[Ips-dsgr] IPS Daily Report - 23 October 04
rwc
rwc at ips.gov.au
Sun Oct 24 10:13:27 EST 2004
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 23/2330Z OCTOBER 2004 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 23 OCTOBER AND FORECAST FOR 24 OCTOBER - 26 OCTOBER
STATUS INDICATORS SOL:** YELLOW ** MAG:GREEN ION: GREEN
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1A. SOLAR SUMMARY
Activity 23 Oct: Low
Flares: None
Observed 10.7 cm flux/Equivalent Sunspot Number for 23 Oct: 130/NA
1B. SOLAR FORECAST
24 Oct 25 Oct 26 Oct
Activity Low to moderate Low to moderate Low to moderate
Fadeouts Possible Possible Possible
10.7cm/SSN 130/NA 130/NA 130/NA
COMMENT: Recent CME activity appearing to originate from solar
rgion 687 does not appear to be Earthward directed and is not
expected to be geoeffective. Solar region 687 has the chance
of producing further M-class flare activity. Solar wind speeds
have been between 340 km/s to 400km/s during 23 October and are
expected to mostly remain below 400km/s over the next few days.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 23 Oct: Quiet
Estimated Indices 23 Oct : A K
Australian Region 2 1101 1112
Darwin 2 1111 0112
Townsville 2 1101 1113
Learmonth 1 1101 0102
Culgoora 2 1101 1112
Canberra 3 2101 1112
Hobart 2 0111 1112
Casey(Ant) 6 3--2 1112
Observed Regional daily pc3 Indices 23 OCT :
Townsville 0 (Quiet)
Learmonth 0 (Quiet)
Culgoora NA
Canberra 2 (Quiet)
Hobart 25 (Quiet to 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 23 Oct : A
Fredericksburg 4
Planetary 5
Observed AFr/Ap Indices 22 Oct : A K
Fredericksburg 5
Planetary 6 NA
2B. MAGNETIC FORECAST
Date Ap Conditions
24 Oct 6 Quiet
25 Oct 6 Quiet
26 Oct 6 Quiet
COMMENT: Mostly quiet to unsettled conditions are expected for
the next days. CMEs observed over the last few days are not expected
to be geoeffective.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
23 Oct Normal Normal Normal
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
24 Oct Normal Normal Normal
25 Oct Normal Normal Normal
26 Oct Normal Normal Normal
COMMENT: Mostly normal too good HF conditions are expected for
the next few days.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
23 Oct 79
Observed Australian Regional MUFs
Equatorial PNG Region:
Enhanced by 20% during local day,
Enhanced by 40% during local night.
Northern Australian Region:
Enhanced by 20% during local day,
Enhanced by 35% during local night.
Enhanced by 35% after local dawn.
Southern Australian and New Zealand Region:
Enhanced by 20% during local day,
Enhanced by 30% during local night.
Enhanced by 20% after local dawn.
Antarctic Region (Casey/Scott Base):
Enhanced by 40% over the UT day.
Predicted Monthly T index for October: 30
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
24 Oct 65 5 to 15% above predicted monthly values
25 Oct 65 5 to 15% above predicted monthly values
26 Oct 65 5 to 15% above predicted monthly values
COMMENT: Mostly normal to good HF conditions are expected for
the next few days.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 22 Oct
Daily Proton Fluence >1 MeV: NA
Daily Proton Fluence >10 MeV: NA
Daily Electron Fluence >2 MeV: NA
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: NA
ACE Satellite Solar Wind Day Averaged Data for 22 Oct
Speed: 402 km/sec Density: 6.0 p/cc Temp: 63100 K Bz: 1 nT
(Courtesy Space Environment Center, Boulder USA)
ACE data can be incorrect during strong proton events.
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