:Issued: 2009 Oct 26 1301 UTC :Product: documentation at http://www.sidc.be/products/meu #--------------------------------------------------------------------# # DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC # # (RWC Belgium) # #--------------------------------------------------------------------# SIDC URSIGRAM 91026 SIDC SOLAR BULLETIN 26 Oct 2009, 1239UT SIDC FORECAST (valid from 1230UT, 26 Oct 2009 until 28 Oct 2009) SOLAR FLARES : Quiet conditions (<50% probability of C-class flares) GEOMAGNETISM : Quiet (A<20 and K<4) SOLAR PROTONS : Quiet PREDICTIONS FOR 26 Oct 2009 10CM FLUX: 075 / AP: 003 PREDICTIONS FOR 27 Oct 2009 10CM FLUX: 074 / AP: 002 PREDICTIONS FOR 28 Oct 2009 10CM FLUX: 073 / AP: 001 COMMENT: NOAA active region 1029 has a beta-gamma configuration. Although it only produced A - and B-class flares during the past 24h, it still has C-class flaring potential. The geomagnetic conditions are expected to remain quiet as the recurrent coronal hole is rotating out of its geo-effective position. TODAY'S ESTIMATED ISN : 020, BASED ON 06 STATIONS. SOLAR INDICES FOR 25 Oct 2009 WOLF NUMBER CATANIA : /// 10CM SOLAR FLUX : 072 AK CHAMBON LA FORET : /// AK WINGST : 006 ESTIMATED AP : 005 ESTIMATED ISN : 018, BASED ON 16 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. # # To unsubscribe, visit http://sidc.be/registration/unsub.php # #--------------------------------------------------------------------#