Daily Report

Geomagnetic Summary

(last updated 03 Jul 2025 23:30 UT)

Geomagnetic field for Australian Region 03 Jul: G0 Estimated Indices 03 Jul : A K Australian Region 12 23333322 Cocos Island 11 23333222 Darwin 13 23343322 Townsville 11 23------ Learmonth 15 23343333 Alice Springs 12 23333322 Gingin 13 23333332 Canberra 12 23333322 Kennaook Cape Grim 11 13333322 Hobart 11 13333322 Estimated Antarctic Regional K Indices 03 Jul : Macquarie Island 11 13204421 Casey 10 23332222 Mawson 25 43432246 Observed Regional daily pc3 Indices 03 Jul : Darwin 0 (Quiet) Townsville 0 (Quiet) Learmonth 0 (Quiet) Alice Springs 0 (Quiet) Gingin 4 (Quiet) Canberra 0 (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 03 Jul : A Fredericksburg 14 Planetary 18 Observed AFr/Ap Indices 02 Jul : A K Fredericksburg 8 Planetary 14 1222 2222

Geomagnetic Forecast

(last updated 03 Jul 2025 23:30 UT)

Date Ap Conditions 04 Jul 16 G0, chance G1 05 Jul 15 G0, chance G1 06 Jul 14 G0 COMMENT: G0 geomagnetic conditions were observed in the Australian region on UT day 3-Jul. Mostly G0 conditions were observed in the Antarctic region with an isolated G2 period observed at Mawson. G0, chance G1 conditions expected 04-05 Jul due to a coronal hole wind stream.