[Ips-wgr] IPS Weekly Geo. Report (01 May 08)

rwc rwc at ips.gov.au
Thu May 1 12:21:18 EST 2008


SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 01 MAY 2008, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (22 APRIL - 30 APRIL)
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               
 22 Apr   1111 1222    4     
 23 Apr   2353 4432   20     
 24 Apr   3344 4122   16    
 25 Apr   2222 2222    7    
 26 Apr   2132 3333   11    
 27 Apr   2233 1412   10    
 28 Apr   2223 3332   11    
 29 Apr   2211 2111    4    
 30 Apr   1111 1341    7    

*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 23 Apr to 24 Apr.
Quiet to unsettled on other days.

2. FORECAST (01 MAY - 31 MAY)
Disturbed Periods: 
Active on 21 May.
Minor storm on 20 May.

Best Quiet Periods: 
 7 May to 8 May,  10 May to 12 May,  15 May to 19 May,   27 May.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS

Northern Australian Regions: NA

Central Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods:  8 May,  14 May to 16 May,  22 May to 24 May.

Southern Australian Regions:
 Disturbed Periods: 4 May to 5 May.
 Best Quiet Periods:  8 May,  14 May to 16 May,  19 May to 23 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.

IPS Radio and Space Services        email: asfc at ips.gov.au
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Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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