[Ips-wgr] IPS Weekly Geo. Report (17 October 02)
rwc
rwc at ips.gov.au
Thu Oct 17 12:14:28 EST 2002
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 17 OCTOBER 2002, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (08 OCTOBER - 16 OCTOBER)
K indices are in UT (0-24). For conversion to local time:
AEST = UT + 10 hours; ACST = UT + 9.5 hours; AWST = UT + 8 hours
Australian Region*
Date K-INDICES A
08 Oct 3433 4323 17 A weak (18nT) impulse was observed in the IPS
magnetomter data at 1405UT on 08 Oct.
09 Oct 2233 3332 12
10 Oct 1343 3212 11
11 Oct 2322 2312 8
12 Oct 1112 2202 4
13 Oct 2111 2112 4
14 Oct 2233 4333 14
15 Oct 4434 3333 19
16 Oct 3222 2343 12
*estimated from real time data
A sustained period of southward IMF Bz and low solar wind speeds ended
in the second half of UT day Oct 14. Since that time magnetic conditions
have been unsettled with isolated active periods, especially at high
latitudes. Disturbances have been caused by significant short-term
fluctuations in IMF polarity acompanied by steadily increasing solar wind
speeds.
2. FORECAST (17 OCTOBER - 16 NOVEMBER)
Disturbed Periods:
27 Oct - 6 Nov
Best Quiet Periods:
20-22 Oct
PEASE NOTE:
At this time of the solar cycle, space weather conditions
are frequently determined by short timescale events, not
able to be forecasted a week in advance.
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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