[Ips-wgr] SWS Weekly Geo. Report (28 February 19) issued 0144 UT on 28 Feb 2019 [SEC=UNCLASSIFIED]

[rwc]

SUBJ: SWS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 28 FEBRUARY 2019, BY Space Weather Services,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (19 FEBRUARY - 27 FEBRUARY)
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               
 19 Feb   1110 0100    1  
 20 Feb   1110 1212    3  
 21 Feb   2232 2212    7  
 22 Feb   1111 1101    2  
 23 Feb   0110 0111    1  
 24 Feb   1110 1000    1  
 25 Feb   1100 0001    1  
 26 Feb   0001 0101    1  
 27 Feb   0011 3323    7  

*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 (28 FEBRUARY - 30 MARCH)
Disturbed Periods: 
28 Feb.

Best Quiet Periods: 
 3-10 Mar,  14-18 Mar,  21-25 Mar.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: 
Disturbed periods: None.
Best Quiet periods:3-11 Mar, 14-18 Mar, 21-25 March

Central Australian Regions: 
Mildly disturbed: 28 Feb-2 Mar.
Best Quiet periods: 3-11 Mar, 14-18 Mar, 21-25 Mar.

Southern Australian Regions:
 Disturbed Periods: 28 Feb- 2 Mar.
 Best Quiet Periods: 3-11 Mar, 14-18 Mar, 21-25 Mar.


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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