[Ips-wgr] IPS Weekly Geo. Report (12 April 07)
rwc
rwc at ips.gov.au
Thu Apr 12 12:07:56 EST 2007
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 12 APRIL 2007, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (03 APRIL - 11 APRIL)
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
03 Apr 3333 1322 11
04 Apr 3223 2122 8
05 Apr 2221 1111 4
06 Apr 2221 1111 4
07 Apr 2111 1111 3
08 Apr 1121 1212 4
09 Apr 4442 2011 12 A weak (14nT) impulse was observed in the IPS
magnetometer data at 0442UT on 09 Apr.
10 Apr 2202 2222 6
11 Apr 2211 1011 3
*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 (12 APRIL - 12 MAY)
Disturbed Periods:
active on 29 Apr.
Best Quiet Periods:
12 Apr to 18 Apr, 24 Apr to 27 Apr, 2 May to 5 May, 7 May to 8 May.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: NA
Central Australian Regions: NA
Southern Australian Regions:
Disturbed Periods: None.
Best Quiet Periods: 13 Apr to 21 Apr, 25 Apr to 27 Apr, 2 May to 6 May.
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
flight-line data.
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