Daily Report

Geomagnetic Summary

(last updated 26 Dec 2025 23:30 UT)

Geomagnetic field for Australian Region 26 Dec: G0 Estimated Indices 26 Dec : A K Australian Region 5 12222211 Cocos Island 5 12222210 Darwin 7 22222312 Townsville 5 12212221 Learmonth 7 22222312 Alice Springs 5 12222211 Gingin 7 22222312 Canberra 5 02222212 Kennaook Cape Grim 5 12222211 Hobart 6 12222212 Estimated Antarctic Regional K Indices 26 Dec : Macquarie Island 8 13223311 Casey 28 46543322 Mawson 15 34333313 Observed Regional daily pc3 Indices 26 Dec : Darwin 0 (Quiet) Townsville 0 (Quiet) Learmonth 0 (Quiet) Alice Springs 0 (Quiet) Gingin 13 (Quiet) Canberra 4 (Quiet) Hobart 14 (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 Dec : A Fredericksburg 7 Planetary 8 Observed AFr/Ap Indices 25 Dec : A K Fredericksburg 8 Planetary 11 3332 2212

Geomagnetic Forecast

(last updated 26 Dec 2025 23:30 UT)

Date Ap Conditions 27 Dec 8 G0 28 Dec 8 G0 29 Dec 10 G0 COMMENT: G0 geomagnetic conditions were observed in the Australian region on UT day 26-Dec. G0-G2 geomagnetic conditions were observed in the Antarctic region. G0 geomagnetic conditions are expected over 27-29 Dec.