[Ips-wgr] IPS Weekly Geo. Report (21 June 07)
rwc
rwc at ips.gov.au
Thu Jun 21 13:48:40 EST 2007
SUBJ: IPS WEEKLY GEOPHYSICAL REPORT
ISSUED ON 21 JUNE 2007, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
1. SUMMARY (12 JUNE - 20 JUNE)
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
12 Jun 1111 1011 2
13 Jun 1112 2221 5
14 Jun 3334 3332 15
15 Jun 2222 2211 6
16 Jun 1312 3211 7
17 Jun 2222 3111 6
18 Jun 1211 1221 4
19 Jun 2222 2111 5
20 Jun 2122 1101 4
Slightly elevated activity observed on 14 June due to coronal hole
solar wind stream, otherwise mostly quiet conditions were observed.
*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 (21 JUNE - 21 JULY)
Disturbed Periods:
Active levels possible 21 June and 18-19 July.
Best Quiet Periods:
24 June to 10 July.
3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: NA
Central Australian Regions:
Disturbed Periods: 22-23 June, 11 July.
Best Quiet Periods: 25 June to 10 July.
Southern Australian Regions:
Disturbed Periods: 22-23 June.
Best Quiet Periods: 25 June to 9 July.
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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