[Ips-dsgr] IPS Daily Report - 03 November 00
Regional Warning Centre
rwc at ips.gov.au
Sat Nov 4 10:11:53 EST 2000
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 03/2330Z NOVEMBER 2000 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 03 NOVEMBER AND FORECAST FOR 04 NOVEMBER - 06 NOVEMBER
STATUS INDICATORS SOL: GREEN MAG: YELLOW ION: YELLOW
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1A. SOLAR SUMMARY
Activity 03 Nov: Low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 03 Nov: 199/151
GOES satellite data for 02 Nov
Daily Proton Fluence >1 MeV: 3.0E+06
Daily Proton Fluence >10 MeV: 3.9E+04
Daily Electron Fluence >2 MeV: 3.70E+06 (normal)
X-ray background: B8.4
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
1B. SOLAR FORECAST
04 Nov 05 Nov 06 Nov
Activity Low to moderate Low to moderate Low to moderate
Fadeouts Possible Possible Possible
10.7cm/SSN 200/152 195/147 190/143
COMMENT: Growth rate in solar regions located in north east quadrant
has slowed.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 03 Nov: Quiet
Estimated Indices 03 Nov : A K
Australian Region 2 1000 2111
Darwin 3 1201 1111
Townsville 2 1000 2122
Learmonth 2 1000 2122
Canberra 2 1000 2111
Hobart 2 1000 2110
Observed Regional daily pc3 Indices 03 NOV :
Darwin 2 (Quiet)
Townsville 0 (Quiet)
Learmonth 0 (Quiet)
Canberra 26 (Quiet to unsettled)
Hobart 18 (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 03 Nov : A
Fredericksburg 5
Planetary 5
Observed AFr/Ap Indices 02 Nov : A K
Fredericksburg 1
Planetary 4 2101 1221
2B. MAGNETIC FORECAST
Date Ap Conditions
04 Nov 16 usttled to active, with the chance of minor storm
periods.
05 Nov 20 Active, with the chance of minor storm periods.
06 Nov 12 Unsettled
COMMENT: IPS Geomagnetic Warning 47 was issued on 2 November
and is current for interval 4-5 November. Increased activity
expected second half of UT day 04 Nov, due to recent coronal
mass ejection events. Shock arrival window estimate is from around
10UT on 04 Nov to 15UT on 05 Nov. Shock(s) are expected to be
weak. Recurrence also suggests very mild increase in geomagnetic
activity 06 Nov.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
03 Nov Normal Normal Normal
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
04 Nov Normal Normal-Fair Fair
05 Nov Normal Normal-Fair Fair
06 Nov Normal Normal Normal-Fair
COMMENT: High latitude HF communication should be initially normal
for today becoming degraded late in UT day due to anticipated
arrival of recent coronal mass ejections.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
03 Nov 177
Observed Australian Regional MUFs
Equatorial PNG Region:
Mostly near predicted monthly values,
Northern Australian Region:
Near predicted monthly values during local day,
Enhanced by 15% during local night.
Enhanced by 15% after local dawn.
Southern Australian and New Zealand Region:
Near predicted monthly values during local day,
Enhanced by 15% during local night.
Antarctic Region (Casey/Scott Base):
Enhanced by 20% over the UT day.
Predicted Monthly T index for November: 133
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
04 Nov 160 10 to 15% above predicted monthly values
05 Nov 130 depressed 10 to 15%/near predicted monthly values
06 Nov 130 depressed 10 to 15%/near predicted monthly values
COMMENT: Good HF conditions initially expected for today. Mildly
disturbed conditions are expected for late 4-5 Nov due to recent
solar mass ejections. Effects should be confined to southern
Aus/NZ region.
IPS Radio and Space Services | email: asfc at ips.gov.au
PO Box 1386 | WWW: http://www.ips.gov.au/asfc
Haymarket NSW 1240 AUSTRALIA | FTP: ftp://ftp.ips.gov.au/users/asfc/
tel: +61 2 9213 8010 | fax: +61 2 9213 8060
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