Weekly Report

(last updated 06 Aug 2026 02:16 UT)

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT ISSUED ON 06 AUGUST 2026 FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx 1. SUMMARY (28 JULY - 05 AUGUST) 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 28 Jul 1122 1221 5 29 Jul 1211 0000 2 30 Jul 1111 0000 1 31 Jul 0110 2100 2 01 Aug 1110 0001 1 02 Aug 0111 3321 6 In the BOM magnetometer data for 02 Aug, a weak (10nT) impulse was observed at 1225UT. 03 Aug 3322 3123 10 04 Aug 2222 0001 3 05 Aug 1110 0001 1 *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 conditions were reported in the Australian region throughout the entire week. 2. FORECAST (06 AUGUST - 05 SEPTEMBER) Disturbed Periods: 18-22 Aug. Best Quiet Periods: 6 Aug, 10 Aug, 12-16 Aug, 23 Aug, 25-28 Aug. 3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS Northern Australian Regions: Disturbed Periods: None. Best Quiet Periods: 06-18 Aug 25 Aug - 05 Sep. Central Australian Regions: Disturbed Periods: None. Best Quiet Periods: 06-18 Aug 25 Aug - 05 Sep. Southern Australian Regions: Disturbed Periods: None. Best Quiet Periods: 7-18 Aug, 22 Aug to 1 Sep. 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.