[Ips-wgr] IPS Weekly Geo. Report (25 April 02)

rwc rwc at ips.gov.au
Thu Apr 25 11:42:43 EST 2002


SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 25 APRIL 2002, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (16 APRIL - 24 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               
 16 Apr   2231 0023    6     
 17 Apr   2225 5544   27    A moderate (63nT) impulse was observed in the IPS
magnetomter data at 1107UT on 17 Apr. 
 18 Apr   5444 4544   32    A weak (25nT) impulse was observed in the IPS
magnetomter data at 1139UT on 18 Apr.
 19 Apr   4455 4555   40    A weak (23nT) impulse was observed in the IPS
magnetomter data at 0836UT on 19 Apr.
 20 Apr   5544 3434   29    
 21 Apr   3221 1123    7    
 22 Apr   3323 2222   10    
 23 Apr   2553 3423   22    A moderate (64nT) impulse was observed in the IPS
magnetomter data at 0449UT on 23 Apr.
 24 Apr   2222 2223    8    

*estimated from real time data

Active to minor storm levels observed during 18 - 20 April due to CME observed on 17 April/0824UT .

2. FORECAST (25 APRIL - 25 MAY)
Disturbed Periods: 
27 - 29 April,
25 - 25 May.

Best Quiet Periods: 
1 - 3 May,
5 - 7 May,
12, 13 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
PO Box 1386                       | WWW: http://www.ips.gov.au/asfc
Haymarket NSW 1240  AUSTRALIA     | FTP: ftp://ftp.ips.gov.au/users/asfc/ 
tel: +61 2 9213 8010              | fax: +61 2 9213 8060 




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