:Issued: 2007 Jan 02 1328 UTC :Product: documentation at http://www.sidc.be/products/meu #--------------------------------------------------------------------# # DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC # # (RWC Belgium) # #--------------------------------------------------------------------# SIDC URSIGRAM 70102 SIDC SOLAR BULLETIN 02 Jan 2007, 1314UT SIDC FORECAST (valid from 1230UT, 02 Jan 2007 until 04 Jan 2007) SOLAR FLARES : Quiet conditions (<50% probability of C-class flares) GEOMAGNETISM : Minor geomagnetic storm expected (A>=30 or K=5) SOLAR PROTONS : Quiet PREDICTIONS FOR 02 Jan 2007 10CM FLUX: 088 / AP: 028 PREDICTIONS FOR 03 Jan 2007 10CM FLUX: 089 / AP: 035 PREDICTIONS FOR 04 Jan 2007 10CM FLUX: 090 / AP: 026 COMMENT: Geomagnetic conditions are expected to remain predominantly active with occasional minor storming due to the influence of a fast stream from a recurrent coronal hole. The solar wind speed is presently ~600km/s which is around the fastest speed attained during previous rotations; whilst conditions have been generally active so far only a modest intensification of the wind speed or IMF would lead to minor storm conditions. Solar activity is expected to remain quiet with NOAA AR 0933 (Catania 09) capable of an isolated C-class event. TODAY'S ESTIMATED ISN : 026, BASED ON 07 STATIONS. SOLAR INDICES FOR 1 Jan 2007 WOLF NUMBER CATANIA : /// 10CM SOLAR FLUX : 087 AK CHAMBON LA FORET : 098 AK WINGST : 012 ESTIMATED AP : 027 ESTIMATED ISN : 024, BASED ON 04 STATIONS. 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.be/products/meu. # # 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. # # #--------------------------------------------------------------------#