:Issued: 2012 Jan 12 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 20112 SIDC SOLAR BULLETIN 12 Jan 2012, 1251UT SIDC FORECAST (valid from 1230UT, 12 Jan 2012 until 14 Jan 2012) SOLAR FLARES : Eruptive (C-class flares expected, probability >= 50%) GEOMAGNETISM : Quiet (A<20 and K<4) SOLAR PROTONS : Quiet PREDICTIONS FOR 12 Jan 2012 10CM FLUX: 118 / AP: 004 PREDICTIONS FOR 13 Jan 2012 10CM FLUX: 116 / AP: 001 PREDICTIONS FOR 14 Jan 2012 10CM FLUX: 114 / AP: 001 COMMENT: A long duration C2.5 flare occurred this morning and originated from the west limb of the sun, probably from NOAA AR 11393 and/or 11391, two active regions that are turning of the disk. In the north-east a CME occurred this morning, first visible as a partial halo CME in STEREO/COR2-B images at around 9UT. We have to await SOHO/LASCO to estimate its direction with respect to the earth. Geomagnetic conditions are quiet and expected to remain so for the next 48 hours. TODAY'S ESTIMATED ISN : 036, BASED ON 06 STATIONS. SOLAR INDICES FOR 11 Jan 2012 WOLF NUMBER CATANIA : 089 10CM SOLAR FLUX : 120 AK CHAMBON LA FORET : 010 AK WINGST : 007 ESTIMATED AP : 005 ESTIMATED ISN : 041, BASED ON 18 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 # #--------------------------------------------------------------------#