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HomeGeophysicalSummary and ForecastsDaily Report Tuesday, Dec 12 2017 23:29 UT
Summary and Forecasts

Daily Report

Geomagnetic Summary

(last updated 11 Dec 2017 23:30 UT)

Geomagnetic field for Australian Region 11 Dec: Quiet to Unsettled Estimated Indices 11 Dec : A K Australian Region 8 12233221 Cocos Island 8 01223331 Darwin 8 12233221 Townsville 9 12333222 Learmonth 10 12333321 Alice Springs 7 11233221 Norfolk Island 7 12223222 Gingin 10 11333331 Camden 8 12233221 Canberra 5 11222211 Launceston 11 22333322 Hobart 10 22333321 Estimated Antarctic Regional K Indices 11 Dec : Macquarie Island 11 01245210 Casey 18 34433333 Mawson 14 33334322 Davis 19 33453332 Observed Regional daily pc3 Indices 11 Dec : Darwin 0 (Quiet) Townsville 0 (Quiet) Learmonth 0 (Quiet) Alice Springs 0 (Quiet) Gingin 0 (Quiet) Canberra 2 (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 11 Dec : A Fredericksburg 11 Planetary 13 Observed AFr/Ap Indices 10 Dec : A K Fredericksburg 2 Planetary 2 0110 0001

Geomagnetic Forecast

(last updated 11 Dec 2017 23:30 UT)

Date Ap Conditions 12 Dec 12 Unsettled 13 Dec 12 Unsettled 14 Dec 14 Unsettled to Active COMMENT: Magnetic conditions were mostly at quiet to unsettled levels across the Australian region during the UT day, 11 December. The disturbed magnetic conditions are in response to the moderately elevated solar winds emanating from the positive polarity coronal hole. For 12 December, the magnetic activity is expected to be mostly at quiet to unsettled levels because the high speed streams from the coronal hole persist.

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