:Issued: 2007 May 09 1156 UTC :Product: documentation at http://www.sidc.be/products/meu #--------------------------------------------------------------------# # DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC # # (RWC Belgium) # #--------------------------------------------------------------------# SIDC URSIGRAM 70509 SIDC SOLAR BULLETIN 09 May 2007, 1131UT SIDC FORECAST (valid from 1230UT, 09 May 2007 until 11 May 2007) SOLAR FLARES : Quiet conditions (<50% probability of C-class flares) GEOMAGNETISM : Quiet (A<20 and K<4) SOLAR PROTONS : Quiet PREDICTIONS FOR 09 May 2007 10CM FLUX: 073 / AP: 010 PREDICTIONS FOR 10 May 2007 10CM FLUX: 073 / AP: 011 PREDICTIONS FOR 11 May 2007 10CM FLUX: 073 / AP: 011 COMMENT: Solar activity is expected to be mostly quiet, with a small chance of C-class flaring activity from an unnumbered AR approximately located at S10E30. NOAA AR 0953, now behind the west limb is the likely candidate for a B8 flare which occured on May 9th at 02UT. Geomagnetic activity is expected to be mostly quiet for the next 48 hours with a chance of isolated unsettled conditions. The Earth is within a high-speed stream from a coronal hole, whith solar wind speed measurements of about 600 km/s. TODAY'S ESTIMATED ISN : 011, BASED ON 05 STATIONS. SOLAR INDICES FOR 8 May 2007 WOLF NUMBER CATANIA : 012 10CM SOLAR FLUX : 073 AK CHAMBON LA FORET : 024 AK WINGST : 016 ESTIMATED AP : 017 ESTIMATED ISN : 009, BASED ON 12 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. # # #--------------------------------------------------------------------#