Weekly Report

(last updated 08 Jan 2026 05:52 UT)

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT ISSUED ON 08 JANUARY 2026 FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx 1. SUMMARY (30 DECEMBER - 07 JANUARY) 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 30 Dec 2222 2212 6 31 Dec 2232 4211 9 01 Jan 2233 4223 12 02 Jan 3232 4343 16 03 Jan 3322 3222 10 04 Jan 1102 0223 5 05 Jan 2333 3112 10 06 Jan 1112 3111 5 07 Jan 2100 1122 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. Active on 2 Jan. Quiet to unsettled on other days. 2. FORECAST (08 JANUARY - 07 FEBRUARY) Disturbed Periods: 17-20 Jan, 29 Jan.9-10 Jan. Best Quiet Periods: 11 Jan, 15-16 Jan, 23 Jan, 27 Jan, 31 Jan, 2 Feb. 3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS Northern Australian Regions: Disturbed Periods: None. Best Quiet Periods: 8 Jan to 3 Feb. Central Australian Regions: Disturbed Periods: None. Best Quiet Periods: 8 Jan to 3 Feb. Southern Australian Regions: Disturbed Periods: 18-19 Jan. Best Quiet Periods: 8-12 Jan, 15-16 Jan, 22 Jan to 3 Feb. 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.