[Ips-dsgr] IPS Daily Report - 14 July 03
rwc
rwc at ips.gov.au
Tue Jul 15 09:32:14 EST 2003
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 14/2330Z JULY 2003 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 14 JULY AND FORECAST FOR 15 JULY - 17 JULY
STATUS INDICATORS SOL:*YELLOW* MAG:*YELLOW* ION:GREEN
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1A. SOLAR SUMMARY
Activity 14 Jul: Low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 14 Jul: 127/80
1B. SOLAR FORECAST
15 Jul 16 Jul 17 Jul
Activity Low to moderate Low to moderate Low to moderate
Fadeouts Possible Possible Possible
10.7cm/SSN 130/84 130/84 125/78
COMMENT: Region 409 is capable of producing M-class flare activity.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 14 Jul: Quiet to Unsettled
Estimated Indices 14 Jul : A K
Australian Region 10 2232 2333
Darwin 8 2222 2233
Townsville 9 2232 2234
Learmonth 10 2232 2332
Canberra 9 1232 2333
Hobart 9 1232 1333
Casey(Ant) 12 3232 33-2
Observed Regional daily pc3 Indices 14 JUL :
Townsville 0 (Quiet)
Learmonth 6 (Quiet)
Canberra 42 (Unsettled)
Hobart 31 (Quiet to unsettled)
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 14 Jul : A
Fredericksburg 18
Planetary 18
Observed AFr/Ap Indices 13 Jul : A K
Fredericksburg 9
Planetary 14 3343 3323
2B. MAGNETIC FORECAST
Date Ap Conditions
15 Jul 20 Unsettled with active and possible minor storm
periods.
16 Jul 20 Unsettled with active and possible minor storm
periods.
17 Jul 16 Unsettled to active
COMMENT: A coronal hole solar wind stream is expected to impact
the Earth during 15 July and result in mildly elevated geomagnetic
activity levels, with isolated minor storm levels possible.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
14 Jul Normal Normal Normal-fair
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
15 Jul Normal Normal-fair Normal-fair
16 Jul Normal Normal-fair Normal-fair
17 Jul Normal Normal-fair Normal-fair
COMMENT: Slight depressions may be observed at mid-high latitudes
at times for 15-16 July due to anticipated mildly elevated geomagnetic
activity levels.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
14 Jul 86
Observed Australian Regional MUFs
Equatorial PNG Region:
Enhanced by 15% during local day,
Enhanced by 50% during local night.
Enhanced by 30% after local dawn.
Northern Australian Region:
Enhanced by 15% during local day,
Enhanced by 25% during local night.
Southern Australian and New Zealand Region:
Enhanced by 35% during local day,
depressed up to 15% at times during local night,
otherwise near predicted monthly values.
Antarctic Region (Casey/Scott Base):
Mostly near predicted monthly values.
Predicted Monthly T index for July: 63
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
15 Jul 70 Depressed 5-15% at times otherwise near predicted
monthly values.
16 Jul 70 Depressed 5-15% at times otherwise near predicted
monthly values.
17 Jul 75 Near predicted monthly values
COMMENT: Slight depressions may be observed for southern regions
at times for 15-16 July due to anticipated mildly elevated geomagnetic
activity levels.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 13 Jul
Daily Proton Fluence >1 MeV: 7.9E+05
Daily Proton Fluence >10 MeV: 1.1E+04
Daily Electron Fluence >2 MeV: 1.20E+08 (moderate)
X-ray background: B3.8
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
ACE Satellite Solar Wind Day Averaged Data for 13 Jul
Speed: 568 km/sec Density: 2.0 p/cc Temp: 169000 K Bz: 2 nT
(Courtesy Space Environment Center, Boulder USA)
ACE data can be incorrect during strong proton events.
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