Daily Report

Geomagnetic Summary

(last updated 27 Feb 2020 23:30 UT)

Geomagnetic field for Australian Region 27 Feb: Quiet Estimated Indices 27 Feb : A K Australian Region 2 10110111 Cocos Island 1 11100110 Darwin 3 20111112 Townsville 3 20111111 Learmonth 2 20101110 Alice Springs 1 10100101 Gingin 1 10110110 Canberra 1 10110001 Hobart 1 10110101 Estimated Antarctic Regional K Indices 27 Feb : Macquarie Island 1 10020000 Casey 8 33321111 Mawson 17 52222244 Observed Regional daily pc3 Indices 27 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 27 Feb : A Fredericksburg 4 Planetary 4 Observed AFr/Ap Indices 26 Feb : A K Fredericksburg 3 Planetary 2 0000 1022

Geomagnetic Forecast

(last updated 27 Feb 2020 23:30 UT)

Date Ap Conditions 28 Feb 7 Quiet 29 Feb 8 Quiet to Unsettled 01 Mar 10 Quiet to Unsettled COMMENT: Quiet conditions observed in the Australian region on UT day, 27 February. Mostly quiet to unsettled conditions at high southern hemisphere latitudes. Geomagnetic activity is expected to be mostly quiet on 28 February. There may be a weak increase in activity late on 28th or early 29th and another increase in activity late on 1 March, both due to coronal hole effects.