Weekly Report

(last updated 02 Apr 2020 02:48 UT)

SUBJ: SWS WEEKLY GEOPHYSICAL REPORT ISSUED ON 02 APRIL 2020, BY Space Weather Services, FROM THE AUSTRALIAN SPACE FORECAST CENTRE 1. SUMMARY (24 MARCH - 01 APRIL) K indices are in UT (0-24). For conversion to local time: AEST = UT + 10 hours; ACST = UT + 9.5 hours; AWST = UT + 8 hours Australian Region* Date K-INDICES A 24 Mar 2010 1000 1 25 Mar 2001 1001 2 26 Mar 1111 2202 4 27 Mar 1100 2220 3 28 Mar 0122 1012 3 29 Mar 1122 3310 6 30 Mar 1111 2332 7 31 Mar 2232 2321 8 01 Apr 1210 0211 3 *estimated from real time 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. Quiet to Unsettled conditions observed over the previous week. Similar conditions are expected for the next 7 days with possible enhanced solar wind speeds due to coronal hole effects 05Apr-06Apr. 2. FORECAST (02 APRIL - 02 MAY) Disturbed Periods: No strong recurrent patterns, however mild activity may be experienced on: 15 Apr, 17-19 Apr, 26-27 Apr. Best Quiet Periods: 2-14 Apr, 16 Apr, 20-25 Apr, 28 Apr. 3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS Northern Australian Regions: Quiet Central Australian Regions: Quiet Southern Australian Regions: Quiet 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. PLEASE NOTE: Geomagnetic activity can frequently be determined by short timescale solar events that cannot be forecast a week in advance, particularly at solar maximum.