[Ips-dsgr] IPS Daily Report - 29 January 05
rwc
rwc at ips.gov.au
Sun Jan 30 10:32:52 EST 2005
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 29/2330Z JANUARY 2005 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 29 JANUARY AND FORECAST FOR 30 JANUARY - 01 FEBRUARY
STATUS INDICATORS SOL:GREEN MAG:** YELLOW ** ION: **YELLOW**
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1A. SOLAR SUMMARY
Activity 29 Jan: Very low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 29 Jan: 86/29
1B. SOLAR FORECAST
30 Jan 31 Jan 01 Feb
Activity Very low Very low Very low
Fadeouts None expected None expected None expected
10.7cm/SSN 85/27 85/27 85/27
COMMENT: Solar wind speed increased from 400 to 600km/sec over
the UT day, inassociation with a coronal hole wind stream.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 29 Jan: Quiet to Active
Estimated Indices 29 Jan : A K
Australian Region 16 2234 3343
Darwin 13 2224 3243
Learmonth 15 2224 3342
Culgoora 14 2234 3333
Canberra 14 2234 3333
Hobart 16 2334 2343
Casey(Ant) 19 4--4 3333
Observed Regional daily pc3 Indices 29 Jan :
Townsville NA
Learmonth NA
Culgoora NA
Canberra NA
Hobart 44 (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 29 Jan : A
Fredericksburg 18
Planetary 20
Observed AFr/Ap Indices 28 Jan : A K
Fredericksburg 5
Planetary 6 2210 1132
2B. MAGNETIC FORECAST
Date Ap Conditions
30 Jan 22 active
31 Jan 21 active
01 Feb 22 active
COMMENT: IPS Geomagnetic Warning 6 was issued on 26 January and
is current for interval 29-30 January. Active conditions with
possible minor storm periods expected next few days.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
29 Jan Normal Normal-Fair Fair
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
30 Jan Normal Normal-Fair Fair
31 Jan Normal Normal-Fair Fair
01 Feb Normal Normal-Fair Fair
COMMENT: Degraded HF conditions expected during the forecast
period, particularly during local night hours, at mid to high
latitudes.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
29 Jan 50
Observed Australian Regional MUFs
Equatorial PNG Region:
No data available during local day,
Near predicted monthly values during local night.
Northern Australian Region:
Near predicted monthly values.
Southern Australian and New Zealand Region:
Near predicted monthly values during local day,
Enhanced by 15% during local night.
Depressed by 20% after local dawn.
Antarctic Region (Casey/Scott Base):
Near predicted monthly values over the UT day.
Predicted Monthly T index for January: 32
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
30 Jan 25 Depressed 15% after local dawn, then recovering
31 Jan 25 Depressed 15% after local dawn, then recovering
01 Feb 25 Depressed 15% after local dawn, then recovering
COMMENT: Lower than normal MUFs expected after local dawn next
few days for southern Aus/NZ region.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 28 Jan
Daily Proton Fluence >1 MeV: 3.6E+06
Daily Proton Fluence >10 MeV: 3.8E+04
Daily Electron Fluence >2 MeV: 5.90E+07 (normal fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability: 8%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: A4.7
ACE Satellite Solar Wind Day Averaged Data for 28 Jan
Speed: 393 km/sec Density: 2.9 p/cc Temp: 107000 K Bz: 2 nT
(Courtesy Space Environment Center, Boulder USA)
ACE data can be incorrect during strong proton events.
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