Daily Report

Geomagnetic Summary

(last updated 03 Sep 2025 23:30 UT)

Geomagnetic field for Australian Region 03 Sep: G0 Estimated Indices 03 Sep : A K Australian Region 5 22221021 Cocos Island 4 22121020 Darwin 5 22221121 Townsville 4 22221011 Learmonth 6 32222021 Alice Springs 5 22221021 Gingin 6 22221130 Canberra 4 22211021 Kennaook Cape Grim 5 22211121 Hobart 5 22211121 Estimated Antarctic Regional K Indices 03 Sep : Macquarie Island 7 33321020 Casey 11 43331031 Mawson 27 53442163 Observed Regional daily pc3 Indices 03 Sep : Darwin 0 (Quiet) Townsville 0 (Quiet) Learmonth 0 (Quiet) Alice Springs 0 (Quiet) Gingin 11 (Quiet) Canberra 8 (Quiet) Hobart 28 (Quiet to unsettled) 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. 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. Estimated AFr/Ap Indices 03 Sep : A Fredericksburg 11 Planetary 14 Observed AFr/Ap Indices 02 Sep : A K Fredericksburg 34 Planetary 14 5444 3454

Geomagnetic Forecast

(last updated 03 Sep 2025 23:30 UT)

Date Ap Conditions 04 Sep 10 G0 05 Sep 14 G0 06 Sep 20 G0-G1 COMMENT: G0 geomagnetic conditions were observed in the Australian region on UT day 03-Sep. G1 geomagnetic conditions were observed in the Antarctic region. G0 geomagnetic conditions are expected on 04-05 Sep. G0-G1 geomagnetic conditions are expected on 06-Sep due to a recurrent southern hemisphere coronal hole moving into a geoeffective position.