[Ips-wgr] IPS Weekly Geo. Report (28 May 15) issued 0228 UT on 28 May 2015

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 28 MAY 2015, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (19 MAY - 27 MAY)
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 May   3222 1111    6  
 20 May   2221 2100    4  
 21 May   0000 0001    0  
 22 May   1100 0000    0  
 23 May   0111 0001    1  
 24 May   1100 0000    0  
 25 May   0010 0000    0  
 26 May   1111 0210    2  
 27 May   0110 2201    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 unsettled conditions.

2. FORECAST (28 MAY - 27 JUNE)
Disturbed Periods: 
29-30 May, 7-9 Jun.

Best Quiet Periods: 
 31 May to 1 Jun,  3-6 Jun,  10-13 Jun,  16-23 Jun.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: None
 Best Quiet Periods: 28 May to 23 Jun.

Central Australian Regions:
 Disturbed Periods: Mildly disturbed on 9-11 Jun, 15 Jun.
 Best Quiet Periods: 28 May to 8 Jun,  12-14 Jun, 16-23 Jun.

Southern Australian Regions:
 Disturbed Periods: 9-11 Jun, 15 Jun.
 Best Quiet Periods: 8 May to 8 Jun,  12-14 Jun, 16-23 Jun.


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.

IPS Radio and Space Services        email: asfc at ips.gov.au
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