:Issued: 2010 Apr 29 1419 UTC :Product: documentation at http://www.sidc.be/products/meu #--------------------------------------------------------------------# # DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC # # (RWC Belgium) # #--------------------------------------------------------------------# SIDC URSIGRAM 00429 SIDC SOLAR BULLETIN 29 Apr 2010, 1414UT SIDC FORECAST (valid from 1230UT, 29 Apr 2010 until 01 May 2010) SOLAR FLARES : Quiet conditions (<50% probability of C-class flares) GEOMAGNETISM : Quiet (A<20 and K<4) SOLAR PROTONS : Quiet PREDICTIONS FOR 29 Apr 2010 10CM FLUX: 076 / AP: 008 PREDICTIONS FOR 30 Apr 2010 10CM FLUX: 076 / AP: 012 PREDICTIONS FOR 01 May 2010 10CM FLUX: 076 / AP: 007 COMMENT: Solar activity is very low. NOAA reported a tiny sunspot group, 11063, Catania did not assign it a number yet. Geomagnetic conditions have ranged from quiet to unsettled and may continue in similar levels due to what seems to be a weak coronal hole solar wind (~400km/s) with rather high magnetic field (~5-10nT). TODAY'S ESTIMATED ISN : 000, BASED ON 24 STATIONS. SOLAR INDICES FOR 28 Apr 2010 WOLF NUMBER CATANIA : 023 10CM SOLAR FLUX : 076 AK CHAMBON LA FORET : /// AK WINGST : 004 ESTIMATED AP : 003 ESTIMATED ISN : 003, BASED ON 30 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 # #--------------------------------------------------------------------#