SIDC Weekly Bulletin

:Issued: 2010 Mar 09 1338 UTC
:Product: documentation at http://www.sidc.be/products/bul
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# SIDC Weekly bulletin on Solar and Geomagnetic activity             #
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WEEK 479 from 2010 Mar 01  

SOLAR ACTIVITY
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Two long duration B-flares occurred this week. The B6.6 flare peaked at 23:06 on Mar 01. The source 
region was at that moment at east limb. The CME was not geoeffective.
A nice EIT-wave accompanied the B5.2 flare of Mar 06 peaking at 15:02UT. A solar tsunami is an on-disk 
signature of a CME. This CME was also directed east ward. 

GEOMAGNETIC ACTIVITY
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Geomagnetic conditions were quiet to unsettled. The solar wind speed stayed below 500  km/s.
Weak coronal signatures could be identified in ACE-data leading to temporary unsettled conditions.
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DAILY INDICES
DATE           RC   EISN  10CM   Ak   BKG    M   X
2010 Mar 01   023    015   78   004   A2.2   0   0
2010 Mar 02   039    024   79   005   A2.2   0   0
2010 Mar 03   ///    024   80   010   A3.4   0   0
2010 Mar 04   044    025   81   008   A6.6   0   0
2010 Mar 05   036    023   80   003   A4.5   0   0
2010 Mar 06   ///    000   78   005   A5.2   0   0
2010 Mar 07   ///    007   77   005   A1.7   0   0
# RC   : Sunspot index (Wolf Number) from Catania Observatory (Italy)
# EISN : Estimated International Sunspot Number
# 10cm : 10.7 cm  radioflux (DRAO, Canada)
# Ak   : Ak Index Wingst (Germany)
# BKG  : Background GOES X-ray level (NOAA, USA)
# M,X  : Number of X-ray flares in M and X class, see below (NOAA, USA)
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NOTICEABLE EVENTS
DAY BEGIN MAX  END  LOC    XRAY OP TENCM TYPE                       Cat NOAA NOTE 

 
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