[Ips-wgr] ASWFC Weekly Geo. Report (26 October 23) issued 0035 UT on 26 Oct 2023 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 26 OCTOBER 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (17 OCTOBER - 25 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               
 17 Oct   1100 0023    3  
 18 Oct   0223 3322    9  
 19 Oct   2223 1111    6  
 20 Oct   1112 3222    6  
 21 Oct   1233 2311    8  
 22 Oct   1112 1231    5  
 23 Oct   1100 1001    1  
 24 Oct   2101 1122    4  
 25 Oct   1100 2112    3  

*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 (26 OCTOBER - 25 NOVEMBER)
Disturbed Periods: 
17 Nov.

Best Quiet Periods: 
 28-31 Oct,  4-8 Nov,  10-13 Nov,  18-25 Nov.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: 

Disturbed Periods: none.
Mildly disturbed periods: none.
Best quiet periods: 26-Oct to 15 Nov.

Central Australian Regions: 
Disturbed periods: none.
Mildly disturbed periods: none.
Best quiet periods: 26-Oct to 25-Nov

Southern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 28-31 Oct, 4-8 Nov, 10-13 Nov, 18-25 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