:Issued: 2010 Jan 19 1035 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 472 from 2010 Jan 11
SOLAR ACTIVITY
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Solar activity was low to moderately active with the transit of
NOAA AR 1040, which was about 20 degrees east of the central
meridian on Jan. 11th. It produced 3 C-flares during the week.
GEOMAGNETIC ACTIVITY
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Geomagnetic activity was extremely low during the whole week.
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DAILY INDICES
DATE RC EISN 10CM Ak BKG M X
2010 Jan 11 /// 024 91 007 B1.0 0 0
2010 Jan 12 049 021 93 004 B1.1 0 0
2010 Jan 13 /// 022 91 008 A9.0 0 0
2010 Jan 14 032 020 90 005 B1.0 0 0
2010 Jan 15 /// 017 85 007 B1.4 0 0
2010 Jan 16 032 016 84 001 B1.0 0 0
2010 Jan 17 /// 011 83 001 B1.1 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 #
