[Ips-dsgr] IPS Daily Report - 24 January 01
rwc
rwc at ips.gov.au
Thu Jan 25 10:37:13 EST 2001
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 24/2330Z JANUARY 2001 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 24 JANUARY AND FORECAST FOR 25 JANUARY - 27 JANUARY
STATUS INDICATORS SOL:** YELLOW ** MAG:GREEN ION: GREEN
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1A. SOLAR SUMMARY
Activity 24 Jan: Moderate
Flares Max Fadeout Freq. Sectors
M1/2F 1447UT possible lower South American/
Atlantic
Observed 10.7 cm flux/Equivalent Sunspot Number for 24 Jan:NA
GOES satellite data for 23 Jan
Daily Proton Fluence >1 MeV: 1.2E+07
Daily Proton Fluence >10 MeV: 1.1E+05
Daily Electron Fluence >2 MeV: 2.90E+06 (normal)
X-ray background: B5.6
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
1B. SOLAR FORECAST
25 Jan 26 Jan 27 Jan
Activity Low to moderate Low to moderate Low to moderate
Fadeouts Possible Possible Possible
10.7cm/SSN 175/129 170/124 165/119
COMMENT: The north-south component of the interplanetary magnetic
field was southward 10-18UT. Solar wind speed and density mildly
elevated.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 24 Jan: Quiet to Active
Estimated Indices 24 Jan : A K
Australian Region 15 3214 3434
Darwin 13 3213 3434
Townsville 17 3214 4434
Learmonth 17 3214 3444
Canberra 18 3314 4434
Hobart 18 3314 3443
Observed Regional daily pc3 Indices 24 JAN :
Darwin 22 (Quiet to unsettled)
Townsville 0 (Quiet)
Learmonth 2 (Quiet)
Canberra 61 (Active)
Hobart 59 (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 24 Jan : A
Fredericksburg 18
Planetary 20
Observed AFr/Ap Indices 23 Jan : A K
Fredericksburg 7
Planetary 11 1103 3343
2B. MAGNETIC FORECAST
Date Ap Conditions
25 Jan 10 Quiet to Unsettled
26 Jan 7 Quiet
27 Jan 2 Quiet
COMMENT: Geomagnetic activity expected to continue to decline
following recent CME related activity.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
24 Jan Normal Fair-normal Fair
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
25 Jan Normal Normal Normal-Fair
26 Jan Normal Normal Normal
27 Jan Normal Normal Normal
COMMENT: Improved HF conditions expected for today.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
24 Jan 108
Observed Australian Regional MUFs
Equatorial PNG Region:
Mostly near predicted monthly values,
Northern Australian Region:
Mostly near predicted monthly values,
Southern Australian and New Zealand Region:
Mostly near predicted monthly values,
Antarctic Region (Casey/Scott Base):
Near predicted monthly values over the UT day.
Some absorption and spread F observed.
Predicted Monthly T index for January: 117
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
25 Jan 120 near predicted monthly values
26 Jan 130 near predicted monthly values
27 Jan 130 near predicted monthly values
IPS Radio and Space Services | email: asfc at ips.gov.au
PO Box 1386 | WWW: http://www.ips.gov.au/asfc
Haymarket NSW 1240 AUSTRALIA | FTP: ftp://ftp.ips.gov.au/users/asfc/
tel: +61 2 9213 8010 | fax: +61 2 9213 8060
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