Weekly Report

(last updated 20 Jan 2022 02:34 UT)

SUBJ: SWS WEEKLY GEOPHYSICAL REPORT ISSUED ON 20 JANUARY 2022, BY Space Weather Services, FROM THE AUSTRALIAN SPACE FORECAST CENTRE 1. SUMMARY (11 JANUARY - 19 JANUARY) 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 11 Jan 1201 2201 3 12 Jan 1211 1112 4 13 Jan 1101 0012 2 14 Jan 1122 2245 13 15 Jan 3332 3334 15 16 Jan 3222 3233 11 17 Jan 3222 2322 9 18 Jan 3222 3322 10 19 Jan 3433 3123 14 In the SWS magnetometer data for 19 Jan, a weak (9nT) impulse was observed at 0627UT. *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 (20 JANUARY - 19 FEBRUARY) Disturbed Periods: No strong recurrent patterns, however mild activity may be experienced on: 23 Jan, 30 Jan, 4 Feb, 11-15 Feb. Best Quiet Periods: 24-27 Jan, 31 Jan to 3 Feb, 6-9 Feb. 3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS Northern Australian Regions: Disturbed Periods: None. Best Quiet Periods: 20-27 Jan, 1-11 Feb. Central Australian Regions: Mildly disturbed Periods: 28-30 Jan, 12-15 Feb. Best Quiet Periods: 20-27 Jan, 1-11 Feb Southern Australian Regions: Disturbed Periods: 28-30 Jan, 12-15 Feb. Best Quiet Periods: 20-27 Jan 1-11 Feb. 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.