[Ips-wgr] SWS Weekly Geo. Report (12 October 17) issued 0235 UT on 12 Oct 2017 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 12 OCTOBER 2017, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (03 OCTOBER - 11 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               
 03 Oct   2221 0101    3  
 04 Oct   1100 1022    2  
 05 Oct   2110 0123    4  
 06 Oct   2221 1211    5  
 07 Oct   1101 1112    3  
 08 Oct   1210 0001    2  
 09 Oct   1100 0001    1  
 10 Oct   1001 0002    1  
 11 Oct   22443433     17

*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 11 Oct. Quiet to unsettled on other days.

2. FORECAST (12 OCTOBER - 11 NOVEMBER)
Disturbed Periods: 
12-14 Oct,  24-25 Oct.

Best Quiet Periods: 
 18-23 Oct, 30 Oct to 3 Nov.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 18-23 Oct,  30 Oct to 3 Nov.

Central Australian Regions:
 Mildly disturbed Periods: 12-14 Oct, 24-26 Oct.
 Best Quiet Periods: 18-23 Oct, 30 Oct to 3 Nov.

Southern Australian Regions:
 Disturbed Periods: 12-14 Oct, 24-26 Oct.
 Best Quiet Periods: 18-23 Oct, 30 Oct to 3 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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