[Ips-dsgr] IPS Daily Report - 22 October 04
rwc
rwc at ips.gov.au
Sat Oct 23 09:51:04 EST 2004
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 22/2330Z OCTOBER 2004 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 22 OCTOBER AND FORECAST FOR 23 OCTOBER - 25 OCTOBER
STATUS INDICATORS SOL:** YELLOW ** MAG:GREEN ION: GREEN
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1A. SOLAR SUMMARY
Activity 22 Oct: Moderate
Flares Max Fadeout Freq. Sectors
M2/1N 0811UT possible lower Mid East/Indian
Observed 10.7 cm flux/Equivalent Sunspot Number for 22 Oct: 123/76
1B. SOLAR FORECAST
23 Oct 24 Oct 25 Oct
Activity Low to moderate Low to moderate Low to moderate
Fadeouts Possible Possible Possible
10.7cm/SSN 125/78 130/84 125/78
COMMENT: The CME observed in association with the M2-flare from
region 687 on 22 October 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 remained around 400km/s and are expected to
decline further over the next few days as coronal holes rotate
out of geoeffective positions.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 22 Oct: Quiet
Estimated Indices 22 Oct : A K
Australian Region 4 2211 2112
Darwin 4 2211 1212
Townsville 4 2211 2113
Learmonth 4 2201 2213
Culgoora 4 2201 2113
Canberra 4 1211 2112
Hobart 4 1211 2112
Casey(Ant) 11 -4-2 2221
Observed Regional daily pc3 Indices 22 OCT :
Townsville 0 (Quiet)
Learmonth 2 (Quiet)
Culgoora NA
Canberra 39 (Quiet to unsettled)
Hobart 39 (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 22 Oct : A
Fredericksburg 4
Planetary 5
Observed AFr/Ap Indices 21 Oct : A K
Fredericksburg 5
Planetary 8 2331 2221
2B. MAGNETIC FORECAST
Date Ap Conditions
23 Oct 8 Quiet to Unsettled
24 Oct 8 Quiet to Unsettled
25 Oct 8 Quiet to Unsettled
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
22 Oct Normal Normal Normal
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
23 Oct Normal Normal Normal
24 Oct Normal Normal Normal
25 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
22 Oct 70
Observed Australian Regional MUFs
Equatorial PNG Region:
Near predicted monthly values during local day,
Enhanced by 25% during local night.
Enhanced by 20% after local dawn.
Northern Australian Region:
Enhanced by 15% during local day,
Enhanced by 30% during local night.
Enhanced by 40% after local dawn.
Southern Australian and New Zealand Region:
Enhanced by 20% during local day,
Enhanced by 30% during local night.
Enhanced by 35% after local dawn.
Antarctic Region (Casey/Scott Base):
Enhanced by 30% over the UT day.
Predicted Monthly T index for October: 30
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
23 Oct 55 5 to 15% above predicted monthly values
24 Oct 55 5 to 15% above predicted monthly values
25 Oct 55 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 21 Oct
Daily Proton Fluence >1 MeV: 1.3E+05
Daily Proton Fluence >10 MeV: 1.5E+04
Daily Electron Fluence >2 MeV: 1.60E+06 (normal fluence)
Electron Fluence Daily Deep Dielectric Discharge Probability: 0%
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
X-ray background: B2.2
ACE Satellite Solar Wind Day Averaged Data for 21 Oct
Speed: 423 km/sec Density: 4.8 p/cc Temp: 103000 K Bz: 1 nT
(Courtesy Space Environment Center, Boulder USA)
ACE data can be incorrect during strong proton events.
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