Daily Report

Geomagnetic Summary

(last updated 26 Feb 2026 23:30 UT)

Geomagnetic field for Australian Region 26 Feb: G0 Estimated Indices 26 Feb : A K Australian Region 8 22322222 Cocos Island 7 32321121 Darwin 8 23321222 Townsville 9 23322222 Learmonth 11 32322332 Alice Springs 7 22321222 Gingin 10 32323231 Canberra 9 22332222 Kennaook Cape Grim 10 23332222 Hobart 10 23332222 Estimated Antarctic Regional K Indices 26 Feb : Macquarie Island 24 34554322 Casey 30 55633233 Mawson 58 55543483 Observed Regional daily pc3 Indices 26 Feb : Darwin 0 (Quiet) Townsville 0 (Quiet) Learmonth 0 (Quiet) Alice Springs 0 (Quiet) Gingin 4 (Quiet) Canberra 4 (Quiet) Hobart 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 26 Feb : A Fredericksburg 15 Planetary 17 Observed AFr/Ap Indices 25 Feb : A K Fredericksburg 11 Planetary 14 4223 3324

Geomagnetic Forecast

(last updated 26 Feb 2026 23:30 UT)

Date Ap Conditions 27 Feb 5 G0 28 Feb 14 G0 01 Mar 10 G0 COMMENT: G0 geomagnetic conditions were observed in the Australian region on UT day 26-Feb. Mostly G0 geomagnetic conditions were observed in the Antarctic region, although an isolated period of G4 was observed at the Mawson station. G0 geomagnetic conditions are expected over 27-28 Feb and 1-Mar. A weak CME impact is expected late on 28-Feb but this is not expected to cause any activity above G0.