[Ips-wgr] IPS Weekly Geo. Report (26 April 01)

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 26 APRIL 2001, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (17 APRIL - 25 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               
 17 Apr   1212 1222    5        
 18 Apr   5553 2214   25       
 19 Apr   2212 2113    6      
 20 Apr   2211 2101    4     
 21 Apr   1101 2323    6    
 22 Apr   4233 3534   21           
 23 Apr   3233 2113   10           
 24 Apr   2232 1113    7
 25 Apr   2012 2222    5

*estimated from real time data

Storm periods observed on 18 and 22 April were associated with
CME's impacting the Earth. 

2. FORECAST (26 APRIL - 26 MAY)
Disturbed Periods: Large active solar regions are resulting
in relative increased levels of geomagnetic activity which
are expected to continue throughout most of the forecast period.
 
Best Quiet Periods: 13-18 May. 


PEASE NOTE:  
At this time of the solar cycle, space weather conditions 
are frequently determined by short timescale events, not 
able to be forecasted a week in advance. 

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/users/asfc/ 
tel: +61 2 9213 8010              | fax: +61 2 9213 8060