[Ips-wgr] ASWFC Weekly Geo. Report (26 September 24) issued 0452 UT on 26 Sep 2024 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 26 SEPTEMBER 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx


REISSUE	

1. SUMMARY (17 SEPTEMBER - 25 SEPTEMBER)
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               
 17 Sep   4535 5323   27  
 18 Sep   3111 2313    8  
 19 Sep   2223 3421   11  
 20 Sep   1101 0013    3  
 21 Sep   1222 1011    4  
 22 Sep   1112 1201    3  
 23 Sep   1113 4311    9  
 24 Sep   4322 2223   11  In the BOM magnetometer data for 24 
                          Sep, a weak (15nT) impulse was observed 
                          at 0121UT and a weak (9nT) impulse 
                          was observed at 0256UT.
 25 Sep   4333 4433   19  

*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 on 17 Sep,  G0 on other days.

2. FORECAST (26 SEPTEMBER - 26 OCTOBER)
Disturbed Periods: 
26 Sep, 10-Oct, 21-23 Oct.

Best Quiet Periods: 
 30 Sep to 7 Oct, 18 Oct

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: None.
 Mildly Disturbed Periods: None.
 Best Quiet Periods: 30-Sep to 7 Oct, 17-19 Oct.

Central Australian Regions:
 Disturbed Periods: None.
 Mildly Disturbed Periods: 26-Sep, 22-21 Oct.
 Best Quiet Periods: 30-Sep to 7 Oct, 18 Oct.

Southern Australian Regions: 
 Disturbed Periods: None.
 Mildly Disturbed Periods: 26-Sep, 10 Oct, 21-23 Oct.
 Best Quiet Periods: 30-Sep to 7-Oct, 18 Oct.


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.

Australian Space Weather Forecasting Centre
Bureau of Meteorology
ASWFC at bom.gov.au
www.bom.gov.au | www.sws.bom.gov.au