[Ips-wgr] IPS Weekly Geo. Report (18 September 08)

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 18 SEPTEMBER 2008, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (09 SEPTEMBER - 17 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               
 09 Sep   2221 1012    4     
 10 Sep   2221 1111    4     
 11 Sep   2110 1112    3    
 12 Sep   1110 0000    1    
 13 Sep   1211 0000    2    
 14 Sep   1111 1123    5    
 15 Sep   2233 4221   11    
 16 Sep   1333 2211    8    
 17 Sep   2211 0001    2    

*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.


Upto active conditions on 15 and unsettled on 14 and 16 September
observed duet to the effect of high speed solar wind stream from 
a recurrent coronal hole. Mostly quiet conditions observed on the 
other days in this period.

2. FORECAST (18 SEPTEMBER - 18 OCTOBER)
Disturbed Periods: 
Active on 01 Oct.

Best Quiet Periods: 
 18 Sep to 30 Sep,  02 Oct to 03 Oct,  06 Oct to 11 Oct,  
 and 14 Oct to 18 Oct.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions: NA

Central Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 18 Sep to 1 Oct,  5 Oct to 14 Oct.

Southern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 18 Sep to 1 Oct,  6 Oct to 14 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.

PLEASE NOTE:
Geomagnetic activity can frequently be determined by short timescale 
solar events that cannot be forecast a week in advance, particularly
at solar maximum.

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 

IMPORTANT: This e-mail, including any attachments, may contain,
confidential or copyright information.  The views expressed in 
this message are those of the individual sender, unless 
specifically stated to be the views of IPS.  If you are not 
the intended recipient, please contact the sender immediately 
and delete all copies of this e-mail and attachments. 
Occasionally IPS sends email promoting IPS products and 
services to its mailing list customers. If you do not wish to 
receive this promotional material please email 
no-spam at ips.gov.au with the subject header:UNSUBSCRIBE"