[Ips-dsgr] IPS Daily Report - 22 November 04
rwc
rwc at ips.gov.au
Tue Nov 23 10:57:50 EST 2004
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 22/2355Z NOVEMBER 2004 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 22 NOVEMBER AND FORECAST FOR 23 NOVEMBER - 25 NOVEMBER
STATUS INDICATORS SOL:GREEN MAG:GREEN ION: GREEN
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1A. SOLAR SUMMARY
Activity 22 Nov: Low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 22 Nov: 106/55
1B. SOLAR FORECAST
23 Nov 24 Nov 25 Nov
Activity Very low Very low Very low
Fadeouts None expected None expected None expected
10.7cm/SSN 110/60 115/66 115/66
COMMENT: Solar activity was low over the past 24 hours. Solar
wind speed continued to gradually decline, finishing the day
at around 500km/s. The north south component of the interplanetary
magnetic field remained near neutral throughout the day. A coronal
hole is transiting solar central meridian, and the Earth is expected
to enter the wind stream from this coronal hole on 26 Nov.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 22 Nov: Quiet to Unsettled
Estimated Indices 22 Nov : A K
Australian Region 7 2232 1122
Darwin 5 2222 1122
Townsville 7 1233 1122
Learmonth 5 2222 1122
Culgoora 4 1222 1112
Canberra 5 1232 1112
Hobart 7 2233 1111
Casey(Ant) 12 34-3 2122
Observed Regional daily pc3 Indices 22 NOV :
Townsville 5 (Quiet)
Learmonth 16 (Quiet)
Culgoora 48 (Unsettled)
Canberra 87 (Minor storm)
Hobart 91 (Minor 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 22 Nov : A
Fredericksburg 8
Planetary 11
Observed AFr/Ap Indices 21 Nov : A K
Fredericksburg 9
Planetary 16 2135 4322
2B. MAGNETIC FORECAST
Date Ap Conditions
23 Nov 8 Quiet to Unsettled
24 Nov 8 Quiet to Unsettled
25 Nov 8 Quiet to Unsettled
COMMENT: The field is expected to remain at quiet to unsettled
levels over the next three days, prior to an increase to unsettled
to active levels on 26 Nov in association with the coronal hole
currently transiting solar central meridian.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
22 Nov Normal Normal Normal-fair
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
23 Nov Normal Normal Normal-Fair
24 Nov Normal Normal Normal-Fair
25 Nov Normal Normal Normal-Fair
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
22 Nov 59
Observed Australian Regional MUFs
Equatorial PNG Region:
Enhanced by 20% during local day,
Enhanced by 15% during local night.
Northern Australian Region:
Near predicted monthly values during local day,
Enhanced by 15% during local night.
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 November: 35
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
23 Nov 50 15-20% enhanced equatorial and nothern Australian
region, otherwise near predicted monthly values.
24 Nov 50 15-20% enhanced equatorial and nothern Australian
region, otherwise near predicted monthly values.
25 Nov 50 15-20% enhanced equatorial and nothern Australian
region, otherwise near predicted monthly values.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 21 Nov
Daily Proton Fluence >1 MeV: 3.4E+06
Daily Proton Fluence >10 MeV: 1.5E+04
Daily Electron Fluence >2 MeV: 3.40E+07 (normal fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability: 5%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: B1.4
ACE Satellite Solar Wind Day Averaged Data for 21 Nov
Speed: 603 km/sec Density: 1.1 p/cc Temp: 157000 K Bz: 1 nT
(Courtesy Space Environment Center, Boulder USA)
ACE data can be incorrect during strong proton events.
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