[Ips-wgr] IPS Weekly Geo. Report (22 June 06)

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 22 JUNE 2006, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (13 JUNE - 21 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               
 13 Jun   1111 1111    3     
 14 Jun   2121 2223    7     
 15 Jun   3334 4323   17 A weak (20nT) impulse was observed in the IPS
                         magnetometer data at 1414UT on 15 Jun.
 16 Jun   2222 2222    7    
 17 Jun   2233 2211    8    
 18 Jun   1233 1111    6    
 19 Jun   2110 0001    2    
 20 Jun   1111 1001    2    
 21 Jun   0100 0101    1    

*estimated from real time data

active on 15 Jun.
quiet to unsettled on other days.

2. FORECAST (22 JUNE - 22 JULY)
Disturbed Periods: 
active 4 Jul to 5 Jul, active on 12 Jul.

Best Quiet Periods: 
 22 Jun to 25 Jun,  30 Jun to 2 Jul,  8 Jul to 11 Jul,  16 Jul to 17 Jul.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 22 Jun to 18 Jul.

Central Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 22 Jun to 27 Jun,  30 Jun to 2 Jul,  5 Jul to 9 Jul, 
                     13 Jul to 18 Jul.

Southern Australian Regions:
 Disturbed Periods: 3 Jul to 4 Jul.
 Best Quiet Periods: 22 Jun to 27 Jun,   1 Jul,  6 Jul to 10 Jul,  16 Jul
                     to 18 Jul.

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
PO Box 1386                         WWW: http://www.ips.gov.au
Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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