:Issued: 2010 Apr 19 1247 UTC :Product: documentation at http://www.sidc.be/products/meu #--------------------------------------------------------------------# # DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC # # (RWC Belgium) # #--------------------------------------------------------------------# SIDC URSIGRAM 00419 SIDC SOLAR BULLETIN 19 Apr 2010, 1238UT SIDC FORECAST (valid from 1230UT, 19 Apr 2010 until 21 Apr 2010) SOLAR FLARES : Quiet conditions (<50% probability of C-class flares) GEOMAGNETISM : Quiet (A<20 and K<4) SOLAR PROTONS : Quiet PREDICTIONS FOR 19 Apr 2010 10CM FLUX: 076 / AP: 005 PREDICTIONS FOR 20 Apr 2010 10CM FLUX: 078 / AP: 004 PREDICTIONS FOR 21 Apr 2010 10CM FLUX: 079 / AP: 009 COMMENT: Flaring activity is quiet. Measurements of the interplanetary plasma reveal also quiet conditions. There are no geomagnetic disturbances. The partial halo CME of Apr 13 is not geoeffective. TODAY'S ESTIMATED ISN : 000, BASED ON 15 STATIONS. SOLAR INDICES FOR 18 Apr 2010 WOLF NUMBER CATANIA : /// 10CM SOLAR FLUX : 075 AK CHAMBON LA FORET : /// AK WINGST : 004 ESTIMATED AP : 003 ESTIMATED ISN : 000, BASED ON 22 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 # #--------------------------------------------------------------------#