[Ips-wgr] SWS Weekly Geo. Report (19 September 19) issued 0430 UT on 19 Sep 2019

[Regional Warning Centre]

SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 19 SEPTEMBER 2019, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

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   1112 3000    3  
 11 Sep   0122 1100    2  
 12 Sep   1112 1211    4  
 13 Sep   2221 2111    5  
 14 Sep   1221 1022    4  
 15 Sep   1222 1122    5  
 16 Sep   2311 1221    6  
 17 Sep   2121 0023    5  
 18 Sep   2122 3111    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.


Quiet to unsettled conditions.

2. FORECAST (19 SEPTEMBER - 19 OCTOBER)
Disturbed Periods: 
28-29 Sep.

Best Quiet Periods: 
 20-22 Sep,  24-25 Sep,  27 Sep,  4 Oct,  7-9 Oct,  11-12 Oct,  15 Oct.

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

Central Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 19 Sep to 15 Oct.

Southern Australian Regions:
 Disturbed Periods: 27-28 Sep.
 Best Quiet Periods: 19-26 Sep,  2-9 Oct,  11 Oct,  14-15 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.

Space Weather Services              email: asfc at bom.gov.au
Bureau of Meteorology
PO Box 1386                         WWW: http://www.sws.bom.gov.au
Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp-out.sws.bom.gov.au
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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