[Ips-dsgr] IPS Daily Report - 26 July 02
rwc
rwc at ips.gov.au
Sat Jul 27 09:59:28 EST 2002
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 26/2330Z JULY 2002 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 26 JULY AND FORECAST FOR 27 JULY - 29 JULY
STATUS INDICATORS SOL:** RED ** MAG:** YELLOW ** ION: GREEN
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1A. SOLAR SUMMARY
Activity 26 Jul: High
Flares Max Fadeout Freq. Sectors
M5.2 0010UT possible lower West Pacific
M1.2 0642UT possible lower Mid East/Indian
M1.3 0831UT possible lower Mid East/Indian
M1.1 1903UT possible lower East Pacific/
North American
M9.1 2113UT probable lower East Pacific/
North American
Observed 10.7 cm flux/Equivalent Sunspot Number for 26 Jul: 242/191
1B. SOLAR FORECAST
27 Jul 28 Jul 29 Jul
Activity Moderate to high Moderate to high Moderate to high
Fadeouts Probable Probable Probable
10.7cm/SSN 225/175 225/175 220/170
COMMENT: Flares and shortwave fadeouts expected due to active
solar region.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 26 Jul: Quiet to Unsettled
Estimated Indices 26 Jul : A K
Australian Region 10 3223 2232
Darwin 10 3322 2233
Townsville 8 2223 2222
Learmonth 9 3222 2233
Canberra 9 -223 1232
Hobart 7 2213 1222
Casey(Ant) 9 3322 1232
Davis(Ant) 15 33-3 33--
Observed Regional daily pc3 Indices 26 JUL :
Townsville 2 (Quiet)
Learmonth 0 (Quiet)
Canberra 43 (Unsettled)
Hobart 62 (Active)
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 26 Jul : A
Fredericksburg 12
Planetary 13
Observed AFr/Ap Indices 25 Jul : A K
Fredericksburg 9
Planetary 13 3323 3343
2B. MAGNETIC FORECAST
Date Ap Conditions
27 Jul 12 Quiet to unsettled
28 Jul 12 Quiet to unsettled
29 Jul 16 Unsettled with possible active periods.
COMMENT: Recent flare activity does not appear to have any significant
CME associated activity except for the M8-flare observed at 2114
UT. Increased activity is possible from this event on 29 July.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
26 Jul Normal Normal Normal
PCA Event : Began at 0715UT 22/07, Ended at 0845UT 26/07
and, Began at 0945UT 26/07, Ended at 1055UT 26/07
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
27 Jul Normal Normal Normal-Fair
28 Jul Normal Normal Normal-Fair
29 Jul Normal Normal-Fair Fair
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
26 Jul 130
Observed Australian Regional MUFs
Equatorial PNG Region:
Enhanced by 15% during local day,
Enhanced by 35% during local night.
Enhanced by 20% after local dawn.
Northern Australian Region:
Near predicted monthly values during local day,
Enhanced by 20% during local night.
Southern Australian and New Zealand Region:
Near predicted monthly values during local day,
Enhanced by 20% during local night.
Antarctic Region (Casey/Scott Base):
Enhanced by 30% over the UT day.
Predicted Monthly T index for July: 108
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
27 Jul 120 near predicted monthly values
28 Jul 120 near predicted monthly values
29 Jul 105 near predicted monthly values/depressed 5 to
15%
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 25 Jul
Daily Proton Fluence >1 MeV: 1.4E+07
Daily Proton Fluence >10 MeV: 1.2E+06
Daily Electron Fluence >2 MeV: 7.20E+07 (normal)
X-ray background: C1.3
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
ACE Satellite Solar Wind Day Averaged Data for 25 Jul
Speed: NA km/sec Density: NA p/cc Temp: NA K Bz: NA 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/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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