[Ips-dsgr] IPS Daily Report - 12 November 02
rwc
rwc at ips.gov.au
Wed Nov 13 10:55:56 EST 2002
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 12/2330Z NOVEMBER 2002 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 12 NOVEMBER AND FORECAST FOR 13 NOVEMBER - 15 NOVEMBER
STATUS INDICATORS SOL:** YELLOW ** MAG:GREEN ION: GREEN
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1A. SOLAR SUMMARY
Activity 12 Nov: Moderate
Flares Max Fadeout Freq. Sectors
M2/1N 1856UT possible lower East Pacific/
North American
Observed 10.7 cm flux/Equivalent Sunspot Number for 12 Nov: 178/131
1B. SOLAR FORECAST
13 Nov 14 Nov 15 Nov
Activity Low to moderate Low to moderate Low to moderate
Fadeouts Possible Possible Possible
10.7cm/SSN 175/129 170/124 175/129
COMMENT: Regions 180 and 191 have the chance of producing further
M-class flare activity.
Previously M-flare(s) producing region 162 is due for return
to the north-east limb around 14 Nov.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 12 Nov: Quiet to Active
Estimated Indices 12 Nov : A K
Australian Region 15 3343 3234
Darwin - ---- ----
Townsville 12 2333 3234
Learmonth 12 2333 3233
Canberra 13 3243 3134
Hobart 15 3343 3134
Casey(Ant) 19 ---4 3244
Observed Regional daily pc3 Indices 12 NOV :
Townsville 21 (Quiet to unsettled)
Learmonth 28 (Quiet to unsettled)
Canberra 98 (Minor storm)
Hobart 133 (Severe storm)
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 12 Nov : A
Fredericksburg 12
Planetary 18
Observed AFr/Ap Indices 11 Nov : A K
Fredericksburg 10
Planetary 12 2233 4323
2B. MAGNETIC FORECAST
Date Ap Conditions
13 Nov 15 Quiet to unsettled with isolated active periods.
14 Nov 12 Quiet to unsettled with isolated active periods.
15 Nov 12 Quiet to unsettled with isolated active periods.
COMMENT: IPS Geomagnetic Warning 39 was issued on 11 November
and is current for interval 11-13 November. Anticipated geomagnetic
storm activity has not yet eventuated. It is now considered unlikely
that either of the two anticipated CMEs will impact the Earth.
Further CME activity observed on 11 and 12 November is not considered
to be earthward directed. Geomagnetic conditions should be mostly
quiet to unsettled with isolated active periods over the next
couple of days. A coronal hole solar wind stream is expected
to impact the Earth 15-16 November and produce active to minor
storm levels at times.
A weak (11nT) impulse was observed in the IPS magnetomter data
at 0253UT on 12 Nov.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
12 Nov Normal Normal Normal-fair
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
13 Nov Normal Normal Normal-Fair
14 Nov Normal Normal Normal-Fair
15 Nov Normal Normal Normal-Fair
COMMENT: Anticipated geomagnetic activity and subsequent ionospheric
depressions did not eventuate. Mostly normal to enhanced ionospheric
conditions are expected to continue for the next few days.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
12 Nov 129
Observed Australian Regional MUFs
Equatorial PNG Region:
Near predicted monthly values to enhanced.
Northern Australian Region:
Near predicted monthly values to enhanced.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base):
Near predicted monthly values to slightly depressed.
Predicted Monthly T index for November: 91
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
13 Nov 120 5 to 15% above predicted monthly values
14 Nov 130 10 to 20% above predicted monthly values
15 Nov 130 10 to 20% above predicted monthly values
COMMENT: IPS HF Communications Warning 65 was issued on 11 November
and is current for interval 11-13 November. Anticipated geomagnetic
activity and subsequent ionospheric depressions did not eventuate.
Mostly normal to enhanced ionospheric conditions are expected
to continue for the next few days.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 11 Nov
Daily Proton Fluence >1 MeV: 1.7E+07
Daily Proton Fluence >10 MeV: 4.9E+05
Daily Electron Fluence >2 MeV: 5.10E+06 (normal)
X-ray background: C1.4
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
ACE Satellite Solar Wind Day Averaged Data for 11 Nov
Speed: 550 km/sec Density: 5.4 p/cc Temp: 249000 K Bz: 6 nT
(Courtesy Space Environment Center, Boulder USA)
ACE data can be incorrect during strong proton events.
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IPS Radio and Space Services | email: asfc at ips.gov.au
PO Box 1386 | WWW: http://www.ips.gov.au
Haymarket NSW 1240 AUSTRALIA | FTP: ftp://ftp.ips.gov.au
tel: +61 2 9213 8010 | fax: +61 2 9213 8060
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