[Ips-dsgr] IPS Daily Report - 02 July 04
rwc
rwc at ips.gov.au
Sat Jul 3 09:28:15 EST 2004
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 02/2330Z JULY 2004 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 02 JULY AND FORECAST FOR 03 JULY - 05 JULY
STATUS INDICATORS SOL:GREEN MAG:GREEN ION: GREEN
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1A. SOLAR SUMMARY
Activity 02 Jul: Very low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 02 Jul: 81/22
1B. SOLAR FORECAST
03 Jul 04 Jul 05 Jul
Activity Very low Very low Low
Fadeouts None expected None expected None expected
10.7cm/SSN 80/20 80/20 80/20
COMMENT: Solar activity remained at very low levels over the
past 24 hours. Background solar X-ray flux remains low at A-levels.
There is a possibility of isolated C-class activity from region
640.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 02 Jul: Quiet to Unsettled
Estimated Indices 02 Jul : A K
Australian Region 7 1221 2322
Darwin 7 2211 2322
Townsville 6 2221 2221
Learmonth 7 1221 2321
Culgoora 5 1221 2222
Canberra 7 1221 2321
Hobart 7 1122 2322
Casey(Ant) 11 2322 3-32
Observed Regional daily pc3 Indices 02 JUL :
Townsville 4 (Quiet)
Learmonth 6 (Quiet)
Culgoora 32 (Quiet to unsettled)
Canberra 47 (Unsettled)
Hobart 45 (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 02 Jul : A
Fredericksburg 10
Planetary 10
Observed AFr/Ap Indices 01 Jul : A K
Fredericksburg 9
Planetary 13 3333 3332
2B. MAGNETIC FORECAST
Date Ap Conditions
03 Jul 8 Quiet to Unsettled
04 Jul 8 Quiet to Unsettled
05 Jul 10 Quiet to Unsettled
COMMENT: Geomagnetic conditions were predominantly quiet, with
isolated unsettled periods. Isolated active periods were observed
at high latitudes only. Solar wind speed continues the slow decline
of the past few days. The Bz component of the interplanetary
magnetic field has remained mostly slightly northward, with brief
minor southward fluctuations. Conditions should remain mostly
quiet with isolated unsettled periods for the next few days.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
02 Jul Normal Normal Normal-fair
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
03 Jul Normal Normal Normal-Fair
04 Jul Normal Normal Normal-Fair
05 Jul Normal Normal Normal-Fair
COMMENT: Mostly normal HF conditions observed, and expected for
the next three days. Isolated periods of disturbance possible
at high latitudes in association with geomagnetic activity.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
02 Jul 41
Observed Australian Regional MUFs
Equatorial PNG Region:
Mostly near predicted monthly values,
Enhanced by 25% after local dawn.
Northern Australian Region:
Near predicted monthly values.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base):
Mostly near predicted monthly values.
Predicted Monthly T index for July: 39
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
03 Jul 45 Near predicted monthly values
04 Jul 45 Near predicted monthly values
05 Jul 50 Near predicted monthly values
COMMENT: Evening spread-F observed S Aus/NZ/Antarctic regions.
Mostly normal HF conditions expected for the next few days, with
variable overnight enhancements at low to mid latitudes. Possible
evening spread-F conditions S Aus/NZ regions. Possible isolated
disturbances at high latitudes.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 01 Jul
Daily Proton Fluence >1 MeV: 5.4E+05
Daily Proton Fluence >10 MeV: 1.3E+04
Daily Electron Fluence >2 MeV: 1.10E+08 (moderate)
X-ray background: A3.9
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
ACE Satellite Solar Wind Day Averaged Data for 01 Jul
Speed: 532 km/sec Density: 1.4 p/cc Temp: 105000 K Bz: 1 nT
(Courtesy Space Environment Center, Boulder USA)
ACE data can be incorrect during strong proton events.
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