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HomeGeophysicalSummary and ForecastsDaily Report Wednesday, Jan 23 2019 03:47 UT
Summary and Forecasts

Daily Report

Geomagnetic Summary

(last updated 22 Jan 2019 23:30 UT)

Geomagnetic field for Australian Region 22 Jan: Quiet Estimated Indices 22 Jan : A K Australian Region 3 11101112 Cocos Island 2 12100111 Darwin 4 22101112 Townsville 3 21101112 Learmonth 2 12100111 Alice Springs 3 21001112 Culgoora 3 11101112 Gingin 2 12000121 Canberra 2 11001112 Launceston 3 11101112 Hobart 2 11101111 Estimated Antarctic Regional K Indices 22 Jan : Macquarie Island 0 00000001 Casey 9 33321122 Mawson 15 12112155 Davis 5 22111131 Observed Regional daily pc3 Indices 22 Jan : 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 22 Jan : A Fredericksburg 4 Planetary 4 Observed AFr/Ap Indices 21 Jan : A K Fredericksburg 2 Planetary 3 0000 1112

Geomagnetic Forecast

(last updated 22 Jan 2019 23:30 UT)

Date Ap Conditions 23 Jan 15 Unsettled to Active 24 Jan 8 Quiet to Unsettled 25 Jan 8 Quiet to Unsettled COMMENT: SWS Geomagnetic Warning 1 was issued on 20 January and is current for 23 Jan only. Quiet geomagnetic conditions were observed in the Australian region on UT day 22 January. Quiet to Unsettled conditions were observed in the Antarctic regions. Geomagnetic activity is expected to increase to Unsettled to Active levels today (UT day 23 January) in response to the effects of the CIR and subsequent HSS associated with a recurrent coronal hole. Isolated minor storms are also possible on today. UT days 24 and 25 January is expected to be mainly Quiet to Unsettled as the coronal hole effects wane.

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