:Issued: 2005 Apr 29 1232 UTC :Product: documentation at http://sidc.oma.be/products/meu #--------------------------------------------------------------------# # DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC # # (RWC Belgium) # #--------------------------------------------------------------------# SIDC URSIGRAM 50429 SIDC SOLAR BULLETIN 29 Apr 2005, 1225UT SIDC FORECAST (valid from 1230UT, 29 Apr 2005 until 01 May 2005) SOLAR FLARES : Eruptive (C-class flares expected, probability >= 50%) GEOMAGNETISM : Quiet (A<20 and K<4) SOLAR PROTONS : Quiet PREDICTIONS FOR 29 Apr 2005 10CM FLUX: 100 / AP: 004 PREDICTIONS FOR 30 Apr 2005 10CM FLUX: 102 / AP: 007 PREDICTIONS FOR 01 May 2005 10CM FLUX: 104 / AP: 019 COMMENT: Flaring activity is diminished. The sunspot groups 56 (NOAA 0756) and 57 (NOAA 757) stopped growing in size. C-flares are although still possible. We are experiencing quiet geomagnetic conditions. From May 1 onwards, a recurrent northern coronal hole can lead to minor storm conditions. SOLAR INDICES FOR 28 Apr 2005 SUNSPOT INDEX : 053 10CM SOLAR FLUX : 098 AK CHAMBON LA FORET : 006 AK WINGST : 003 ESTIMATED AP : 003 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.oma.be. 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. # #--------------------------------------------------------------------#