[Ips-wgr] IPS Weekly Geo. Report (31 May 07)

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 31 MAY 2007, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (22 MAY - 30 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               
 22 May   1222 2233    8     
 23 May   3445 3235   25     
 24 May   3332 4434   18    
 25 May   2333 3332   13    
 26 May   3334 4322   16    
 27 May   2334 2322   12    
 28 May   2321 1011    5    
 29 May   1111 2111    3    
 30 May   1211 1111    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 Space Environment Research Center, Japan.

Active conditions observed on 23May, 24May and 26May with otherwise
Quiet to Unsettled conditions. Quiet conditions expected for the next
few days with possible Unsettled periods for 02June-04June. 

2. FORECAST (31 MAY - 30 JUNE)
Disturbed Periods: 
active 21 Jun to 22 Jun.

Best Quiet Periods: 
 31 May to 1 Jun,  5 Jun to 13 Jun,  16 Jun to 17 Jun,   19 Jun,  24 Jun to
26 Jun.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions: NA

Central Australian Regions:
 Disturbed Periods: 25 Jun to 26 Jun.
 Best Quiet Periods: 31 May to 2 Jun,  7 Jun to 12 Jun,  17 Jun to 18 Jun.

Southern Australian Regions:
 Disturbed Periods: 20 Jun to 22 Jun.
 Best Quiet Periods: 31 May to 2 Jun,  7 Jun to 13 Jun,   17 Jun,  25 Jun
to 26 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.

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