Daily Report

Geomagnetic Summary

(last updated 18 Nov 2019 23:31 UT)

Geomagnetic field for Australian Region 18 Nov: Quiet Estimated Indices 18 Nov : A K Australian Region 0 00000010 Cocos Island 0 00000000 Darwin 0 01000001 Townsville 1 11010011 Learmonth 0 00000011 Alice Springs 0 10000000 Gingin 0 00000010 Canberra 0 00000000 Hobart 0 00000010 Estimated Antarctic Regional K Indices 18 Nov : Macquarie Island 0 00000000 Casey 4 13211011 Mawson 6 11012133 Observed Regional daily pc3 Indices 18 Nov : Darwin 2 (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 18 Nov : A Fredericksburg 2 Planetary 2 Observed AFr/Ap Indices 17 Nov : A K Fredericksburg 3 Planetary 3 1100 0112

Geomagnetic Forecast

(last updated 18 Nov 2019 23:31 UT)

Date Ap Conditions 19 Nov 6 Quiet 20 Nov 12 Mostly quiet to unsettled, isolated active periods possible 21 Nov 16 Mostly unsettled to active COMMENT: Geomagnetic activity stayed at quiet levels in the Australian/NZ regions and from quiet to unsettled levels in the Antarctic regions through UT day 18 November. Global geomagnetic activity is expected to stay mostly at quiet levels through UT day 19 November and then show a gradual rise to unsettled and later active levels through UT days 20 and 21 November due to the effect of a recurrent positive polarity coronal hole.