[Ips-wgr] SWS Weekly Geo. Report (11 October 18) issued 0052 UT on 11 Oct 2018 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 11 OCTOBER 2018, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (02 OCTOBER - 10 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               
 02 Oct   2220 1011    3  
 03 Oct   1012 0112    3  
 04 Oct   1100 2311    4  
 05 Oct   2222 3112    7  
 06 Oct   2112 1000    2  
 07 Oct   1113 3443   13  
 08 Oct   3333 5321   16  
 09 Oct   1234 3322   12  
 10 Oct   2123 3332   10  

*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 8 Oct.   Quiet to unsettled on other days.

2. FORECAST (11 OCTOBER - 10 NOVEMBER)
Disturbed Periods: 
3-4 Nov.

Best Quiet Periods: 
 15-17 Oct, 27 Oct to 1 Nov.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 16 Oct to 1 Nov.

Central Australian Regions:
 Disturbed Periods: None.
 Mildly Disturbed Periods: 11-12 Oct, 14 Oct, 4-5 Nov, 7-8 Nov, 10 Nov.
 Best Quiet Periods: 16 Oct to 1 Nov.

Southern Australian Regions:
 Disturbed Periods: 11-12 Oct, 14 Oct, 4-5 Nov, 7-8 Nov, 10 Nov.
 Best Quiet Periods: 16 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.

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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