Region:
Near predicted monthly values.
Southern Australian and New Zealand Region:
Near predicted monthly values during local day,
Enhanced by 40% during local night.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Enhanced by 40% over the UT day.
Predicted Monthly T index for July: 4
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
29 Jul 5 near predicted monthly values
30 Jul 5 near predicted monthly values
31 Jul 5 Near predicted monthly values
COMMENT: Mostly normal HF conditions observed over the last 24
hours. Depressed periods during local day for Northern AUS/Equatorial
regions. Normal conditions for Southern AUS/NZ regions with continued
enhancements during local night. Expect similar conditions for
the next 3 days.
-----------------------------------------------------------
5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 27 Jul
Daily Proton Fluence >1 MeV: 2.1E+06
Daily Proton Fluence >10 MeV: 1.7E+04
Daily Electron Fluence >2 MeV: 2.50E+08 (moderate fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability:17%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: A1.0
ACE Satellite Solar Wind Day Averaged Data for 27 Jul
Speed: 378 km/sec Density: 4.9 p/cc Temp: 70300 K Bz: -1 nT
(Courtesy Space Environment Center, Boulder USA)
ACE data can be incorrect during strong proton events.
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