[Ips-wgr] IPS Weekly Geo. Report (17 February 11)

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 17 FEBRUARY 2011, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (08 FEBRUARY - 16 FEBRUARY)
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               
 08 Feb   2211 0112    4     
 09 Feb   2111 1201    3     
 10 Feb   1222 2112    5    
 11 Feb   2201 1132    5    
 12 Feb   2221 2111    5    
 13 Feb   2111 1111    3    
 14 Feb   1111 1345   13   
 15 Feb   3223 3222   10    
 16 Feb   2121 1001    3    

A weak (17nT) impulse was observed in the IPS magnetometer data at 1556UT
on 14 Feb

*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 observed over the last week. Active
conditions with Minor Storm levels beginning late in the
UT day on 17Feb through to 19Feb due to the arrival of the 15Feb 
X2.2 flare CME. Quiet to Unsettled conditions with possible Active
periods for the remainder of the forecast week.

2. FORECAST (17 FEBRUARY - 19 MARCH)
Disturbed Periods: 17 Feb - 19 Feb, 3 Mar - 5 Mar.

Best Quiet Periods: 
 20 Feb to 27 Feb,  1 Mar to 2 Mar,  6 Mar to 12 Mar,  14 Mar to
15 Mar.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions: Expect Mostly Quiet, possible 
Mildly Disturbed on 17 Feb - 19 Feb.

Central Australian Regions:
 Disturbed Periods: Mildly Disturbed 17 Feb - 19 Feb.
 Best Quiet Periods: 20 Feb  to 25 Feb.

Southern Australian Regions:
 Disturbed Periods: 17 Feb - 19 Feb.
 Best Quiet Periods: 20 Feb to 25 Feb.

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"