[Ips-dsgr] IPS Daily Report - 14 May 04
rwc
rwc at ips.gov.au
Sat May 15 09:45:00 EST 2004
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 14/2330Z MAY 2004 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 14 MAY AND FORECAST FOR 15 MAY - 17 MAY
STATUS INDICATORS SOL:GREEN MAG:GREEN ION: GREEN
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1A. SOLAR SUMMARY
Activity 14 May: Very low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 14 May: 110/60
1B. SOLAR FORECAST
15 May 16 May 17 May
Activity Low Low Low
Fadeouts None expected None expected None expected
10.7cm/SSN 112/63 115/66 115/66
COMMENT: Solar activity was low over the past 24 hours. Only
a few B class flares from region 609, the largest being a B7
at 0730UT and a B5 at 2100UT. Region 609 grew slightly over the
past 24 hours and is expected to be the source of further C-class
and possible M-class flares. The solar wind speed declined from
440km/s at 0000UT to 350km/s at the end of the UT day. The interplanetary
magnetic field, Bz was north for most of the UT day untill 1945UT
where it went southward at a maximum of -8nT and has remained
at this level up to the time of this report.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 14 May: Quiet
Estimated Indices 14 May : A K
Australian Region 2 1110 1111
Darwin 3 1211 1112
Townsville 3 2120 1112
Learmonth 2 1110 1012
Culgoora 2 1110 1011
Canberra 1 1110 1001
Hobart 2 1110 2101
Casey(Ant) 6 3230 1111
Observed Regional daily pc3 Indices 14 MAY :
Townsville 10 (Quiet)
Learmonth 2 (Quiet)
Culgoora 0 (Quiet)
Canberra 4 (Quiet)
Hobart 0 (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 14 May : A
Fredericksburg 10
Planetary 10
Observed AFr/Ap Indices 13 May : A K
Fredericksburg 17
Planetary 13 2343 3333
2B. MAGNETIC FORECAST
Date Ap Conditions
15 May 9 Quiet to Unsettled
16 May 9 Quiet to Unsettled
17 May 8 Quiet to Unsettled
COMMENT: Quiet conditions were observed over the last 24 hours.
Quiet to Unsettled conditions expected to continue for for the
next few days, with possible isolated Active periods.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
14 May Normal Normal Normal
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
15 May Normal Normal Normal-Fair
16 May Normal Normal Normal-Fair
17 May Normal Normal Normal-Fair
COMMENT: Normal HF conditions are expected for the next 24 hrs.
Possible minor degradations in HF conditions could occur at high
latitudes for the next few days.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
14 May 55
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.
Southern Australian and New Zealand Region:
Near predicted monthly values.
Antarctic Region (Casey/Scott Base):
Near predicted monthly values over the UT day.
Predicted Monthly T index for May: 43
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
15 May 55 near predicted monthly values
16 May 55 near predicted monthly values
17 May 55 near predicted monthly values
COMMENT: HF conditions are expected to remain normal for the
next few days.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 13 May
Daily Proton Fluence >1 MeV: 2.5E+05
Daily Proton Fluence >10 MeV: 1.3E+04
Daily Electron Fluence >2 MeV: 3.30E+06 (normal)
X-ray background: B1.4
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
ACE Satellite Solar Wind Day Averaged Data for 13 May
Speed: 414 km/sec Density: 5.9 p/cc Temp: 71100 K Bz: 0 nT
(Courtesy Space Environment Center, Boulder USA)
ACE data can be incorrect during strong proton events.
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