Daily Report

Geomagnetic Summary

(last updated 19 Jul 2026 23:30 UT)

Geomagnetic field for Australian Region 19 Jul: G0 Estimated Indices 19 Jul : A K Australian Region 0 00100000 Cocos Island 0 01010000 Darwin 1 01100001 Townsville 1 01100011 Learmonth 0 00110000 Alice Springs 0 00100000 Gingin 0 00100010 Canberra 0 00000000 Kennaook Cape Grim 0 00000000 Hobart 0 00000000 Estimated Antarctic Regional K Indices 19 Jul : Macquarie Island 0 00000000 Casey 2 12200010 Mawson 2 01010022 Observed Regional daily pc3 Indices 19 Jul : Darwin 0 (Quiet) Townsville 0 (Quiet) Learmonth 0 (Quiet) Alice Springs 0 (Quiet) Gingin 0 (Quiet) Canberra 0 (Quiet) Hobart 0 (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 Jul : A Fredericksburg 5 Planetary 4 Observed AFr/Ap Indices 18 Jul : A K Fredericksburg 4 Planetary 5 2111 1111

Geomagnetic Forecast

(last updated 19 Jul 2026 23:30 UT)

Date Ap Conditions 20 Jul 4 G0 21 Jul 5 G0 22 Jul 25 G1, chance of G2 COMMENT: G0 geomagnetic conditions were observed in the planetary, Australian and Antarctic regions on UT day 19-Jul. G0 planetary geomagnetic conditions are expected over 20-21 Jul. G1 planetary geomagnetic conditions are expected on 22-Jul, with a chance of G2 due to coronal hole high speed wind stream effects from a narrow, elongated coronal hole feature.