[Ips-wgr] IPS Weekly Geo. Report (22 November 07)

rwc rwc at ips.gov.au
Thu Nov 22 12:45:50 EST 2007


SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 22 NOVEMBER 2007, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (13 NOVEMBER - 21 NOVEMBER)
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 Nov   3323 3223   12     
 14 Nov   3333 3322   13     
 15 Nov   2222 2222    7    
 16 Nov   2232 2223    9    
 17 Nov   2232 2222    8    
 18 Nov   2211 1212    5    
 19 Nov   2221 1123    6    
 20 Nov   3334 6433   26    A weak (13nT) impulse was observed in 
 the IPS magnetometer data at 0909UT on 20 Nov.
 21 Nov   2334 3222   12    

*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 20 and 21 Nov.
Quiet to unsettled on other days.

2. FORECAST (22 NOVEMBER - 22 DECEMBER)
Disturbed Periods: 
active 17 Dec to 18 Dec.

Best Quiet Periods: 
  24 Nov,  27 Nov to 9 Dec,  12 Dec to 16 Dec.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions: NA

Central Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 25 Nov to 3 Dec,  7 Dec to 10 Dec,   13 Dec.

Southern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 26 Nov to 9 Dec,   13 Dec.

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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