[Ips-wgr] IPS Weekly Geo. Report (27 December 07)

[Regional Warning Centre]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 27 DECEMBER 2007, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (18 DECEMBER - 26 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               
 18 Dec   2334 4323   16     
 19 Dec   2232 2222    8     
 20 Dec   2332 3432   13    
 21 Dec   3323 2322   11    
 22 Dec   2222 3222    8    
 23 Dec   2223 2212    7    
 24 Dec   2211 1112    4    
 25 Dec   1111 1001    2    
 26 Dec   1112 2112    4    

*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.


active on 18 Dec.
quiet to unsettled on other days.

2. FORECAST (27 DECEMBER - 26 JANUARY)
Disturbed Periods: 
active 13 Jan to 14 Jan.

Best Quiet Periods: 
 27 Dec to 5 Jan,  8 Jan to 12 Jan,  18 Jan to 22 Jan.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions: NA

Central Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 27 Dec to 7 Jan,  15 Jan to 16 Jan.

Southern Australian Regions:
 Disturbed Periods:  10 Jan.
 Best Quiet Periods: 27 Dec to 7 Jan,  14 Jan to 17 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.

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