:Issued: 2010 Mar 16 1315 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 480 from 2010 Mar 08
SOLAR ACTIVITY
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Solar activity was low during the full week. The visible disc was spotless on March 9 and 10, on March 11 two active regions became visible (NOAA AR 11054 and 11055, Catania 52 and 51 respectively). AR 11055 did not produced any activity, AR 11054 produced a C2.3 flare on March 12 and a C1.3 on March 14. An Earth directed CME erupted from this AR on March 14, it should arrive to the Earth around March 17. Three more limb CMEs were seen between March 11 and 13 but did not arrive to the Earth.
GEOMAGNETIC ACTIVITY
-------------------
Geomagnetic conditions were quiet to unsettled the whole week with only one active period (kp=4) on March 10, due to a fast wind stream.
:Product: documentation at http://www.sidc.be/products/bul
#--------------------------------------------------------------------#
# SIDC Weekly bulletin on Solar and Geomagnetic activity #
#--------------------------------------------------------------------#
WEEK 480 from 2010 Mar 08
SOLAR ACTIVITY
-------------
Solar activity was low during the full week. The visible disc was spotless on March 9 and 10, on March 11 two active regions became visible (NOAA AR 11054 and 11055, Catania 52 and 51 respectively). AR 11055 did not produced any activity, AR 11054 produced a C2.3 flare on March 12 and a C1.3 on March 14. An Earth directed CME erupted from this AR on March 14, it should arrive to the Earth around March 17. Three more limb CMEs were seen between March 11 and 13 but did not arrive to the Earth.
GEOMAGNETIC ACTIVITY
-------------------
Geomagnetic conditions were quiet to unsettled the whole week with only one active period (kp=4) on March 10, due to a fast wind stream.
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DAILY INDICES
DATE RC EISN 10CM Ak BKG M X
2010 Mar 08 /// 007 76 003 A1.6 0 0
2010 Mar 09 /// 000 78 004 A1.7 0 0
2010 Mar 10 000 000 80 014 A3.2 0 0
2010 Mar 11 032 021 84 012 A4.2 0 0
2010 Mar 12 /// 024 90 011 A6.7 0 0
2010 Mar 13 /// 019 92 005 A6.5 0 0
2010 Mar 14 /// 022 89 007 A6.0 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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# Solar Influences Data analysis Center - RWC Belgium #
# Royal Observatory of Belgium #
# Fax : 32 (0) 2 373 0 224 #
# Tel.: 32 (0) 2 373 0 491 #
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