[Ips-dsgr] IPS Daily Report - 10 October 02
rwc
rwc at ips.gov.au
Fri Oct 11 09:32:01 EST 2002
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 10/2330Z OCTOBER 2002 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 10 OCTOBER AND FORECAST FOR 11 OCTOBER - 13 OCTOBER
STATUS INDICATORS SOL:* YELLOW * MAG:* YELLOW * ION: GREEN
-----------------------------------------------------------
1A. SOLAR SUMMARY
Activity 10 Oct: Low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 10 Oct: 172/126
1B. SOLAR FORECAST
11 Oct 12 Oct 13 Oct
Activity Low to moderate Low to moderate Low to moderate
Fadeouts Possible Possible Possible
10.7cm/SSN 175/129 180/133 185/138
COMMENT: Observed solar activity has been low, with only minor
C-class flares observed over the past three days.
-----------------------------------------------------------
2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 10 Oct: Quiet to Active
Estimated Indices 10 Oct : A K
Australian Region 12 1343 3212
Townsville 13 1344 3212
Learmonth 13 2333 3--3
Canberra 13 1344 3212
Hobart 13 1344 -211
Casey(Ant) 7 2332 1112
Observed Regional daily pc3 Indices 10 OCT :
Townsville 0 (Quiet)
Learmonth 2 (Quiet)
Canberra 0 (Quiet)
Hobart 2 (Quiet)
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 10 Oct : A
Fredericksburg 10
Planetary 20
Observed AFr/Ap Indices 09 Oct : A K
Fredericksburg 9
Planetary 22 2455 4433
2B. MAGNETIC FORECAST
Date Ap Conditions
11 Oct 16 active
12 Oct 12 Unsettled
13 Oct 10 Quiet to Unsettled
COMMENT: The north-south component of the interplanetary magnetic
field has remained moderately southward. Solar wind speed has
continued to decline over the UT day. Unsettled to active periods
may be experienced today due to sustained southward IMF.
-----------------------------------------------------------
3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
10 Oct Normal Fair-normal Poor-normal
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
11 Oct Normal Normal-Fair Fair
12 Oct Normal Normal Normal-Fair
13 Oct Normal Normal Normal-Fair
COMMENT: Depressions of 20-30% were observed in southern Australian/New
Zealand regions over the first half of the UT day Oct 10.
-----------------------------------------------------------
4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
10 Oct 120
Observed Australian Regional MUFs
Equatorial PNG Region:
Enhanced by 15% during local day,
Enhanced by 25% during local night.
Enhanced by 20% after local dawn.
Northern Australian Region:
Near predicted monthly values during local day,
Enhanced by 35% during local night.
Enhanced by 15% after local dawn.
Southern Australian and New Zealand Region:
Depressed by 20-30% first half of the UT day.
Near predicted monthly values later.
Antarctic Region (Casey/Scott Base):
Depressed by 10-30% at times.
Predicted Monthly T index for October: 94
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
11 Oct 120 10 to 20% above predicted monthly values
12 Oct 130 15 to 30% above predicted monthly values
13 Oct 130 15 to 30% above predicted monthly values
COMMENT: Depressions of 5-15% may be observed at times mid to
high latitudes on Oct 11.
-----------------------------------------------------------
5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 09 Oct
Daily Proton Fluence >1 MeV: 2.9E+05
Daily Proton Fluence >10 MeV: 1.2E+04
Daily Electron Fluence >2 MeV: 2.60E+07 (normal)
X-ray background: B6.0
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
ACE Satellite Solar Wind Day Averaged Data for 09 Oct
Speed: 410 km/sec Density: 3.1 p/cc Temp: 61000 K Bz: -6 nT
(Courtesy Space Environment Center, Boulder USA)
ACE data can be incorrect during strong proton events.
-----------------------------------------------------------
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
More information about the ips-dsgr
mailing list