[Ips-wgr] IPS Weekly Geo. Report (25 September 08)

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 25 SEPTEMBER 2008, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (16 SEPTEMBER - 24 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               
 16 Sep   1333 2211    8     
 17 Sep   2211 0001    2     
 18 Sep   1233 2101    6    
 19 Sep   1121 2121    4    
 20 Sep   1211 1101    3    
 21 Sep   1110 0212    3    
 22 Sep   2210 0111    3    
 23 Sep   1121 1001    2    
 24 Sep   1111 2001    2    

Mostly quiet conditions observed during past week.


*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 Space Environment Research Center, Japan.

2. FORECAST (25 SEPTEMBER - 25 OCTOBER)
Disturbed Periods: 
active on 1 Oct.

Best Quiet Periods: 25-30 Sep, 6-11 Oct, 16-21 Oct.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions: NA

Central Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 26 Sep to 1 Oct,  5 Oct to 20 Oct.

Southern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 25 Sep to 1 Oct,  5 Oct to 20 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.

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