[Ips-wgr] IPS Weekly Geo. Report (26 September 13) issued 0253 UT on 26 Sep 2013

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 26 SEPTEMBER 2013, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (17 SEPTEMBER - 25 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               
 17 Sep   2220 2232    7  
 18 Sep   2101 2212    4  
 19 Sep   2233 2122    8  
 20 Sep   1122 2002    4  
 21 Sep   1122 2221    5  
 22 Sep   1120 2101    3  
 23 Sep   1210 0021    2  
 24 Sep   1113 5311   11  
 25 Sep   1221 0011    3  

*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.


Mostly quiet to unsettled conditions. Short periods of active and 
minor geomagnetic storm observed on 24 September.

2. FORECAST (26 SEPTEMBER - 26 OCTOBER)
Disturbed Periods: 
No strong recurrent patterns, however mild activity may be experienced on:
 29 Sep,  10 Oct,  14 Oct,  16 Oct,  21 Oct.

Best Quiet Periods: 
 26-28 Sep,  30 Sep to 9 Oct,  11-13 Oct,  15 Oct,  17-20 Oct,  22 Oct.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: NA

Central Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 26 Sep to 19 Oct,  21-22 Oct.

Southern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 26 Sep to 9 Oct,  11-15 Oct,  17-19 Oct,  21-22 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.

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