:Issued: 2004 Oct 18 1337 UTC
:Product: documentation at http://sidc.oma.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 41018
SIDC SOLAR BULLETIN 18 Oct 2004, 1240UT
SIDC FORECAST (valid from 1230UT, 18 Oct 2004 until 20 Oct 2004)
SOLAR FLARES : Quiet conditions (<50% probability of C-class flares)
GEOMAGNETISM : Quiet (A<20 and K<4)
SOLAR PROTONS : Quiet
PREDICTIONS FOR 18 Oct 2004 10CM FLUX: 093 / AP: 009
PREDICTIONS FOR 19 Oct 2004 10CM FLUX: 094 / AP: 007
PREDICTIONS FOR 20 Oct 2004 10CM FLUX: 095 / AP: 007
COMMENT: Solar background x-radiation is slowly increasing. This increase is
caused by the growing of sunspot group 42 grew in area and complexity and the
appearance of 3 new spots (with Catania numbering). The sunspot group next to
number 39 (NOAA 0682), popped up on Oct 17 and grew very fast to a
beta-configuration. Flaring activity is still low, but the increasing tendency
is expected to go on. Solar wind speed is really low: 300 km/s, the
interplanetary magnetic field is below 5nT and has a mostly positive and small
B_z component resulting in K_p indices of 0 and 1.
SOLAR INDICES FOR 17 Oct 2004
SUNSPOT INDEX : 083
10CM SOLAR FLUX : 092
AK CHAMBON LA FORET : 004
AK WINGST : ///
ESTIMATED AP : 002
NOTICEABLE EVENTS SUMMARY
DAY BEGIN MAX END LOC XRAY OP 10CM RADIO BURST TYPES Catania NOAA
NOTE
NONE
73,
Thomas F. Giella, KN4LF
Retired Space & Atmospheric Weather Forecaster
Plant City, FL, USA
Grid Square EL87WX
Lat & Long 27 58 33.6397 N 82 09 52.4052 W
kn4lf@arrl.net
Propagation eGroup: http://lists.contesting.com/mailman/listinfo/propagation
KN4LF Daily Solar Space Weather & Geomagnetic Data Archive:
http://www.kn4lf.com/kn4lf5.htm
KN4LF Amateur & SWL Radio History: http://www.kn4lf.com
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