Weekly Report
(last updated 09 May 2024 01:50 UT)
SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT ISSUED ON 09 MAY 2024 FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx 1. SUMMARY (30 APRIL - 08 MAY) 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 30 Apr 2211 2333 9 In the BOM magnetometer data for 30 Apr, a weak (10nT) impulse was observed at 1225UT. 01 May 2221 0121 4 02 May 2223 4553 21 In the BOM magnetometer data for 02 May, a weak (12nT) impulse was observed at 1408UT. 03 May 3212 0012 5 04 May 1110 1112 3 05 May 2122 0123 6 06 May 4233 2211 10 07 May 2211 1211 4 08 May 2122 1101 4 *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. G1 geomagnetic conditions were observed in the Australian region on 02-May due to a CME arrival. G0 geomagnetic conditions were observed on all other days. 2. FORECAST (09 MAY - 08 JUNE) Disturbed Periods: 10-11 May, 23 May, 27 May to 02 Jun. Best Quiet Periods: 12-15 May, 19-22 May, 25-26 May, 3-8 Jun. 3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS Northern Australian Regions: NA Central Australian Regions: NA Southern Australian Regions: Disturbed Periods: 3 Jun. Best Quiet Periods: 9 May to 01 Jun, 5-8 Jun. 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.
