[Ips-dsgr] IPS Daily Report - 16 September 02
rwc
rwc at ips.gov.au
Tue Sep 17 09:33:11 EST 2002
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 16/2330Z SEPTEMBER 2002 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 16 SEPTEMBER AND FORECAST FOR 17 SEPTEMBER - 19 SEPTEMBER
STATUS INDICATORS SOL:** YELLOW ** MAG:GREEN ION: GREEN
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1A. SOLAR SUMMARY
Activity 16 Sep: Moderate
Flares Max Fadeout Freq. Sectors
M1/SN 0310UT possible lower E. Asia/Aust.
Observed 10.7 cm flux/Equivalent Sunspot Number for 16 Sep: 183/136
1B. SOLAR FORECAST
17 Sep 18 Sep 19 Sep
Activity Low to moderate Low to moderate Low to moderate
Fadeouts Possible Possible Possible
10.7cm/SSN 180/133 180/133 175/129
COMMENT: A disappearing filament was observed on the north-east
limb late in the UT day yesterday. The mass ejection appeared
to be narrow and non earth-directed. A weak type II radio sweep
was observed on the Culgoora spectrograph, in asssociation with
the M1 event. No significant mass ejection could be discerned
from LASCO imagery.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 16 Sep: Quiet to Unsettled
Estimated Indices 16 Sep : A K
Australian Region 6 2122 3112
Townsville 5 1122 3113
Learmonth 6 2112 3122
Canberra 5 1112 3111
Hobart 5 1112 3111
Casey(Ant) 10 3333 2102
Observed Regional daily pc3 Indices 16 SEP :
Townsville 0 (Quiet)
Learmonth NA
Canberra 8 (Quiet)
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 16 Sep : A
Fredericksburg 6
Planetary 8
Observed AFr/Ap Indices 15 Sep : A K
Fredericksburg 5
Planetary 8 2233 2232
2B. MAGNETIC FORECAST
Date Ap Conditions
17 Sep 6 Quiet
18 Sep 9 Quiet
19 Sep 9 Quiet
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
16 Sep Fair-normal Normal Fair
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
17 Sep Normal Normal Normal
18 Sep Normal Normal Normal-Fair
19 Sep Normal Normal Normal-Fair
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
16 Sep 152
Observed Australian Regional MUFs
15 to 30% above predicted monthly values
Predicted Monthly T index for September: 96
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
17 Sep 150 15-20% above predicted monthly values
18 Sep 150 15 to 20% above predicted monthly values
19 Sep 150 15 to 20% above predicted monthly values
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 15 Sep
Daily Proton Fluence >1 MeV: 9.5E+04
Daily Proton Fluence >10 MeV: 1.2E+04
Daily Electron Fluence >2 MeV: 9.50E+07 (normal)
X-ray background: B7.7
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
ACE Satellite Solar Wind Day Averaged Data for 15 Sep
Speed: 369 km/sec Density: 3.1 p/cc Temp: 38000 K Bz: -2 nT
(Courtesy Space Environment Center, Boulder USA)
ACE data can be incorrect during strong proton events.
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IPS Radio and Space Services | email: asfc at ips.gov.au
PO Box 1386 | WWW: http://www.ips.gov.au
Haymarket NSW 1240 AUSTRALIA | FTP: ftp://ftp.ips.gov.au
tel: +61 2 9213 8010 | fax: +61 2 9213 8060
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