[Ips-wgr] ASWFC Weekly Geo. Report (05 October 23) issued 0200 UT on 05 Oct 2023 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 05 OCTOBER 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (26 SEPTEMBER - 04 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               
 26 Sep   2334 5332   18  
 27 Sep   3334 3321   14  
 28 Sep   2111 0002    2  
 29 Sep   1124 2101    6  
 30 Sep   2222 3232    9  
 01 Oct   2121 2012    4  
 02 Oct   1222 1112    5  
 03 Oct   1211 2211    4  
 04 Oct   2222 1212    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.


Active on 26 Sep.   Quiet to unsettled on other days.

2. FORECAST (05 OCTOBER - 04 NOVEMBER)
Disturbed Periods: 
 9-11 Oct,  14-16 Oct,  19-20 Oct, 3-4 Nov.

Best Quiet Periods: 
 13-Oct, 18-Oct 21-Oct to 1-Nov.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 5-Oct to 4-Nov.

Central Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 5-Oct to 4-Nov.

Southern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 13-Oct, 18-Oct 21-Oct to 1-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.

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