[Ips-wgr] IPS Weekly Geo. Report (29 October 09)
rwc at ips.gov.au
Thu Oct 29 13:34:45 EST 2009
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 29 OCTOBER 2009, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (20 OCTOBER - 28 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
Date K-INDICES A
20 Oct 1111 0011 2
21 Oct 1111 1111 3
22 Oct 3224 2233 12
23 Oct 3323 2212 9
24 Oct 2222 3333 11
25 Oct 2222 2211 6
26 Oct 2212 1112 5
27 Oct 1211 2112 4
28 Oct 2122 1111 4
*estimated from real time data
NOTE: Indices may have been generated from data obtained in
cooperation with the following organisations: Geoscience Australia,
University of Newcastle Space Physics Group, Australian Government
Antarctic Division and Space Environment Research Center, Japan.
Quiet to unsettled conditions.
2. FORECAST (29 OCTOBER - 28 NOVEMBER)
No strong recurrent patterns, however mild activity may be experienced on:
19 Nov to 20 Nov.
Best Quiet Periods:
29 Oct to 18 Nov, 21 Nov to 24 Nov.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: Quiet
Central Australian Regions: Quiet
Southern Australian Regions: 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 and have been shown to be well
correlated with rejection of high resolution aeromagnetic survey
Geomagnetic activity can frequently be determined by short timescale
solar events that cannot be forecast a week in advance, particularly
at solar maximum.
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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