[Ips-wgr] IPS Weekly Geo. Report (25 September 14) issued 0219 UT on 25 Sep 2014
rwc at ips.gov.au
Thu Sep 25 12:19:22 EST 2014
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 25 SEPTEMBER 2014, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (16 SEPTEMBER - 24 SEPTEMBER)
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
16 Sep 2322 1122 7
17 Sep 1111 0223 5
18 Sep 3221 1122 6
19 Sep 2332 3322 11
20 Sep 2211 2202 5
21 Sep 2321 1011 5
22 Sep 2222 3212 7
23 Sep 2112 2322 7
24 Sep 2223 3333 12
*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 International Center for Space Weather
Science and Education, Japan.
Quiet to unsettled conditions.
2. FORECAST (25 SEPTEMBER - 25 OCTOBER)
Best Quiet Periods:
1 Oct, 5-6 Oct, 8-9 Oct, 11-15 Oct, 17 Oct.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
Disturbed Periods: None.
Central Australian Regions:
Disturbed Periods: 25-28 Sep.
Southern Australian Regions:
Disturbed Periods: 25-28 Sep, 18 Oct.
Best Quiet Periods: 29 Sep to 8 Oct, 11-15 Oct, 20-21 Oct.
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.
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