[Ips-wgr] IPS Weekly Geo. Report (21 June 07)

rwc rwc at ips.gov.au
Thu Jun 21 13:48:40 EST 2007


SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 21 JUNE 2007, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (12 JUNE - 20 JUNE)
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 Jun   1111 1011    2     
 13 Jun   1112 2221    5     
 14 Jun   3334 3332   15    
 15 Jun   2222 2211    6    
 16 Jun   1312 3211    7    
 17 Jun   2222 3111    6    
 18 Jun   1211 1221    4    
 19 Jun   2222 2111    5    
 20 Jun   2122 1101    4    

Slightly elevated activity observed on 14 June due to coronal hole
solar wind stream, otherwise mostly quiet conditions were observed.

*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.


Quiet to unsettled conditions.

2. FORECAST (21 JUNE - 21 JULY)
Disturbed Periods: 
Active levels possible 21 June and 18-19 July.

Best Quiet Periods: 
 24 June to 10 July.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions: NA

Central Australian Regions:
 Disturbed Periods:  22-23 June, 11 July.
 Best Quiet Periods: 25 June to 10 July.

Southern Australian Regions:
 Disturbed Periods:  22-23 June.
 Best Quiet Periods: 25 June to 9 July.

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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