[Ips-dsgr] IPS Daily Report - 30 June 06
rwc
rwc at ips.gov.au
Sat Jul 1 09:14:58 EST 2006
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 30/2330Z JUNE 2006 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 30 JUNE AND FORECAST FOR 01 JULY - 03 JULY
STATUS INDICATORS SOL:GREEN MAG:GREEN ION: GREEN
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1A. SOLAR SUMMARY
Activity 30 Jun: Very low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 30 Jun: 86/29
1B. SOLAR FORECAST
01 Jul 02 Jul 03 Jul
Activity Very low Very low Very low
Fadeouts None expected None expected None expected
10.7cm/SSN 85/27 85/27 85/27
COMMENT: Solar activity should remain at low levels next three
days. Solar wind speed declined slowly over the UT day as the
currently geoeffective coronal hole rotates towards the west
limb.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 30 Jun: Quiet to Unsettled
Estimated Indices 30 Jun : A K
Australian Region 7 22223211
Darwin 6 22213211
Learmonth 6 21223220
Culgoora 6 22223111
Camden 9 32213223
Canberra 7 22224110
Hobart 7 21224111
Casey(Ant) 12 33323--2
Observed Regional daily pc3 Indices 30 Jun :
Canberra 14 (Quiet)
Learmonth 0 (Quiet)
Culgoora 11 (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 30 Jun : A
Fredericksburg 10
Planetary 10
Observed AFr/Ap Indices 29 Jun : A K
Fredericksburg 8
Planetary 12 3233 2333
2B. MAGNETIC FORECAST
Date Ap Conditions
01 Jul 5 Quiet
02 Jul 5 Quiet
03 Jul 15 Unsettled to Active
COMMENT: Solar wind speed is in slow decline. Active to minor
storm conditions were observed at high latitudes for the first
few hours of the UT day. A sustained period of mildly southward
Bz during the mid part of the UT day resulted an interval of
unsettled conditions at mid latitudes. Otherwise geomagnetic
conditions were generally quiet. Expect continuing quiet conditions
days one and two. Chance of active periods day three due to a
recurrent coronal hole wind stream.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
30 Jun Normal-fair Normal Normal
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
01 Jul Normal Normal Normal
02 Jul Normal Normal Normal
03 Jul Normal Normal Normal-Fair
COMMENT: Expect mostly normal HF conditions for the next three
days. Possible periods of disturbance at high latitudes day three.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
30 Jun 18
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.
Antarctic Region (Casey/Scott Base/Davis/Mawson):
Enhanced by up to 35% over the UT day.
Predicted Monthly T index for June: 15
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
01 Jul 20 Near predicted monthly values
02 Jul 20 Near predicted monthly values
03 Jul 25 Near predicted monthly values
COMMENT: Evening and night time spread-F observed S Aus/NZ/Antarctic
regions. Mild daytime/evening depressions observed Equatorial/N
Aus regions. HF conditions are expected to remain normal in the
Aus/NZ regions for the next three days. Possible disturbances
Antarctic region day three.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 29 Jun
Daily Proton Fluence >1 MeV: 6.1E+05
Daily Proton Fluence >10 MeV: 1.6E+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: A7.8
ACE Satellite Solar Wind Day Averaged Data for 29 Jun
Speed: 556 km/sec Density: 2.2 p/cc Temp: 197000 K Bz: 1 nT
(Courtesy Space Environment Center, Boulder USA)
ACE data can be incorrect during strong proton events.
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