Daily Report

Geomagnetic Summary

(last updated 19 Sep 2026 23:30 UT)

Geomagnetic field for Australian Region 19 Sep: G0 Estimated Indices 19 Sep : A K Australian Region 4 22102211 Cocos Island 3 22111110 Darwin 6 23102212 Townsville 6 23112112 Learmonth 5 22103211 Alice Springs 3 12102111 Gingin 5 22102221 Canberra 3 12101211 Kennaook Cape Grim 4 22102211 Hobart 4 22101211 Estimated Antarctic Regional K Indices 19 Sep : Casey 12 34422221 Mawson 13 24321333 Observed Regional daily pc3 Indices 19 Sep : Darwin 0 (Quiet) Townsville 0 (Quiet) Learmonth 0 (Quiet) Alice Springs 0 (Quiet) Gingin 0 (Quiet) Canberra 2 (Quiet) 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 19 Sep : A Fredericksburg 7 Planetary 7 Observed AFr/Ap Indices 18 Sep : A K Fredericksburg 6 Planetary 5 2222 1112

Geomagnetic Forecast

(last updated 19 Sep 2026 23:30 UT)

Date Ap Conditions 20 Sep 4 G0 21 Sep 4 G0 22 Sep 8 G0 COMMENT: Geomagnetic conditions in the Australian region on UT day 19-Sep were at the G0 level, with G0 conditions also reported in the Antarctic region and at the planetary level. G0 conditions are forecast over 20-22 Sep.