[Ips-wgr] ASWFC Weekly Geo. Report (19 September 24) issued 0140 UT on 19 Sep 2024 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 19 SEPTEMBER 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (10 SEPTEMBER - 18 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               
 10 Sep   2321 1022    6  
 11 Sep   1212 2321    6  In the BOM magnetometer data for 11 
                          Sep, a weak (11nT) impulse was observed 
                          at 1524UT.
 12 Sep   2445 5463   34  In the BOM magnetometer data for 12 
                          Sep, a weak (17nT) impulse was observed 
                          at 0347UT.
 13 Sep   3344 3334   19  
 14 Sep   2234 3122   11  
 15 Sep   2332 3322   11  
 16 Sep   2333 3214   13  In the BOM magnetometer data for 16 
                          Sep, a weak (9nT) impulse was observed 
                          at 0408UT and a weak (11nT) impulse 
                          was observed at 2329UT.
 17 Sep   4535 5323   27  
 18 Sep   3111 2313    8  

*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.


Active on 13 Sep,  17 Sep. Minor storm on 12 Sep.  Quiet to unsettled on other
days.

2. FORECAST (19 SEPTEMBER - 19 OCTOBER)
Disturbed Periods: 
 19 Sep, 25-27 Sep and  14-16 Oct.

Best Quiet Periods: 
 21-23 Sep, 28 Sep - 12 Oct and 18-19 Oct

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 19 Sep - 15 Oct.

Central Australian Regions:
 Disturbed Periods: 14-Oct
 Best Quiet Periods: 19 Sep - 12 Oct and 16-19 Oct

Southern Australian Regions: 
 Disturbed Periods: 13-16 Oct
 Best Quiet Periods: 21-23 Sep, 28 Sep-12 Oct and 18-19 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