Weekly Report

(last updated 10 Oct 2019 02:02 UT)

SUBJ: SWS WEEKLY GEOPHYSICAL REPORT ISSUED ON 10 OCTOBER 2019, BY Space Weather Services, FROM THE AUSTRALIAN SPACE FORECAST CENTRE 1. SUMMARY (01 OCTOBER - 09 OCTOBER) 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 01 Oct 2223 1101 5 02 Oct 2003 3111 5 03 Oct 1111 0011 2 04 Oct 1232 2211 6 05 Oct 1112 2212 5 06 Oct 1221 1201 4 07 Oct 1001 2322 5 08 Oct 1111 1111 3 09 Oct 1123 2212 6 *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 (10 OCTOBER - 09 NOVEMBER) Disturbed Periods: 24-25 Oct. Best Quiet Periods: 10 Oct, 15-17 Oct, 19-20 Oct, 22-23 Oct, 29 Oct to 4 Nov. 3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS Northern Australian Regions: Disturbed Periods: None. Best Quiet Periods: 10-24 Oct, 27 Oct to 6 Nov. Central Australian Regions: Disturbed Periods: Mildly disturbed 25-26 Oct. Best Quiet Periods: 10-24 Oct, 27 Oct to 6 Nov. Southern Australian Regions: Disturbed Periods: 25-26 Oct. Best Quiet Periods: 10-24 Oct, 27 Oct to 6 Nov. 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.