[Ips-dsgr] IPS Daily Report - 30 November 01
rwc
rwc at ips.gov.au
Sat Dec 1 10:41:05 EST 2001
SUBJ: IPS DAILY SOLAR AND GEOPHYSICAL REPORT
ISSUED AT 30/2330Z NOVEMBER 2001 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
SUMMARY FOR 30 NOVEMBER AND FORECAST FOR 01 DECEMBER - 03 DECEMBER
STATUS INDICATORS SOL:**RED** MAG:*YELLOW* ION: GREEN
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1A. SOLAR SUMMARY
Activity 30 Nov: Moderate
Flares Max Fadeout Freq. Sectors
M3.7 0106UT possible lower West Pacific
M1.6 1418UT possible lower South American/
Atlantic
M3.2 2001UT possible lower East Pacific/
North American
Observed 10.7 cm flux/Equivalent Sunspot Number for 30 Nov: 226/176
1B. SOLAR FORECAST
01 Dec 02 Dec 03 Dec
Activity Moderate to high Moderate to high Moderate to high
Fadeouts Probable Probable Probable
10.7cm/SSN 215/165 220/170 220/170
Previously M-flare(s) producing region 9690 is due for return
to the south-east limb around 2 Dec.
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2A. MAGNETIC SUMMARY
Geomagnetic field for Australian Region 30 Nov: Quiet
Estimated Indices 30 Nov : A K
Australian Region 2 2111 0012
Darwin 1 2100 0012
Learmonth 2 2000 0022
Canberra 1 1010 0013
Hobart 1 1110 0011
Casey(Ant) 8 3332 111-
Davis(Ant) 8 3322 1122
Observed Regional daily pc3 Indices 30 NOV :
Darwin 0 (Quiet)
Townsville 0 (Quiet)
Learmonth 0 (Quiet)
Canberra 0 (Quiet)
Hobart 0 (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 30 Nov : A
Fredericksburg 2
Planetary 2
Observed AFr/Ap Indices 29 Nov : A K
Fredericksburg 1
Planetary 3 2111 1110
2B. MAGNETIC FORECAST
Date Ap Conditions
01 Dec 25 Unsettled to active levels with possible minor
storm periods.
02 Dec 15 Unsettled to active
03 Dec 12 Unsettled
COMMENT: IPS Geomagnetic Warning 47 was issued on 30 November
and is current for interval 1-2 December. A weak shock was observed
in the solar wind at 1730UT and produced a small impulse in the
IPS magnetometer data of less than 10nT at 1824UT. The partial
halo CME observed in association with an M6-flare at 1635UT on
28 November is expected to impact the Earth on 1 December and
produce mildly elevated levels of geomagnetic activity. This
CME, and other CME activity associated with recent flare activity,
does not appear to be largely Earthward directed.
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3A. GLOBAL HF PROPAGATION SUMMARY
Latitude Band
Date Low Middle High
30 Nov Normal Normal Normal
PCA Event : No event.
3B. GLOBAL HF PROPAGATION FORECAST
Latitude Band
Date Low Middle High
01 Dec Normal Normal-fair Fair
02 Dec Normal Normal Normal-fair
03 Dec Normal Normal Normal-fair
COMMENT: Mildly enhanced geomagnetic activity anticipated for
1 December may produce slightly degraded HF conditions for that
day.
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4A. AUSTRALIAN REGION IONOSPHERIC SUMMARY
Date T index
30 Nov 180
Observed Australian Regional MUFs
Normal to enhanced at all stations.
Predicted Monthly T index for November: 109
4B. AUSTRALIAN REGION IONOSPHERIC FORECAST
Date T index MUFs
01 Dec 120 depressed 5 to 15%/near predicted monthly values
02 Dec 160 Near predicted monthly values
03 Dec 160 Near predicted monthly values
COMMENT: IPS HF Communications Warning 78 was issued on 30 November
and is current for interval 1-2 December. Mildly enhanced geomagnetic
activity anticipated for 1 December may produce slightly degraded
HF conditions for that day.
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5. SPACE ENVIRONMENT SUMMARY
GOES satellite data for 29 Nov
Daily Proton Fluence >1 MeV: 4.1E+06
Daily Proton Fluence >10 MeV: 1.9E+05
Daily Electron Fluence >2 MeV: 7.60E+05 (normal)
X-ray background: C1.1
Fluence (flux accumulation over 24hrs)/ cm2-ster-day.
ACE Satellite Solar Wind Day Averaged Data for 29 Nov
Speed: 422 km/sec Density: 3.5 p/cc Temp: 84100 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/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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