Daily Report

Geomagnetic Summary

(last updated 25 Mar 2026 23:30 UT)

Geomagnetic field for Australian Region 25 Mar: G0 Estimated Indices 25 Mar : A K Australian Region 8 22431120 Cocos Island 5 22320110 Darwin - -------- Townsville 9 22431121 Learmonth 8 22431120 Alice Springs 8 22431111 Gingin 8 32331220 Canberra 11 22531121 Kennaook Cape Grim 11 22532120 Hobart 11 22531120 Estimated Antarctic Regional K Indices 25 Mar : Macquarie Island 14 23542120 Casey 20 44543221 Mawson 30 45642251 Observed Regional daily pc3 Indices 25 Mar : Darwin 0 (Quiet) Townsville 0 (Quiet) Learmonth 0 (Quiet) Alice Springs 0 (Quiet) Gingin 7 (Quiet) Canberra 8 (Quiet) Hobart 4 (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 25 Mar : A Fredericksburg 15 Planetary 17 Observed AFr/Ap Indices 24 Mar : A K Fredericksburg 12 Planetary 16 3434 3233

Geomagnetic Forecast

(last updated 25 Mar 2026 23:30 UT)

Date Ap Conditions 26 Mar 11 G0 27 Mar 8 G0 28 Mar 14 G0-G1 COMMENT: ASWFC Geomagnetic Warning 20 was issued on 24 March and is current for 24-26 Mar. G0 geomagnetic conditions were observed in the Australian region on UT day 25-Mar. G0-G2 geomagnetic conditions were observed in the Antarctic region. An isolated period of G1 was observed on the planetary scale. Mostly G0 geomagnetic conditions are expected over 26-28 Mar. Isolated periods of G1 may be possible on 28-Mar due to connection with a coronal hole.