[Ips-wgr] IPS Weekly Geo. Report (25 December 14) issued 0119 UT on 25 Dec 2014

rwc rwc at ips.gov.au
Thu Dec 25 12:19:33 EST 2014


SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 25 DECEMBER 2014, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (16 DECEMBER - 24 DECEMBER)
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               
 16 Dec   2212 3122    7  
 17 Dec   2211 0222    5  
 18 Dec   2221 2223    7  
 19 Dec   2121 1223    6  
 20 Dec   3221 2212    7  
 21 Dec   1222 2233    8  In the IPS magnetometer data for 21 
                          Dec, a weak (10nT) impulse was observed 
                          at 1912UT.
 22 Dec   3322 2322   10  In the IPS magnetometer data for 22 
                          Dec, a weak (11nT) impulse was observed 
                          at 1511UT.
 23 Dec   2126 2224   18  In the IPS magnetometer data for 23 
                          Dec, a weak (49nT) impulse was observed 
                          at 1115UT.
 24 Dec   4222 3232   11  

*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 International Center for Space Weather 
Science and Education, Japan.


Active on 23 Dec.   Quiet to unsettled on other days.

2. FORECAST (25 DECEMBER - 24 JANUARY)
Disturbed Periods: 
25 Dec,  3 Jan.

Best Quiet Periods: 
 30 Dec,  6-7 Jan,  9 Jan,  12-16 Jan,  20 Jan.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 28 Dec to 12 Jan.

Central Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 28 Dec to 1 Jan,  6-12 Jan.

Southern Australian Regions:
 Disturbed Periods: 25 Dec, 2-5 Jan.
 Best Quiet Periods: 28 Dec to 1 Jan,  6-12 Jan.


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
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