Daily Report

Geomagnetic Summary

(last updated 16 Jul 2018 23:30 UT)

Geomagnetic field for Australian Region 16 Jul: Quiet to Unsettled Estimated Indices 16 Jul : A K Australian Region 9 12331223 Cocos Island 5 12211212 Darwin 6 12221222 Townsville 9 22331223 Learmonth 9 12231224 Alice Springs 6 12220223 Culgoora 8 12330213 Gingin 4 0222121- Canberra 8 12331213 Launceston 11 02341323 Hobart 8 01341212 Estimated Antarctic Regional K Indices 16 Jul : Macquarie Island 15 01462111 Casey 5 12211113 Mawson 35 23332176 Davis 24 13431156 Observed Regional daily pc3 Indices 16 Jul : 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 16 Jul : A Fredericksburg 7 Planetary 7 Observed AFr/Ap Indices 15 Jul : A K Fredericksburg 4 Planetary 3 2110 1101

Geomagnetic Forecast

(last updated 16 Jul 2018 23:30 UT)

Date Ap Conditions 17 Jul 7 Quiet to Unsettled 18 Jul 6 Quiet 19 Jul 8 Quiet to Unsettled COMMENT: Geomagnetic activity was at quiet to unsettled levels across the Australian region today (UT day 16 July). Mostly quiet to unsettled levels of geomagnetic activity are expected for the next three UT days (17-19 July). Later on UT day 19 July geomagnetic activity can increase due to effects related to a recurrent coronal hole which was facing the Earth on 16 July.