:Issued: 2012 Feb 28 1245 UTC :Product: documentation at http://www.sidc.be/products/meu #--------------------------------------------------------------------# # DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC # # (RWC Belgium) # #--------------------------------------------------------------------# SIDC URSIGRAM 20228 SIDC SOLAR BULLETIN 28 Feb 2012, 1239UT SIDC FORECAST (valid from 1230UT, 28 Feb 2012 until 01 Mar 2012) SOLAR FLARES : Quiet conditions (<50% probability of C-class flares) GEOMAGNETISM : Quiet (A<20 and K<4) SOLAR PROTONS : Quiet PREDICTIONS FOR 28 Feb 2012 10CM FLUX: 106 / AP: 011 PREDICTIONS FOR 29 Feb 2012 10CM FLUX: 106 / AP: 005 PREDICTIONS FOR 01 Mar 2012 10CM FLUX: 106 / AP: 003 COMMENT: Flaring activity is low. There is only a small chance for C-flares. The shock preceding the CME that left the sun on Feb 24, arrived on Sunday Feb 26, 21 UT. The ACE spacecraft went through the cloud late on Feb 27. At the moment, the geomagnetic conditions are quiet to unsettled. The proton flux has normalised. TODAY'S ESTIMATED ISN : 030, BASED ON 04 STATIONS. SOLAR INDICES FOR 27 Feb 2012 WOLF NUMBER CATANIA : 045 10CM SOLAR FLUX : 106 AK CHAMBON LA FORET : 039 AK WINGST : 031 ESTIMATED AP : 029 ESTIMATED ISN : 029, BASED ON 23 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 # #--------------------------------------------------------------------#