Weekly Report
(last updated 03 Sep 2026 01:53 UT)
SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT ISSUED ON 03 SEPTEMBER 2026 FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx 1. SUMMARY (25 AUGUST - 02 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 Australian Region* Date K-INDICES A 25 Aug 1121 0100 2 26 Aug 0110 0001 1 27 Aug 1100 0001 1 28 Aug 0111 2333 7 29 Aug 3232 2232 10 30 Aug 3323 2321 10 31 Aug 2223 1111 6 01 Sep 1112 2221 5 02 Sep 1111 1012 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 International Center for Space Weather Science and Education, Japan. G0 geomagnetic conditions in the Australian region on all days this week. 2. FORECAST (03 SEPTEMBER - 03 OCTOBER) Disturbed Periods: 8-9 Sep, 14-15 Sep Best Quiet Periods: 4-7 Sep, 10-12 Sep, 16-23 Sep, 28-Sep to 3-Oct 3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS Northern Australian Regions: Disturbed Periods: None. Mildly Disturbed Periods: None. Best Quiet Periods: 4-7 Sep, 10-12 Sep, 16-23 Sep, 28-Sep to 3-Oct. Central Australian Regions: Disturbed Periods: None. Mildly Disturbed Periods: 14-17 Sep. Best Quiet Periods: 4-7 Sep, 10-12 Sep, 18-23 Sep, 28-Sep to 3-Oct. Southern Australian Regions: Disturbed Periods: 8-9 Sep, 14-17 Sep Best Quiet Periods: 4-7 Sep, 10-12 Sep, 18-23 Sep, 28-Sep to 3-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 flight-line data. PLEASE NOTE: Geomagnetic activity can frequently be determined by short timescale solar events that cannot be forecast a week in advance, particularly at solar maximum.
