Daily Report

Geomagnetic Summary

(last updated 28 Feb 2021 23:33 UT)

Geomagnetic field for Australian Region 28 Feb: Mostly quiet Estimated Indices 28 Feb : A K Australian Region 3 11001122 Cocos Island 2 01000122 Darwin 3 12000113 Townsville 4 11001123 Learmonth 3 11001122 Alice Springs 3 11000023 Gingin 3 11000032 Canberra 2 12001012 Hobart 2 12001012 Estimated Antarctic Regional K Indices 28 Feb : Macquarie Island 2 02001012 Casey 11 24411032 Mawson 20 13112165 Observed Regional daily pc3 Indices 28 Feb : Darwin 0 (Quiet) Townsville 0 (Quiet) Learmonth 0 (Quiet) Alice Springs 0 (Quiet) Gingin 0 (Quiet) Canberra 0 (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 28 Feb : A Fredericksburg 5 Planetary 5 Observed AFr/Ap Indices 27 Feb : A K Fredericksburg 3 Planetary 4 1120 1121

Geomagnetic Forecast

(last updated 28 Feb 2021 23:33 UT)

Date Ap Conditions 01 Mar 18 Quit to active with possible minor storm levels. 02 Mar 12 Quiet to active. 03 Mar 9 Quiet to Unsettled COMMENT: SWS Geomagnetic Warning 8 was issued on 28 February and is current for 1-2 Mar. On UT day 28 February, mostly quiet conditions were observed in the Australian region. Quiet to storm levels were observed in the Antarctic region. On UT day 1 March geomagnetic activity is expected to be quiet to active with possible minor storm periods due to coronal hole effects. Quiet to active levels are expected on UT day 2 March with quiet to unsettled conditions on UT day 3 March.