[Ips-wgr] SWS Weekly Geo. Report (05 October 17) issued 0152 UT on 05 Oct 2017 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 05 OCTOBER 2017, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

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   1211 1002    3  
 27 Sep   2243 3344   17  
 28 Sep   3454 4423   24  
 29 Sep   2223 3212    8  
 30 Sep   2232 4322   11  
 01 Oct   2123 2312    8  
 02 Oct   1212 2000    3  
 03 Oct   2221 0101    3  
 04 Oct   1100 1022    2  

*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 Active on 27 Sep and 30 Sep. Quiet to Minor Storm 28 Sep
Quiet to unsettled on other days.

2. FORECAST (05 OCTOBER - 04 NOVEMBER)
Disturbed Periods: 
5-6 Oct, 11-13 Oct,  15 Oct,  24-25 Oct.

Best Quiet Periods: 
 18-23 Oct,  30 Oct.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: Mildly disturbed 5 Oct.
 Best Quiet Periods: 9-11 Oct, 17-23 Oct, 28-31 Oct.

Central Australian Regions:
 Disturbed Periods: Disturbed 5 Oct, Mildly disturbed 6-8 Oct, 12 Oct, 24-27
Oct.
 Best Quiet Periods: 9-11 Oct, 17-23 Oct, 28-31 Oct..

Southern Australian Regions:
 Disturbed Periods: 5-8 Oct, 12 Oct,  24-27 Oct.
 Best Quiet Periods: 9-11 Oct, 17-23 Oct, 28-31 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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