:Issued: 2009 Apr 09 1132 UTC
:Product: documentation at http://www.sidc.be/products/meu
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# DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC     #
# (RWC Belgium)                                                      #
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SIDC URSIGRAM 90409
SIDC SOLAR BULLETIN 09 Apr 2009, 1121UT
SIDC FORECAST (valid from 1230UT, 09 Apr 2009 until 11 Apr 2009)
SOLAR FLARES  : Quiet conditions (<50% probability of C-class flares)
GEOMAGNETISM  : Quiet (A<20 and K<4)
SOLAR PROTONS : Quiet
PREDICTIONS FOR 09 Apr 2009  10CM FLUX: 070 / AP: 021
PREDICTIONS FOR 10 Apr 2009  10CM FLUX: 070 / AP: 015
PREDICTIONS FOR 11 Apr 2009  10CM FLUX: 069 / AP: 004
COMMENT: Solar activity remains very low. A slow CME was seen on the
western solar limb on LASCO-C2 data, starting at 21:54 UT on April 7, it
is not expected to be geoeffective. The fast solar wind from the coronal
hole arrived to Earth as expected, Kp reached 4 for one 3h period. The
solar wind speed measured by ACE is 450 km/s at the moment. The
geomagnetic conditions will remain unsettled today and tomorrow, with
possible active periods, and should go back to mostly quiet levels on
April 11.



TODAY'S ESTIMATED ISN  : 000, BASED ON 16 STATIONS.

SOLAR INDICES FOR 8 Apr 2009
WOLF NUMBER CATANIA    : 000
10CM SOLAR FLUX        : 070
AK CHAMBON LA FORET    : ///
AK WINGST              : 010
ESTIMATED AP           : 008
ESTIMATED ISN          : 000, BASED ON 23 STATIONS.

NOTICEABLE EVENTS SUMMARY
DAY BEGIN MAX  END  LOC    XRAY OP  10CM RADIO BURST TYPES     Catania NOAA NOTE
NONE
END
BT
 
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