[Ips-wgr] IPS Weekly Geo. Report (21 September 06)

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 21 SEPTEMBER 2006, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (12 SEPTEMBER - 20 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               
 12 Sep   2222 1011    4     
 13 Sep   1322 2001    5     
 14 Sep   1113 1000    3    
 15 Sep   1110 0000    1    
 16 Sep   1101 0111    2    
 17 Sep   2223 3132    9    
 18 Sep   3334 3233   15    
 19 Sep   3243 3211   11    
 20 Sep   1110 0011    1    

*estimated from real time data

Quiet to unsettled conditions.

2. FORECAST (21 SEPTEMBER - 21 OCTOBER)
Disturbed Periods: 
Active on 22 Sep to 23 Sep, active on 19 Oct.

Best Quiet Periods: 
21 Sep, 26 Sep to 30 Sep, 3 Oct, 5 Oct to 13 Oct.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 21 Sep to 15 Oct.

Central Australian Regions:
 Disturbed Periods: 15 Oct to 16 Oct.
 Best Quiet Periods: 21 Sep to 22 Sep, 26 Sep to 2 Oct, 5 Oct to 6 Oct,  
8 Oct, 10 Oct to 12 Oct.

Southern Australian Regions:
 Disturbed Periods: 15 Oct to 16 Oct.
 Best Quiet Periods: 21 Sep to 22 Sep, 27 Sep to 28 Sep, 2 Oct to 13 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.

IPS Radio and Space Services        email: asfc at ips.gov.au
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Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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