Daily Report

Geomagnetic Summary

(last updated 18 Sep 2018 23:43 UT)

Geomagnetic field for Australian Region 18 Sep: Quiet to Unsettled Estimated Indices 18 Sep : A K Australian Region 4 21131101 Cocos Island 3 2212010- Darwin 4 2113010- Townsville 5 2123110- Learmonth 6 2223210- Alice Springs 4 1123010- Culgoora 3 11131001 Gingin 6 3113110- Canberra 3 1113100- Launceston 6 22232011 Hobart 4 12132001 Estimated Antarctic Regional K Indices 18 Sep : Macquarie Island 10 1135200- Casey 12 3443110- Mawson 15 3444111- Davis 9 23431111 Observed Regional daily pc3 Indices 18 Sep : Darwin 0 (Quiet) Townsville 0 (Quiet) Learmonth 0 (Quiet) Alice Springs 0 (Quiet) Gingin 26 (Quiet to unsettled) Canberra 17 (Quiet) Melbourne NA 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 18 Sep : A Fredericksburg 7 Planetary 8 Observed AFr/Ap Indices 17 Sep : A K Fredericksburg 9 Planetary 11 33222233

Geomagnetic Forecast

(last updated 18 Sep 2018 23:43 UT)

Date Ap Conditions 19 Sep 7 Quiet 20 Sep 6 Quiet 21 Sep 5 Quiet COMMENT: Quiet to Unsettled geomagnetic conditions observed over the Australian region for 18Sep with occasional Active periods for Antarctic regions in the first half of the UT day. Mostly Quiet conditions expected for the next 3 days due to the declining influence of recurrent coronal hole effects on the solar wind.