[Ips-dsgr] IPS Daily Report - 02 September 02
rwc
rwc at ips.gov.au
Tue Sep 3 09:54:42 EST 2002
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 02/2330Z SEPTEMBER 2002 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 02 SEPTEMBER AND FORECAST FOR 03 SEPTEMBER - 05 SEPTEMBER
STATUS INDICATORS SOL:** YELLOW ** MAG:GREEN ION: GREEN
-----------------------------------------------------------
1A. SOLAR SUMMARY
Activity 02 Sep: Low
Flares: none.
Observed 10.7 cm flux/Equivalent Sunspot Number for 02 Sep: 174/128
1B. SOLAR FORECAST
03 Sep 04 Sep 05 Sep
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 solar activity remained low on UT day 02
September. The largest event recorded was a C2.3 flare
at 0248UT. A type II radio burst was observed at 0012UT
and was associated with a C2 flare/0008UT.Regions
95(N08E24) and 97(N13E08) have shown some growth and
both of these regions have potential for M-class flare.
Bz remained southwards for the first 5 hours(approx.) of
the UT day 02 September. Bz remained predominantly northwards
for the rest of the day. The solar wind speed varied between
320 and 360 km/s (approx.) through the UT day.
-----------------------------------------------------------
2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 02 Sep:
Mostly quiet to unsettled with isolated active periods.
Estimated Indices 02 Sep : A K
Australian Region 10 3324 2102
Townsville - ---- ----
Learmonth 6 2223 2103
Canberra 9 2324 2102
Hobart 10 2324 3102
Casey(Ant) 23 443- ----
Davis(Ant) 13 -434 2102
Observed Regional daily pc3 Indices 02 SEP :
Townsville NA
Learmonth 2 (Quiet)
Canberra 6 (Quiet)
Hobart 10 (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 02 Sep : A
Fredericksburg 10
Planetary 12
Observed AFr/Ap Indices 01 Sep : A K
Fredericksburg 13
Planetary 13 4332 2334
2B. MAGNETIC FORECAST
Date Ap Conditions
03 Sep 10 Quiet to unsettled
04 Sep 10 Quiet to unsettled
05 Sep 14 Mostly quiet to unsettled with possibility of
isolated active periods.
COMMENT: The geo-magnetic activity is expected to remain
mostly at quiet to unsettled levels over the next two days.
-----------------------------------------------------------
3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
02 Sep Normal Normal Normal-fair
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
03 Sep Normal Normal Normal-Fair
04 Sep Normal Normal Normal-Fair
05 Sep Normal Normal Normal-Fair
COMMENT: HF conditions are expected to remain mostly normal
over the next two days at almost all latitudes.
-----------------------------------------------------------
4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
02 Sep 122
Observed Australian Regional MUFs
Equatorial PNG Region:
Enhanced by 25% during local day,
Near predicted monthly values during local night.
Northern Australian Region:
Near predicted monthly values.
Southern Australian and New Zealand Region:
Enhanced by 15% during local day,
Near predicted monthly values during local night.
Enhanced by 20% after local dawn.
Antarctic Region (Casey/Scott Base):
Enhanced by 15% over the UT day with
periods of depressions and degradations.
Predicted Monthly T index for September: 96
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
03 Sep 123 Near predicted monthly values to enhanced 5-15%.
04 Sep 120 Near predicted monthly values to enhanced 5-15%.
05 Sep 116 Near predicted monthly values
COMMENT: HF conditions are expected to remain mostly normal
during the next two days across Australian regions.
-----------------------------------------------------------
5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 01 Sep
Daily Proton Fluence >1 MeV: 5.2E+04
Daily Proton Fluence >10 MeV: 1.1E+04
Daily Electron Fluence >2 MeV: 1.60E+06 (normal)
X-ray background: C1.7
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
ACE Satellite Solar Wind Day Averaged Data for 01 Sep
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.
-----------------------------------------------------------
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