> :Issued: 2005 Apr 24 1243 UTC
> :Product: documentation at http://sidc.oma.be/products/meu
> #--------------------------------------------------------------------#
> # DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC #
> # (RWC Belgium) #
> #--------------------------------------------------------------------#
> SIDC URSIGRAM 50424
> SIDC SOLAR BULLETIN 24 Apr 2005, 0902UT
> SIDC FORECAST (valid from 1230UT, 24 Apr 2005 until 26 Apr 2005)
> SOLAR FLARES : Quiet conditions (<50% probability of C-class flares)
> GEOMAGNETISM : Active conditions expected (A>=20 or K=4)
> SOLAR PROTONS : Quiet
> PREDICTIONS FOR 24 Apr 2005 10CM FLUX: 078 / AP: 017
> PREDICTIONS FOR 25 Apr 2005 10CM FLUX: 077 / AP: 012
> PREDICTIONS FOR 26 Apr 2005 10CM FLUX: 078 / AP: 007
> COMMENT: Solar activity remains very low, though the X-ray background
> has risen from A- to B-level due to the active region lying at the east
> limb. We expect conditions to remain quiet.
> We are still under the influence of a high speed solar wind stream from
> a coronal hole. The wind speed is currently about 550 km/s and slowly
> decreasing. Since the IMF is mainly northwards, geomagnetic conditions
> so far have remained largely quiet (though the NOAA estimated Kp index
> reached 4 earlier today. The coronal hole influence is expected to wear
> off, but we may still get some periods of active conditions. A small
> equatorial coronal hole is currently just west of the central solar
> meridian and may start to influence the earth in 2-3 days.
>
> SOLAR INDICES FOR 23 Apr 2005
> SUNSPOT INDEX : 037
> 10CM SOLAR FLUX : 079
> AK CHAMBON LA FORET : 011
> AK WINGST : ///
> ESTIMATED AP : 009
>
> NOTICEABLE EVENTS SUMMARY
> DAY BEGIN MAX END LOC XRAY OP 10CM RADIO BURST TYPES Catania
> NOAA NOTE
> NONE
> END
> BT
>
> #--------------------------------------------------------------------#
> # 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 #
> # #
> # For more information, see http://sidc.oma.be. Please do not reply #
> # directly to this message, but send comments and suggestions to #
> # 'sidctech@oma.be'. If you are unable to use that address, use #
> # 'rvdlinden@spd.aas.org' instead. #
> #--------------------------------------------------------------------#
73 & GUD DX,
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
Contesting Propagation eReflector:
http://lists.contesting.com/mailman/listinfo/propagation
HC-DX Propagation Channel:
http://www.hard-core-dx.com/index.php?topic=Propagation
KN4LF Daily Solar Space Weather & Geomagnetic Data Archive:
http://www.kn4lf.com/kn4lf5.htm
KN4LF Daily LF/MF/HF Radio Propagation Outlook:
http://www.kn4lf.com/kn4lf6.htm
KN4LF HF/MF Radio Propagation Theory Notes: http://www.kn4lf.com/kn4lf8.htm
KN4LF Amateur & SWL Radio History: http://www.kn4lf.com/index.htm
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