[Ips-wgr] SWS Weekly Geo. Report (14 September 17) issued 0343 UT on 14 Sep 2017 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 14 SEPTEMBER 2017, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (05 SEPTEMBER - 13 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               
 05 Sep   3222 1221    7  
 06 Sep   1222 2103    6  In the SWS magnetometer data for 06 
                          Sep, a weak (10nT) impulse was observed 
                          at 2344UT.
 07 Sep   2344 2126   21  
 08 Sep   5443 6543   35  In the SWS magnetometer data for 08 
                          Sep, a weak (13nT) impulse was observed 
                          at 0537UT and a weak (20nT) impulse 
                          was observed at 0709UT.
 09 Sep   2110 1001    2  
 10 Sep   1100 0013    3  
 11 Sep   3322 3222   10  
 12 Sep   2222 3233   10  In the SWS magnetometer data for 12 
                          Sep, a weak (12nT) impulse was observed 
                          at 2005UT.
 13 Sep   4343 2110   12  

*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 7 Sep. Minor storm on 8 Sep.  Quiet to unsettled on other days.

2. FORECAST (14 SEPTEMBER - 14 OCTOBER)
Disturbed Periods: 
14-16 Sep,  27-29 Sep,  10 Oct.

Best Quiet Periods: 
 17-26 Sep,  30 Sep - 9 Oct.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 17 Sep to 9 Oct.

Central Australian Regions:
 Moderately Disturbed Periods: 15 - 18 Sep, 4 - 5 Oct 
 Best Quiet Periods: 19 Sep - 3 Oct, 6 - 14 Oct.

Southern Australian Regions:
 Disturbed Periods: 15 - 18 Sep, 4 - 5 Oct 
 Best Quiet Periods: 19 Sep - 3 Oct, 6 - 14 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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