Weekly Report

(last updated 22 Jun 2017 01:58 UT)

SUBJ: SWS WEEKLY GEOPHYSICAL REPORT ISSUED ON 22 JUNE 2017, BY Space Weather Services, FROM THE AUSTRALIAN SPACE FORECAST CENTRE 1. SUMMARY (13 JUNE - 21 JUNE) 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 13 Jun 2212 1211 5 14 Jun 0112 2100 2 15 Jun 1111 0000 1 16 Jun 1232 5333 15 17 Jun 2312 2232 8 18 Jun 2223 3121 8 19 Jun 1212 2000 3 20 Jun 0111 0000 1 21 Jun 0000 0111 1 *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. 2. FORECAST (22 JUNE - 22 JULY) Disturbed Periods: 8-9 July, 13-15 July. Best Quiet Periods: 1-7 July, 16-22 July. 3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS Northern Australian Regions: Disturbed Periods: none Best Quiet Periods: 1-7 July, 17-22 July Central Australian Regions: Mildly Disturbed Periods: 9-10 July, 14-16 July. Best Quiet Periods: 1-7 July, 17-22 July Southern Australian Regions: Disturbed Periods: 9-10 July, 14-16 July. Best Quiet Periods: 1-7 July, 17-22 July 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.