Daily Report

Geomagnetic Summary

(last updated 18 May 2022 23:31 UT)

Geomagnetic field for Australian Region 18 May: G0 Estimated Indices 18 May : A K Australian Region 3 22110201 Darwin 3 21101202 Learmonth 3 22110210 Alice Springs 3 22000201 Gingin 3 22110200 Canberra 3 22010201 Hobart 3 21011201 Estimated Antarctic Regional K Indices 18 May : Macquarie Island 2 11020100 Casey 8 33221222 Mawson 14 54322112 Observed Regional daily pc3 Indices 18 May : Darwin 0 (Quiet) Townsville NA Learmonth 0 (Quiet) Alice Springs 0 (Quiet) Gingin 6 (Quiet) Canberra 14 (Quiet) Hobart 21 (Quiet to unsettled) 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 May : A Fredericksburg 8 Planetary 8 Observed AFr/Ap Indices 17 May : A K Fredericksburg 15 Planetary 13 1333 3232

Geomagnetic Forecast

(last updated 18 May 2022 23:31 UT)

Date Ap Conditions 19 May 5 G0 20 May 5 G0 21 May 5 G0 COMMENT: G0 geomagnetic conditions were observed in the Australian region on UT day 18-May. G0 conditions were observed in the Antarctic region, with an isolated period of G1 observed at Mawson in the earlier part of the UT day. G0 conditions are likely for the Australian region during 19-21 May.