[Ips-dsgr] IPS Daily Report - 29 June 05
rwc
rwc at ips.gov.au
Thu Jun 30 09:42:13 EST 2005
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 29/2330Z JUNE 2005 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 29 JUNE AND FORECAST FOR 30 JUNE - 02 JULY
STATUS INDICATORS SOL:GREEN MAG:** RED ** ION: GREEN
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1A. SOLAR SUMMARY
Activity 29 Jun: Very low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 29 Jun: 88/32
1B. SOLAR FORECAST
30 Jun 01 Jul 02 Jul
Activity Very low Very low Low
Fadeouts None expected None expected None expected
10.7cm/SSN 95/41 95/41 100/48
COMMENT: Solar activity was very low today with no notable flare
activity. The solar wind speed ranged between 420km/s and 380km/s.
The north-south component of the interplanetary magnetic field
(Bz) fluctuated between +/-5nT over the entire UT day. A coronal
hole extending from the northern hemisphere to the equator is expected
to strengthen the solar wind stream from 01 July as it moves
into geoeffective position. Solar activity is expected to remain
very low to low levels during the next three days.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 29 Jun: Quiet
Estimated Indices 29 Jun : A K
Australian Region 3 2121 1101
Learmonth 3 2121 1101
Culgoora - ---- ----
Canberra 2 1111 1100
Hobart 3 1111 1200
Casey(Ant) 5 2222 2111
Observed Regional daily pc3 Indices 29 Jun :
Townsville NA
Learmonth NA
Culgoora NA
Canberra NA
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 29 Jun : A
Fredericksburg 5
Planetary 6
Observed AFr/Ap Indices 28 Jun : A K
Fredericksburg 3
Planetary 5 1111 2222
2B. MAGNETIC FORECAST
Date Ap Conditions
30 Jun 7 Quiet
01 Jul 12 Unsettled
02 Jul 20 active
COMMENT: Quiet conditions are expected over the next 24 hours.
Between 01July-03July the effects of a recurrent high speed coronal
hole wind stream may raise the geomagnetic activity to Unsettled
to Active levels with isolated Minor Storm periods.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
29 Jun Normal Normal Normal
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
30 Jun Normal Normal Normal
01 Jul Normal Normal Normal-Fair
02 Jul Normal Normal-Fair Fair
COMMENT: HF conditions may show some degradations at high latitude
locations between 01July-03July due to expected elevated geomagnetic
activity.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
29 Jun 34
Observed Australian Regional MUFs
Equatorial PNG 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):
Enhanced by 15% over the UT day.
Predicted Monthly T index for June: 26
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
30 Jun 35 near predicted monthly values
01 Jul 35 near predicted monthly values
02 Jul 35 near predicted monthly values
COMMENT: HF conditions are expected to remain mostly normal in
most Aus/NZ regions during the next two days. Possible minor
to mild degradations in Southern Aus/NZ regions on 01July, and
more so on 02July-03July, due to an expected increase in geomagnetic
activity from a coronal hole.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 28 Jun
Daily Proton Fluence >1 MeV: 1.8E+06
Daily Proton Fluence >10 MeV: 1.4E+04
Daily Electron Fluence >2 MeV: 2.30E+08 (moderate fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability:16%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: A5.7
ACE Satellite Solar Wind Day Averaged Data for 28 Jun
Speed: 387 km/sec Density: 4.0 p/cc Temp: 68000 K Bz: 0 nT
(Courtesy Space Environment Center, Boulder USA)
ACE data can be incorrect during strong proton events.
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