:Issued: 2006 Aug 07 1302 UTC :Product: documentation at http://www.sidc.be/products/meu #--------------------------------------------------------------------# # DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC # # (RWC Belgium) # #--------------------------------------------------------------------# SIDC URSIGRAM 60807 SIDC SOLAR BULLETIN 07 Aug 2006, 1457UT SIDC FORECAST (valid from 1230UT, 07 Aug 2006 until 09 Aug 2006) 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 07 Aug 2006 10CM FLUX: 070 / AP: 032 PREDICTIONS FOR 08 Aug 2006 10CM FLUX: 071 / AP: 010 PREDICTIONS FOR 09 Aug 2006 10CM FLUX: 073 / AP: 006 COMMENT: A shock was measeured yesterday late (just before UT midnight) by the ACE spacecraft. Since then, the solar wind speed has been increasing sharply and is currently at 500km/s. The z-component of the interplanetary magnetic field is oscillating. All this is leading to disturbed geomagnetic conditions (Kp~4 to 5) in the coming 24hrs. TODAY'S ESTIMATED ISN : 000, BASED ON 14 STATIONS. SOLAR INDICES FOR 6 Aug 2006 WOLF NUMBER CATANIA : /// 10CM SOLAR FLUX : 070 AK CHAMBON LA FORET : 007 AK WINGST : 005 ESTIMATED AP : 003 ESTIMATED ISN : 000, BASED ON 15 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 # # 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. # #--------------------------------------------------------------------#