[Ips-wgr] IPS Weekly Geo. Report (03 May 07)

rwc rwc at ips.gov.au
Thu May 3 12:21:25 EST 2007


SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 03 MAY 2007, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (24 APRIL - 02 MAY)
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               
 24 Apr   2212 1111    4     
 25 Apr   2221 2211    5     
 26 Apr   2212 2212    6    
 27 Apr   3223 3333   13    
 28 Apr   3345 4433   23    
 29 Apr   2343 3322   13    
 30 Apr   3343 2311   12    
 01 May   2231 2122    7    
 02 May   2111 1101    3    

*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.


The active levels observed 28-30 April due to a coronal hole
solar wind stream. Mostly quiet to unsettled on other days.

2. FORECAST (03 MAY - 02 JUNE)
Disturbed Periods: 6-10 & 24-27 May.

Best Quiet Periods: 11-23 May.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions: NA

Central Australian Regions:
 Disturbed Periods: 6-10 & 23-26 May.
 Best Quiet Periods: 11-19 May, 28-29 May.

Southern Australian Regions:
 Disturbed Periods: 6-10 & 25-26 May.
 Best Quiet Periods: 3-5 May, 11-21 May, 28-29 May.

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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